LP3985 - Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator

LP3985

Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator

Overview

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Packaging

Reliability

Obsolete

Features

• Miniature 5-I/O micro SMD and SOT-23-5 package

• Logic controlled enable

• Stable with ceramic and high quality tantalum capacitors

• Fast turn-on

• Thermal shutdown and short-circuit current limit

Description
The LP3985 is designed for portable and wireless applications with demanding performance and space requirements.

The LP3985 is stable with a small 1µF ±30% ceramic or high-quality tantalum output capacitor. The micro SMD requires the smallest possible PC board area - the total application circuit area can be less than 2.0mm x 2.5mm, a fraction of a 1206 case size.

The LP3985's performance is optimized for battery powered systems to deliver ultra low noise, extremely low dropout voltage and low quiescent current. Regulator ground current increases only slightly in dropout, further prolonging the battery life.

An optional external bypass capacitor reduces the output noise without slowing down the load transient response. Fast start-up time is achieved by utilizing an internal power-on circuit that actively pre-charges the bypass capacitor.

Power supply rejection is better than 50 dB at low frequencies and starts to roll off at 1kHz. High power supply rejection is maintained down to low input voltage levels common to battery operated circuits.

The device is ideal for mobile phone and similar battery powered wireless applications. It provides up to 150 mA, from a 2.5V to 6V input. The LP3985 consumes less than 1.5µA in disable mode and has fast turn-on time less than 200µs.

The LP3985 is available in a 5 bump small bump micro SMD, a 5 bump large bump micro SMD, a 5 bump thin micro SMD and a 5 pin SOT-23 package. Performance is specified for -40°C to +125°C temperature range and is available in 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V. 3.1V, 3.2V, 3.3V, 4.7V, 4.75V, 4.8V and 5.0V output voltages. For other output voltage options between 2.5V to 5.0V or for a dual LP3985, please contact National Semiconductor sales office.

Key Specification

• 2.5 to 6.0V input range

• 150mA guaranteed output

• 50dB PSRR at 1kHz @ V_IN = V_OUT + 0.2V

• <=1.5µA quiescent current when shut down

• Fast Turn-On time: 200 µs (typ.)

• 100mV maximum dropout with 150mA load

• 30µVrms output noise (typ) over 10Hz to 100kHz

• -40 to +125°C junction temperature range for operation

• 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V, 3.1V, 3.2V, 3.3V, 4.7V, 4.75V, 4.8V and 5.0V outputs standard

Applications

• CDMA cellular handsets

• Wideband CDMA cellular handsets

• GSM cellular handsets

• Portable information appliances

Also Recommended

LP3986 Dual 150mA Output Version

LP3987▲ LP3985 W/ Sleep Mode

LP3988▲ LP3985 W/ Power Good Flag

LP3995▲ 25uV Noise, 60dB PSRR

LP3996 Dual 150mA

LP5900▲ Wide Selection Of Voltage Options, Supports Ceramic Capacitors

LP2983▲ 0.9V, 1.0V And 1.2V Output Options

LP3981▲ 300mA Version

MY BRIEFCASE

Click any "Briefcase" icon to add an item

LP3985

Also Recommended

LP3986	Dual 150mA Output Version
LP3987▲	LP3985 W/ Sleep Mode
LP3988▲	LP3985 W/ Power Good Flag
LP3995▲	25uV Noise, 60dB PSRR
LP3996	Dual 150mA
LP5900▲	Wide Selection Of Voltage Options, Supports Ceramic Capacitors
LP2983▲	0.9V, 1.0V And 1.2V Output Options
LP3981▲	300mA Version

