RAA23021X中文资料瑞萨数据手册PDF规格书

特性 Features

• DC/DC converter (ch1)

⎯ Synchronous rectification type step-down circuit

⎯ Integrated power MOSFETs

⎯ Preset output voltage (There are also products that have adjustable output voltage using external resistors.)

⎯ Internal phase compensator

⎯ Switching frequency: 1 MHz (fixed)

⎯ Internal timer-latch-type short-circuit protector (fixed delay time)

⎯ 100 duty cycle operation

• LDO (ch2)

⎯ 500mA

⎯ Internal over current protector (foldback-current limiting)

⎯ Ultra low-power save mode (25uA typical)

• Common Features

⎯ Internal rise up sequencer

⎯ Internal digital soft-start function (2 ms fixed soft-start time)

⎯ Internal discharge circuit

⎯ Power good function

⎯ Internal timer-latch-type thermal shutdown circuit (shutdown temperature: 150°C or higher)

⎯ Internal recovery-type under voltage lockout circuit