TC2054/2055/2186 50 mA, 100 mA, and 150 mA CMOS LDOs with Shutdown and Error Output Features General Description Low Supply Current (55 A Typical) for Longer The TC2054, TC2055 and TC2186 are high accuracy Battery Life (typically 0.4%) CMOS upgrades for older (bipolar) low dropout regulators. Designed specifically for Low Dropout Voltage: 140 mV (Typical) battery-operated systems, the devices total supply 150 mA current is typically 55 A at full load (20 to 60 times High Output Voltage Accuracy: 0.4% (Typical) lower than in bipolar regulators). Standard or Custom Output Voltages The devices key features include low noise operation, Power-Saving Shutdown Mode low dropout voltage typically 45 mV (TC2054) 90 mV ERROR Output Can Be Used as a Low Battery (TC2055) and 140 mV (TC2186) at full load - and fast Detector or Processor Reset Generator response to step changes in load. An error output Fast Shutdown Reponse Time: 60 s (Typical) (ERROR) is asserted when the devices are Overcurrent and Overtemperature Protection out-of-regulation (due to a low input voltage or excessive output current). Supply current is reduced to Space-Saving 5-Pin SOT-23A Package 0.5 A (maximum) and both V and ERROR are OUT Pin Compatible Upgrades for Bipolar Regulators disabled when the shutdown input is low. The devices Standard Output Voltage Options: also incorporate overcurrent and overtemperature - 1.8V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 3.0V, protection. 3.3V, 5.0V The TC2054, TC2055 and TC2186 are stable with a low esr ceramic output capacitor of 1 F and have a Applications maximum output current of 50mA, 100mA and Battery Operated Systems 150 mA, respectively. This LDO Family also features a fast response time (60 s typically) when released from Portable Computers shutdown. Medical Instruments Instrumentation Package Type Cellular / GSMS / PHS Phones Pagers 5-Pin SOT-23A Top View Typical Application V ERROR OUT 4 5 1 5 V V V V IN OUT OUT IN TC2054 1F 1F TC2055 TC2186 2 GND TC2054 1 2 3 TC2055 1M TC2186 V GND SHDN IN 34 SHDN ERROR ERROR Shutdown Control (from Power Control Logic) 2009 Microchip Technology Inc. DS21663D-page 1TC2054/2055/2186 NOTES: DS21663D-page 2 2009 Microchip Technology Inc.