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TPS73250-Q1

更新时间： 2024-09-13 12:47:11
品牌 Logo 应用领域
德州仪器 - TI 稳压器
页数 文件大小 规格书
20页 732K
描述
Cap-Free, NMOS, 250-mA Low-Dropout Regulator with Reverse Current Protection

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TPS73250-Q1 数据手册

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TPS73250-Q1  
www.ti.com  
SLVSBH6 –JUNE 2012  
Cap-Free, NMOS, 250-mA Low-Dropout Regulator with Reverse Current Protection  
Check for Samples: TPS73250-Q1  
1
FEATURES  
APPLICATIONS  
•
•
Qualified for Automotive Applications  
•
•
•
Post-Regulation for Switching Supplies  
Noise-Sensitive Circuitry such as VCOs  
AEC-Q100 Qualified With the Following  
Results:  
Point of Load Regulation for DSPs, FPGAs,  
ASICs, and Microprocessors  
–
Device Temperature Grade 1: –40°C to  
125°C Ambient Operating Temperature  
Range  
Optional  
Optional  
VIN  
VOUT  
IN  
OUT  
NR  
–
–
Device HBM ESD Classification Level H2  
Device CDM ESD Classification Level C3B  
TPS73250-Q1  
EN  
GND  
•
Stable With No Output Capacitor or Any Value  
or Type of Capacitor  
ON  
OFF  
•
•
Input Voltage Range: 1.7 V to 5.5 V  
Optional  
Typical Application Circuit for Fixed-Voltage Versions  
Ultralow Dropout Voltage: 40 mV Typ at 250  
mA  
•
•
Excellent Load Transient Response, With or  
Without Optional Output Capacitor  
DESCRIPTION  
The TPS73250-Q1 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.  
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  
The TPS73250-Q1 uses an advanced BiCMOS  
process to yield high precision while delivering very  
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.  
Thermal Shutdown and Specified Min/Max  
Current Limit Protection  
•
Available in Multiple Output Voltage Versions  
–
–
–
Fixed Outputs of 1.20 V to 5 V  
Adjustable Outputs from 1.20 V to 5.5 V  
Custom Outputs Available  
DRB PACKAGE  
3mmx 3mm SON  
(TOP VIEW)  
DBV PACKAGE  
SOT23  
(TOP VIEW)  
OUT  
N/C  
1
2
3
4
8
7
6
5
IN  
1
5
IN  
GND  
EN  
OUT  
N/C  
N/C  
EN  
NR/FB  
GND  
2
NR/FB  
3
4
DCQ PACKAGE  
SOT223  
(TOP VIEW)  
TAB IS GND  
6
3
1
2
4
5
IN  
GND  
EN  
OUT NR/FB  
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.  
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 © 2012, Texas Instruments Incorporated  
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