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Renesas Electronics Components Datasheet

RAA230407 Datasheet

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

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RAA230407 pdf
RAA23040x
3-ch Step-Down Switching Regulator + 1-ch LDO
Datasheet
R18DS0004EJ0102
Rev.1.02
Jul.09, 2013
Description
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
Package
32-pin VQFN
32-pin TQFP
Packing
Embossed taping. 4,000pcs/reel
Tray. 1,250pcs/Inner box
R18DS0004EJ0102 Rev. 1.02
Jul.09, 2013
Page 1 of 26


Renesas Electronics Components Datasheet

RAA230407 Datasheet

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

No Preview Available !

RAA230407 pdf
Product Lineup Table
The following 9 products are developed based on output voltage.
ch RAA230401 RAA230402 RAA230403 RAA230404 RAA230405 RAA230406 RAA230407 RAA230408 RAA230409
1 1.8 V
2.5 V
3.0 V
3.3 V
1.8 V
2.5 V
3.0 V
3.3 V
Adjustable
2
3 3.3 V
Adjustable
4 Output voltage is selectable. 1.2 V preset voltage by internal resistor or adjustable by external resistor.
Note:
ch1, ch2: RAA230401 to RAA230408 output preset voltage by internal resistor. RAA230409 outputs adjustable
voltage by external resistor.
ch3: RAA230401 to RAA230404 output preset voltage by internal resistor. RAA230405 to RAA230409 output
adjustable voltage by external resistor.
ch4: All products have switchable output voltage between 1.2 V preset voltage by internal resistor and adjustable
voltage by external resistor.
Constitution Example
Input Voltage: 2.5 V to 5.5 V
ch Type
Power MOSFET
1 Synchronous rectification Integrated
type step-down circuit
(Current mode)
2 LDO
3 Synchronous rectification Integrated
type step-down circuit
(Current mode)
4 Synchronous rectification Integrated
type step-down circuit
(Current mode)
Output Voltage
0.9 V to VIN × 0.8 V
0.9 V to VIN × 0.8 V
0.9 V to VIN × 0.8 V
0.9 V to VIN × 0.8 V
Maximum Output
Current Example
500 mA
100 mA
1500 mA
1500 mA
R18DS0004EJ0102 Rev. 1.02
Jul.09, 2013
Page 2 of 26


Part Number RAA230407
Description 3-ch Step-Down Switching Regulator + 1-ch LDO
Maker Renesas
Total Page 29 Pages
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