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TPS704 PDF预览

TPS704

更新时间: 2024-11-05 11:06:39
品牌 Logo 应用领域
德州仪器 - TI 电源电路光电线性稳压器IC
页数 文件大小 规格书
32页 569K
描述
具有电源正常指示和独立使能功能的 1A 双通道超低压降稳压器

TPS704 数据手册

 浏览型号TPS704的Datasheet PDF文件第2页浏览型号TPS704的Datasheet PDF文件第3页浏览型号TPS704的Datasheet PDF文件第4页浏览型号TPS704的Datasheet PDF文件第5页浏览型号TPS704的Datasheet PDF文件第6页浏览型号TPS704的Datasheet PDF文件第7页 
TPS70445, TPS70448, TPS70451, TPS70458, TPS70402  
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS  
WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS  
SLVS307B – SEPTEMBER 2000 – REVISED APRIL 2003  
D
D
D
Dual Output Voltages for Split-Supply  
Applications  
D
D
D
D
D
D
D
D
D
Ultralow 185 µA (typ) Quiescent Current  
2 µA Input Current During Standby  
Independent Enable Functions (See Part  
Number TPS703xx for Sequenced Outputs)  
Low Noise: 78 µV  
Capacitor  
Without Bypass  
RMS  
Output Current Range of 1 A on  
Regulator 1 and 2 A on Regulator 2  
Quick Output Capacitor Discharge Feature  
One Manual Reset Input  
D
Fast Transient Response  
2% Accuracy Over Load and Temperature  
Undervoltage Lockout (UVLO) Feature  
24-Pin PowerPAD TSSOP Package  
Thermal Shutdown Protection  
D
Voltage Options Are 3.3-V/2.5-V, 3.3-V/1.8-V,  
3.3-V/1.5-V, 3.3-V/1.2-V, and Dual Adjustable  
Outputs  
D
D
Open Drain Power-On Reset With 120-ms  
Delay  
Open Drain Power Good for Regulator 1  
and Regulator 2  
1
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
GND/HEATSINK  
GND/HEATSINK  
2
V
V
V
V
V
IN1  
IN1  
OUT1  
3
OUT1  
description  
4
NC  
MR  
EN1  
/FB1  
SENSE1  
5
NC  
The TPS704xx family of devices consists of  
6
PG1  
PG2  
NC  
dual-output low-dropout voltage regulators with  
integrated SVS (RESET, POR, or power on reset)  
and power good (PG) functions. These devices  
are capable of supplying 1 A and 2 A by regulator  
1 and regulator 2 respectively. Quiescent current  
is typically 185 µA at full load. Differentiated  
features, such as accuracy, fast transient  
response, SVS supervisory circuit (power on  
reset), manual reset input, and independent  
enable functions provide a complete system  
solution.  
7
EN2  
8
RESET  
GND  
9
V
V
V
/FB2  
SENSE2  
OUT2  
10  
11  
12  
V
V
IN2  
IN2  
OUT2  
GND/HEATSINK  
GND/HEATSINK  
NC – No internal connection  
TPS70451 PWP  
I/O  
3.3 V  
V
OUT1  
5 V  
V
IN1  
22 µF  
0.22 µF  
V
SENSE1  
250 kΩ  
250 kΩ  
250 kΩ  
PG1  
PG1  
MR  
MR  
>2 V  
V
IN2  
<0.7 V  
0.22 µF  
EN1  
RESET  
RESET  
PG2  
>2 V  
>2 V  
PG2  
EN1  
EN2  
<0.7 V  
<0.7 V  
EN2  
V
SENSE2  
1.8 V  
Core  
V
OUT2  
47 µF  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PowerPAD is a trademark of Texas Instruments.  
Copyright 2000, – 2003 Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  

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