TPS79850-Q1 Datasheet | Texas Instruments

Features - 1 Qualified for Automotive Applications - Wide Input Voltage Range: 3 V to 50 V - Low Quiescent Current: 40 μA (Typical) - Low Dropout Voltage: 300 m V (Typical) - Output Current: 50 m A - No Input Protection Diodes Needed - Adjustable Output From 1.275 V to 28 V - 1-μA Quiescent Current in Shutdown - Stable With 1-μF Output Capacitor - Stable With Aluminum, Tantalum, or Ceramic Capacitors - Reverse Input-Battery Protection - Reverse Output Current Flow Protection - Thermal Limiting - Available in an 8-Pin MSOP-Power PAD IC Package 2 Applications - Low-Current, High-Voltage Regulators - Regulators for Battery-Powered Systems - Tele - Automotives 3 Description The TPS798xx-Q1 is the first device in a line of 50-V high-voltage micropower low-dropout (LDO) linear regulators. This device is capable of supplying 50-m A output current with a dropout voltage of only 300 m V. Designed for low quiescent current high voltage (50 V) applications, 40 μA operating and 1 μA in shutdown makes the TPS798xx-Q1 an ideal choice for battery-powered or high-voltage systems. Quiescent current is also well-controlled in dropout. Other features of the TPS798xx-Q1 include the ability to operate with low equivalent series resistance (ESR) ceramic output capacitors. This device is stable with only 1 μF on the output; most older devices require from 10-μF to 100-μF tantalum capacitors for stability. Small ceramic capacitors can be used without the necessary addition of ESR, as is mon with other regulators. Internal protection circuitry includes reverse input-battery protection, reverse output current protection, current limiting, and thermal limiting to protect the device in various fault conditions. This device is available in a fixed output voltage of 5 V (TPS79850) and with an adjustable output voltage with a 1.275-V reference voltage (TPS79801). The TPS798xx-Q1 regulator is available in a 8-pin MSOPPower PAD (DGN) package with an exposed pad for enhanced thermal management...