Texas Instruments TPS763/TPS763-Q1 LDO Voltage Regulators

Texas Instruments TPS763/TPS763-Q1 Low-Dropout (LDO) Voltage Regulators offer the benefits of low-power operation, low-dropout voltage, and miniaturized packaging. These regulators feature low quiescent currents and dropout voltages compared to conventional LDO regulators. The TPS763/TPS763-Q1 is offered in a 5-pin, small outline integrated-circuit SOT-23 package and is ideal for applications where board space is at a premium or for cost-sensitive designs.

A combination of process innovation and new circuit design has replaced the usual PNP pass transistor with a PMOS pass element. The PMOS pass element behaves as a low-value resistor, so the dropout voltage is directly proportional to the load current and is low (typically 300mV at 150mA of load current (TPS76333/TPS76333-Q1)). The quiescent current is low (140µA maximum) and is stable over the entire range of output load current (0mA to 150mA) because the PMOS pass element is a voltage-driven device. Intended for use in portable systems such as cellular phones and laptops, the low-dropout voltage feature and low-power operation significantly increase system battery operating life.

The Texas Instruments TPS763/TPS763-Q1 includes a logic-enabled sleep mode to shut down the regulator and reduce quiescent current to 1µA maximum at TJ = 25°C. The TPS763/TPS763-Q1 is offered in 1.6V, 1.8V, 2.5V, 2.7V, 2.8V, 3V, 3.3V, 3.8V, and 5V fixed-voltage versions and a variable version (programmable over the range of 1.5V to 6.5V). The TPS763-Q1 devices are AEC-Q100 qualified for automotive applications.

Features

150mA, low-dropout regulator
Output voltages are available in 5V, 3.8V, 3.3V, 3V, 2.8V, 2.7V, 2.5V, 1.8V, 1.6V (fixed) and 1.5V to 6.5V (variable)
Dropout voltage is typically 300mV at 150mA
Thermal protection