TPS75433Q

TPS752xxQ TPS754xxQ www.ti.com SLVS242C – MARCH 2000 – REVISED OCTOBER 2007 TPS752xxQ with RESET Output, TPS754xxQ with Power Good Output FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS FEATURES 1 23 2-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-On Reset With 100ms Delay (TPS752xxQ) Open Drain Power-Good (PG) Status Output (TPS754xxQ) Dropout Voltage Typically 210 mV at 2 A (TPS75233Q) Ultralow 75-μA Typical Quiescent Current Fast Transient Response 2% Tolerance Over Specified Conditions for Fixed-Output Versions 20-Pin TSSOP PowerPAD™ (PWP) Package Thermal Shutdown Protection APPLICATIONS Telecom Servers DSP, FPGA Supplies DESCRIPTION The TPS752xxQ and TPS754xxQ devices are low-dropout regulators with integrated power-on reset and power-good (PG) functions respectively. These devices are capable of supplying 2 A of output current with a dropout of 210 mV (TPS75233Q, TPS75433Q). Quiescent current is 75 μA at full load and drops down to 1 μA when the device is disabled. These devices are designed to have fast transient response for larger load current changes. Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 210 mV at an output current of 2 A for the TPS75x33Q) and is directly proportional to the output current. Additionally, because the PMOS pass element is a voltage-driven device, the quiescent current ...