TLV717XX Datasheet, PDF (1/23 Pages) Texas Instruments – 150-mA, Low-Dropout Regulator with Foldback Current Limit for Portable Devices

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
FEATURES
1
•2 Very Low Dropout: 215 mV at 150 mA
• Accuracy: 0.5% (typical)
• Low I_Q: 35 µA
• Available in Fixed-Output Voltages:
1.2 V to 5.0 V⁽¹⁾
• High PSRR:
– 70 dB at 1 kHz
– 50 dB at 1 MHz
• Stable with Effective Output Capacitance:
0.1 µF⁽²⁾
• Foldback Current Limit
• Package: 1-mm × 1-mm DQN
(1) _{See the Package Option Addendum at the end of this}
document for a complete list of available voltage options.
(2) _{See the Input and Output Capacitor Requirements section in}
the Application Information for more details.
APPLICATIONS
• Wireless Handsets, Smart Phones, PDAs
• MP3 Players
• Other Hand-Held Products
TLV717xx
1-mm x 1-mm DQN
(Bottom View)
EN
IN
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%.
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.
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.
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.
Typical Application Circuit
V_IN
C_IN
On
Off
IN
OUT
C_OUT
TLV717xx Series
V_OUT
1 mF
Ceramic
EN
GND
GND OUT
1
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Texas 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.
Copyright © 2011–2012, Texas Instruments Incorporated