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TPS73201-Q1

更新时间： 2024-09-13 12:47:11
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德州仪器 - TI 稳压器
页数 文件大小 规格书
26页 1024K
描述
CAP-FREE NMOS 250-mA LOW-DROPOUT REGULATOR WITH REVERSE-CURRENT PROTECTION

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中文翻译

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TPS73201-Q1 数据手册

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TPS73201-Q1, TPS73215-Q1, TPS73216-Q1  
TPS73218-Q1, TPS73225-Q1, TPS73230-Q1  
TPS73233-Q1, TPS73250-Q1  
www.ti.com ........................................................................................................................................................... SGLS303D–MAY 2005–REVISED MARCH 2009  
CAP-FREE NMOS 250-mA LOW-DROPOUT REGULATOR  
WITH REVERSE-CURRENT PROTECTION  
1
FEATURES  
DESCRIPTION  
•
Qualified for Automotive Applications  
The TPS732xx family of low-dropout (LDO) voltage  
regulators uses a new topology: an NMOS pass  
element in a voltage-follower configuration. This  
topology is stable using output capacitors with low  
ESR, and even allows operation without a capacitor.  
It also provides high reverse blockage (low reverse  
current) and ground pin current that is nearly constant  
over all values of output current.  
•
Stable with No Output Capacitor or Any Value  
or Type of Capacitor  
•
•
Input Voltage Range: 1.7 V to 5.5 V  
Ultralow Dropout Voltage:  
40 mV Typ at 250 mA  
•
•
Excellent Load Transient Response—With or  
Without Optional Output Capacitor  
The TPS732xx uses an advanced BiCMOS process  
to yield high precision while delivering low dropout  
voltages and low ground pin current. Current  
consumption, when not enabled, is under 1 µA and  
ideal for portable applications. The extremely low  
output noise (30 µVRMS with 0.1 µF CNR) is ideal for  
powering VCOs. These devices are protected by  
thermal shutdown and foldback current limit.  
New NMOS Topology Provides Low Reverse  
Leakage Current  
•
•
•
Low Noise: 30 µVRMS Typ (10 kHz to 100 kHz)  
0.5% Initial Accuracy  
1% Overall Accuracy (Line, Load, and  
Temperature)  
•
•
Less Than 1 µA Max IQ in Shutdown Mode  
DRB PACKAGE  
(TOP VIEW)  
DBV PACKAGE  
(TOP VIEW)  
Thermal Shutdown and Specified Min/Max  
Current Limit Protection  
OUT  
NC  
1
2
3
4
8
7
6
5
IN  
1
2
3
5
IN  
GND  
EN  
OUT  
•
Available in Multiple Output Voltage Versions  
NC  
NC  
EN  
–
Fixed Outputs of 1.2 V, 1.5 V, 1.6 V, 1.8 V,  
2.5 V, 3 V, 3.3 V, and 5 V  
NR/FB  
GND  
4
NR/FB  
–
–
Adjustable Outputs From 1.2 V to 5.5 V  
Custom Outputs Available  
NC – No internal connection  
Optional  
Optional  
APPLICATIONS  
VIN  
VOUT  
IN  
OUT  
TPS732xx  
GND  
•
•
•
•
Portable/Battery-Powered Equipment  
Post-Regulation for Switching Supplies  
Noise-Sensitive Circuitry Such as VCOs  
Point of Load Regulation for DSPs, FPGAs,  
ASICs, and Microprocessors  
EN  
NR  
Optional  
Typical Application Circuit for Fixed-Voltage Versions  
Figure 1.  
1
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.  
UNLESS OTHERWISE NOTED this document contains  
PRODUCTION DATA information 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.  
Copyright © 2005–2009, Texas Instruments Incorporated  
1234567...26

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