1 Features

• Qualified for Automotive Applications
• 100-mA Low-Dropout Regulator
• Available in 1.2-V, 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8‑V, 3-V, 3.3-V and 5-V Fixed-Output and Adjustable Versions
• Only 17-µA Quiescent Current at 100 mA
• 1-µA Quiescent Current in Standby Mode
• Dropout Voltage Typically 71 mV at 100 mA
• Overcurrent Limitation
• —40°C to 125°C Operating Junction Temperature Range
• 5-Pin SOT-23 (DBV) Package

2 Applications

• ADAS Modules
• RF Modules
• Wireless Modules
• General Noise-Sensitive Applications

3 Description

The TPS769xx-Q1 family of low-dropout (LDO) voltage regulators offers the benefits of low-dropout voltage, ultralow-power operation, and miniaturized packaging. These regulators feature low-dropout voltages and ultralow quiescent current compared to conventional LDO regulators. Offered in a 5-pin small outline integrated-circuit SOT-23 package, the TPS769xx-Q1 series of devices are ideal for micropower operations and where board space is at a premium.

A combination of new circuit design and process innovation has enabled the usual PNP pass transistor to be replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is very low, typically 71 mV at 100 mA of load current (TPS76950-Q1), and is directly proportional to the load current. Because the PMOS pass element is a voltage-driven device, the quiescent current is ultralow (28 µA maximum) and is stable over the entire range of output load current (0 mA to 100 mA). The ultralow-dropout voltage feature and ultralow-power operation result in a significant increase in system battery operating life, making this device suitable for use in automotive applications.

1. For all available packages, see the orderable addendum at the end of the data sheet.

Functional Block Diagrams

TPS76933-Q1 Ground Current vs Free-Air Temperature