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LP38693SD-5.0 Datasheet

  • LP38693SD-5.0

  • 500mA Low Dropout CMOS Linear Regulators Stable with Ceramic...

  • 791.30KB

  • 15頁

  • NSC

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LP38691/LP38693 500mA Low Dropout CMOS Linear Regulators
Stable with Ceramic Output Capacitors
PRELIMINARY
January 2005
LP38691/LP38693
500mA Low Dropout CMOS Linear Regulators
Stable with Ceramic Output Capacitors
General Description
The LP38691/3 low dropout CMOS linear regulators provide
tight output tolerance (2.0% typical), extremely low dropout
voltage (250 mV
@
500mA load current, V
OUT
= 5V), and
excellent AC performance utilizing ultra low ESR ceramic
output capacitors.
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 碌A(chǔ) regardless of load current, input
voltage, or operating temperature.
Dropout Voltage:
250 mV (typ)
@
500mA (typ. 5V out).
Ground Pin Current:
55 碌A(chǔ) (typ) at full load.
Precision Output Voltage:
2.0% (25藲C) accuracy.
Features
n
n
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2.0% output accuracy (25藲C)
Low dropout voltage: 250 mV
@
500mA (typ, 5V out)
Wide input voltage range (2.7V to 10V)
Precision (trimmed) bandgap reference
Guaranteed specs for -40藲C to +125藲C
1碌A(chǔ) off-state quiescent current
Thermal overload protection
Foldback current limiting
T0-252, SOT-223 and 6-Lead LLP packages
Enable pin (LP38693)
Applications
n
n
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Hard Disk Drives
Notebook Computers
Battery Powered Devices
Portable Instrumentation
Typical Application Circuits
20126501
20126502
Note:
* Minimum value required for stability.
**LLP package devices only.
漏 2005 National Semiconductor Corporation
DS201265
www.national.com

LP38693SD-5.0 產(chǎn)品屬性

  • National Semiconductor (TI)

  • 10 V

  • 5 V

  • 0.1 V at 100 mA, 0.45 V at 500 mA

  • 0.5 A

  • 1.8 % / A

  • 1

  • Fixed

  • + 125 C

  • SMD/SMT

  • LLP EP

  • 0.03 % / V

  • - 40 C

  • Reel

  • 1000

  • +/- 2 %

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