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TPS768XXQ_08

更新时间： 2024-01-16 15:17:01
品牌 Logo 应用领域
德州仪器 - TI 稳压器
页数 文件大小 规格书
23页 880K
描述
FAST TRANSIENT RESPONSE, 1-A LOW-DROPOUT VOLTAGE REGULATORS

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TPS768XXQ_08 数据手册

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TPS768xxQ  
www.ti.com  
SLVS211L–JUNE 1999–REVISED JANUARY 2006  
FAST TRANSIENT RESPONSE, 1-A LOW-DROPOUT VOLTAGE REGULATORS  
FEATURES  
DESCRIPTION  
•
Input Voltage Range: 2.7 V to 10 V  
This device is designed to have a fast transient  
response and be stable with 10 µF capacitors. This  
•
Low-Dropout Voltage: 230 mV typical at 1 A  
(TPS76850)  
combination provides high performance at  
reasonable cost.  
a
•
•
2% Tolerance Over Specified Conditions for  
Fixed-Output Versions  
Since the PMOS device behaves as a low-value  
resistor, the dropout voltage is very low (typically  
230 mV at an output current of 1 A for the TPS76850)  
and is directly proportional to the output current.  
Additionally, because the PMOS pass element is a  
voltage-driven device, the quiescent current is very  
low and independent of output loading (typically  
85 µA over the full range of output current, 0 mA to  
1 A). These two key specifications yield a significant  
improvement in operating life for battery-powered  
systems. This LDO family also features a shutdown  
mode; applying a TTL high signal to EN (enable)  
shuts down the regulator, reducing the quiescent  
current to less than 1 µA at TJ = 25°C.  
Open Drain Power Good (See TPS767xx for  
Power-On Reset With 200-ms Delay Option)  
•
•
Ultralow 85 µA Typical Quiescent Current  
Available in 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V,  
3.0-V, 3.3-V, 5.0-V Fixed Output and  
Adjustable (1.2 V to 5.5 V) Versions  
•
•
•
Fast Transient Response  
Thermal Shutdown Protection  
SOIC-8 (D) and TSSOP-20 (PWP) Package  
D PACKAGE  
(Top View)  
Power good (PG) is an active high output, which can  
be used to implement a power-on reset or a  
low-battery indicator.  
1
2
3
4
8
7
6
5
GND  
EN  
IN  
PG  
FB/NC  
OUT  
OUT  
TPS768xx  
6
7
16  
V
I
IN  
IN  
PG  
PG  
IN  
14  
13  
OUT  
OUT  
V
o
O
PWP PACKAGE  
(Top View)  
5
0.1 µF  
EN  
C
+
10 µF  
GND  
1
2
20  
19  
GND/HSINK  
GND/HSINK  
GND/HSINK  
3
GND/HSINK  
GND  
3
18 NC  
17  
4
NC  
NC  
Figure 1. Typical Application Configuration  
(For Fixed Output Options)  
EN  
5
16 PG  
IN  
IN  
6
15 FB/NC  
7
14  
13 OUT  
OUT  
NC  
8
9
12  
11  
GND/HSINK  
GND/HSINK  
GND/HSINK  
GND/HSINK  
10  
NC = No Internal Connection  
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.  
All trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 1999–2006, Texas Instruments Incorporated  
1234567...23

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