鈥?/div>
1-A Low-Dropout Regulator Supports Input
Voltages Down to 1.8-V
Available in 1.26-V, 1.5-V, 1.6-V, 1.8-V, 2.5-V,
and Adjustable (1.22-V to 5.5-V)
Stable With Any Type/Value Output Capacitor
卤2% Output Voltage Tolerance Over Line,
Load, and Temperature (鈥?0掳C to 125掳C)
Integrated Supervisor (SVS) With 200-ms
RESET Delay Time
Low 170-mV Dropout Voltage at 1 A
(TPS72625)
Low 210-碌A Ground Current at Full Load
Less than 1-碌A Standby Current
Integrated UVLO with Thermal and
Overcurrent Protection
5-Lead SOT223-5 or DDPAK Surface-Mount
Package
DESCRIPTION
The TPS726xx family of 1-A low-dropout (LDO) linear
regulators has fixed voltage options available that are
commonly used to power the latest DSPs, FPGAs,
and microcontrollers. The integrated supervisory
circuitry provides an active low RESET signal when
the output falls out of regulation. The no capaci-
tor/any capacitor feature allows the customer to tailor
output transient performance as needed. Therefore,
compared to other regulators capable of providing the
same output current, this family of regulators can
provide a stand alone power supply solution or a post
regulator for a switch mode power supply.
These regulators operate over a wide range of input
voltages (1.8 V to 6 V) and have very low dropout
(170 mV at 1-A). Ground current is typically 210 碌A at
full load and drops to less than 80 碌A at no load.
Standby current is less than 1 碌A.
Unlike some regulators that have a minimum current
requirement, the TPS726xx family is stable with no
output load current. The low noise capability of this
family, coupled with its high current operation and
ease of power dissipation, make it ideal for telecom
boards, modem banks, and other noise sensitive
applications.
The TPS726xx is available in either a SOT223-5 or
DDPAK package. The TPS726126 is available in a
SOT223-5 package only.
DCQ PACKAGE
SOT223-5
(TOP VIEW)
ENABLE
IN
GND
OUT
RESET
1
2
3
4
5
APPLICATIONS
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鈥?/div>
PCI Cards
Modem Banks and Telecom Boards
DSP, FPGA, and Microprocessor Power
Supplies
Portable, Battery-Powered Applications
1.26-V Core Voltage for the Following DSPs:
鈥?TMS320vC5501
鈥?TMS320vC5502
KTT PACKAGE
DDPAK
(TOP VIEW)
1 2 3 4 5
Note: Tab is GND for both packages
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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 漏 2002鈥?005, Texas Instruments Incorporated
ENABLE
IN
GND
OUT
RESET
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