TPS75333-EP

 Controlled Baseline One Assembly/Test Site, One Fabrication Site
 Enhanced Diminishing Manufacturing Sources (DMS) Support
 Enhanced Product Change Notification
 Qualification Pedigree†
1.5-A Low-Dropout Voltage Regulator
 Available in 1.5-V, 1.8-V, 2.5-V, 3.3-V, Fixed Output and Adjustable Versions
 Open Drain Power-Good (PG) Status Output (TPS751xxQ)
 Open Drain Power-On Reset With 100-ms Delay (TPS753xxQ)
 Dropout Voltage Typically 160 mV at 1.5 A (TPS75133Q)

 Ultralow 75 A Typical Quiescent Current
 Fast Transient Response
 2% Tolerance Over Specified Conditions For Fixed-Output Versions
 20-Pin TSSOP (PWP) PowerPAD^TM Package
 Thermal Shutdown Protection

Input voltage range‡, V_I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.3 V to 5.5 V
Voltage range at EN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 16.5 V
Maximum PG voltage (TPS751xxQ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.5 V
Maximum RESET voltage (TPS753xxQ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.5 V
Peak output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally limited
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . See dissipation rating tables
Output voltage, V_O (OUTPUT, FB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.5 V
Operating virtual junction temperature range, T_J . . . . . . . . . . . . . . . . . . . . . . 40°C to 125°C
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65°C to 150°C
ESD rating, HBM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 kV

The TPS75333-EP are low dropout regulators with integrated power-on reset and power-good (PG)functions respectively. These devices are capable of supplying 1.5 A of output current with a dropout of 160 mV(TPS75133Q, TPS75333Q). Quiescent current is 75 A at full load and drops down to 1 A when the device is disabled. TPS75333-EP are designed to have fast transient response for larger load current changes.

Because the PMOS device TPS75333-EP behaves as a low-value resistor, the dropout voltage is very low (typically 160 mV at an output current of 1.5 A for the TPS75x33Q) 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 75 A over the full range of output current, 1 mA to 1.5 A). These two key specifications of TPS75333-EP yield a significant improvement in operating life for battery-powered systems.

The TPS75333-EP is enabled when EN is connected to a low level voltage. 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 less than 1A at T_J = 25°C.

For the TPS751xxQ, the power-good terminal (PG) is an active high, open drain output, which can be used to implement a power-on reset or a low-battery indicator.

The RESET (SVS, POR, or power on reset) output of the TPS75333-EP initiates a reset in microcomputer and microprocessor systems in the event of an undervoltage condition. An internal comparator in the TPS75333-EP monitors the output voltage of the regulator to detect an undervoltage condition on the regulated output voltage.When the output reaches 95% of its regulated voltage, RESET goes to a high-impedance state after a 100-ms delay.RESET goes to a logic-low state when the regulated output voltage is pulled below 95% (i.e., over load condition) of its regulated voltage.

The TPS75333-EP is offered in 1.5-V, 1.8-V, 2.5-V and 3.3-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.5 V to 5 V). Output voltage tolerance is specified as a maximum of 2% over line, load, and temperature ranges. The TPS75333-EP are available in 20-pin TSSOP (PWP) packages.