- 您现在的位置：买卖IC网 > PDF目录96796 > PT7722N SWITCHING REGULATOR, SMA27 PDF资料下载
参数资料
| 型号： | PT7722N |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, SMA27 |
| 封装： | VERTICAL THROUGH HOLE, SIP-27 |
| 文件页数： | 1/3页 |
| 文件大小： | 203K |
| 代理商： | PT7722N |
PT7720
7 - 11
13 - 19
20 - 25
27
V
IN
GND
1H
GND
V
OUT
C
OUT
+
C
IN
+
12
26
1
L1
SYNC OUT
LOAD
REMOTE SENSE (+)
REMOTE SENSE (-)
VID1
VID2
VID3
VID4
PROGRAMMING PINS
2
3
4
STBY*
5
6
VID0
For assistance or to order, call (800) 531-5782
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
50
Pin-Out Information
Pin Function
1
VID0
2
VID1
3
VID2
4
VID3
5
STBY* - Stand-by
6
VID4
7Vin
8Vin
9Vin
10
Vin
11
Vin
12
Remote Sense Gnd
13
GND
14
GND
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
Remote Sense
Vout
27
Sync Out
Standard Application
Cin = Required 560F electrolytic
(See input filter note)
Cout = Required 1200F electrolytic
L1
= Optional 1H input choke
For STBY* pin:
open = output enabled
ground = output disabled.
+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 boosters
Features
Series
17 AMP 12V INPUT “BIG-HAMMER II” PRO-
GRAMMABLE ISR
PT7720
The PT7720 series is a new +12V input,
17A 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 Ps and bus drivers into +12V
distributed power systems.
The PT7720 series has been designed
to work in parallel with one or more of the
PT7748 current boosters for increased Iout
in increments of 17A.
The output voltage of the PT7721 can
be easily programmed from 1.3V to 3.5V
with a 5 bit input compatible with Intel’s
PentiumIIProcessor. A differential re-
mote sense is also provided which
automatically compensates for any voltage
drop from the ISR to the load.
1200F of output capacitance is re-
quired for proper operation.
Output Capacitors:
The PT7720 series requires a minimum output capacitance of 1200F for proper operation. Do not use Oscon type capacitors. The maximum allowable output capacitance
Is (57,000 ÷ Vout)F, or 15,000F, whichever is less.
Input Filter:
An input inductor is optional for most applications. The input inductor must be sized to handle 7ADC with a typical value of 1H. The input capacitance must be rated for a
minimum of 4.0 Arms of ripple current when operated at maximum output current and maximum output voltage. Contact an applications engineer for input capacitor selection for applications
at other output voltages and output currents.
Specifications
Characteristics
PT7720 SERIES
(T
a = 25°C unless noted)
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Io
Ta = +60°C, 200 LFM, pkg N, Vo ≤ 5V
0.1*
—17**
A
Ta = +25°C, natural convection, Vo ≤ 5V
0.1*
—17**
A
Output Power
Po
Ta = +60°C, 200 LFM, pkg N, Vo ≥ 5V
—
85
Watts
Ta = +25°C, natural convection, Vo ≥ 5V
—
85
Watts
Input Voltage Range
Vin
0.1A
≤ Io ≤ 17A
11.0
—
14.0
V
Output Voltage Tolerance
Vo
Vin = +12V, Io = 17A
(PT7721)
Vo-0.03
—
Vo+0.03
V
0°C
≤ Ta ≤ +60°C
(PT7722)
—
±1.0%
±2.0%
% Vo
Line Regulation
Regline
11V
≤ Vin ≤ 14V, Io = 17A (Using remote sense)
—
±5
±10
mV
Load Regulation
Regload
Vin = +12V, 0.1 ≤ Io ≤ 17A (Using remote sense)
—
±5
±10
mV
Vo Ripple/Noise
Vn
Vin = +12V, Io = 17A
(PT7721)
—
50
—
mVpp
(PT7722)
—
100
—
mVpp
Transient Response
ttr
Io step between 7.5A and 15A
—
100
—
Sec
with Cout = 1200F
Vos
Vo over/undershoot
—
200
—
mV
Efficiency
η
Vin = +12V, Io = 10A
Vo = 5.0V
—
90
—
%
Vo = 3.3V
—
88
—
%
Vo = 2.5V
—
85
—
%
Vo = 1.5V
—
78
—
%
Switching Frequency
o
11V
≤ Vin ≤ 14V
300
350
400
kHz
0.1A
≤ Io ≤ 17A
Absolute Maximum
Ta
—0
—
+85
°C
Operating Temperature Range
Recommended Operating
Ta
Forced Air Flow = 200 LFM
0—
+65***
°C
Temperature Range
At Vin = 12V, Io = 12A
Storage Temperature
Ts
—
-40
—
+125
°C
Mechanical Shock
Per Mil-STD-883D, Method 2002.3 , 1 msec,
—
TBD
—
G’s
Half Sine, mounted to a fixture
Mechanical Vibration
Per Mil-STD-883D, Method 2007.2,
20-2000 Hz, Soldered in a PC board
—
TBD
—
G’s
Weight
—
Vertical/Horizontal
—
51/64
—
grams
*
ISR-will operate down to no load with reduced specifications. Please note that this product is not short-circuit protected.
