參數(shù)資料
型號(hào)： PT7721N
英文描述： SMPS Controller
中文描述： 開關(guān)電源控制器
文件頁(yè)數(shù)： 1/7頁(yè)
文件大?。?/td> 142K
代理商： PT7721N
For technical support and more information, see inside back cover or visit www.ti.com
Standard Application
Features
+12V Bus Input
5-bit Programmable:
1.3V to 3.5V or
4.5V to 7.6V
High Efficiency
Differential Remote Sense
27-pin SIP Package
Parallelable with PT7748
17A current booster
Pin Function
1
VID0
2
VID1
3
VID2
4
VID3
5
STBY #
6
VID4
7
Vin
8
Vin
9
Vin
10
Vin
11
Vin
12
Sense Gnd
13
GND
14
GND
Description
The PT7720 series is a +12-V input,
17-A output, high-performance Integrated
Switching Regulator (ISR), housed in a
27-pin SIP package. The 17A capability
allows easy integration of the latest high-
speed, low-voltage microprocessors and
bus drivers into +12V power systems.
The output voltage is programmable
using a 5-bit code. The output voltage
range and code for the PT7721 is com-
patible with Intel’s Pentium
II processor.
The PT7720 series has been designed
to work in parallel with one or more of
the PT7748 current boosters, allowing
the output load current capacity to be
increased in increments of 17A.
A differential remote sense is provided
to compensate for voltage drop between
the ISR to the load. A 1200μF of output
capacitance is required for proper operation.
PT Series Suffix
(PT1234
x
)
Case/Pin
Order
Configuration
Suffix
Vertical
Horizontal
SMD
Package
C ode *
N
A
C
(EJ E)
(EJ F)
(EJ G)
* Previously known as package styles 1000/
1010. (Reference the applicable package code
drawing for the dimensions and PC board
layout)
Ordering Information
PT 7721
PT 7722
PT 7748
= 1.3 to 3.5 Volts
= 4.5 to 7.6 Volts
= 17-A Booster
17A, 12-V Input “Big-Hammer II”
Programmable ISR
PT7720 Series
SLTS048B
(Revised 5/21/2002)
PT7720
7 - 11
13 - 19
20 - 25
27
V
IN
GND
1μH
GND
V
OUT
C
OUT
+
C
IN
+
12
26
1
L1
SYNC OUT
LOAD
REMOTE SENSE (+)
REMOTE SENSE (-)
VID1
PROGRAMMING PINS
VID0
2
3
4
STBY*
5
6
Cin
= Required 560μF electrolytic
(See input filter note)
Cout= Required 1200μF electrolytic
L
1
= Optional 1μH input choke
Pin Function
15
GND
16
GND
17
GND
18
GND
19
GND
20
Vout
21
Vout
22
Vout
23
Vout
24
Vout
25
Vout
26
Sense Vout
27
Sync Out
# For further information, see application
notes.
Pin-Out Information
— Not Recommended for New Designs —
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PT7722 制造商:TI 制造商全稱:Texas Instruments 功能描述:17 AMP 12V INPUT “BIG-HAMMER II” PROGRAMMABLE ISR
PT7722A 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 4.5-7.6Vout 17Amp 12 Vin 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
PT7722C 制造商:POWERTRENDS 功能描述:
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(biāo)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(fēng)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
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