Typical Application click for larger image

Block Diagram click for larger image

Typical Performance click for larger image

Paramaters / Values	LP3985	LP3987	LP3988	LP3995	LP5900	LP2983	LP3981
Output Current	150 mA	150 mA	150 mA	150 mA	150 mA	150 mA	300 mA
Output Min	2.6, 4.7, 2.7, 2.5, 3.2, 3.3, 3, 2.8, 2.9, 3.1, 5 Volt	2.85, 2.6, 2.8 Volt	2.85, 2.6, 2.5, 3 Volt	1.9, 3, 2.8 Volt	3.3, 2.8, 1.5 Volt	1, 1.2 Volt	2.83, 3.03, 2.7, 2.5, 3.3, 2.8 Volt
Input Min Voltage	2.5 Volt	3.05, 3, 2.8 Volt	2.7, 3.2, 2.8, 3.1 Volt	2.5, 2.9, 3.1 Volt	2.5 Volt	2.2 Volt	2.7 Volt
Input Max Voltage	6 Volt	6, 6.5 Volt	6 Volt	6 Volt	5.5 Volt	16 Volt	6 Volt
Dropout Voltage	0.06 Volt	0.06 Volt	0.08 Volt	0.06 Volt	0.08 Volt	1, 1.2 Volt	0.132 Volt
Adjustable Output	No	No	No	No	No	No	No
Quiescent Current	0.085 mA	0.085 mA	0.085 mA	0.085 mA	0.025 mA	0.065 mA	0.07 mA
PSRR	50 dB			60 dB	75 dB
Voltage Noise (rms)	30 uV			25 uV	6.5 uV
On/Off Pin	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Error Flag	No	No	Yes	No	No	No	No
RegType	LDO	LDO	LDO	LDO	LDO	LDO	LDO
Temperature Min	-40 deg C	-40 deg C	-40 deg C	-40 deg C	-40 deg C	-40 deg C	-40 deg C
Temperature Max	125 deg C	125 deg C	125 deg C	125 deg C	125 deg C	125 deg C	125 deg C
Output Voltage	2.6, 4.7, 2.7, 2.5, 3.2, 3.3, 3, 2.8, 2.9, 3.1, 5 Volt	2.85, 2.6, 2.8 Volt	2.85, 2.6, 2.5, 3 Volt	1.9, 3, 2.8 Volt	3.3, 2.8, 1.5 Volt	1, 1.2 Volt	2.83, 3.03, 2.7, 2.5, 3.3, 2.8 Volt
Output Max	2.6, 4.7, 2.7, 2.5, 3.2, 3.3, 3, 2.8, 2.9, 3.1, 5 Volt	2.85, 2.6, 2.8 Volt	2.85, 2.6, 2.5, 3 Volt	1.9, 3, 2.8 Volt	3.3, 2.8, 1.5 Volt	1, 1.2 Volt	2.83, 3.03, 2.7, 2.5, 3.3, 2.8 Volt

Datasheet
Title Size Date Other
Language

LP3985 Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator 993
Kbytes 23-Aug-05 日本語

Featured Application Notes
Title Size Date Other
Language

AN-1223: Application Note 1228 LP3986 microSMD Evaluation Board Instruction 29
Kbytes 14-May-04

AN-1219: Application Note 1219 LP3985 MicroSMD‐5 Evaluation Board Instruction 36
Kbytes 10-May-04

More Application Notes
Title Size Date Other
Language

AN-1228: Application Note 1228 LP3986 microSMD Evaluation Board Instruction 29
Kbytes 14-May-04

Part Number(s)
(NSID)

Top View

Availability

Current Reported Stock

Budgetary Pricing

Standard Pack Size

LP3985IM5-285/NOPB

RoHS

SOT-23

Lifetime buy
Lead Time: 12 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	5

$0.29 each at 1K+ pcs

reel
of
1000

LP3985IM5-3.1/NOPB

RoHS

SOT-23

Lifetime buy
Lead Time: 12 weeks

Distributor		Region	Qty
ARROW		Worldwide	6000
DIGIKEY		Worldwide	0

$0.29 each at 1K+ pcs

reel
of
1000

LP3985IM5-2.5/NOPB
LP3985IM5-2.5

RoHS

SOT-23

Full production
Lead Time: 12 weeks

Distributor	Region	Qty
ARROW	Worldwide	4000
AVNET-EM	Worldwide	1000
DIGIKEY	Worldwide	4173
FUTURE	Worldwide	1100
NEWARK	Americas	594
RS COMPONENTS	Worldwide	215

$0.29 each at 1K+ pcs

reel
of
1000

LP3985IM5-2.7/NOPB

RoHS

SOT-23

Full production
Lead Time: 12 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	1819
FUTURE		Worldwide	1100

$0.29 each at 1K+ pcs

reel
of
1000

LP3985IM5-2.8/NOPB
LP3985IM5-2.8

RoHS

SOT-23

Full production
Lead Time: 8 weeks

Distributor	Region	Qty
AVNET-EM	Worldwide	3000
DIGIKEY	Worldwide	5565
FUTURE	Worldwide	1100
KEIKONG	Asia Pacific	9000
NEWARK	Americas	2166