** The PT7720 series can be easily paralleled with one or more of the PT7748 Current Boosters to provide increased output current in increments of 17A.
*** See Safe Operating Area chart.
Revised 1/13/99
相关PDF资料 |
PDF描述 |
|---|---|
| PT7721A | SWITCHING REGULATOR, SMA27 |
| PT7722A | 17 A SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, MSMA27 |
| PT7721N | 17 A SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, MSMA27 |
| PT7741A | 1-OUTPUT DC-DC BOOSTER MODULE |
| PT7741C | 1-OUTPUT DC-DC BOOSTER MODULE |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PT7740 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:32Amp ＇Current Booster＇ for the PT7778 Regulator |
| PT7740A | 功能描述:REGULATR 32A BSTR FOR PT7778 HRZ RoHS:否 类别:电源 - 板载 >> DC DC Converters 系列:PT7740 标准包装:10 系列:PT4570 类型:隔离 输出数:1 电压 - 输入（最小）:36V 电压 - 输入（最大）:75V Voltage - Output 1:9V Voltage - Output 2:- Voltage - Output 3:- 电流 - 输出（最大）:3.3A 电源（瓦） - 制造商系列:30W 电压 - 隔离:1.5kV（1500V） 特点:- 安装类型:表面贴装 封装/外壳:19-SIP SMD 模块 尺寸/尺寸:3.00" L x 1.19" W x 0.50" H（76.2mm x 30.2mm x 12.7mm） 包装:托盘 工作温度:-40°C ~ 85°C 效率:84% 电源（瓦特）- 最大:30W |
| PT7740C | 功能描述:REGULATR 32A BSTR FOR PT7778 SMD RoHS:否 类别:电源 - 板载 >> DC DC Converters 系列:PT7740 标准包装:10 系列:PT4570 类型:隔离 输出数:1 电压 - 输入（最小）:36V 电压 - 输入（最大）:75V Voltage - Output 1:9V Voltage - Output 2:- Voltage - Output 3:- 电流 - 输出（最大）:3.3A 电源（瓦） - 制造商系列:30W 电压 - 隔离:1.5kV（1500V） 特点:- 安装类型:表面贴装 封装/外壳:19-SIP SMD 模块 尺寸/尺寸:3.00" L x 1.19" W x 0.50" H（76.2mm x 30.2mm x 12.7mm） 包装:托盘 工作温度:-40°C ~ 85°C 效率:84% 电源（瓦特）- 最大:30W |
| PT7740N | 功能描述:REGULATR 32A BSTR FOR PT7778 VRT RoHS:否 类别:电源 - 板载 >> DC DC Converters 系列:PT7740 标准包装:10 系列:PT4570 类型:隔离 输出数:1 电压 - 输入（最小）:36V 电压 - 输入（最大）:75V Voltage - Output 1:9V Voltage - Output 2:- Voltage - Output 3:- 电流 - 输出（最大）:3.3A 电源（瓦） - 制造商系列:30W 电压 - 隔离:1.5kV（1500V） 特点:- 安装类型:表面贴装 封装/外壳:19-SIP SMD 模块 尺寸/尺寸:3.00" L x 1.19" W x 0.50" H（76.2mm x 30.2mm x 12.7mm） 包装:托盘 工作温度:-40°C ~ 85°C 效率:84% 电源（瓦特）- 最大:30W |
| PT7741 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:32Amp ＇Current Booster＇ for the PT7779 Regulator |
发布紧急采购，3分钟左右您将得到回复。