Global Mixed-mode Technology Inc.
300KHz, 3A Buck Converter
G5503
Features
Voltage Mode Asynchronous PWM Control 3...
Global Mixed-mode Technology Inc.
300KHz, 3A Buck Converter
G5503
Features
Voltage Mode Asynchronous PWM Control 3.3V, 5V and Adjustable Output Version Operation Voltage can be up to 20V Adjustable Version Output Voltage Range, 0.8V
to 16V±2% 300KHz Fixed Frequency Internal Oscillator Built-in Switching
Transistor on Chip 3A Output Load Current Thermal Shutdown and Current Limit Protec-
tion ON/OFF Shutdown Control Iq of Low Power Standby Mode 1µA Available in SOP-8 Packages
Applications
Simple high-efficiency step-down
regulator On-card switching
regulators Positive to negative converter
General Description
The G5503 is a voltage-mode buck PWM converter capable of driving up to 3A loads over a wide input supply range. High efficiency is obtained through the use of a low RDS(ON) P-channel power switch. The internal compensation makes feedback control have excellent line and load regulation characteristics without external designs.
It uses ...