LP38692SD-1.8/NOPB National Semiconductor, LP38692SD-1.8/NOPB Datasheet - Page 2

• Manufacturer Part Number: LP38692SD-1.8/NOPB
• Description: IC REG LDO 1A 1.8V 6-LLP
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LP38692SD-1.8/NOPB

• Regulator Topology: Positive Fixed
• Voltage - Output: 1.8V
• Voltage - Input: Up to 10V
• Voltage - Dropout (typical): 0.95V @ 1A
• Number Of Regulators: 1
• Current - Output: 1A
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 6-LLP
• For Use With: LP38692EVAL - BOARD EVALUATION LP38692
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Other names: LP38692SD-1.8; LP38692SD-1.8TR

© 2010 National Semiconductor Corporation
1A Low Dropout CMOS Linear Regulators
Stable 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
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.
Typical Application Circuits
Note: * Minimum value required for stability.
**LLP package devices only.
OUT
= 5V), and excellent
201266
LP38690
LP38692
Features
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Applications
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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)
Hard Disk Drives
Notebook Computers
Battery Powered Devices
Portable Instrumentation
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December 14, 2010
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