RAA230404

Datasheet RAA23040x 3-ch Step-Down Switching Regulator + 1-ch LDO Description R18DS0004EJ0102 Rev.1.02 Jul.09, 2013 The RAA23040x is a power supply IC that has 3-ch step-down Switching Regulator containing power MOSFETs and 1-ch LDO. Features Switching Regulator (ch1, ch3, ch4)  Synchronous rectification type step-down circuit  Integrated power MOSFETs  Internal phase compensator  Power good function (ch1)  Low power mode (ch1, ch3 and ch4 operate at low frequency and reduce the power consumption of the IC.)  Switching frequency: 1.3 MHz to 2 MHz (variable)  Internal timer-latch-type short-circuit protector LDO (ch2)  Internal over current protector (foldback-current limiting) Common part  Independent On/Off control for each channel  Internal digital soft-start function (adjustable soft-start time)  Internal discharge circuit  Internal timer-latch-type thermal shutdown circuit (shutdown temperature: 150°C or higher)  Internal recovery-type under voltage lockout circuit PKG and Packing Part No. RAA23040xGNP RAA23040xGFT 32-pin VQFN 32-pin TQFP Package Packing Embossed taping. 4,000pcs/reel Tray. 1,250pcs/Inner box R18DS0004EJ0102 Rev. 1.02 Jul.09, 2013 Page 1 of 26 Product Lineup Table The following 9 products are developed based on output voltage. ch 1 2 3 4 3.3 V Adjustable RAA230401 1.8 V RAA230402 2.5 V RAA230403 3.0 V RAA230404 3.3 V RAA230405 1.8 V RAA230406 2.5 V RAA230407 3.0 V RAA230408 3.3 V RAA230409 Adjustable Output voltage is selectabl...