LP8340 - Low Dropout, Low IQ, 1.0A CMOS Linear Regulator

LP8340

Low Dropout, Low IQ, 1.0A CMOS Linear Regulator

Overview

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Diagrams

Parametrics

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Packaging

Reliability

Obsolete

Features

±1.5% Typical V_OUTtolerance

420mV Typical Dropout @ 1.0A (V_O = 5V)

Wide Operating Range

2.7V to 10V

Internal 1.0A PMOS Output Transistor

19µA Typical Quiescent Current

Thermal Overload Limiting

Foldback Current Limiting

Zener Trimmed Bandgap Reference

Space saving LLP package

Temperature Range

LP8340C

0°C to 125°C

LP8340I

-40°C to 125°C

Description
The LP8340 low-dropout CMOS linear regulator is available in 5V, 3.3V, 2.5V, 1.8V and adjustable output versions. Packaged in the 6ld LLP package and 3ld DPAK. The LP8340 can deliver up to 1.0A output current.

Typical dropout voltage is 420mV at 1.0A for the 5.0V version, 540mV at 1.0A for the 3.3V version, 670mV at 1.0A for the 2.5V version and 680mV at 800mA for the 1.8V version.

The LP8340 includes a zener trimmed bandgap voltage reference, foldback current limiting and thermal overload limiting.

The LP8340 features a PMOS output transistor which unlike PNP type low dropout regulators requires no base drive current. This allows the device ground current to remain less than 50µA over operating temperature, supply voltage and irrespective of the load current.

Applications

• Hard Disk Drives

• Notebook Computers

• Battery Powered Electronics

• Portable Instrumentation

Also Recommended

LP38690▲ Lower Quiescent Current, Stable With Ceramic Output Capacitors

LP38692▲ With Enable Pin

MY BRIEFCASE

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LP8340

Also Recommended

LP38690▲	Lower Quiescent Current, Stable With Ceramic Output Capacitors
LP38692▲	With Enable Pin

Typical Application click for larger image

Block Diagram *click for larger image

Typical Performance *click for larger image

Paramaters / Values	LP8340	LP38690	LP38692
Output Current	1000 mA	1000 mA	1000 mA
Output Min	1.25 Volt	1.8, 5.0, 2.5, 3.3 Volt	1.8, 5.0, 2.5, 3.3 Volt
Input Min Voltage	2.7 Volt	2.75, 3.95, 3.3, 5.45 Volt	2.95, 2.7, 5.45, 3.75 Volt
Input Max Voltage	10 Volt	10 Volt	10 Volt
Dropout Voltage	0.54 Volt	0.45, 0.95, 0.8, 0.65 Volt	0.2 Volt
Adjustable Output	Yes	No	No
Quiescent Current	0.019 mA	0.055 mA	0.055 mA
On/Off Pin	No	No	Yes
Error Flag	No	No	No
RegType	LDO	LDO	LDO
Temperature Min	0 deg C	-40 deg C	-40 deg C
Temperature Max	125 deg C	125 deg C	125 deg C
Output Voltage	Undefined Volt	1.8, 5.0, 2.5, 3.3 Volt	1.8, 5.0, 2.5, 3.3 Volt
Output Max	9.3 Volt	1.8, 5.0, 2.5, 3.3 Volt	1.8, 5.0, 2.5, 3.3 Volt

Datasheet
Title Size Date Other
Language

LP8340 Low Dropout, Low IQ, 1.0A CMOS Linear Regulator 685
Kbytes 3-May-05

Featured Application Notes
Title Size Date Other
Language

AN-1377: Application Note 1377 LP3996 / LP5996 Application Board Information 514
Kbytes 3-Nov-06 中文

More Application Notes
Title Size Date Other
Language

AN-1584: Application Note 1584 LP5990 microSMD Evaluation Board 261
Kbytes 13-Jun-07 日本語

Part Number(s)
(NSID)

Top View

Availability

Current Reported Stock

Budgetary Pricing

Standard Pack Size

LP8340CLD-1.8/NOPB

RoHS

Lifetime buy
Lead Time: 8 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	890

