Renesas RAA230405

The RAA23040x is a power supply IC that has 3-ch step-down Switching Regulator containing power MOSFETs and 1-ch LDO.

Switching Regulator (ch1, ch3, ch4)
¾ Synchronous rectification type step-down circuit
¾ Integrated power MOSFETs
¾ Internal phase compensator
¾ Power good function (ch1)
¾ Low power mode
(ch1, ch3 and ch4 operate at low frequency and reduce the power consumption of the IC.)
¾ Switching frequency: 1.3 MHz to 2 MHz (variable)
¾ Internal timer-latch-type short-circuit protector
- LDO (ch2)
¾ Internal over current protector (foldback-current limiting)
- Common part
¾ Independent On/Off control for each channel
¾ Internal digital soft-start function (adjustable soft-start time)
¾ Internal discharge circuit
¾ Internal timer-latch-type thermal shutdown circuit (shutdown temperature: 150°C or higher)
¾ Internal recovery-type under voltage lockout circuit

3-ch Step-Down Switching Regulator + 1-ch LDO