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TPS79730

更新时间： 2024-11-14 22:22:23
品牌 Logo 应用领域
德州仪器 - TI 稳压器输出元件
页数 文件大小 规格书
13页 230K
描述
ULTRALOW-POWER SC70/SOT-323 PACKAGED 10 mA LDO LINEAR REGULATORS WITH POWER GOOD OUTPUT

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TPS79730 数据手册

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TPS79718  
TPS79730  
TPS79733  
Actual Size  
(2,15 mm x 2,3 mm)  
SLVS332B – MARCH 2001 – REVISED JUNE 2001  
ULTRALOW-POWER SC70/SOT-323 PACKAGED 10 mA LDO  
LINEAR REGULATORS WITH POWER GOOD OUTPUT  
element. Because the PMOS pass element behaves as  
FEATURES  
a low-value resistor, the dropout voltage is very low,  
typically 105 mV at 10 mA of load current, and is directly  
proportional to the load current. The quiescent current  
is ultralow (1.2 µA typically) and is stable over the entire  
range of output load current (0 mA to 10 mA). When  
properly configured with a pullup resistor, the PG output  
can be used to implement a power-on reset or low  
battery indicator. The TPS797xx is offered in 1.8-V, 3-V,  
3.3-V fixed options.  
D
D
D
D
D
D
10-mA Low-Dropout Regulator  
Ultralow 1.2-µA Quiescent Current at 10 mA  
5-Pin SC70/SOT-323 (DCK) Package  
Integrated Power Good Output  
Stable With Any Capacitor (>0.47 µF)  
Dropout Voltage Typically 105 mV at 10 mA  
(TPS79733)  
D
Over Current Limitation  
D
–40°C to 85°C Operating Junction  
Temperature Range  
DCK PACKAGE  
(TOP VIEW)  
APPLICATIONS  
1
2
3
5
OUT  
IN  
PG  
D
Battery Powered Microcontrollers and  
Microprocessors  
GND  
DESCRIPTION  
4
NC  
The TPS797xx family of low-dropout (LDO) voltage  
regulatorsoffersthebenefitsoflow-dropoutvoltageand  
ultralow-power operation. The device is stable with any  
capacitor (>0.47 µF). Therefore, implementations of  
this device require very little board space due to the  
miniaturized packaging and potentially small output  
capacitor. In addition, the family includes an integrated  
open drain active-high power good (PG) output.  
Intended for use in microcontroller based,  
battery-powered applications, the TPS797xx family’s  
low dropout and ultralow-powered operation results in  
a significant increase in system battery operating life.  
The small packaging minimizes consumption of board  
space.  
TPS79733  
GROUND CURRENT  
vs  
FREE-AIR TEMPERATURE  
2
1.75  
1.50  
1.25  
1
V = 4.3 V  
= 3.3 V  
= 1 µF  
I
O
V
C
o
I
= 10 mA  
O
0.75  
0.50  
The device is enabled when the applied voltage  
exceeds the minimum input voltage. The usual PNP  
pass transistor has been replaced by a PMOS pass  
–40  
–15  
10  
35  
60  
85  
T
– Free-Air Temperature – °C  
A
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 2001, Texas Instruments Incorporated  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
www.ti.com  
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