$0.56 each at 1K+ pcs

reel
of
1000

LP8340CLD-2.5/NOPB

RoHS

Lifetime buy
Lead Time: 8 weeks

Distributor		Region	Qty
AVNET-EM		Worldwide	4000
DIGIKEY		Worldwide	0

$0.56 each at 1K+ pcs

reel
of
1000

LP8340CLD-3.3/NOPB

RoHS

Lifetime buy
Lead Time: 8 weeks

Distributor		Region	Qty
AVNET-EM		Worldwide	953
DIGIKEY		Worldwide	0

$0.56 each at 1K+ pcs

reel
of
1000

LP8340CLD-5.0/NOPB

RoHS

Lifetime buy
Lead Time: 8 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	32

$0.56 each at 1K+ pcs

reel
of
1000

LP8340CLD-ADJ/NOPB

RoHS

Lifetime buy
Lead Time: 8 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	34
TECHMOSA		Asia Pacific	1000

$0.56 each at 1K+ pcs

reel
of
1000

LP8340ILD-1.8/NOPB
LP8340ILD-1.8

RoHS

Lifetime buy
Lead Time: 8 weeks

Distributor		Region	Qty
AVNET-EM		Worldwide	1000
DIGIKEY		Worldwide	0

$0.58 each at 1K+ pcs

reel
of
1000

LP8340ILD-3.3/NOPB

RoHS

Lifetime buy
Lead Time: 8 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.58 each at 1K+ pcs

reel
of
1000

LP8340ILD-5.0/NOPB

RoHS

Lifetime buy
Lead Time: 8 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.55 each at 1K+ pcs

reel
of
1000

LP8340ILD-ADJ/NOPB

RoHS

Lifetime buy
Lead Time: 8 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.58 each at 1K+ pcs

reel
of
1000

LP8340CLDX-2.5/NOPB

RoHS

Lifetime buy
Lead Time: 8 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0
TECHMOSA		Asia Pacific	4500

$0.56 each at 1K+ pcs

reel
of
4500

LP8340CLDX-3.3

RoHS

Lifetime buy
Lead Time: 16 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.56 each at 1K+ pcs

reel
of
4500

LP8340CLDX-ADJ/NOPB

RoHS

Lifetime buy
Lead Time: 8 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.56 each at 1K+ pcs

reel
of
4500

LP8340ILDX-ADJ/NOPB

RoHS

Full production
Lead Time: 8 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.58 each at 1K+ pcs

reel
of
4500

LP8340CDT-1.8/NOPB

RoHS

Lifetime buy
Lead Time: 8 weeks

Distributor	Region	Qty
ARROW	Worldwide	235
DIGIKEY	Worldwide	17
FARNELL	Europe and Asia	1090
NEWARK	Americas	93

$0.58 each at 1K+ pcs

rail
of
75

LP8340CDT-2.5/NOPB

RoHS

Lifetime buy
Lead Time: 8 weeks

Distributor	Region	Qty
ARROW	Worldwide	375
DIGIKEY	Worldwide	211
FARNELL	Europe and Asia	1085
FUTURE	Worldwide	1100

$0.58 each at 1K+ pcs

rail
of
75

LP8340CDT-3.3/NOPB

RoHS

Lifetime buy
Lead Time: 8 weeks

Distributor	Region	Qty
ARROW	Worldwide	750
AVNET-EM	Worldwide	545
DIGIKEY	Worldwide	0
FARNELL	Europe and Asia	3225
FUTURE	Worldwide	75
NEWARK	Americas	107

$0.58 each at 1K+ pcs

rail
of
75

LP8340CDT-5.0/NOPB
LP8340CDT-5.0

RoHS

Lifetime buy
Lead Time: 8 weeks

Distributor	Region	Qty
ARROW	Worldwide	1050
AVNET-EM	Worldwide	373
DIGIKEY	Worldwide	0
FARNELL	Europe and Asia	1396
KEIKONG	Asia Pacific	90
NEWARK	Americas	139