$0.29 each at 1K+ pcs

reel
of
1000

LP3985IM5-2.9/NOPB

RoHS

SOT-23

Full production
Lead Time: 12 weeks

Distributor	Region	Qty
AVNET-EM	Worldwide	2000
DIGIKEY	Worldwide	2141
FUTURE	Worldwide	1100

$0.29 each at 1K+ pcs

reel
of
1000

LP3985IM5-3.0/NOPB
LP3985IM5-3.0

RoHS

SOT-23

Full production
Lead Time: 6 weeks

Distributor	Region	Qty
ARROW	Worldwide	937
AVNET-EM	Worldwide	8000
DIGIKEY	Worldwide	9446
FUTURE	Worldwide	1100
NEWARK	Americas	430

$0.29 each at 1K+ pcs

reel
of
1000

LP3985IM5-3.2/NOPB
LP3985IM5-3.2

RoHS

SOT-23

Full production
Lead Time: 12 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	2234

$0.29 each at 1K+ pcs

reel
of
1000

LP3985IM5-3.3/NOPB
LP3985IM5-3.3

RoHS

SOT-23

Full production
Lead Time: 6 weeks

Distributor	Region	Qty
AITG	Asia Pacific	1001
ARROW	Worldwide	9000
AVNET-EM	Worldwide	5000
DIGIKEY	Worldwide	8045
FUTURE	Worldwide	1100
NEWARK	Americas	2421
RS COMPONENTS	Worldwide	850
TECHMOSA	Asia Pacific	1000

$0.29 each at 1K+ pcs

reel
of
1000

LP3985IM5-4.7/NOPB

RoHS

SOT-23

Full production
Lead Time: 6 weeks

Distributor	Region	Qty
ARROW	Worldwide	4000
DIGIKEY	Worldwide	2294
FUTURE	Worldwide	1100
TECHMOSA	Asia Pacific	1000

$0.29 each at 1K+ pcs

reel
of
1000

LP3985IM5-5.0/NOPB
LP3985IM5-5.0

RoHS

SOT-23

Full production
Lead Time: 12 weeks

Distributor	Region	Qty
ARROW	Worldwide	545
AVNET-EM	Worldwide	4000
DIGIKEY	Worldwide	4411
FUTURE	Worldwide	1100
NEWARK	Americas	750

$0.29 each at 1K+ pcs

reel
of
1000

LP3985IM5X-2.6/NOPB

RoHS

SOT-23

Lifetime buy
Lead Time: 12 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.29 each at 1K+ pcs

reel
of
3000

LP3985IM5X-2.9/NOPB

RoHS

SOT-23

Lifetime buy
Lead Time: 6 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.29 each at 1K+ pcs

reel
of
3000

LP3985IM5X-3.2/NOPB

RoHS

SOT-23

Lifetime buy
Lead Time: 6 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.29 each at 1K+ pcs

reel
of
3000

LP3985IM5X-2.5/NOPB

RoHS

SOT-23

Full production
Lead Time: 6 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.29 each at 1K+ pcs

reel
of
3000

LP3985IM5X-2.8/NOPB
LP3985IM5X-2.8

RoHS

SOT-23

Full production
Lead Time: 6 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.29 each at 1K+ pcs

reel
of
3000

LP3985IM5X-285/NOPB
LP3985IM5X-285

RoHS

SOT-23

Full production
Lead Time: 6 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.29 each at 1K+ pcs

reel
of
3000

LP3985IM5X-3.0/NOPB
LP3985IM5X-3.0

RoHS

SOT-23

Full production
Lead Time: 6 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0
FUTURE		Worldwide	1100

$0.29 each at 1K+ pcs

reel
of
3000

LP3985IM5X-3.3/NOPB
LP3985IM5X-3.3

RoHS

SOT-23

Full production
Lead Time: 6 weeks

Distributor	Region	Qty
ARROW	Worldwide	15000
DIGIKEY	Worldwide	0
FUTURE	Worldwide	1100

