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TC1224-50VCTTR Fiches technique(PDF) 1 Page - Microchip Technology |
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TC1224-50VCTTR Fiches technique(HTML) 1 Page - Microchip Technology |
1 / 14 page © 2002 Microchip Technology Inc. DS21368B-page 1 TC1223/TC1224 Features • Extremely Low Ground Current for Longer Battery Life • Very Low Dropout Voltage • Choice of 50mA and 100mA Output (TC1223, TC1224, Respectively) • High Output Voltage Accuracy • Standard or Custom Output Voltages • Power Saving Shutdown Mode • Over Current and Over Temperature Protection • Space-Saving 5-Pin SOT-23A Package • Pin Compatible Upgrades for Bipolar Regulators Applications • Battery Operated Systems • Portable Computers • Medical Instruments • Instrumentation • Cellular/GSM/PHS Phones • Linear Post-Regulators for SMPS • Pagers Device Selection Table NOTE: xx indicates output voltages Available Output Voltages: 2.5, 2.7, 2.8, 2.85, 3.0, 3.3, 3.6, 4.0, 5.0. Other output voltages are available. Please contact Microchip Technology Inc. for details. Package Type General Description The TC1223 and TC1224 are high accuracy (typically ±0.5%) CMOS upgrades for older (bipolar) low dropout regulators such as the LP2980. Designed specifically for battery-operated systems, the devices’ CMOS construction eliminates wasted ground current, significantly extending battery life. Total supply current is typically 50 µA at full load (20 to 60 times lower than in bipolar regulators). The devices’ key features include ultra low noise operation; very low dropout voltage (typically 85mV, TC1223 and 180mV, TC1224 at full load) and fast response to step changes in load. Supply current is reduced to 0.5 µA (max) and VOUT falls to zero when the shutdown input is low. The devices incorporate both over temperature and over current protection. The TC1223 and TC1224 are stable with an output capacitor of only 1 µF and have a maximum output current of 50mA and 100mA respectively. For higher output current versions, please see the TC1107, TC1108 and TC1173 (IOUT = 300mA) data sheets. Typical Application Part Number Package Junction Temp. Range TC1223-xxVCT 5-Pin SOT-23A -40°C to +125°C TC1224-xxVCT 5-Pin SOT-23A -40°C to +125°C 5-Pin SOT-23A SHDN 5 TC1223 TC1224 13 4 2 VIN VOUT GND NC NOTE: 5-Pin SOT-23A is equivalent to the EIAJ (SC-74A) TC1223 TC1224 VOUT SHDN GND NC 1 µF + VIN VIN VOUT 1 5 2 4 3 Shutdown Control (from Power Control Logic) 50mA and 100mA CMOS LDOs with Shutdown |
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