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APE8901MP Datasheet(PDF) 1 Page - Advanced Power Electronics Corp. |
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APE8901MP Datasheet(HTML) 1 Page - Advanced Power Electronics Corp. |
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1 / 8 page  Advanced Power Electronics Corp. 1A ULTRA LOW DROPOUT LINEAR REGULATOR FEATURES DESCRIPTION Ultra Low Dropout - 0.2V(typical) at 1A Output Current 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 and DFN 2x2 Pb-Free Packages. TYPICAL APPLICATION CIRCUIT 1. Using an Output Capacitor with ESR > 20mΩ 2. Using an MLCC as the Output Capacitor Data and specifications subject to change without notice 201010203 APE8901 1 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 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. C1 1uF R1 1K Vout=1.2V/1A VIN=1.5V R3 1K VCNTL=5V C4 220uF C5 0.1u U1 APE8901 VCNTL FB VOUT GND NC EN POK VIN C2 100uF C3 0.1uF C6 12~48nF R2 2K OFF ON VIN=1.5V R3 1K Vout=1.2V/1A U2 APE8901 VCNTL FB VOUT GND NC EN POK VIN C6 56pF C5 22u C1 1uF C3 22uF VCNTL=5V R2 78K R1 39K OFF ON VFB =0.8V VOUT=VFB x (1+R1/R2) |
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