FEATURES
23· Dual Output Voltages for Split-Supply
Applications
· Output Current Range of 0mA to 1.0A per
Regulator
· 3.3V/2.5V, 3.3V/1.8V, and 3.3V/Adjustable
Output
· Fast-Transient Response
· 2% Tolerance Over Load and Temperature
· Dropout Voltage Typically 350mV at 1A
· Ultra-low 85mA Typical Quiescent Current
· 1mA Quiescent Current During Shutdown
· Dual Open-Drain Power-On Reset with 200ms
Delay for Each Regulator
· 28-Pin PowerPAD™ TSSOP Package
· Thermal Shutdown Protection for Each
Regulator

DESCRIPTION
The TPS767D3xx family of dual voltage regulators
offers fast transient response, low dropout voltages
and dual outputs in a compact package and
incorporating stability with 10mF low ESR output
capacitors.
The TPS767D3xx family of dual voltage regulators is
designed primarily for DSP applications. These
devices can be used in any mixed-output voltage
application, with each regulator supporting up to 1A.
Dual active-low reset signals allow resetting of
core-logic and I/O separately.
Because the PMOS device behaves as a low-value
resistor, the dropout voltage is very low (350mV
typically at an output current of 1A for the
TPS767D325) and is directly proportional to the output current. Additionally, since the PMOS pass
element is a voltage-driven device, the quiescent
current is very low and independent of output loading
(typically 85mA over the full range of output current,
0mA to 1A). These two key specifications yield a significant improvement in operating life for
battery-powered systems. This LDO family also
features a sleep mode; applying a TTL high signal to
EN (enable) shuts down the regulator, reducing the quiescent current to 1mA at TJ = +25°C.
The RESET output of the TPS767D3xx initiates a reset in microcomputer and microprocessor systems
in the event of an undervoltage condition. An internal
comparator in the TPS767D3xx monitors the output
voltage of the regulator to detect an undervoltage
condition on the regulated output voltage.
The TPS767D3xx is offered in 1.8V, 2.5V, and 3.3V
fixed-voltage versions and in an adjustable version
(programmable over the range of 1.5V to 5.5V).
Output voltage tolerance is specified as a maximum
of 2% over line, load, and temperature ranges. The
TPS767D3xx family is available in a 28-pin PWP
TSSOP package. They operate over a junction
temperature range of –40°C to +125°C.