APW7153 Datasheet | ANPEC

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: 300k Hz 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 (Ro HS pliant) 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 pact system solution external ponents and PCB area. Simplified Application Circuit - LCD Minitor/TV - Set-Top Box - DSL, Switch HUB - Notebook puter - Portable Instrument VDD PVDD APW7153/A/B VOUT Pin Configuration SHDN/RT 1 GND 2 LX 3 PGND 4 9 Expose Pad 8 P SHDN/RT 1 7 FB 6 VDD GND 2 LX 3 LX...