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TPS770 PDF预览

TPS770

更新时间: 2024-11-03 11:06:39
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
16页 232K
描述
50mA、10V、低 IQ、低压降稳压器

TPS770 数据手册

 浏览型号TPS770的Datasheet PDF文件第2页浏览型号TPS770的Datasheet PDF文件第3页浏览型号TPS770的Datasheet PDF文件第4页浏览型号TPS770的Datasheet PDF文件第5页浏览型号TPS770的Datasheet PDF文件第6页浏览型号TPS770的Datasheet PDF文件第7页 
TPS77001, TPS77012, TPS77015, TPS77018, TPS77025  
TPS77027, TPS77028, TPS77030, TPS77033, TPS77050  
ULTRA LOW-POWER 50-mA LOW-DROPOUT LINEAR REGULATORS  
SLVS210C – JUNE 1999 – REVISED SEPTEMBER 1999  
DBV PACKAGE  
(TOP VIEW)  
50-mA Low-Dropout Regulator  
Available in 1.2-V, 1.5-V, 1.8-V, 2.5-V, 2.7-V,  
2.8-V, 3.0-V, 3.3-V, and 5-V Fixed-Output and  
Adjustable Versions  
1
2
3
5
4
OUT  
IN  
GND  
Only 17 µA Quiescent Current at 50 mA  
1 µA Quiescent Current in Standby Mode  
Dropout Voltage Typically 35 mV @ 50mA  
Over Current Limitation  
NC/FB  
EN  
–40°C to 125°C Operating Junction  
Temperature Range  
5-Pin SOT-23 (DBV) Package  
description  
The TPS770xx family of low-dropout (LDO) voltage regulators offers the benefits of low dropout voltage, ultra  
low-power operation, and miniaturized packaging. These regulators feature low dropout voltages and ultra low  
quiescent current compared to conventional LDO regulators. Offered in a 5-terminal small outline  
integrated-circuit SOT-23 package, the TPS770xx series devices are 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 very low — typically 35 mV at 50 mA of load current (TPS77050) — and is directly proportional  
to the load current. Since the PMOS pass element is a voltage-driven device, the quiescent current is ultra low  
(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 ultra low-dropout  
voltage feature and ultra low-power operation  
result in a significant increase in system battery  
operating life.  
TPS77033  
GROUND CURRENT  
vs  
FREE-AIR TEMPERATURE  
22  
21  
20  
19  
18  
17  
16  
15  
The TPS770xx also features a logic-enabled  
sleep mode to shut down the regulator, reducing  
V = 4.3 V  
I
C
= 4.7 µF  
O
quiescent current to 1 µA typical at T = 25°C. The  
J
TPS770xx is offered in 1.2-V, 1.5-V, 1.8-V, 2.5-V,  
2.7-V, 2.8-V, 3.0-V, 3.3-V, and 5-V fixed-voltage  
versions and in a variable version (programmable  
over the range of 1.2 V to 5.5 V).  
I
= 50 mA  
I
O
= 0 mA  
O
–60 –40 –20  
0
20 40 60 80 100 120 140  
T
A
– Free-Air Temperature – °C  
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.  
Copyright 1999, Texas Instruments Incorporated  
PRODUCTION DATA information is 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.  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  

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