
Global Mixed-mode Technology Inc
General Description
The G5320 is a flexible asynchronous buck controller with a built in 200mA driver for P-channel FETs. The input voltage is up to 27V. The G5320 operates with voltage-mode feedback and has feed-forward input-voltage compensation that responds instantly to input voltage change. The internal 700mV reference is trimmed to 1%, giving accurate output voltages. Clock frequency, soft-start, and overcurrent limit are each easily programmed by a single, external component. Over voltage protection (OVP) can be adjusted by setting the external resistors. Input under-voltage lockout is implemented. The G5320 is available in 10-pin MSOP exposed pad package.
FEATUREs
● Input Voltage: 4.5V to 27V
● Output Voltage (700mV to 90% VIN)
● 200mA Internal P-Channel FET Driver
● Voltage Feed-Forward Compensation
● Undervoltage Lockout
● Hiccup Overcurrent Fault Recovery
● Programmable Fixed Frequency (35~500KHz) Operation
● Programmable Short Circuit Protection
● 700 mV 1% Reference Voltage
● Programmable Closed Loop Soft Start
● Disable Function Available
● Programmable Over-Voltage Protection
● MSOP-10 with Exposed Pad Package Available
APPLICATIONs
● Telecom
● DSL/Cable Modems
● Scanners
● Power Applications