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參數(shù)資料
| 型號(hào)： | PT7713N |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 20 A SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, MSMA27 |
| 文件頁數(shù)： | 5/9頁 |
| 文件大?。?/td> | 184K |
| 代理商： | PT7713N |
For technical support and more information, see inside back cover or visit www.ti.com
Application Notes
Increasing the Output of the PT7710 Family of
ISRs with a 20-A Compatible Current Booster
The output of PT7710 family of regulators (PT7711–
PT7716) can produce an additional 20-A output using a
compatible current booster module. Two booster modules
are available. They are the PT7744 and PT7745, which
are compatible with regulators that operate off 3.3-V
or 5-V input buses respectively. Refer to Table 2-1 for
regulator/booster compatiblity.
The booster modules are controlled directly by the regu-
lator and effectively add a parallel output stage. They
operate sychronously, to provide a low-noise solution.
Up to two booster modules can be connected to a PT771x
regulator. Each booster added increases the regulator’s
output current by 20A, for up to 60A of output current.
Current boosters are not stand-alone products, and can
only operate with a regulator. They are housed in the same
package as the regulator, and share the same mechanical
outline. Except for an increase in output current, the
overall performance of a regulator/booster combination
is identical to that of a stand-alone regulator. For more
details refer to the applicable regulator specifications.
PT7710 Series, PT7744, PT7745
Figure 1-1; Current Booster Application Schematic
C
IN
+
C
OUT
+
LOAD
V
IN
VID0
VID1
VID2
VID3
V
OUT
GND
STBY*
L
IN
1H
REMOTE SENSE (–)
REMOTE SENSE (+)
PROGRAMMING PINS
C
IN
+
L
IN
1H
PT7744/45
Booster
20-25
13-19
27
7-11
V
O
V
IN
GND
Synch In
VID4
C
OUT
+
PT771x
64
321
26
20-25
12
5
13-19
27
7-11
V
O
V
IN
GND
SNS(+)
SNS(-)
Synch
Out
STBY
VID4 - VID0
Table 2-2; Booster Pin-Out Information
Pin Function
1
No Connect
10 Vin
19 GND
2
No Connect
11 Vin
20 Vout
3
No Connect
12 No Connect
21 Vout
4
No Connect
13 GND
22 Vout
5
No Connect
14 GND
23 Vout
6
No Connect
15 GND
24 Vout
7Vin
16 GND
25 Vout
8Vin
17 GND
26 No Connect
9Vin
18 GND
27 Sync In
Notes:
1. Each booster requires the same amount of input and
output capacitance as recommended for a stand-alone
regulator. Consult the individual data sheet of the
applicable regulator, and the related application note
regarding capacitor selection for this product family.
2. The 1-H filter choke located at the input of each
regulator and booster module (Lin) is optional for most
applications. If specified, each inductor must be sized
to handle 20ADC at full output load.
3. The pin-out of the current booster modules include a
number pins identified, “No Connect” (see Table 2-2).
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.
Table 2-1; Booster Compatibility
P7744 Booster
PT7745 Booster
Regulator
(3.3V Input Bus)
(5V Input Bus)
PT7711
PT7712
PT7713
PT7714
PT7715
PT7716
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PT7713A | 20 A SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, MSMA27 |
| PT7740A | 1-OUTPUT DC-DC BOOSTER MODULE |
| PT7740C | 1-OUTPUT DC-DC BOOSTER MODULE |
| PT7741A | DC-DC BOOSTER MODULE |
| PT7741C | DC-DC BOOSTER MODULE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PT7714 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:0.8V to 1.575V 20A 3.3V-Input Programmable ISR |
| PT7714A | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 PROGRAMMABLE ISR RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| PT7714C | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 PROGRAMMABLE ISR RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| PT7714N | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 PROGRAMMABLE ISR RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| PT7715 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:20-A 1.075V to 1.85V 5V-Input Programmable ISR |
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