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参数资料
型号： TPS51427ARHBRG4
厂商： TEXAS INSTRUMENTS INC
元件分类： 稳压器
英文描述： DUAL SWITCHING CONTROLLER, PQCC32
封装： 5 X 5 MM, GREEN, PLASTIC, QFN-32
文件页数： 20/42页
文件大小： 2131K
代理商： TPS51427ARHBRG4
APPLICATION INFORMATION
Table 4. List of Materials
TPS51427A
www.ti.com .................................................................................................................................................. SLUS843B – MAY 2008 – REVISED SEPTEMBER 2008
COMPONENTS
CONFIGURATION NO. 1
CONFIGURATION NO. 2
CONFIGURATION NO. 3
400 kHz/300 kHz Channel1: 5
400 kHz/500 kHz Channel1:
400kHz/500kHz Channel1:
V/8 A (fixed) Channel2: 3.3 V/10
1.5V/10A (fixed) Channel2: 1.05
1.8V/10A (adj) Channel2:
A (fixed)
V/15 A(fixed)
1.1V/15A (adj)
Input voltage
8 V
≤ VIN ≤ 22 V
4 x 10
F, 25 V
4 x 10
F, 25 V
4 x 10
F, 25 V
Input MLCC capacitors
Murata
GRM31CR61E106KA12L
Channel1
1 x 330
F, 6 V, 25 m, Sanyo,
2 x 330
F, 2.5 V, 12 m,
2 x 330
F, 2.5 V, 12 m,
Output capacitor
6TPE330ML
Sanyo, 2R5TPE330MC
Sumida, 4.3
H,
Sumida, 2.2
H,
Sumida, 2.2
H,
Output inductor
CEP125NP-4R3M-U, 11.4 m
CEP125NP-2R2M-U, 5.4 m
CEP125NP-2R2M-U, 5.4 m
International Rectifier, IRF7807V, International Rectifier, IRF7807V, International Rectifier, IRF7807V,
High-side MOSFET
30 V, 8.3 A, 0.017
30V, 8.3A, 0.017
30V, 8.3A, 0.017
International Rectifier,
International Rectifier, IRF7832,
Low-side MOSFET
IRF7811AV, 30 V, 10.8 A, 0.011
30V, 20A, 0.004
30V, 20A, 0.004
ROCL
267 k
for OCL of 10 A to 14 A
110 k
for OCL of 12 A to 18 A
110 k
for OCL of 12 A to 18 A
RUPPER_DIV
39.2 k
, 1%
Tie VFB1 to GND
Tie VFB1 to V5FILT
RLOWER_DIV
24.9 k
, 1%
Channel2
1 x 330
F, 4 V, 18 m Sanyo,
2 x 470
F, 2.5 V, 9 m, Sanyo,
2 x 470
F, 2.5 V, 9 m, Sanyo,
Output capacitor
4TPE330MI
2R5TPE470M9
Sumida, 3.2
H, 8.0 m,
Vishay, 1
H, 3 m,
Vishay, 1
H, 3 m,
Output inductor
CEP125NP-3R2M-U
IHLP5050CE
International Rectifier, IRF7807V, International Rectifier, IRF7821,
International Rectifier, IRF7821,
High-side MOSFET
30 V, 8.3 A, 0.017
30 V, 13 A, 0.009
30 V, 13 A, 0.009
International Rectifier, IRF7832,
Low-side MOSFET
30 V, 20 A, 0.004
30 V, 20 A, 0.004
30 V, 20 A, 0.004
ROCL
110 k
for OCL of 12 A to 18 A
169 k
for OCL of 18 A to 26 A
169 k
for OCL of 18 A to 26 A
RUPPER_DIV
44.2 k
, 1%
Tie REFIN2 to V5FILT
Tie REFIN2 to VREF3
RLOWER_DIV
54.9 k
Copyright 2008, Texas Instruments Incorporated
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Product Folder Link(s): TPS51427A
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