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General Description

The TC2054, TC2055 and TC2186 are high accuracy (typically ±0.4) CMOS upgrades for older (bipolar) low dropout regulators. Designed specifically for battery-operated systems, the devices’ total supply current is typically 55 ?A at full load (20 to 60 times lower than in bipolar regulators).

The TC2054, TC2055 and TC2186 are stable with a low esr ceramic output capacitor of 1 ?F and have a maximum output current of 50 mA, 100 mA and 150 mA, respectively. This LDO Family also features a fast response time (60 ?s typically) when released from shutdown.

Features

? Low Supply Current (55 ?A Typical) for Longer Battery Life

? Low Dropout Voltage: 140 mV (Typical) @ 150 mA

? High Output Voltage Accuracy: ±0.4 (Typical)

? Standard or Custom Output Voltages

? Power-Saving Shutdown Mode

? ERROR Output Can Be Used as a Low Battery

Detector or Processor Reset Generator

? Fast Shutdown Reponse Time: 60 ?s (Typical)

? Overcurrent and Overtemperature Protection

? Space-Saving 5-Pin SOT-23A Package

? Pin Compatible Upgrades for Bipolar Regulators

? Standard Output Voltage Options:

- 1.8V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 3.0V, 3.3V, 5.0V

Applications

? Battery Operated Systems

? Portable Computers

? Medical Instruments

? Instrumentation

? Cellular / GSMS / PHS Phones

? Pagers