描述 Description

The TPS740xx is a wide bandwidth, very low-dropout, 1.5-A voltage regulator ideal for powering microprocessors. The TPS740xx uses a bias input supply to allow very low voltage of a main input supply. The main input supply operates from 1.2 V to 6.0 V and the bias input supply requires between 3.0 V to 6.0 V for proper operation. The TPS740xx offers adjustable output voltages down to 0.9 V. The TPS740xx requires a minimum of output capacitance. A small 2.2-μF ceramic capacitor is enough for its stability. The TPS740xx is available in an 8-pin power MSOP package and a 5-pin Jr S-PAK. Its operating temparature range is –40°C to +125°C.

特性 Features

? Small Consumption Current: 3 mA Maximum
? Input Voltage Range:
? VIN: 1.2 V to 6.0 V
? VBIAS: 2.9 V to 6.0 V

? Stable with Any Output Capacitance: ≥ 2.2 μF
? ±1% Initial Accuracy
? Maximum Dropout Voltage (VIN – VOUT): 300 mV Over Temperature
? Adjustable Output Voltage: Down to 0.9 V
? Ultra-Fast Transient Response
? Excellent Line and Load Regulation
? Logic-Controlled Shutdown Option
? Thermal Shutdown and Current Limit Protection
? Power 8-Pin Mini Small-Outline Package (MSOP) and Jr S-PAK packages.
? Junction Temperature Range: –40°C to +125°C