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1-A Output Current
Available in 1.5-V, 1.6-V, 1.8-V, 2.5-V
Fixed-Output and Adjustable Versions
(1.2-V to 5.5-V)
Input Voltage Down to 1.8 V
Low 170-mV Dropout Voltage at 1 A
(TPS72525)
Stable With Any Type/Value Output Capacitor
Integrated Supervisor (SVS) With 50-ms
RESET Delay Time
Low 210-碌A Ground Current at Full Load
(TPS72525)
Less than 1-碌A Standby Current
卤2%
Output Voltage Tolerance Over Line,
Load, and Temperature (-40掳C to 125掳C)
Integrated UVLO
Thermal and Overcurrent Protection
5-Lead SOT223-5 or DDPAK and 8-Pin SOP
(TPS72501 only) Surface Mount Package
DESCRIPTION
The TPS725xx 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. An adjustable option ranging
from 1.22 V to 5.5 V is also available. The integrated
supervisory circuitry provides an active low RESET
signal when the output falls out of regulation. The no
capacitor/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 at full load and
drops to less than 80 碌A at no load. Standby current
is less than 1 碌A.
Each regulator option is available in either a
SOT223-5, D (TPS72501 only), or DDPAK package.
With a low input voltage and properly heatsinked
package, the regulator 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, bat-
tery-powered equipment.
D PACKAGE
(TOP VIEW)
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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/FB
1
2
3
4
5
1 2 3 4 5
KTT PACKAGE
DDPAK
(TOP VIEW)
OUT
FB
GND
NC
1
2
3
4
8
7
6
5
IN
GND
GND
ENABLE
ENABLE
IN
GND
OUT
RESET/FB
NC 鈭?No internal connection
NOTE: TPS72501 replaces RESET with FB. Tab is GND for the DCK and KTT 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?004, Texas Instruments Incorporated
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