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參數(shù)資料
| 型號： | PT7722C |
| 英文描述： | 100V Single N-Channel Hi-Rel MOSFET in a TO-254AA package |
| 中文描述： | 開關(guān)電源控制器 |
| 文件頁數(shù)： | 4/7頁 |
| 文件大?。?/td> | 142K |
| 代理商： | PT7722C |
For technical support and more information, see inside back cover or visit www.ti.com
Application Notes
Using the PT7748 17-A Current Booster
with the PT7720 Series Programmable ISRs
The PT7748 is a 17-A “Current Booster” module
for the PT7720 series of regulators. The booster is
controlled directly by the regulator, and effectively
adds a parallel output stage. This allows the system
to run sychronously, providing a low noise solution.
Up to four booster modules can be connected to a
single regulator. Each booster increases the available
output current by 17A. Combinations of a regulator
and booster modules can supply power for virtually
any multi-processor application.
A current booster is not a stand-alone product, and
can only operate with a regulator. It is housed in
the same package as its compatible regulator, and
shares the same mechanical outline. Except for an
increase in output current, the overall performance
of a PT7720 regulator/booster combination is identi-
cal to that of a stand-alone regulator. Refer to the
appropriate data sheet for the performance speci-
fications.
Notes:
PT7721/22, PT7748
Figure 1-1; Current Booster Application Schematic
PT7748
PT7720
7 - 11
13 - 19
20 - 25
27
GND
GND
V
OUT
12
1
REMOTE SENSE (+)
REMOTE SENSE (-)
VID0
PROGRAMMING PINS
2
3
4
STBY*
5
C
IN
+
C
IN
+
C
OUT
+
C
OUT
+
LOAD
7 - 11
20 - 25
13 - 19
27
1μH
Lin
1μH
Lin
V
IN
6
To Additional
Boosters
Table 1-1; PT7748 Pin-Out Information
Pin Function
1
No Connect
2
No Connect
3
No Connect
4
No Connect
5
No Connect
6
No Connect
7
V
in
8
V
in
9
V
in
Pin Function
10 V
in
11 V
in
12 No Connect
13 GND
14 GND
15 GND
16 GND
17 GND
18 GND
Pin Function
19
GND
20
V
out
21
V
out
22
V
out
23
V
out
24
V
out
25
V
out
26
No Connect
27
Sync In
1. Each booster requires the same amount of input and
output capacitance as recommended for a stand-alone
regulator. See the Standard Application schematic and
the respective input/output filter notes in the PT7720
product data sheet.
2. The 1-μH filter choke located at the input of each
regulator and booster module (L
in
) is optional for most
applications. If specified, each inductor must be sized
to handle 7ADC at full output load.
3. The pin-out of the current booster modules include a
number pins identified, “No Connect” (see Table 1).
These pins are not connected internally to the module
but must be soldered to a pad to preserve the unit’s
mechanical integrity.
4. A similar PCB footprint and trace layout between the
regulator and each booster will facilitate current sharing
between all modules.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PT7722N | 功能描述:DC/DC轉(zhuǎn)換器 4.5-7.6Vout 17Amp 12 Vin Programmable ISR RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
| PT7740 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32Amp ＇Current Booster＇ for the PT7778 Regulator |
| PT7740A | 功能描述:REGULATR 32A BSTR FOR PT7778 HRZ RoHS:否 類別:電源 - 板載 >> DC DC Converters 系列:PT7740 標準包裝:10 系列:PT4570 類型:隔離 輸出數(shù):1 電壓 - 輸入（最?。?36V 電壓 - 輸入（最大）:75V Voltage - Output 1:9V Voltage - Output 2:- Voltage - Output 3:- 電流 - 輸出（最大）:3.3A 電源（瓦） - 制造商系列:30W 電壓 - 隔離:1.5kV（1500V） 特點:- 安裝類型:表面貼裝 封裝/外殼:19-SIP SMD 模塊 尺寸/尺寸:3.00" L x 1.19" W x 0.50" H（76.2mm x 30.2mm x 12.7mm） 包裝:托盤 工作溫度:-40°C ~ 85°C 效率:84% 電源（瓦特）- 最大:30W |
| PT7740C | 功能描述:REGULATR 32A BSTR FOR PT7778 SMD RoHS:否 類別:電源 - 板載 >> DC DC Converters 系列:PT7740 標準包裝:10 系列:PT4570 類型:隔離 輸出數(shù):1 電壓 - 輸入（最?。?36V 電壓 - 輸入（最大）:75V Voltage - Output 1:9V Voltage - Output 2:- Voltage - Output 3:- 電流 - 輸出（最大）:3.3A 電源（瓦） - 制造商系列:30W 電壓 - 隔離:1.5kV（1500V） 特點:- 安裝類型:表面貼裝 封裝/外殼:19-SIP SMD 模塊 尺寸/尺寸:3.00" L x 1.19" W x 0.50" H（76.2mm x 30.2mm x 12.7mm） 包裝:托盤 工作溫度:-40°C ~ 85°C 效率:84% 電源（瓦特）- 最大:30W |
| PT7740N | 功能描述:REGULATR 32A BSTR FOR PT7778 VRT RoHS:否 類別:電源 - 板載 >> DC DC Converters 系列:PT7740 標準包裝:10 系列:PT4570 類型:隔離 輸出數(shù):1 電壓 - 輸入（最?。?36V 電壓 - 輸入（最大）:75V Voltage - Output 1:9V Voltage - Output 2:- Voltage - Output 3:- 電流 - 輸出（最大）:3.3A 電源（瓦） - 制造商系列:30W 電壓 - 隔離:1.5kV（1500V） 特點:- 安裝類型:表面貼裝 封裝/外殼:19-SIP SMD 模塊 尺寸/尺寸:3.00" L x 1.19" W x 0.50" H（76.2mm x 30.2mm x 12.7mm） 包裝:托盤 工作溫度:-40°C ~ 85°C 效率:84% 電源（瓦特）- 最大:30W |
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