TLV717xx
TLV717xxP
www.ti.com
SBVS176A –OCTOBER 2011–REVISED APRIL 2012
150-mA, Low-Dropout Regulator with Foldback Current Limit for Portable Devices
Check for Samples: TLV717xx, TLV717xxP
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FEATURES
DESCRIPTION
The TLV717xx series of low-dropout (LDO) linear
regulators are low quiescent current LDOs with
excellent line and load transient performance and are
designed for power-sensitive applications. These
devices provide a typical accuracy of 0.5%.
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Very Low Dropout: 215 mV at 150 mA
Accuracy: 0.5% (typical)
Low IQ: 35 µA
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Available in Fixed-Output Voltages:
1.2 V to 5.0 V(1)
The TLV717xx series offer current foldback that
throttles down the output current with a decrease in
load resistance. The typical value at which current
foldback initiates is 350 mA; the typical value of the
output short current limit value is 40 mA.
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High PSRR:
–
–
70 dB at 1 kHz
50 dB at 1 MHz
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Stable with Effective Output Capacitance:
0.1 µF(2)
Furthermore, these devices are stable with an
effective output capacitance of only 0.1 µF. This
feature enables the use of cost-effective capacitors
that have higher bias voltages and temperature
derating. The devices regulate to specified accuracy
with no output load.
Foldback Current Limit
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(1)
Package: 1-mm × 1-mm DQN
See the Package Option Addendum at the end of this
document for a complete list of available voltage options.
(2)
The TLV717xx series is available in a 1-mm × 1-mm
DQN package that makes them ideal for hand-held
applications. The TLV717xxP provides an active pull-
down circuit to quickly discharge output loads.
See the Input and Output Capacitor Requirements section in
the Application Information for more details.
APPLICATIONS
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Wireless Handsets, Smart Phones, PDAs
MP3 Players
Typical Application Circuit
VIN
VOUT
IN
OUT
Other Hand-Held Products
1 mF
CIN
COUT
Ceramic
TLV717xx
TLV717xx Series
1-mm x 1-mm DQN
(Bottom View)
On
EN
Off
EN
IN
GND
GND
OUT
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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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 © 2011–2012, Texas Instruments Incorporated