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参数资料
| 型号： | PT7742A |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT DC-DC BOOSTER MODULE |
| 封装： | SIP-27 |
| 文件页数： | 1/4页 |
| 文件大小： | 89K |
| 代理商： | PT7742A |
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
Features
Description
The PT7742 is a 20 Amp “Current
Booster” for the PT7708 housed in the
same 27-pin SIP package.
Multiple PT7742 boosters will
operate in parallel with one PT7708
product, boosting output current in
increments of 20A. Combinations of a
PT7708 regulator and PT7742 current
boosters can supply power for virtually
any multiple mega-processor applica-
tion.
A PT7742 current booster adds a
parallel output stage that is driven di-
rectly by the regulator. This allows
the system to run in perfect synchron-
ization to provide a low noise solution.
The PT7742 only operates in com-
bination with a PT7708 series regulator,
and is not a stand-alone product. Please
refer to the PT7708 data sheet for the
performance specifications.
The booster uses the same 27-pin
case and has the same package options
as its companion regulator.
PT7742—3.3V
20 Amp “Current Booster” for PT7708
Integrated Switching Regulator
Ordering Information
PT7742
J
20A Current Boost
Tracks Vo of a PT7708
High Efficiency
Input Voltage Range:
3.1V to 3.6V
Synchronized with PT7708
27-pin SIP Package
Connect up to 2 in Parallel for
60 Amps
Standard Application
(For dimensions and PC Board layout, see
Package Styles 800 and 810.)
Pin-Out Information
Pin Function
1
Do not connect
2
Do not connect
3
Do not connect
4
Do not connect
5
Do not connect
6
Do not connect
7Vin
8Vin
9Vin
10
Vin
11
Vin
12
Do not connect
13
GND
Pin Function
14
GND
15
GND
16
GND
17
GND
18
GND
19
GND
20
Vout
21
Vout
22
Vout
23
Vout
24
Vout
25
Vout
26
Do not connect
27
Master Sync In
C
IN
+
C
OUT
+
LOAD
V
IN
VID0
VID1
VID2
VID3
V
OUT
GND
STBY*
L1
1H
REMOTE SENSE ( )
REMOTE SENSE (+)
PROGRAMMING PINS
C
IN
+
L1
1H
PT7742
20-25
13-19
27
7-11
Vo
Vin
GND
Synch
In
PT7708
43
21
2 6
20-25
12
5
13-19
27
7-11
Vo
Vin
GND
SNS(+)
SNS(-)
Synch
Out
STBY
VID3 - VID0
C
OUT
+
PT Series Suffix
(PT1234X)
Case/Pin
Configuration
Vertical Through-Hole
N
Horizontal Through-Hole
A
Horizontal Surface Mount
C
External Capacitors: The PT7742 requires a minimum ouput capacitance of 330F for proper operation. The PT7742 also requires an input capacitance of
1500F, which must be rated for a minimum of 1.4Arms of ripple current. For transient or dynamic load applications additional capacitance may be required.
For more information refer to the application note regarding capacitor selection for this product.
Input Filter:
An input filter inductor is optional for most applications. The inductor must be sized to handle 20ADC with a typical value of 1H.
SLTS085
(Revised 6/30/2000)
相关PDF资料 |
PDF描述 |
|---|---|
| PT7742C | 1-OUTPUT DC-DC BOOSTER MODULE |
| PT7742N | 1-OUTPUT DC-DC BOOSTER MODULE |
| PT7743N | POWER SUPPLY MODULE, DC-DC BOOSTER MODULE, SMA27 |
| PT7743C | POWER SUPPLY MODULE, DC-DC BOOSTER MODULE, SMA27 |
| PT7743A | POWER SUPPLY MODULE, DC-DC BOOSTER MODULE, SMA27 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PT7743 | 制造商:TI 制造商全称:Texas Instruments 功能描述:20-A Low-Voltage Programmable Integrated Switching Regulator |
| PT7743A | 制造商:TI 制造商全称:Texas Instruments 功能描述:20-A Low-Voltage Programmable Integrated Switching Regulator |
| PT7743C | 制造商:TI 制造商全称:Texas Instruments 功能描述:20-A Low-Voltage Programmable Integrated Switching Regulator |
| PT7743N | 功能描述:开关变换器、稳压器与控制器 20A Current Booster for PT7709 ISR RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| PT7744 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:20 Amp ＇Current Booster＇ for PT7712 ISR |
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