$0.58 each at 1K+ pcs

rail
of
75

LP8340IDT-1.8/NOPB

RoHS

Lifetime buy
Lead Time: 8 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.59 each at 1K+ pcs

rail
of
75

LP8340IDT-2.5/NOPB

RoHS

Lifetime buy
Lead Time: 8 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.59 each at 1K+ pcs

rail
of
75

LP8340IDT-3.3/NOPB

RoHS

Lifetime buy
Lead Time: 8 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.59 each at 1K+ pcs

rail
of
75

LP8340IDT-5.0/NOPB

RoHS

Lifetime buy
Lead Time: 8 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.59 each at 1K+ pcs

rail
of
75

LP8340CDTX-1.8/NOPB

RoHS

Lifetime buy
Lead Time: 8 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.58 each at 1K+ pcs

reel
of
2500

LP8340CDTX-2.5/NOPB

RoHS

Lifetime buy
Lead Time: 8 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.58 each at 1K+ pcs

reel
of
2500

LP8340CDTX-3.3/NOPB

RoHS

Lifetime buy
Lead Time: 8 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.58 each at 1K+ pcs

reel
of
2500

LP8340CDTX-5.0/NOPB

RoHS

Lifetime buy
Lead Time: 8 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.58 each at 1K+ pcs

reel
of
2500

LP8340IDTX-2.5

RoHS

Lifetime buy
Lead Time: 12 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.59 each at 1K+ pcs

reel
of
2500

LP8340IDTX-3.3/NOPB

RoHS

Lifetime buy
Lead Time: 6 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$0.59 each at 1K+ pcs

