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參數資料
| 型號： | TPS54612MPWPREP |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | 12 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封裝： | PLASTIC, HTSSOP-28 |
| 文件頁數： | 21/21頁 |
| 文件大?。?/td> | 650K |
| 代理商： | TPS54612MPWPREP |
www.ti.com
APPLICATION INFORMATION
13
12
7
8
6
BOOT
5
9
10
11
14
15
16
17
18
PH
19
PGND
PwrPad
AGND
NC
RT
SS/ENA
VIN
20
22
24
VBIAS
27
26
4
2
1
0.047
F
7.2
H
680
F
VO
1.8 V
10 k
Enable
0.1
F
VI
3 V 6 V
21
23
28
25
3
10
F
220
F
VIN
VSENSE
PWRGD
FSEL
PwrGood
CSS
COMPONENT SELECTION
INPUT FILTER
FEEDBACK CIRCUIT
OPERATING FREQUENCY
R +
500 kHz
SwitchingFrequency
100 kW
(1)
TPS54611-EP, TPS54612-EP
TPS54613-EP, TPS54614-EP
TPS54615-EP, TPS54616-EP
SGLS293A – FEBRUARY 2005 – REVISED AUGUST 2005
Figure 10 shows the schematic diagram for a typical TPS54614 application. The TPS54614 (U1) can provide
greater than 6 A of output current at a nominal output voltage of 1.8 V. For proper operation, the exposed
thermal PowerPAD underneath the integrated circuit package needs to be soldered to the printed-circuit board.
Figure 10. Application Circuit
The values for the components used in this design example were selected using the SWIFT designer software
tool. SWIFT designer provides a complete design environment for developing dc-dc converters using the
TPS54614, or other devices in the SWIFT product family. Additional design information is available at
www.ti.com.
The input to the circuit is a nominal 3.3 VDC or 5 VDC. The input filter is a 220-F POSCAP capacitor, with a
maximum allowable ripple current of 3 A. A 10-F ceramic capacitor for the TPS54614 is required, and must be
located as close as possible to the device.
The output voltage of the converter is fed directly into the VSENSE pin of the TPS54614. The TPS54614 is
internally compensated to provide stability of the output under varying line and load conditions.
In the application circuit, 350 kHz operation is selected by leaving FSEL open. Different operating frequencies
can be selected by connecting a resistor between RT pin and AGND. Choose the value of R using Equation 1 for
the desired operating frequency:
Alternately, a preset operating frequency of 550 kHz can be selected by leaving RT open and connecting the
FSEL pin to VI.
9
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| TPS54623RHLT | 15 A SWITCHING REGULATOR, 1760 kHz SWITCHING FREQ-MAX, PQCC14 |
| TPS54672PWPG4 | 12 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO28 |
| TPS54810PWPRG4 | 12 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS54612PWP | 功能描述:直流/直流開關調節器 Lo-In Voltage 6A Sync Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS54612PWP | 制造商:Texas Instruments 功能描述:BUCK PWM REG FET 6A SMD 54612 |
| TPS54612PWPG4 | 功能描述:直流/直流開關調節器 Lo-In Voltage 6A Sync Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS54612PWPR | 功能描述:直流/直流開關調節器 Lo-In Voltage 6A Sync Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS54612PWPRG4 | 功能描述:直流/直流開關調節器 Lo-In Voltage 6A Sync Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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