TPS7433 - Texas Instruments

TPS7433 200-mA LOW-DROPOUT VOLTAGE REGULATORS

This device is designed to have a fast transient response and be stable with 1-µF capacitors. This combination provides high performance at a reasonable cost. Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 170 mV at an output current of 200-mA for the TPS7433). This LDO family also features a sleep mode; .

Features

a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the quiescent current to less than 1 µA at TJ = 25°C. The TPS74xx is offered in 1.5-V, 1.8-V, 2.5-V, 3-V, and 3.3-V. Output voltage tolerance is specified as a maximum of 3% over line, load, and temperature ranges. The TPS74xx family is available in 8 pin SOIC package. TPS7433 DROPOUT VOLTAGE vs JUNCTION TEMPERATURE 300 VI = 3.2 V 250 IO = 200 mA 200 TPS7418 LOAD TRANSIENT RESPONSE 100 50 di/dt = 200 mA 25 µs CO = 10 µF 0
  –50 ∆ VO
  – Change in Output Voltage
  – mV 150 IO
  – Output Current
  – mA .