reel
of
2500

Obsolete Versions

Obsolete Part Alternate Part or Supplier Source Last Time Buy Date

LP8340CDT-1.8
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009

LP8340CDT-2.5
LP38690DT-2.5
National Semiconductor
30 Nov 2009

LP8340CDT-3.3
LP38690DT-3.3
National Semiconductor
30 Nov 2009

LP8340CDT-5.0
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009

LP8340CDTX-1.8
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009

LP8340CDTX-2.5
LP38690DTX-2.5
National Semiconductor
30 Nov 2009

LP8340CDTX-3.3
LP38690DTX-3.3
National Semiconductor
30 Nov 2009

LP8340CDTX-5.0
LP38690DTX-5.0
National Semiconductor
30 Nov 2009

LP8340CLD-1.8
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009

LP8340CLD-2.5
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009

LP8340CLD-3.3
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009

LP8340CLD-5.0
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009

LP8340CLD-ADJ
LP38690SD-ADJ
National Semiconductor
30 Nov 2009

LP8340CLDX-2.5
LP38690SDX-2.5
National Semiconductor
30 Nov 2009

LP8340CLDX-3.3
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009

LP8340CLDX-ADJ
LP38690SDX-ADJ
National Semiconductor
30 Nov 2009

LP8340IDT-1.8
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009

LP8340IDT-2.5
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009

LP8340IDT-3.3
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009

LP8340IDT-5.0
LP38690DT-5.0
National Semiconductor
30 Nov 2009

LP8340IDTX-2.5
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009

LP8340IDTX-3.3
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009

LP8340ILD-1.8
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009

LP8340ILD-3.3
LP38690SD-3.3
National Semiconductor
30 Nov 2009

LP8340ILD-5.0
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009

LP8340ILD-ADJ
LP38690SD-ADJ
National Semiconductor
30 Nov 2009

Part Number(s) (NSID)	Type	Pins	MSL Rating	Peak Reflow	RoHS	CAD Symbols	Models	Package Marking Format
LP8340CLD-1.8/NOPB	LLP	6	3	260	RoHS	Download	N/A	ZXYTT L042B
LP8340CLD-2.5/NOPB	LLP	6	3	260	RoHS	Download	N/A	ZXYTT L043B
LP8340CLD-3.3/NOPB	LLP	6	3	260	RoHS	Download	N/A	ZXYTT L051B
LP8340CLD-5.0/NOPB	LLP	6	3	260	RoHS	Download	N/A	ZXYTT L044B
LP8340CLD-ADJ/NOPB	LLP	6	3	260	RoHS	Download	N/A	ZXYTT L041B
LP8340ILD-1.8/NOPB LP8340ILD-1.8	LLP	6	3 1	260 235	RoHS	Download	N/A	ZXYTT L079B
LP8340ILD-3.3/NOPB	LLP	6	3	260	RoHS	Download	N/A	ZXYTT L081B
LP8340ILD-5.0/NOPB	LLP	6	3	260	RoHS	Download	N/A	ZXYTT L082B
LP8340ILD-ADJ/NOPB	LLP	6	3	260	RoHS	Download	N/A	ZXYTT L078B
LP8340CLDX-2.5/NOPB	LLP	6	3	260	RoHS	Download	N/A	ZXYTT L043B
LP8340CLDX-3.3	LLP	6			RoHS	Download	N/A	ZXYTT L051B
LP8340CLDX-ADJ/NOPB	LLP	6	3	260	RoHS	Download	N/A	ZXYTT L041B
LP8340ILDX-ADJ/NOPB	LLP	6	3	260	RoHS	Download	N/A	ZXYTT L078B
LP8340CDT-1.8/NOPB	TO-252	3	2	260	RoHS	Download	N/A	NSUZXYTT LP8340 CDT-1.8
LP8340CDT-2.5/NOPB	TO-252	3	2	260	RoHS	Download	N/A	NSUZXYTT LP8340 CDT-2.5
LP8340CDT-3.3/NOPB	TO-252	3	2	260	RoHS	Download	N/A	NSUZXYTT LP8340 CDT-3.3
LP8340CDT-5.0/NOPB LP8340CDT-5.0	TO-252	3	2 1	260 235	RoHS	Download	N/A	NSUZXYTT LP8340 CDT-5.0
LP8340IDT-1.8/NOPB	TO-252	3	2	260	RoHS	Download	N/A	NSUZXYTT LP8340 IDT-1.8
LP8340IDT-2.5/NOPB	TO-252	3	2	260	RoHS	Download	N/A	NSUZXYTT LP8340 IDT-2.5
LP8340IDT-3.3/NOPB	TO-252	3	2	260	RoHS	Download	N/A	NSUZXYTT LP8340 IDT-3.3
LP8340IDT-5.0/NOPB	TO-252	3	2	260	RoHS	Download	N/A	NSUZXYTT LP8340 IDT-5.0
LP8340CDTX-1.8/NOPB	TO-252	3	2	260	RoHS	Download	N/A	NSUZXYTT LP8340 CDT-1.8
LP8340CDTX-2.5/NOPB	TO-252	3	2	260	RoHS	Download	N/A	NSUZXYTT LP8340 CDT-2.5
LP8340CDTX-3.3/NOPB	TO-252	3	2	260	RoHS	Download	N/A	NSUZXYTT LP8340 CDT-3.3
LP8340CDTX-5.0/NOPB	TO-252	3	2	260	RoHS	Download	N/A	NSUZXYTT LP8340 CDT-5.0
LP8340IDTX-2.5	TO-252	3	1	235	RoHS	Download	N/A	NSUZXYTT LP8340 IDT-2.5
LP8340IDTX-3.3/NOPB	TO-252	3	2	260	RoHS	Download	N/A	NSUZXYTT LP8340 IDT-3.3

Reliability Metrics

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

LP8340CDT-1.8 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340CDT-2.5 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340CDT-3.3 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340CDT-5.0 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340CDTX-1.8 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340CDTX-2.5 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340CDTX-3.3 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340CDTX-5.0 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340CLD-1.8 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340CLD-2.5 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340CLD-3.3 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340CLD-5.0 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340CLD-ADJ ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340CLDX-2.5 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340CLDX-3.3 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340CLDX-ADJ ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340IDT-1.8 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340IDT-2.5 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340IDT-3.3 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340IDT-5.0 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340IDTX-2.5 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340IDTX-3.3 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340ILD-1.8 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340ILD-2.5 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340ILD-3.3 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340ILD-5.0 ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340ILD-ADJ ABCD150 0 34175 0 0 4234000 1 1201409060

LP8340ILDX-ADJ ABCD150 0 34175 0 0 4234000 1 1201409060

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.

For more information on Reliability Metrics, please click here.

[Information as of 22-Nov-2009]