General Description

The TC2014, TC2015 and TC2185 are high-accuracy (typically ±0.4%) CMOS upgrades for bipolar Low Drop-out Regulators (LDOs), such as the LP2980. Total supply current is typically 55 µA; 20 to 60 times lower than in bipolar regulators.

Features

• Low Supply Current: 80 µA (Max)

• Low Dropout Voltage: 140 mV (Typ.) @ 150 mA

• High-Output Voltage Accuracy: ±0.4% (Typ.)

• Standard or Custom Output Voltages

• Power-Saving Shutdown Mode

• Reference Bypass Input for Ultra Low-Noise Operation

• Fast Shutdown Response Time: 60 µsec (Typ.)

• Overcurrent and Overtemperature Protection

• Space-Saving 5-Pin SOT-23A Package

• Pin-Compatible Upgrades for Bipolar Regulators

• Wide Operating Temperature Range: -40°C to +125°C

• 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/GSM/PHS Phones

• Linear Post-Regulator for SMPS

• Pagers