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参数资料
| 型号： | PT7773C |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 32 A SWITCHING REGULATOR, 750 kHz SWITCHING FREQ-MAX, SMA27 |
| 封装： | SURFACE MOUNT PACKAGE-27 |
| 文件页数： | 1/4页 |
| 文件大小： | 456K |
| 代理商： | PT7773C |
5V
Standard Application
Cin = Required 2400F electrolytic
Cout = Required 2400F electrolytic
L1
= Optional 1H input choke
32 AMP HIGH-PERFORMANCE
“SLEDGE HAMMER” PROGRAMMABLE ISR
PT7773
Description
The PT7773 is one of a series of
high-performance, 32 Amp Integrated
Switching Regulators (ISRs) housed in
a 27-pin SIP package. The 32A capa-
bility allows easy integration of the
latest high-speed, low-voltage Ps,
ASICs, DSPs, and bus drivers into
existing 5V systems.
The output voltage of the PT7773
is programmable over the low volt-
age range, 0.8V to 3.1V via a 5-bit
input. A differential remote sense is
also provided, which automatically
compensates for any voltage drop
between the ISR and load.
An output capacitance of 2400F
is required for proper operation.
For STBY* pin; open = output enabled;
ground = output disabled.
Pin-Out Information
PT7773
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.ti.com/powertrends
Pin
Function
1 VID0
2 VID1
3 VID2
4 VID3
5 STBY*- Stand-by
6 VID4
7 V
in
8 V
in
9 V
in
10 V
in
11 V
in
12 Remote Sense Gnd
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 Remote Sense Vout
27 Sync Out
SLTS078
(Revised 5/31/2000)
Specifications
Characteristics
PT7773 SERIES
(T
a = 25°C unless noted)
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Io
Ta = +60°C, 200 LFM, pkg N
0.1(1)
—32
A
Ta = +25°C, natural convection
0.1(1)
—26
Input Voltage Range
Vin
0.1A
≤ Io ≤ 32A
4.5
—
5.5
V
Output Voltage Tolerance
Vo
Vin = +5V, Io = 32A
Vo-0.03
—
Vo+0.03
V
0°C
≤ Ta ≤ +55°C
Line Regulation
Regline
4.5V
≤ Vin ≤ 5.5V, Io = 32A
—
±10
—
mV
Load Regulation
Regload
Vin = +5V, 0.1 ≤ Io ≤ 32A
—
±10
—
mV
Vo Ripple/Noise pk-pk
Vn
Vin = +5V, Io = 32A
—
50
—
mV
Transient Response
ttr
Io step between 16A and 32A
—
100
—
Sec
with Cout = 2400F
Vos
Vo over/undershoot
—
200
—
mV
Efficiency
η
Vin = +5V, Io = 20A, Vo = 2.5V
—
86
—
%
Switching Frequency
o
4.5V
≤ Vin ≤ 5.5V
650
700
750
kHz
0.1A
≤ Io ≤ 32A
Absolute Maximum
Ta
Over Vin Range
0
—
+85 (2)
°C
Operating Temperature Range
Storage Temperature
Ts
—
-40
—
+125
°C
Weight
—
Vertical/Horizontal
—
53/66
—
grams
Notes: (1) ISR-will operate down to no load with reduced specifications. Please note that this product is not short-circuit protected.
(2) See SOA curves or consult the factory for the appropriate derating.
Output Capacitors: The PT7773 series requires a minimum output capacitance of 2400F for proper operation. Do not use Oscon type capacitors. The maximum allow-
able output capacitance is 30,000F.
Input Filter: An input filter is optional for most applications. The input inductor must be sized to handle 32ADC with a typical value of 1H. The input capacitance must
be rated for a minimum of 2.6Arms of ripple current. For transient or dynamic load applications, additional capacitance may be required.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PT7773N | 功能描述:开关变换器、稳压器与控制器 PROGRAMMABLE 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 |
| PT7774A | 功能描述:REGU 32A 0.65V-2.20V 5BIT HORZ RoHS:是 类别:电源 - 板载 >> DC DC Converters 系列:PT7770 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 |
| PT7774C | 功能描述:REG .65-2.20V 32A ADJ HORZ SMD RoHS:是 类别:电源 - 板载 >> DC DC Converters 系列:PT7770 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 |
| PT7774N | 功能描述:REG .65-2.20V 32A ADJ VERT RoHS:是 类别:电源 - 板载 >> DC DC Converters 系列:PT7770 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 |
| PT7775 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:0.8 to 3.1Vout 32Amp 5V-Input ＇Sledge Hammer＇ Programmable ISR |
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