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参数资料
| 型号： | TPS5103IDBG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 3 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封装： | GREEN, PLASTIC, SSOP-20 |
| 文件页数： | 29/40页 |
| 文件大小： | 1225K |
| 代理商： | TPS5103IDBG4 |
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TPS5103
MULTIPLE MODE SYNCHRONOUS DC/DC CONTROLLER
SLVS240A – SEPTEMBER 1999 – REVISED MAY 2001
35
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
High-current applications are described in Table 8. The values are recommendations based on actual test
circuits. Many variations are possible based on the requirements of the user. Performance of the circuit is
dependent upon the layout rather than on the specific components, if the device parameters are not exceeded.
The power stage, having the highest current levels and greatest dv/dt rates, should be given the most attention,
as both the supply and load can be severely affected by the power levels and edge rates.
Table 8. High-Current Applications
REFERENCE
DESIGNATIONS
Operational
Conditions
FUNCTION
8-A OUTPUT
12-A OUTPUT
16-A OUTPUT
C1
Input-bulk capacitor
2x ELNA
RV-35V221MH10-R
220
F, 35 V
3x ELNA
RV-35V221MH10-R
220
F, 35 V
4x ELNA
RV-35V221MH10-R
220
F, 35 V
C2
Input-bypass capacitor
2x Taiyo Yuden
GMK325F106ZH
10
F, 35 V
3x Taiyo Yuden
GMK325F106ZH
10
F, 35 V
4x Taiyo Yuden
GMK325F106ZH
10
F, 35 V
C6
0.01
at
VI = 4.5 V to 10 V
L1
Output-filter indicator
Coiltronics UP3B-2R2
2.2
H, 9.2 A
Coiltronics UP4B-1R5
1.5
H, 13.4 A
MicorMetals T68-8/90
Core w/7T, #16
1.0
H, 25 A
C3
Output-filter capacitor
2x Sanyo 4TPB470M
470
F, 4 V
3x Sanyo 4TPB470M
470
F, 4 V
4x Sanyo 4TPB470M
470
F, 4 V
Q1
Power switch
2x Siliconix Si4410DY
30 V, 10 A, 13 m
3x Siliconix Si4410DY
30 V, 10 A, 13 m
4x Siliconix Si4410DY
30 V, 10 A, 13 m
Q2
Power switch
2x Siliconix Si4410DY
30 V, 10 A, 13 m
3x Siliconix Si4410DY
30 V, 10 A, 13 m
4x Siliconix Si4410DY
30 V, 10 A, 13 m
R3
910 k
at
VI = 4.5 V to 10 V
R3
10 k
at
VI = 10 V to 25 V
R4
1.74 k
at
VI = 4.5 V to 10 V
R4
19 k
at
VI = 10 V to 25 V
R5
5.1 k
at
VI = 4.5 V to 25 V
R11
Gate-drive resistor
7
5
4
R12
Current-limit resistor
10 k
15 k
20 k
Switching
frequency
200 kHz
150 kHz
100 kHz
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| TPS5103IDBR | 功能描述:DC/DC 开关控制器 Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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