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PDF RAA230402 Data sheet ( Hoja de datos )
| Número de pieza | RAA230402 | |
| Descripción | 3-ch Step-Down Switching Regulator + 1-ch LDO | |
| Fabricantes | Renesas | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de RAA230402 (archivo pdf) en la parte inferior de esta página. Total 29 Páginas | ||
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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
1 page  
Pin Configuration
32-pin VQFN
24 23 22 21 20 19 18 17
SHDNB4 25
SHDNB3 26
SAVE 27
SS 28
RT 29
SHDNB2 30
SHDNB1 31
SHDNB0 32
12345678
16 TEST1
15 VREG
14 TEST2
13 AGND
12 AVDD
11 VREF
10 OUT2
9 VPIN2
(Top view)
32-pin TQFP
24 23 22 21 20 19 18 17
SHBND4 25
SHBND3 26
SAVE 27
SS 28
RT 29
SHBND2 30
SHBND1 31
SHBND0 32
Exposed PAD
123456 78
16 TEST1
15 VREG
14 TEST2
13 AGND
12 AVDD
11 VREF
10 OUT2
9 VPIN2
(Top view)
R18DS0004EJ0102 Rev. 1.02
Jul.09, 2013
Page 5 of 26
5 Page 
Typical Performance Characteristics
(Unless otherwise specified, TA = 25°C, AVDD = VPIN1 to VPIN4 = 5.0 V, fOSC = 2 MHz)
Efficiency vs. Output Current
ch1 Efficiency VOUT1 = 3.3V
2MHz
ch3 Efficiency VOUT3 = 3.3V
2MHz
SAVE(0.3MHz)
SAVE(0.3MHz)
ch3 Efficiency VOUT3 = 2.5V
2MHz
SAVE(0.3MHz)
ch4 Efficiency VOUT4 = 1.2V
2MHz
SAVE(0.3MHz)
R18DS0004EJ0102 Rev. 1.02
Jul.09, 2013
Page 11 of 26
11 Page | ||
| Páginas | Total 29 Páginas | |
| PDF Descargar | [ Datasheet RAA230402.PDF ] | |
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