$0.29 each at 1K+ pcs

reel
of
3000

LP3985IM5X-4.7/NOPB
LP3985IM5X-4.7

RoHS

SOT-23

Full production
Lead Time: 6 weeks

Distributor		Region	Qty
ARROW		Worldwide	6000
DIGIKEY		Worldwide	0

$0.29 each at 1K+ pcs

reel
of
3000

LP3985IM5X-5.0/NOPB
LP3985IM5X-5.0

RoHS

SOT-23

Full production
Lead Time: 6 weeks

Distributor	Region	Qty
ARROW	Worldwide	6000
AVNET-EM	Worldwide	9000
DIGIKEY	Worldwide	0
TECHMOSA	Asia Pacific	9000

$0.29 each at 1K+ pcs

reel
of
3000

LP3985ITL-2.5/NOPB

RoHS

Full production
Lead Time: 12 weeks

Distributor		Region	Qty
ARROW		Worldwide	1000
DIGIKEY		Worldwide	1581

$0.32 each at 1K+ pcs

reel
of
250

LP3985ITL-2.6/NOPB

RoHS

Full production
Lead Time: 6 weeks

Distributor		Region	Qty
AVNET-EM		Worldwide	1250
DIGIKEY		Worldwide	0

$0.32 each at 1K+ pcs

reel
of
250

LP3985ITL-2.7/NOPB

RoHS

Full production
Lead Time: 6 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	1113
FARNELL		Europe and Asia	1865

$0.32 each at 1K+ pcs

reel
of
250

LP3985ITL-2.8/NOPB

RoHS

Full production
Lead Time: 6 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	1111
FUTURE		Worldwide	1100

$0.32 each at 1K+ pcs

reel
of
250

LP3985ITL-2.9/NOPB

RoHS

Full production
Lead Time: 6 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.32 each at 1K+ pcs

reel
of
250

LP3985ITL-285/NOPB

RoHS

Full production
Lead Time: 6 weeks

Distributor		Region	Qty
AVNET-EM		Worldwide	1250
DIGIKEY		Worldwide	5972

$0.32 each at 1K+ pcs

reel
of
250

LP3985ITL-3.0/NOPB

RoHS

Full production
Lead Time: 16 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	4661
FUTURE		Worldwide	1100

$0.32 each at 1K+ pcs

reel
of
250

LP3985ITL-3.1/NOPB

RoHS

Full production
Lead Time: 16 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.32 each at 1K+ pcs

reel
of
250

LP3985ITL-3.2/NOPB

RoHS

Full production
Lead Time: 16 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.32 each at 1K+ pcs

reel
of
250

LP3985ITL-3.3/NOPB

RoHS

Full production
Lead Time: 12 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	850

$0.32 each at 1K+ pcs

reel
of
250

LP3985ITL-4.75/NOPB

RoHS

Full production
Lead Time: 16 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.32 each at 1K+ pcs

reel
of
250

LP3985ITL-4.8/NOPB

RoHS

Full production
Lead Time: 12 weeks

Distributor		Region	Qty
AVNET-EM		Worldwide	250
DIGIKEY		Worldwide	0

$0.32 each at 1K+ pcs

reel
of
250

LP3985ITL-5.0/NOPB

RoHS

Full production
Lead Time: 12 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	1500

$0.32 each at 1K+ pcs

reel
of
250

LP3985ITLX-2.5/NOPB

RoHS

Full production
Lead Time: 12 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.32 each at 1K+ pcs

reel
of
3000

LP3985ITLX-2.6/NOPB

RoHS

Full production
Lead Time: 8 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.32 each at 1K+ pcs

reel
of
3000

LP3985ITLX-2.7/NOPB

RoHS

Full production
Lead Time: 8 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.32 each at 1K+ pcs

reel
of
3000

LP3985ITLX-2.8/NOPB

RoHS

Full production
Lead Time: 8 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0
KEIKONG		Asia Pacific	63000

$0.32 each at 1K+ pcs

reel
of
3000

LP3985ITLX-2.9/NOPB

RoHS

Full production
Lead Time: 8 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.32 each at 1K+ pcs

reel
of
3000

LP3985ITLX-285/NOPB

RoHS

Full production
Lead Time: 6 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0
FUTURE		Worldwide	1100

