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APW8802

ANPEC
Part Number APW8802
Manufacturer ANPEC
Description High Input Voltage 8A PWM DC/DC Converter
Published Dec 22, 2013
Detailed Description APW8802 High Input Voltage 8A PWM DC/DC Converter Features • • • • • • • • • • • • • • • • • Operates from An Input Bat...
Datasheet PDF File APW8802 PDF File

APW8802
APW8802


Overview
APW8802 High Input Voltage 8A PWM DC/DC Converter Features • • • • • • • • • • • • • • • • • Operates from An Input Battery Voltage Range of +3V to +25V ±1.
6% 0.
75V Reference - Over Line, Load Regulation, and Operating Temp.
High Efficiency all Over 90% at VOUT=1V, VIN=19V Condition Power-On-Reset Monitoring on PVCC and VCC Pins Excellent Line and Load Transient Responses Integrated 12mΩ @ VCC=5V N-Channel MOSFET For High Side Integrated 12mΩ @ VCC=5V N-Channel MOSFET For Low Side Programmable PWM Frequency from 100kHz to 500kHz Built-in 1.
2ms Digital Soft-Start & Soft-Stop Built-in COT Mode Control for Fast Response and MLCC Supports Power Good Monitoring 70% Under-Voltage Protection 125% Over-Voltage Protection Adjustable Current-Limit Protection - Using Built-in Low-Side MOSFET’ s RDS(ON) Over-Temperature Protection TQFN5x6-28 (Power PAK) Package Lead Free and Green Devices Available (RoHS Compliant) General Description The APW8802 is a 8A, synchronous, step-down converter with integrated 12mΩ N-channel High-Side MOSFET and 12m Ω Low-Side MOSFET.
The APW8802 steps down high voltage to generate low-voltage chipset or RAM supplies in notebook computers.
The APW8802 provides excellent transient response and accurate DC voltage output in either PFM or PWM Mode.
In Pulse Frequency Mode (PFM), the APW8802 provides very high efficiency over light to heavy loads with loadingmodulated switching frequencies.
In PWM Mode, the converter works nearly at constant frequency for low-noise requirements.
The APW8802 is equipped with accurate current-limit, output under-voltage, and output over-voltage protections, perfect for NB applications.
A Power-On-Reset function monitors the voltage on VPVCC and VCC to prevent wrong operation during power-on.
The APW8802 has a 1.
2ms digital soft-start and built-in an integrated output discharge device for soft-stop.
An internal integrated soft-start ramps up the output voltage with programmable slew rate to reduce the start-up current.
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