FEATURES
· 3A Low-Dropout Voltage Regulator
· Available in 1.5V, 1.8V, 2.5V, and 3.3V
Fixed-Output and Adjustable Versions
· Dropout Voltage Typically 150mV at 3A
(TPS75833)
· VREF and Pinout Compatible with MIC29302
(TPS758A01)
· Low 125mA Typical Quiescent Current
· Fast Transient Response
· 3% Tolerance Over Specified Conditions for
Fixed-Output Versions
· Available in 5-Pin TO-220 and TO-263
Surface-Mount Packages
· Thermal Shutdown Protection

DESCRIPTION
The TPS758xx family of 3A low dropout (LDO)
regulators contains four fixed voltage option
regulators and an adjustable voltage option
regulator. These devices are capable of supplying 3A
of output current with a dropout of 150mV
(TPS75833). Therefore, the device is capable of
performing a 3.3V to 2.5V conversion.
Quiescent current is 125mA at full load and drops to
less than 1mA when the device is disabled. The
TPS758xx is designed to have fast transient
response for large load current changes.
Because the PMOS device behaves as a low-value
resistor, the dropout voltage is very low (typically
150mV at an output current of 3A for the TPS75833)
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
125mA over the full range of output current). These
two key specifications yield a significant
improvement in operating life for battery-powered
systems.
The device is enabled when EN (enable) is
connected to a high voltage level (> 2V). Applying a
low voltage level (< 0.7V) to EN shuts down the
regulator, reducing the quiescent current to less than
1mA at TJ = +25°C.
The TPS758xx is offered in 1.5V, 1.8V, 2.5V, and
3.3V fixed-voltage versions and in an adjustable
version (programmable over the range of 1.22V to
5V). Output voltage tolerance is specified as a
maximum of 3% over line, load, and temperature
ranges. The TPS758xx family is available in a 5-pin
TO-220 (KC) and TO-263 (KTT) packages.