參數(shù)資料
型號： PT7742800
廠商： Texas Instruments, Inc.
英文描述： 20 Amp Current Booster for PT7708 Integrated Switching Regulator
中文描述： 20安培電流增壓的PT7708集成開關(guān)穩(wěn)壓器
文件頁數(shù)： 1/4頁
文件大?。?/td> 94K
代理商： PT7742800
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
Features
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
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
(For dimensions and PC Board layout, see
Package Styles 800 and 810.)
Standard Application
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
7
V
in
8
V
in
9
V
in
10
V
in
11
V
in
12
Do not connect
13
GND
Pin Function
14
GND
15
GND
16
GND
17
GND
18
GND
19
GND
20
V
out
21
V
out
22
V
out
23
V
out
24
V
out
25
V
out
26
Do not connect
27
Master Sync In
C
IN
+
C
OUT
+
LOAD
V
IN
VID0
VID1
VID2
VID3
V
OUT
GND
GND
STBY*
L1
1 H
REMOTE SENSE ( )
REMOTE SENSE (+)
PROGRAMMING PINS
C
IN
+
L1
1 H
PT7742
20-25
13-19
27
7-11
Vo
Vin
GND
Synch
In
PT7708
4
3
2
1
26
20-25
12
5
13-19
27
7-11
Vo
Vin
GND
SNS(+)
SNS(-)
Synch
Out
STBY
VID3 - VID0
C
OUT
+
PT Series Suffix
(PT1234
X
)
Case/Pin
Configuration
Vertical Through-Hole
Horizontal Through-Hole
Horizontal Surface Mount
N
A
C
External Capacitors:
The PT7742 requires a minimum ouput capacitance of 330μF for proper operation. The PT7742 also requires an input capacitance of
1500μF, 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 1μH.
SLTS085
(Revised 6/30/2000)
相關(guān)PDF資料
PDF描述
PT7742810 20 Amp Current Booster for PT7708 Integrated Switching Regulator
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PT7742810 制造商:TI 制造商全稱:Texas Instruments 功能描述:20 Amp Current Booster for PT7708 Integrated Switching Regulator
PT7743 制造商:TI 制造商全稱:Texas Instruments 功能描述:20-A Low-Voltage Programmable Integrated Switching Regulator
PT7743A 制造商:TI 制造商全稱:Texas Instruments 功能描述:20-A Low-Voltage Programmable Integrated Switching Regulator
PT7743C 制造商:TI 制造商全稱:Texas Instruments 功能描述:20-A Low-Voltage Programmable Integrated Switching Regulator
PT7743N 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 20A Current Booster for PT7709 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
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