1FEATURES

• 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-μA Ground Current at Full Load

(TPS72525)

• Less than 1-μA Standby Current

• ±2% Output Voltage Tolerance Over Line,

Load, and Temperature (-40°C to 125°C)

• Integrated UVLO

• Thermal and Overcurrent Protection

• 5-Lead SOT223-5 or DDPAK and 8-Pin SOP

(TPS72501 only) Surface Mount Package

APPLICATIONS

• PCI Cards

• Modem Banks

• Telecom Boards

• DSP, FPGA, and Microprocessor Power

Supplies

• Portable, Battery-Powered Applications

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

applications. 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 μA at full load and

drops to less than 80 μA at no load. Standby current

is less than 1 μA.

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,

battery-powered equipment.