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LP2967IBP-2533 Datasheet

  • LP2967IBP-2533

  • Dual Micropower 150 mA Low-Dropout Regulator in micro SMD Pa...

  • 17頁

  • NSC

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LP2967 Dual Micropower 150 mA Low-Dropout Regulator in micro SMD Package
April 2003
LP2967
Dual Micropower 150 mA Low-Dropout Regulator in
micro SMD Package
General Description
The LP2967 is a 150 mA, dual fixed-output voltage regulator
designed to provide ultra low-dropout and low noise in bat-
tery powered applications.
Using an optimized VIP (Vertically Integrated PNP) process,
the LP2967 delivers unequalled performance in all specifi-
cations critical to battery powered designs:
Dropout Voltage:
Typically 240 mV at 150 mA load, and
6 mV at 1 mA load for each output.
Ground Pin Current:
Typically 1 mA at 150 mA load, and
200 碌A at 1 mA load for each output.
Enhanced Stability:
The LP2967 is stable with output ca-
pacitor ESR as low as 5 m鈩? which allows the use of ceramic
capacitors on the output.
Sleep Mode:
Less than 2 碌A quiescent current when SD
pins are pulled low.
Smallest Possible Size:
micro SMD package uses absolute
minimum board space.
Precision Output:
1.25% tolerance.
Low Noise:
By adding a 100 nF bypass capacitor, output
noise can be reduced to 30 碌V (typical).
Multiple voltage options, from 1.8V to 5.0V, are available.
Consult factory for custom voltages.
Features
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Ultra low drop-out voltage
Guaranteed 150mA output current, 300 mA peak
Smallest possible size (micro SMD package)
Requires minimum external components
Stable with 2.2 碌F tantalum or ceramic capacitor
Output voltage accuracy
鹵
1%
<
2 碌A quiescent current when shut down
Wide supply voltage range (16V max.)
Low Z
OUT
: 0.3鈩?typical (10 Hz to 1 MHz)
Over temperature/over current protection
鈭?0藲C to +125藲C junction temperature range
Custom voltages available
Applications
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Cellular Phone
Palmtop/Laptop Computer
Personal Digital Assistance (PDA)
Camcorder, Personal Stereo and Camera
Block Diagram
10114201
漏 2003 National Semiconductor Corporation
DS101142
www.national.com

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