TPS76615_15 Datasheet, PDF (1/24 Pages) Texas Instruments – ULTRALOW QUIESCENT CURRENT 250-mA LOW DROPOUT VOLTAGE REGULATORS

TPS76615, TPS76618, TPS76625
TPS76627, TPS76628, TPS76630
TPS76633, TPS76650, TPS76601
www.ti.com................................................................................................................................................. SLVS237C – AUGUST 1999 – REVISED JANUARY 2009
ULTRALOW QUIESCENT CURRENT 250-mA
LOW DROPOUT VOLTAGE REGULATORS
FEATURES
1
•2 250-mA Low Dropout Voltage Regulator
• Available in 1.5 V, 1.8 V, 2.5 V, 2.7 V, 2.8 V,
3.0 V, 3.3 V, 5.0 V Fixed Output and Adjustable
Versions
• Dropout Voltage to 140 mV (Typ) at 250 mA
(TPS76650)
• Ultralow 35-µA Typical Quiescent Current
• 3% Tolerance Over Specified Conditions for
Fixed Output Versions
• Open-Drain Power Good
• 8-Pin SOIC Package
• Thermal Shutdown Protection
DESCRIPTION
This device is designed to have an ultralow quiescent
current and be stable with a 4.7-µF capacitor. This
combination provides high performance at a
reasonable cost.
Because the PMOS device behaves as a low-value
resistor, the dropout voltage is very low (typically 230
mV at an output current of 250 mA for the TPS76650)
and is directly proportional to the output current.
Additionally, since the PMOS pass element is a
voltage-driven device, the quiescent current is very
low and independent of output loading (typically 35
µA over the full range of output current, 0 mA to 250
mA). These two key specifications yield a significant
improvement in operating life for battery-powered
systems. This LDO family also features a sleep
mode; applying a TTL high signal to EN (enable)
shuts down the regulator, reducing the quiescent
current to less than 1 µA (typ).
Power good (PG) is an active high output that can be
used to implement a power-on reset or a low-battery
indicator.
The TPS766xx is offered in 1.5 V, 1.8 V, 2.5 V, 2.7 V,
2.8 V, 3.0 V, 3.3 V and 5.0 V fixed voltage versions
and in an adjustable version (programmable over the
range of 1.25 V to 5.5 V). Output voltage tolerance is
specified as a maximum of 3% over line, load, and
temperature ranges. The TPS766xx family is
available in an 8-pin SOIC package.
1
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Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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2
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.
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