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APW7153B

ANPEC
Part Number APW7153B
Manufacturer ANPEC
Description Synchronous Buck Converter
Published Aug 14, 2020
Detailed Description APW7153/A/B 3A 5V 2MHz Synchronous Buck Converter Features • High Efficiency up to 95% - PFM/PWM Mode Operation • Adju...
Datasheet PDF File APW7153B PDF File

APW7153B
APW7153B

Overview
APW7153/A/B 3A 5V 2MHz Synchronous Buck Converter Features • High Efficiency up to 95% - PFM/PWM Mode Operation • Adjustable Output Voltage from 0.
8V to VIN • Integrated 110mΩ High/Low Side MOSFET • Programmable Switching Frequency: 300kHz to 2MHz • Low Dropout Operation: 100% Duty Cycle • Stable with Low ESR Capacitors • Power-On-Reset Detection on VDD and PVDD • Integrate Soft-Start and Soft-Off • Over-Temperature Protection • Over-Voltage Protection • Under-Voltage Protection • High/Low Side Current-Limit • Power Good Indicator (APW7153A/B) • Enable/Shutdown Function • Small TDFN3x3-10 and SOP-8P Packages • Lead Free and Green Devices Available (RoHS Compliant) Applications General Description APW7153/A/B is a 3A synchronous buck converter with integrated 110mΩ power MOSFETs.
The APW7153/A/B is designed with a current-mode control scheme; it can convert wide input voltage of 2.
6V to 5.
5V to the output voltage adjustable from 0.
8V to 5.
5V to provide excellent output voltage regulation.
The APW7153/A/B is equipped with an PFM/PWM mode operation.
At light load, the IC operates in the PFM mode to reduce the switching losses.
At heavy load, the IC works in PWM.
At PWM mode, the switching frequency is set by the external resistor.
The APW7153/A/B is also equipped with Power-on-reset, soft-start, soft-stop, and whole protections (under-voltage, over-voltage, over-temperature and current-limit) into a single package.
This device, available TDFN3x3-10 and SOP-8P provides a very compact system solution external components and PCB area.
Simplified Application Circuit VIN • LCD Minitor/TV • Set-Top Box • DSL, Switch HUB • Notebook Computer • Portable Instrument VDD PVDD APW7153/A/B VOUT Pin Configuration APW7153 APW7153 SHDN/RT 1 GND 2 LX 3 PGND 4 9 Expose Pad 8 COMP SHDN/RT 1 7 FB 6 VDD GND 2 LX 3 LX 4 5 PVDD PGND 5 11 Expose Pad 10 COMP 9 FB 8 VDD 7 PVDD 6 PVDD SOP-8P (Top View) TDFN3X3-10 (Top View) APW7153A APW7153B EN/RT 1 GND 2 LX 3 LX 4 PGND 5 1...


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