LP8340
Low Dropout, Low IQ, 1.0A CMOS Linear Regulator
Overview
Diagrams
Parametrics
Documents
Order
Packaging
Tools
Reliability
Obsolete
Versions
Features
±1.5% Typical VOUT tolerance
420mV Typical Dropout @ 1.0A (VO = 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▲ Stable With Ceramic Output Capacitors
LP38692▲ With Enable Pin, <1uA Shutdown-state Current
Parameters / 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, 2.5, 3.3, 5 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
0.45, 0.95, 0.8, 0.65 Volt
Adjustable Output Yes
No
No
Quiescent Current 0.019 mA
0.055 mA
0.055 mA
On/Off Pin No
No
Yes
PowerGood / 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, 2.5, 3.3, 5 Volt
Output Max 9.3 Volt
1.8, 5.0, 2.5, 3.3 Volt
1.8, 2.5, 3.3, 5 Volt
Part Number(s) (NSID) Top View Availability Current Reported Stock Budgetary Pricing Pack Size
LP8340ILDX-ADJ/NOPB LP8340ILDX-ADJ
RoHS Status LLP Full production Lead Time: 6 weeks
$0.53 each at 1K+ pcs reel of 4500
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
All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html .
Moisture Sensitivity Level Data for LP8340 .
A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html .
National's certificate of product compliance for LP8340 is located at RoHS Status .
All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html .
Moisture Sensitivity Level Data for LP8340 .
A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html .
National's certificate of product compliance for LP8340 is located at RoHS Status .
CAD Symbols and Models
Models
Reliability Metrics
Part Number
Process
EFR Reject
EFR Sample Size
PPM
LTA Rejects
LTA Device Hours
FITS
MTTF (Hours)
LP8340ILDX-ADJ ABCD150 0 42680 0 0 6394000 1 1814314958
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 .
All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html .
Moisture Sensitivity Level Data for LP8340 .
A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html .
National's certificate of product compliance for LP8340 is located at RoHS Status .
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
[Information as of 9-Feb-2012]
Copyright © 2011 National Semiconductor Corporation