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TPS776-Q1 PDF预览

TPS776-Q1

更新时间： 2024-09-14 11:06:35
品牌 Logo 应用领域
德州仪器 - TI 电源电路线性稳压器IC
页数 文件大小 规格书
28页 584K
描述
具有电源正常指示和使能功能的汽车类 500mA、10V、低压降稳压器

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中文翻译

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TPS776-Q1 数据手册

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SGLS012B − MARCH 2003 − REVISED APRIL 2008  
D
D
Qualified for Automotive Applications  
ESD Protection Exceeds 2000 V Per  
MIL-STD-883, Method 3015; Exceeds 200 V  
Using Machine Model (C = 200 pF, R = 0)  
D
Fast Transient Response  
D
2% Tolerance Over Specified Conditions for  
Fixed-Output Versions  
D
20-Pin TSSOP PowerPAD(PWP) Package  
Thermal Shutdown Protection  
D
Open Drain Power-On Reset With 200-ms  
Delay (TPS775xx)  
D
D
D
D
Open Drain Power Good (TPS776xx)  
500-mA Low-Dropout Voltage Regulator  
PWP PACKAGE  
(TOP VIEW)  
Available in 1.5-V, 1.6-V (TPS77516 Only),  
1.8-V, 2.5-V, 2.8-V (TPS77628 Only), 3.3-V  
Fixed Output and Adjustable Versions  
1
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5
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10  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
GND/HSINK  
GND/HSINK  
GND/HSINK  
NC  
GND/HSINK  
GND  
D
D
Dropout Voltage to 169 mV (Typ) at 500 mA  
(TPS77x33)  
NC  
NC  
EN  
RESET/PG  
FB/NC  
IN  
IN  
Ultralow 85 µA Typical Quiescent Current  
OUT  
NC  
OUT  
description  
GND/HSINK  
GND/HSINK  
GND/HSINK  
GND/HSINK  
The TPS775xx and TPS776xx devices are designed  
to have a fast transient response and be stable with  
a 10-µF low ESR capacitors. This combination  
provides high performance at a reasonable cost.  
NC − No internal connection  
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 169 mV  
at an output current of 500 mA for the TPS77x33) and is directly proportional to the output current. Additionally,  
since 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 500 mA). These two key  
specifications yield a significant improvement in operating life for battery-powered systems. This LDO family  
also features a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the  
quiescent current to 1 µA at T = 25°C.  
J
The RESET output of the TPS775xx initiates a reset in microcomputer and microprocessor systems in the event  
of an undervoltage condition. An internal comparator in the TPS775xx monitors the output voltage of the  
regulator to detect an undervoltage condition on the regulated output voltage.  
Power good (PG) of the TPS776xx is an active high output, which can be used to implement a power-on reset  
or a low-battery indicator.  
The TPS775xx and TPS776xx are offered in 1.5-V, 1.6-V (TPS77516 only), 1.8-V, 2.5-V, 2.8 V (TPS77628 only),  
and 3.3-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.5 V to 5.5 V  
for TPS77501 option and 1.2 V to 5.5 V for TPS77601 option). Output voltage tolerance is specified as a  
maximum of 2% over line, load, and temperature ranges. The TPS775xx and TPS776xx families are available  
in 20 pin TSSOP package.  
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.  
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Copyright 2008, Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...28

中文翻译

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