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LP3988IMFX-2.5 Datasheet

  • LP3988IMFX-2.5

  • Micropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator W...

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  • NSC

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LP3988 Micropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator With Power Good
August 2004
LP3988
Micropower, 150mA Ultra Low-Dropout CMOS Voltage
Regulator With Power Good
General Description
The LP3988 is a 150mA low dropout regulator designed
specially to meet requirements of Portable battery-
applications. The LP3988 is designed to work with a space
saving, small 1碌F ceramic capacitor. The LP3988 features
an Error Flag output that indicates a faulty output condition.
The LP3988鈥檚 performance is optimized for battery powered
systems to deliver low noise, extremely low dropout voltage
and low quiescent current. Regulator ground current in-
creases only slightly in dropout, further prolonging the bat-
tery life.
Power supply rejection is better than 60 dB at low frequen-
cies and starts to roll off at 10 kHz. High power supply
rejection is maintained down to lower input voltage levels
common to battery operated circuits.
The device is ideal for mobile phone and similar battery
powered wireless applications. It provides up to 150 mA,
from a 2.5V to 6V input, consuming less than 1 碌A(chǔ) in disable
mode and has fast turn-on time less than 200碌s.
The LP3988 is available 5 pin SOT-23 package and 5 bump
thin micro SMD package. Performance is specified for 鈭?0藲C
to +125藲C temperature range and is available in 1.85, 2.5,
2.6, 2.85, 3.0 and 3.3V output voltages.
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40dB PSRR at 10kHz
鈮?
碌A(chǔ) quiescent current when shut down
Fast Turn-On time: 100 碌s (typ.)
80 mV typ dropout with 150mA load
鈭?0 to +125藲C junction temperature range for operation
1.85V, 2.5V, 2.6V, 2.85V, 3.0V, and 3.3V
Features
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5 bump thin micro SMD package
SOT-23-5 package
Power-good flag output
Logic controlled enable
Stable with ceramic and high quality tantalum capacitors
Fast turn-on
Thermal shutdown and short-circuit current limit
Applications
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CDMA cellular handsets
Wideband CDMA cellular handsets
GSM cellular handsets
Portable information appliances
Tiny 3.3V
鹵
5% to 2.85V, 150mA converter
Key Specifications
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2.5 to 6.0V input range
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150mA guaranteed output
Typical Application Circuit
20020502
漏 2004 National Semiconductor Corporation
DS200205
www.national.com

LP3988IMFX-2.5 產(chǎn)品屬性

  • National Semiconductor (TI)

  • 6 V

  • 2.5 V

  • 0.005 V at 1 mA, 0.115 V at 150 mA

  • 0.15 A

  • 1

  • Fixed

  • + 125 C

  • SMD/SMT

  • SOT-23

  • 250 mW

  • - 40 C

  • Reel

  • 3000

  • +/- 2 %

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