Dual Output Voltages for Split-Supply
Applications
3.3-V/Adjustable Output, 3.3 V/1.8 V, and
3.3 V/2.5
Dropout Voltage < 80 mV Max at
IO = 100 mA (3.3-V option)
Low Quiescent Current, Independent of
Load . . . 340 μA Typ Per Regulator
Ultra-Low-Current Sleep State . . . 2 μA Max
Dual Active-Low Reset Signals with 200-ms
Pulse Width
Output Current Range of 0 mA to 750 mA
Per Regulator
28-Pin PowerPAD TSSOP Package

description
The TPS73HD3xx family of dual voltage regulators offers very low dropout voltages and dual outputs in a
compact package. Designed primarily for DSP applications, these devices can be used in any mixed-output
voltage application with each regulator supporting up to 750 mA. Output current can be allocated as desired
between the two regulators and used to power many of todays DSPs. Low quiescent current and very low
dropout voltage assure maximum power usage in battery-powered applications. Texas Instruments PowerPAD
TSSOP package allows use of these devices with any voltage/current combination within the range of the listed
specifications without thermal problems, provided proper device mounting procedures are followed. Separate
inputs allow the designer to configure the source power as desired. Dual active-low reset signals allow resetting
of core-logic and I/O separately. Remote sense/feedback terminals provide regulation at the load. The
TPS73HD3xx are available in 28-pin PowerPAD TSSOP. They operate over a free-air temperature range of
−40°C to 125°C.