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TC2014

Microchip Technology
Part Number TC2014
Manufacturer Microchip Technology
Description 50 mA / 100 mA / 150 mA CMOS LDOs
Published May 22, 2005
Detailed Description M Features • • • • • • • • • • • TC2014/2015/2185 General Description The TC2014, TC2015 and TC2185 are high-accuracy (...
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TC2014
TC2014

Overview
M Features • • • • • • • • • • • TC2014/2015/2185 General Description The TC2014, TC2015 and TC2185 are high-accuracy (typically ±0.
4%) CMOS upgrades for bipolar low dropout regulators, such as the LP2980.
Total supply current is typically 55 µA; 20 to 60 times lower than in bipolar regulators.
The key features of the device include low noise operation (plus bypass reference), low dropout voltage – typically 45 mV for the TC2014, 90 mV for the TC2015, and 140 mV for the TC2185, 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 also incorporate over-current protection.
The TC2014, TC2015 and TC2185 are stable with an output capacitor of 1 µF and have a maximum output current of 50 mA, 100 mA and 150 mA, respectively.
For higher output versions, see the TC1107 (DS21356), TC1108 (DS21357) and TC1173 (DS21362) (IOUT = 300 mA) datasheets.
50 mA, 100 mA, 150 mA CMOS LDOs with Shutdown and Reference Bypass 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) Over-Current Protection Space-Saving 5-Pin SOT-23A Package Pin Compatible Upgrades for Bipolar Regulators Wide Operating Temperature Range: -40°C to +125°C Applications • • • • • • • Battery Operated Systems Portable Computers Medical Instruments Instrumentation Cellular / GSM / PHS Phones Linear Post-Regulator for SMPS Pagers Related Literature • Application Notes: AN765, AN766, AN776 and AN792 Typical Application VIN + 1 1 µF VIN VOUT 5 + 1 µF VOUT Package Type 5-Pin SOT-23A VOUT 5 Bypass 4 TC2014 TC2015 TC2185 1 VIN 2 3 3 SHDN Bypass 4 0.
01 µF Reference Bypass Cap (Optional) Shutdown Control (from Power Control Logic) 2 GND TC2014 TC2015 TC2185 GND SHDN  2003 Microchip Tech...


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