TC1070/TC1071/TC1187 50 mA, 100 mA and 150 mA Adjustable CMOS LDOs with Shutdown Features: Description: 50 A Ground Current for Longer Battery Life The TC1070, TC1071 and TC1187 devices are adjustable LDOs designed to supersede a variety of Adjustable Output Voltage older (bipolar) voltage regulators. Total supply current Very Low Dropout Voltage is typically 50 A at full load (20 to 60 times lower than Choice of 50 mA (TC1070), 100 mA (TC1071) in bipolar regulators). and 150 mA (TC1187) Output The devices key features include ultra low-noise Power-Saving Shutdown mode operation, very low dropout voltage typically 85 mV Overcurrent and Overtemperature Protection (TC1070), 180 mV (TC1071) and 270 mV (TC1187) at Space-Saving 5-Pin SOT-23 Package full load and fast response to step changes in load. Pin Compatible with Bipolar Regulators Supply current is reduced to 0.5 A (maximum) when the shutdown input is low. The devices incorporate both overtemperature and overcurrent protection. Output Applications: voltage is programmed with a simple resistor divider Battery Operated Systems to ADJ to GND. from V OUT Portable Computers The TC1070, TC1071 and TC1187 devices are stable Medical Instruments with an output capacitor of only 1F and have a Instrumentation maximum output current of 50mA, 100mA and 150mA, respectively. For higher output versions Cellular/GSM/PHS Phones please see the TC1174 (I = 300 mA) data sheet OUT Linear Post-Regulators for SMPS (DS21363). Pagers Typical Application Package Type 5-Pin SOT-23 1 5 V V V V IN IN OUT OUT V ADJ + OUT TC1070 C1 TC1071 1F 4 TC1187 5 2 GND R1 TC1070 TC1071 3 4 TC1187 SHDN ADJ 132 R2 V GND SHDN IN R1 Shutdown Control V = V -------1+ OUT REF R2 (from Power Control Logic) 2010 Microchip Technology Inc. DS21353E-page 1TC1070/TC1071/TC1187 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 .........................................................6.5V Maximum Rating conditions for extended periods may Output Voltage........................... (-0.3V) to (V + 0.3V) IN affect device reliability. Power Dissipation................Internally Limited (Note 5) Maximum Voltage on Any Pin ........V +0.3V to -0.3V IN Operating Temperature Range...... -40C < T < 125C J Storage Temperature..........................-65C to +150C ELECTRICAL SPECIFICATIONS Electrical Characteristics: V = V + 1V, I = 0.1 mA, C = 3.3 F, SHDN>V , T = +25C, unless otherwise IN OUT L L IH A noted. Boldface type specifications apply for junction temperatures of -40C to +125C. Parameter Symbol Min Typ Max Units Test Conditions Input Operating Voltage V 2.7 6.0 V Note 6 IN Maximum Output Current I 50 mA TC1070 OUTmax 100 TC1071 150 TC1187 Adjustable Output V V 5.5 V OUT REF Voltage Range Reference Voltage V 1.165 1.20 1.235 V REF V Temperature Coefficient V / T 40 ppm/C Note 1 REF REF Line Regulation V / V 0.05 0.35 %(V + 1V) V 6V OUT IN R IN Load Regulation (Note 2) V /V 0.5 2 % TC1070, TC1071 OUT OUT I = 0.1 mA to I L OUTmax 0.53TC1187 I = 0.1 mA to I L OUTmax Note 1: 6 TC V = (V V ) x 10 OUT OUTmax OUTMIN V x T OUT 2: 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. 3: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value. 4: 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 Ilmax at V = 6V for T = 10 ms. IN 5: 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., Ta, Tj, ja). Exceeding the maxi- mum allowable power dissipation causes the device to initiate thermal shutdown. Please see Section 5.0 Thermal Considerations for more details. 6: The minimum VIN has to justify the conditions: V V + V and V 2.7V for I = 0.1 mA to IN R DROPOUT IN L I . OUTMAX DS21353E-page 2 2010 Microchip Technology Inc.