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1-A Output Current
Available in 1.5-V, 1.6-V, 1.8-V, 2.5-V
Fixed-Output (For Adjustable Versions Refer
to TPS72501)
Input Voltage Down to 1.8 V
Low 170-mV Dropout Voltage at 1 A
(TPS72625)
Stable With Any Type/Value Output Capacitor
Integrated Supervisor (SVS) With 200-ms
RESET Delay Time
Low 210-碌A(chǔ) Ground Current at Full Load
(TPS72625)
Less than 1-碌A(chǔ) Standby Current
鹵2%
Output Voltage Tolerance Over Line,
Load, and Temperature (-40擄C to 125擄C)
Integrated UVLO
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 are ideal for higher current appli-
cations. The family operates over a wide range of
input voltages (1.8 V to 6 V) and has very low
dropout (170 mV at 1-A).
Ground current is typically 210 碌A(chǔ) at full load and
drops to less than 80 碌A(chǔ) at no load. Standby current
is less than 1 碌A(chǔ).
Each regulator option is available in either a
SOT223-5 or DDPAK package. With a low input
voltage and properly heatsinked package, the regu-
lator dissipates more power and achieves higher
efficiencies than similar regulators requiring 2.5 V or
more minimum input voltage and higher quiescent
currents. These features make it a viable power
supply solution for portable, battery powered equip-
ment.
Although an output capacitor is not required for
stability, transient response and output noise are
improved with a 10-碌F output capacitor.
Unlike some regulators that have a minimum current
requirement, the TPS726 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.
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APPLICATIONS
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PCI Cards
Modem Banks
Telecom Boards
DSP, FPGA, and Microprocessor Power
Supplies
Portable, Battery-Powered Applications
DCQ PACKAGE
SOT223-5
(TOP VIEW)
ENABLE
IN
GND
OUT
RESET
1
2
3
4
5
1 2 3 4 5
KTT PACKAGE
DDPAK
(TOP VIEW)
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.
ENABLE
IN
GND
OUT
RESET
Copyright 漏 2002鈥?004, Texas Instruments Incorporated
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