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参数资料
| 型号： | PT7748C |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, SMA27 |
| 文件页数： | 1/1页 |
| 文件大小： | 140K |
| 代理商： | PT7748C |
17A Current Boost
Automatically Tracks Vout of PT7720
High Efficiency
Input Voltage Range:
11V to 14V
Synchronized with PT7720
27-pin SIP Package
Run up to 4 in Parallel - 85 Amps
Standard Application
Cin = Required 560F electrolytic
Cout = Required 1200F electrolytic
L1
= Optional 1H input choke
Ordering Information
PT7748t
t
The PT7748 is a new high-perfor-
mance 17 Amp “Current Booster” for
the PT7720 Series housed in a 27-pin
SIP package. Multiple PT7748 boosters
will operate in parallel with the PT7720
Series boosting output current in incre-
ments of 17A . Combinations of
PT7720 and PT7748 current boosters
can easily supply enough power for virtu-
ally any multiple megaprocessor
application.
A PT7748 current booster adds a
parallel output stage driven by the
PT7720. As such, the system runs in
perfect sychronization providing a low
noise solution.
The PT7748 only operates in combi-
nation with the PT7720 series and is not a
stand-alone product. Therefore please
refer the PT7720 series data sheet for
performance specifications. The PT7748
also has the same mechanical dimensions
and package options as the PT7720 series.
Features
Pin-Out Information
17 AMP “CURRENT BOOSTER”
FOR PT7720 SERIES
PT7748
Series
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
Sync In
PT7748
PT7720
7 - 11
13 - 19
20 - 25
27
GND
V
OUT
12
26
1
REMOTE SENSE (+)
REMOTE SENSE (-)
VID0
VID1
VID2
VID3
PROGRAMMING PINS
2
3
4
STBY*
5
C
IN
+
C
IN
+
C
OUT
+
C
OUT
+
LOAD
7 - 11
20 - 25
13 - 19
27
1H
L1
1H
L1
V
IN
6
VID4
For assistance or to order, call (800) 531-5782
52
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
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.
PT Series Suffix (PT1234X)
Case/Pin
Configuration
Vertical Through-Hole
N
Horizontal Through-Hole
A
Horizontal Surface Mount
C
(For dimensions and PC board layout,
see Package Styles 1000 and 1010.)
Revised 1/13/99
相关PDF资料 |
PDF描述 |
|---|---|
| PT7748A | SWITCHING REGULATOR, SMA27 |
| PT7748N | SWITCHING REGULATOR, SMA27 |
| PT7749C | 1-OUTPUT DC-DC BOOSTER MODULE |
| PT7761C | 40 A SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, MSMA31 |
| PT7769N | 40 A SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, SMA31 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PT7748N | 功能描述:开关变换器、稳压器与控制器 17A Current Booster for the PT7720 Ser 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 |
| PT7749 | 制造商:TI 制造商全称:Texas Instruments 功能描述:18 AMP “CURRENT BOOSTER” FOR PT7700 SERIES |
| PT7749A | 功能描述:REGU 15A BOOSTER HORZ RoHS:是 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 |
| PT7749C | 功能描述:REGU 15A BOOSTER SMD RoHS:是 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 |
| PT7749N | 功能描述:开关变换器、稳压器与控制器 18A Crnt Booster for the PT7700/7770 Ser 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 |
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