TPS715xx
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SLVS338L–MAY 2001–REVISED SEPTEMBER 2005
50 mA, 24 V, 3.2 µA Supply Current
Low-Dropout Linear Regulator in SC70 Package
FEATURES
APPLICATIONS
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Ultra Low Power Microcontrollers
Cellular/Cordless Handsets
Portable/Battery-Powered Equipment
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24-V Maximum Input Voltage
Low 3.2-µA Quiescent Current at 50 mA
Stable With Any Capacitor (≥ 0.47 µF)
50-mA Low-Dropout Regulator
DESCRIPTION
Available in 1.8 V, 1.9 V, 2.3 V, 2.5 V, 3.0 V, 3.3
V, 3.45 V, 5.0 V, and Adjustable (1.2 V to 15 V)
The TPS715xx low-dropout (LDO) voltage regulators
offer the benefits of high input voltage, low-dropout
voltage, low-power operation, and miniaturized
packaging. The devices, which operate over an input
range of 2.5 V to 24 V, are stable with any capacitor
(≥ 0.47 µF). The low dropout voltage and low
quiescent current allow operations at extremely low
power levels. Therefore, the devices are ideal for
powering battery management ICs. Specifically, since
the devices are enabled as soon as the applied
voltage reaches the minimum input voltage, the
output is quickly available to power continuously
operating battery charging ICs.
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Designed to Support MSP430 Families:
– 1.9 V version ensured to be higher than
minimum VIN of 1.8 V
– 2.3 V version ensured to meet 2.2 V
minimum VIN for FLASH on MSP430F2xx
– 3.45 V version ensured to be lower than
maximum VIN of 3.6 V
– Wide variety of fixed output voltage options
to match VIN to the minimum required for
desired MSP430 speed
The usual PNP pass transistor has been replaced by
a PMOS pass element. Because the PMOS pass
element behaves as a low-value resistor, the low
dropout voltage, typically 415 mV at 50 mA of load
current, is directly proportional to the load current.
The low quiescent current (3.2 µA typically) is stable
over the entire range of output load current (0 mA to
50 mA).
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Minimum/Maximum Specified Current Limit
5-Pin SC70/SOT-323 (DCK) Package
-40°C to +125°C Specified Junction
Temperature Range
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For 80mA Rated Current and Higher Power
Package, see TPS715Axx
DCK PACKAGE
(TOP VIEW)
TPS715xx
OUT
IN
MSP430
GND
FB/NC
GND
NC
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2
5
OUT
IN
Solar
Cell
3
4
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.
All trademarks are the property of their respective owners.
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 © 2001–2005, Texas Instruments Incorporated