$0.32 each at 1K+ pcs

reel
of
3000

LP3985ITLX-3.0/NOPB

RoHS

Full production
Lead Time: 6 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.32 each at 1K+ pcs

reel
of
3000

LP3985ITLX-3.1/NOPB

RoHS

Full production
Lead Time: 12 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.32 each at 1K+ pcs

reel
of
3000

LP3985ITLX-3.2/NOPB

RoHS

Full production
Lead Time: 12 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.32 each at 1K+ pcs

reel
of
3000

LP3985ITLX-3.3/NOPB

RoHS

Full production
Lead Time: 6 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.32 each at 1K+ pcs

reel
of
3000

LP3985ITLX-4.75/NOPB

RoHS

Full production
Lead Time: 16 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.32 each at 1K+ pcs

reel
of
3000

LP3985ITLX-4.8/NOPB

RoHS

Full production
Lead Time: 16 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.32 each at 1K+ pcs

reel
of
3000

LP3985ITLX-5.0/NOPB

RoHS

Full production
Lead Time: 12 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.32 each at 1K+ pcs

reel
of
3000

Obsolete Versions

Obsolete Part Alternate Part or Supplier Source Last Time Buy Date

LP3985IBL-285
NONE
NATIONAL SEMICONDUCTOR
24 Jul 2009

LP3985IBL-2.5
LP3985ITL-2.5
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBL-2.6
LP3985ITL-2.6
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBL-2.7
LP3985ITL-2.7
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBL-2.8
LP3985ITL-2.8
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBL-2.9
LP3985ITL-2.9
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBL-3.0
LP3985ITL-3.0
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBL-3.1
LP3985ITL-3.1
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBL-3.2
LP3985ITL-3.2
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBL-3.3
LP3985ITL-3.3
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBL-4.8
LP3985ITL-4.8
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBL-5.0
LP3985ITL-5.0
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBLX-285
NONE
NATIONAL SEMICONDUCTOR
24 Jul 2009

LP3985IBLX-2.5
LP3985ITLX-2.5
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBLX-2.6
LP3985ITLX-2.6
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBLX-2.7
LP3985ITLX-2.7
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBLX-2.8
LP3985ITLX-2.8
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBLX-2.9
LP3985ITLX-2.9
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBLX-3.0
LP3985ITLX-3.0
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBLX-3.1
LP3985ITLX-3.1
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBLX-3.2
LP3985ITLX-3.2
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBLX-3.3
LP3985ITLX-3.3
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBLX-4.8
LP3985ITLX-4.8
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBLX-5.0
LP3985ITLX-5.0
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBP-285
NONE
NATIONAL SEMICONDUCTOR
24 Jul 2009

LP3985IBP-2.5
NONE
NATIONAL SEMICONDUCTOR
24 Jul 2009

LP3985IBP-2.7
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBP-2.8
NONE
NATIONAL SEMICONDUCTOR
24 Jul 2009

LP3985IBP-2.9
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBP-3.0
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBP-3.2
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBP-3.3
NONE
NATIONAL SEMICONDUCTOR
24 Jul 2009

LP3985IBP-5.0
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBPX-2.5
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBPX-2.7
NONE
NATIONAL SEMICONDUCTOR
24 Jul 2009

LP3985IBPX-2.8
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBPX-2.9
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBPX-3.0
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IBPX-3.1
NONE
NATIONAL SEMICONDUCTOR
24 Jul 2009

LP3985IBPX-3.3
NONE
NATIONAL SEMICONDUCTOR
24 Jul 2009

LP3985IM5-285
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009

LP3985IM5-2.6
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IM5-3.1
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009

LP3985IM5X-2.6
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009

LP3985IM5X-2.7
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IM5X-2.9
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009

