Datasheet
RAA23040x
3-ch Step-Down Switching Regulator + 1-ch LDO
Description
R18DS0004EJ0102 Rev.1.02 Jul.09, 2013
T...
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...