TC1054/TC1055/TC1186 50 mA, 100 mA and 150 mA CMOS LDOs with Shutdown and ERROR Output Features General Description Low Ground Current for Longer Battery Life The TC1054, TC1055 and TC1186 are high accuracy (typically 0.5%) CMOS upgrades for older (bipolar) Low Dropout Voltage low dropout regulators. Designed specifically for Choice of 50 mA (TC1054), 100 mA (TC1055) battery-operated systems, the devices CMOS and 150 mA (TC1186) Output construction minimizes ground current, extending High Output Voltage Accuracy battery life. Total supply current is typically 50 A at full Standard or Custom Output Voltages: load (20 to 60 times lower than in bipolar regulators). - 1.8V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 3.0V, The devices key features include low noise operation, 3.3V, 3.6V, 4.0V, 5.0V low dropout voltage typically 85mV (TC1054), Power-Saving Shutdown Mode 180 mV (TC1055) and 270 mV (TC1186) at full load ERROR Output Can Be Used as a Low-Battery and fast response to step changes in load. An error Detector or Microcontroller-Reset Generator output (ERROR) is asserted when the devices are out-of-regulation (due to a low input voltage or Overcurrent and Overtemperature Protection excessive output current). ERROR can be used as a 5-Pin SOT-23 Package low battery warning or as a processor RESET signal Pin-Compatible Upgrades for Bipolar Regulators (with the addition of an external RC network). Supply current is reduced to 0.5A (maximum), with both Applications V and ERROR disabled when the shutdown input is OUT low. The devices incorporate both overtemperature Battery Operated Systems and over-current protection. Portable Computers The TC1054, TC1055 and TC1186 are stable with an Medical Instruments output capacitor of only 1 F, and have a maximum Instrumentation output current of 50mA, 100mA and 150mA, Cellular/GSM/PHS Phones respectively. For higher output current regulators, Linear Post-Regulators for SMPS please refer to the TC1173 (I = 300 mA) data sheet OUT Pagers (DS21632). Typical Application Package Type 5-Pin SOT-23 V 1 5 OUT ERROR V V V V OUT IN IN OUT + TC1054 5 4 1F TC1055 TC1186 TC1054 2 GND 1M TC1055 TC1186 3 4 1 23 ERROR ERROR SHDN V GND SHDN IN Note: 5-Pin SOT-23 is equivalent to the EIAJ (SC-74A) Shutdown Control (from Power Control Logic) 2002-2012 Microchip Technology Inc. DS21350E-page 1TC1054/TC1055/TC1186 Notice: Stresses above those listed underAbsolute 1.0 ELECTRICAL Maximum Rating may cause permanent damage to CHARACTERISTICS the device. These are stress ratings only and functional operation of the device at these or any other conditions Absolute Maximum Ratings above those indicated in the operation sections of the specifications is not implied. Exposure to Absolute Input Voltage ..................................................................6.75V Maximum Rating conditions for extended periods may Output Voltage .....................................(-0.3V) to (V + 0.3V) IN affect device reliability. Power Dissipation ......................... Internally Limited (Note 6) Maximum Voltage on Any Pin ...................V +0.3V to -0.3V IN Operating Junction Temperature Range ..-40C <T < +125C J Storage Temperature.....................................-65C to +150C DC CHARACTERISTICS Electrical Specifications: Unless otherwise noted, V =V +1V, I =100 A, C = 3.3 F, SHDN >V , T = +25C. Boldface IN OUT L L IH A type specifications apply for junction temperatures of -40C to +125C. Parameters Sym Min Typ Max Units Conditions Input Operating Voltage V 2.7 6.50 V Note 8 IN Maximum Output Current I 50 mA TC1054 OUTMAX 100 TC1055 150 TC1186 Output Voltage V V 2.5% V 0.5% V + 2.5% V Note 1 OUT R R R V Temperature TCV 20 ppm/C Note 2 OUT OUT Coefficient 40 Line Regulation V / V 0.05 0.35 %(V + 1V) V 6V OUT IN R IN Load Regulation TC1054 TC1055 V /V 0.5 2 %(Note 3) OUT OUT I = 0.1 mA to I L OUTMAX TC1186 0.5 3 Note 1: V is the regulator output voltage setting. For example: V = 1.8V, 2.5V, 2.7V, 2.85V, 3.0V, 3.3V, 3.6V, R R 4.0V, 5.0V. 6 2: TC V = (V V )x 10 OUT OUTMAX OUTMIN V x T OUT 3: Regulation is measured at a constant junction temperature using low-duty-cycle pulse testing. Load regu- lation is tested over a load range from 0.1 mA to the maximum specified output current. Changes in output voltage due to heating effects are covered by the thermal regulation specification. 4: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value. 5: Thermal Regulation is defined as the change in output voltage at a time T after a change in power dissipa- tion is applied, excluding load or line regulation effects. Specifications are for a current pulse equal to I LMAX at V = 6V for T = 10 ms. IN 6: The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction temperature and the thermal resistance from junction-to-air (i.e., T , T , ). Exceeding the A J JA maximum allowable power dissipation causes the device to initiate thermal shutdown. See Section 5.0 Thermal Considerations for more details. 7: Hysteresis voltage is referenced by V . R 8: The minimum V has to justify the conditions: V V + V and V 2.7V for I = 0.1 mA to IN IN R DROPOUT IN L I . OUTMAX 9: Apply for junction temperatures of -40C to +85C. DS21350E-page 2 2002-2012 Microchip Technology Inc.