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TPS77033-Q1

更新时间： 2024-11-23 11:58:39
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德州仪器 - TI 稳压器
页数 文件大小 规格书
15页 343K
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ULTRALOW-POWER 50-mA LOW-DROPOUT LINEAR REGULATORS

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TPS77033-Q1 数据手册

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TPS77033-Q1  
www.ti.com ....................................................................................................................................................... SLVS596C–AUGUST 2005–REVISED APRIL 2008  
ULTRALOW-POWER 50-mA LOW-DROPOUT LINEAR REGULATORS  
1
FEATURES  
•
•
•
•
•
•
•
Qualified for Automotive Applications  
DBV PACKAGE  
(TOP VIEW)  
50-mA Low-Dropout Regulator  
Available in a 3.3-V Fixed-Output Voltage  
Only 17-µA Quiescent Current at 50 mA  
1-µA Quiescent Current in Standby Mode  
Dropout Voltage Typically 35 mV at 50 mA  
1
5
OUT  
IN  
GND  
2
3
4
NC/FB  
EN  
–40°C to 125°C Operating Junction  
Temperature Range  
•
5-Pin SOT-23 (DBV) Package  
DESCRIPTION  
The TPS77033 low-dropout (LDO) voltage regulator offers the benefits of low dropout voltage, ultralow-power  
operation, and miniaturized packaging. This regulator features low dropout voltages and ultralow quiescent  
current compared to conventional LDO regulators. Offered in a 5-terminal small-outline integrated-circuit SOT-23  
package, the TPS77033 series device is ideal for micropower operations and where board space is at a  
premium.  
A combination of new circuit design and process innovation has enabled the usual PNP pass transistor to be  
replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the  
dropout voltage is low and is directly proportional to the load current. Since the PMOS pass element is a  
voltage-driven device, the quiescent current is ultralow (28 µA maximum) and is stable over the entire range of  
output load current (0 mA to 50 mA). Intended for use in portable systems such as laptops and cellular phones,  
the ultralow-dropout voltage feature and ultralow-power operation result in a significant increase in system  
battery operating life.  
The TPS77033 also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current  
to 1 µA typical at TJ = 25°C. The TPS77033 is offered in a 3.3-V fixed-voltage versions.  
AVAILABLE OPTIONS(1)  
TJ  
VOLTAGE  
PACKAGE(2)  
PART NUMBER(3)  
SYMBOL  
–40°C to 125°C  
3.3 V  
SOT-23 – DBV  
TPS77033QDBVRQ1  
PCXI  
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI  
web site at www.ti.com.  
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.  
(3) DBVR indicates tape and reel of 3000 parts.  
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.  
Copyright © 2005–2008, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
1234567...15

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