LP3985IM5X-3.1
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008

LP3985IM5X-3.2
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009

Part Number(s) (NSID)	Type	Pins	MSL Rating	Peak Reflow	RoHS	CAD Symbols	Models	Package Marking Format
LP3985IM5-285/NOPB	SOT-23	5	1	260	RoHS	Download	N/A	LCXB XTT
LP3985IM5-3.1/NOPB	SOT-23	5	1	260	RoHS	Download	N/A	LCZB XTT
LP3985IM5-2.5/NOPB LP3985IM5-2.5	SOT-23	5	1 1	260 260	RoHS	Download	N/A	LCSB XTT
LP3985IM5-2.7/NOPB	SOT-23	5	1	260	RoHS	Download	N/A	LCUB XTT
LP3985IM5-2.8/NOPB LP3985IM5-2.8	SOT-23	5	1 1	260 260	RoHS	Download	N/A	LCJB XTT
LP3985IM5-2.9/NOPB	SOT-23	5	1	260	RoHS	Download	N/A	LCYB XTT
LP3985IM5-3.0/NOPB LP3985IM5-3.0	SOT-23	5	1 1	260 260	RoHS	Download	N/A	LCRB XTT
LP3985IM5-3.2/NOPB LP3985IM5-3.2	SOT-23	5	1 1	260 260	RoHS	Download	N/A	LDPB XTT
LP3985IM5-3.3/NOPB LP3985IM5-3.3	SOT-23	5	1 1	260 260	RoHS	Download	N/A	LDQB XTT
LP3985IM5-4.7/NOPB	SOT-23	5	1	260	RoHS	Download	N/A	LDRB XTT
LP3985IM5-5.0/NOPB LP3985IM5-5.0	SOT-23	5	1 1	260 260	RoHS	Download	N/A	LDSB XTT
LP3985IM5X-2.6/NOPB	SOT-23	5	1	260	RoHS	Download	N/A	LCTB XTT
LP3985IM5X-2.9/NOPB	SOT-23	5	1	260	RoHS	Download	N/A	LCYB XTT
LP3985IM5X-3.2/NOPB	SOT-23	5	1	260	RoHS	Download	N/A	LDPB XTT
LP3985IM5X-2.5/NOPB	SOT-23	5	1	260	RoHS	Download	N/A	LCSB XTT
LP3985IM5X-2.8/NOPB LP3985IM5X-2.8	SOT-23	5	1 1	260 260	RoHS	Download	N/A	LCJB XTT
LP3985IM5X-285/NOPB LP3985IM5X-285	SOT-23	5	1 1	260 260	RoHS	Download	N/A	LCXB XTT
LP3985IM5X-3.0/NOPB LP3985IM5X-3.0	SOT-23	5	1 1	260 260	RoHS	Download	N/A	LCRB XTT
LP3985IM5X-3.3/NOPB LP3985IM5X-3.3	SOT-23	5	1 1	260 260	RoHS	Download	N/A	LDQB XTT
LP3985IM5X-4.7/NOPB LP3985IM5X-4.7	SOT-23	5	1 1	260 260	RoHS	Download	N/A	LDRB XTT
LP3985IM5X-5.0/NOPB LP3985IM5X-5.0	SOT-23	5	1 1	260 260	RoHS	Download	N/A	LDSB XTT
LP3985ITL-2.5/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITL-2.6/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITL-2.7/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITL-2.8/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITL-2.9/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITL-285/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITL-3.0/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITL-3.1/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITL-3.2/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITL-3.3/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITL-4.75/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITL-4.8/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITL-5.0/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITLX-2.5/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITLX-2.6/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITLX-2.7/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITLX-2.8/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITLX-2.9/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITLX-285/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITLX-3.0/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITLX-3.1/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITLX-3.2/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITLX-3.3/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITLX-4.75/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITLX-4.8/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5
LP3985ITLX-5.0/NOPB	MICRO SMD	5	1	260	RoHS	Download	N/A	XV I 5

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)

LP3985IM5-2.5 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985IM5-2.6 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985IM5-2.7 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985IM5-2.8 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985IM5-2.9 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985IM5-285 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985IM5-3.0 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985IM5-3.1 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985IM5-3.2 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985IM5-3.3 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985IM5-4.7 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985IM5-5.0 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985IM5X-2.5 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985IM5X-2.6 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985IM5X-2.7 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985IM5X-2.8 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985IM5X-2.9 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985IM5X-285 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985IM5X-3.0 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985IM5X-3.1 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985IM5X-3.2 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985IM5X-3.3 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985IM5X-4.7 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985IM5X-5.0 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITL-2.5 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITL-2.6 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITL-2.7 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITL-2.8 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITL-2.9 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITL-285 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITL-3.0 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITL-3.1 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITL-3.2 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITL-3.3 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITL-4.75 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITL-4.8 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITL-5.0 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITLX-2.5 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITLX-2.6 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITLX-2.7 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITLX-2.8 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITLX-2.9 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITLX-285 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITLX-3.0 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITLX-3.1 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITLX-3.2 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITLX-3.3 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITLX-4.75 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITLX-4.8 CMOS7 0 18406 0 0 1089000 4 309006723

LP3985ITLX-5.0 CMOS7 0 18406 0 0 1089000 4 309006723

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

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[Information as of 22-Nov-2009]