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LP3982IMMX-2.5 Datasheet

  • LP3982IMMX-2.5

  • Micropower, Ultra Low-Dropout, Low-Noise, 300mA CMOS Regulat...

  • 13頁

  • NSC

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LP3982 Micropower, Ultra Low-Dropout, Low-Noise, 300mA CMOS Regulator
July 2002
LP3982
Micropower, Ultra Low-Dropout, Low-Noise, 300mA
CMOS Regulator
General Description
The LP3982 low-dropout (LDO) CMOS linear regulator is
available in 1.8V, 2.5V, 2.77V, 2.82V, 3.0V, 3.3V, and adjust-
able versions. They deliver 300mA of output current. Pack-
aged in an 8-Pin MSOP, the LP3982 is pin and package
compatible with Maxim鈥檚 MAX8860. The LM3982 is also
available in the small footprint LLP package.
The LP3982 suits battery powered applications because of
its shutdown mode (1nA typ), low quiescent current (90碌A(chǔ)
typ), and LDO voltage (120mV typ). The low dropout voltage
allows for more utilization of a battery鈥檚 available energy by
operating closer to its end-of-life voltage. The LP3982鈥檚
PMOS output transistor consumes relatively no drive current
compared to PNP LDO regulators.
This PMOS regulator is stable with small ceramic capacitive
loads (2.2碌F typ).
These devices also include regulation fault detection, a
bandgap voltage reference, constant current limiting and
thermal overload protection.
Features
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MAX8860 pin, package and spec. compatible
LLP space saving package
300mA guaranteed output current
120mV typical dropout
@
300mA
90碌A(chǔ) typical quiescent current
1nA typical shutdown mode
60dB typical PSRR
2.5V to 6V input range
120碌s typical turn-on time
Stable with small ceramic output capacitors
37碌V RMS output voltage noise (10Hz to 100kHz)
Over temperature/over current protection
鹵
2% output voltage tolerance
Applications
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Wireless handsets
DSP core power
Battery powered electronics
Portable information appliances
Application Circuit
20036931
漏 2002 National Semiconductor Corporation
DS200369
www.national.com

LP3982IMMX-2.5 產(chǎn)品屬性

  • National Semiconductor (TI)

  • 6 V

  • 2.5 V

  • 0.22 V at 200 mA

  • 0.3 A

  • 0.002 % / mA

  • 1

  • Fixed

  • + 85 C

  • SMD/SMT

  • MSOP

  • 0.01 % / V

  • - 40 C

  • Reel

  • 3500

  • +/- 2 %

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