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APE8901

Advanced Power Electronics
Part Number APE8901
Manufacturer Advanced Power Electronics
Description 1A ULTRA LOW DROPOUT LINEAR REGULATOR
Published May 23, 2014
Detailed Description Advanced Power Electronics Corp. FEATURES Low ESR Output Capacitor (Multi-layer Chip Capacitors (MLCC)) Applicable 0.8V ...
Datasheet PDF File APE8901 PDF File

APE8901
APE8901

Overview
Advanced Power Electronics Corp.
FEATURES Low ESR Output Capacitor (Multi-layer Chip Capacitors (MLCC)) Applicable 0.
8V Reference Voltage Fast Transient Response Adjustable Output Voltage by External Resistors Power-On-Reset Monitoring on Both VCNTL and VIN Pins Internal Soft-Start Under-Voltage Protection Current-Limit and Thermal Shutdown Protection Power-OK Output with a Delay Time ESOP-8, SOT-26 and DFN 2x2 Pb-Free Packages.
APE8901 DESCRIPTION The APE8901 is a 1A ultra low dropout linear regulator.
This product is specifically designed to provide well supply voltage for front-side-bus termination on motherboards and NB applications.
The IC needs two supply voltages, a control voltage for the circuitry and a main supply voltage for power conversion, to reduce power dissipation and provide extremely low dropout.
The APE8901 integrates many functions.
A Power-On-Reset (POR) circuit monitors both supply voltages to prevent wrong operations.
A thermal shutdown and current limit functions protect the device against thermal and current over-loads.
A POK indicates the output status with time delay which is set internally.
It can control other converter for power sequence.
The APE8901 can be enabled by other power system.
Pulling and holding the EN pin below 0.
3V shuts off the output.
The APE8901 is available in ESOP-8, SOT-26 and DFN 2x2 packages.
That features small size as SOP-8 with an Exposed Pad to reduce the junction-to-case resistance, being applicable in 2~3W applications.
1A ULTRA LOW DROPOUT LINEAR REGULATOR Ultra Low Dropout - 0.
2V(typical) at 1A Output Current TYPICAL APPLICATION CIRCUIT 1.
Using an Output Capacitor with ESR > 20mΩ R3 1K VCNTL=5V U1 VCNTL POK EN VIN VIN=1.
5V C2 C3 0.
1uF NC VOUT ON C1 1uF 100uF OFF GND FB Vout=1.
2V/1A APE8901 R1 1K C6 12~48nF C4 220uF C5 0.
1u R2 2K 2.
Using an MLCC as the Output Capacitor R3 1K VCNTL=5V U2 VCNTL POK EN C1 1uF VIN C3 VIN=1.
5V 22uF NC VOUT FB R1 39K ON OFF GND APE8901 Vout=1.
2V/1A C6 5...


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