Atec Superior-Electric-L116b - Manual

LP38690
LP38692
1A Low Dropout CMOS Linear RegulatorsStable with Ceramic Output
Capacitors
General Description
The LP38690/2 low dropout CMOS linear regulators provide
tight output tolerance (2.5% typical), extremely low dropout
voltage (450mV @ 1A load current, V
OUT
= 5V), and excellent
AC performance utilizing ultra low ESR ceramic output ca-
pacitors.
The low thermal resistance of the LLP, SOT-223 and T0-252
packages allow the full operating current to be used even in
high ambient temperature environments.
The use of a PMOS power transistor means that no DC base
drive current is required to bias it allowing ground pin current
to remain below 100 µA regardless of load current, input volt-
age, or operating temperature.
Dropout Voltage: 450 mV (typ) @ 1A (typ. 5V out).
Ground Pin Current: 55 µA (typ) at full load.
Precision Output Voltage: 2.5% (25°C) accuracy.
Features
●
2.5% output accuracy (25°C)
●
Low dropout voltage: 450mV @ 1A (typ, 5V out)
●
Wide input voltage range (2.7V to 10V)
●
Precision (trimmed) bandgap reference
●
Guaranteed specs for -40°C to +125°C
●
1µA off-state quiescent current
●
Thermal overload protection
●
Foldback current limiting
●
T0-252, SOT-223 and 6-Lead LLP packages
●
Enable pin (LP38692)
Applications
●
Hard Disk Drives
●
Notebook Computers
●
Battery Powered Devices
●
Portable Instrumentation
Typical Application Circuits
20126601
20126602
Note: * Minimum value required for stability.
**LLP package devices only.
PRODUCTION DATA information is current as of
publication date. Products conform to specifications per
the terms of the Texas Instruments standard warranty.
Production processing does not necessarily include
testing of all parameters. 201266 SNVS322I Copyright © 1999-2012, Texas Instruments Incorporated