HomedatasheetTC1072-33VCH

TC1072-33VCH Datasheet

50mA and 100mA CMOS LDOs with Shutdown, ERROR Output and VREF Bypass
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Description

General Description
The TC1072 and TC1073 are high accuracy (typically ±0.5%) CMOS upgrades for older (bipolar) low dropout regulators. Designed specifically for battery-operated systems, the devices’ CMOS construction eliminates wasted ground current, significantly extending battery life. Total supply current is typically 50µA at full load (20 to 60 times lower than in bipolar regulators).
The devices’ key features include ultra low noise operation (plus optional Bypass input); very low dropout voltage (typically 85mV, TC1072 and 180mV, TC1073 at full load) and fast response to step changes in load. An error output (ERROR) is asserted when the devices are out-of-regulation (due to a low input voltage or excessive output current). ERROR can be used as a low battery warning or as a processor RESET signal (with the addition of an external RC network). Supply current is reduced to 0.5µA (max) and both VOUT and ERROR are disabled when the shutdown input is low. The devices incorporate both over-temperature and over-current protection.
The TC1072 and TC1073 are stable with an output capacitor of only 1µF and have a maximum output current of 50mA, and 100mA respectively. For higher output current versions, please see the TC1185, TC1186, TC1187 (IOUT = 150mA) and TC1107, TC1108 and TC1173 (IOUT = 300mA) data sheets.

Features
• Zero Ground Current for Longer Battery Life
• Very Low Dropout Voltage
• Choice of 50mA (TC1072) and 100mA (TC1073) Output
• High Output Voltage Accuracy
• Standard or Custom Output Voltages
• Power-Saving Shutdown Mode
• ERROR Output Can Be Used as a Low Battery
   Detector or Processor Reset Generator
• Bypass Input for Ultra Quiet Operation
• Over Current and Over Temperature Protection
• Space-Saving 6-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

Features

Parameters


Manufacturer information

MICROCHIP TECHNOLOGY

Microchip Technology Inc. is a leading provider of microcontroller, mixed-signal, analog and Flash-IP solutions, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applications worldwide. Headquartered in Chandler, Arizona, Microchip offers outstanding technical support along with dependable delivery and quality.

Microchip Technology Inc. has acquired Atmel.


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