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APL5501

Anpec Electronics
Part Number APL5501
Manufacturer Anpec Electronics
Description Low Dropout 500mA Fixed Voltage Regulator
Published Jun 23, 2008
Detailed Description APL5501/2/3 Low IQ, Low Dropout 500mA Fixed Voltage Regulator Features • Low Noise : 50µVRMS (100Hz to 100kHz) • Low Qu...
Datasheet PDF File APL5501 PDF File

APL5501
APL5501

Overview
APL5501/2/3 Low IQ, Low Dropout 500mA Fixed Voltage Regulator Features • Low Noise : 50µVRMS (100Hz to 100kHz) • Low Quiescent Current : 50µA (No load) • Low Dropout Voltage : 170mV (@500mA) • Very low Shutdown Current : < 0.
5uA • Fixed Output Voltage : 1.
3V ~ 3.
4V www.
DataSheet4U.
com • Stable with 4.
7uF Output Capacitor • Stable with Aluminum, Tantalum or Ceramic Capacitors • Reverse Current Protection • No Protection Diodes Needed • • • • • • Built in Thermal Protection Built in Current Limit Protection Controlled Short Circuit Current : 150mA Fast Transient Response Short Setting Time SOT-23-5, SOT-89, SOT-89-5, SOT-223, SO-8, TO-252 and TO-252-5 Packages Lead Free Available (RoHS Compliant) SOT-89 (Top View) SOT-89-5 (Top View) TAB is GND Design with an internal P-channel MOSFET pass transistor, the APL5501/2/3 maintains a low supply current, independent of the load current and dropout voltage.
Other features include reverse current protection, thermal-shutdown protection, current limit protection to ensure specified output current and controlled short-circuit current.
The APL5501/2/3 regulator comes in a miniature SOT-23-5, SOT-89, SOT89-5, SOT-223, SO-8, TO-252 and TO-252-5 packages.
Pin Configuration APL5501 BP GND SHDN 5 1 2 3 4 2 3 1 V IN GND VOUT V OUT GND V IN • Applications • • • IN 1 2 3 4 8 7 6 5 OUT GND GND GND SHDN GND BYP SHDN 3 4 BP 2 Notebook Computer PDA or Portable Equipments Noise-Sensitive Instrumentation Systems V IN 1 5 V OUT GND General Description The APL5501/2/3 is micropower, low noise, low dropout linear regulator.
Operate from 2.
7V to 6V input voltage and deliver up to 500mA.
Typical output noise is just 50µVRMS with the addition of an external 0.
1µF bypass capacitor in BP pin and typical dropout voltage is only 170mV at 500mA loading .
Designed for use in battery-powered system, the low 50uA quiescent current makes it an ideal choice.
SO-8 (Top View) GND SOT-23-5 (Top View) VOUT BP GND SHDN VIN TAB is GND 1 2...


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