1FEATURES
• 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
• Stable With Any Type/Value Output Capacitor
• ±2% Output Voltage Tolerance Over Line,
Load, and Temperature (–40°C to +125°C)
• Integrated Supervisor (SVS) With 200-ms
RESET Delay Time
• Low 170-mV Dropout Voltage at 1 A
(TPS72625)
• Low 210-mA Ground Current at Full Load
• Less than 1-mA Standby Current
• Integrated UVLO with Thermal and
Overcurrent Protection
• 5-Lead SOT223 or DDPAK Surface-Mount
Package

APPLICATIONS
• 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:
– TMS320vC5501
– TMS320vC5502

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
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 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 μA at
full load and drops to less than 80 μA at no load.
Standby current is less than 1 μA.
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 or
DDPAK package. The TPS726126 is available in a
SOT223 package only.