TPS76901_16 Datasheet, PDF (1/24 Pages) Texas Instruments – ULTRALOW-POWER 100-mA LOW-DROPOUT LINEAR REGULATORS

TPS76901, TPS76912, TPS76915, TPS76918, TPS76925
TPS76927, TPS76928, TPS76930, TPS76933, TPS76950
ULTRALOW-POWER 100-mA LOW-DROPOUT LINEAR REGULATORS
SLVS203E – JUNE 1999 – REVISED MAY 2001
D 100-mA Low-Dropout Regulator
D 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
D Only 17 µA Quiescent Current at 100 mA
D 1 µA Quiescent Current in Standby Mode
D Dropout Voltage Typically 71 mV at 100mA
D Over Current Limitation
D –40°C to 125°C Operating Junction
Temperature Range
D 5-Pin SOT-23 (DBV) Package
description
The TPS769xx family of low-dropout (LDO)
voltage regulators offers the benefits of low
dropout voltage, ultralow-power operation, and
miniaturized packaging. These regulators feature
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
TPS769xx series devices are ideal for
micropower operations and where board space is
at a premium.
DBV PACKAGE
(TOP VIEW)
IN
1
5
OUT
GND
2
EN
3
4
NC/FB
TPS76933
GROUND CURRENT
vs
FREE-AIR TEMPERATURE
22
VI = 4.3 V
21 ^{CO = 4.7 µF}
20
19
IO = 100 mA
18
IO = 0 mA
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A combination of new circuit design and process
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innovation has enabled the usual PNP pass
transistor to be replaced by a PMOS pass
element. Because the PMOS pass element
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–60 –40 –20 0 20 40 60 80 100 120 140
behaves as a low-value resistor, the dropout
voltage is very low, typically 71 mV at 100 mA of
TA – Free-Air Temperature – °C
load current (TPS76950), 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 100 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 TPS769xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current
to 1 µA typical at T_J = 25°C. The TPS769xx 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).
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.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright  2001, Texas Instruments Incorporated
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