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TPS75301-Q1

更新时间： 2024-02-27 03:52:54
品牌 Logo 应用领域
德州仪器 - TI 稳压器
页数 文件大小 规格书
31页 557K
描述
FAST-TRANSIENT-RESPONSE 1.5-A LOW-DROPOUT VOLTAGE REGULATORS

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TPS75301-Q1 数据手册

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SGLS159A − APRIL 2003 − REVISED APRIL 2008  
PWP PACKAGE  
(TOP VIEW)  
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
GND/HEATSINK  
GND/HEATSINK  
NC  
NC  
GND  
NC  
NC  
NC  
NC  
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1.5-A Low-Dropout Voltage Regulator  
Available in 1.5-V, 1.8-V, 2.5-V, 3.3-V, Fixed  
Output and Adjustable Versions  
EN  
†
PG or RESET  
Open Drain Power-Good (PG) Status  
Output (TPS751xxQ)  
FB/SENSE  
OUTPUT  
OUTPUT  
Open Drain Power-On Reset With 100-ms  
Delay (TPS753xxQ)  
NC  
GND/HEATSINK  
GND/HEATSINK  
Dropout Voltage Typically 160 mV at 1.5 A  
(TPS75133Q)  
NC − No internal connection  
PG is on the TPS751xx and RESET is on the TPS753xx  
†
Ultralow 75 µA Typical Quiescent Current  
Fast Transient Response  
2% Tolerance Over Specified Conditions  
For Fixed-Output Versions  
D
20-Pin TSSOP (PWP) PowerPADPackage  
Thermal Shutdown Protection  
D
description  
The TPS753xxQ and TPS751xxQ are low dropout regulators with integrated power-on reset and power-good (PG)  
functions respectively. These devices are capable of supplying 1.5 A of output current with a dropout of 160 mV  
(TPS75133Q, TPS75333Q). Quiescent current is 75 µA at full load and drops down to 1 µA when the device is  
disabled. TPS751xxQ and TPS753xxQ are designed to have fast transient response for larger load current  
changes.  
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 160 mV at an  
output current of 1.5 A for the TPS75x33Q) 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 75 µA over the full range of output current, 1 mA to 1.5 A). These two key specifications yield a significant  
improvement in operating life for battery-powered systems.  
The device is enabled when EN is connected to a low level voltage. 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 less than 1  
µA at T = 25°C.  
J
For the TPS751xxQ, the power-good terminal (PG) is an active high, open drain output, which can be used to  
implement a power-on reset or a low-battery indicator.  
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...31

中文翻译

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