UPD168807中文资料瑞萨数据手册PDF规格书

特性 Features

• Uses a synchronous rectification type step-down circuit (ch1, ch2)

• Uses a synchronous rectification type step-up/down circuit (ch3)

• Uses a switching circuit to switch between step-down (using synchronous rectification) and inverting (using asynchronous rectification) (ch4)

• Incorporates a power MOSFET (ch1 to ch3)

• Incorporates a phase compensator (ch1 to ch4)

• Operating frequency: 300 kHz to 1500 kHz

• Can use an external clock (to improve the oscillating frequency accuracy)

• Incorporates a timer-latch-type short-circuit protector

• Incorporates a timer-latch-type overheat protector (shutdown temperature: 150ºC or higher)

• Incorporates a recovery-type undervoltage lockout circuit

• Housed in a 48-pin VQFN package