MICROCHIP TC1300R-2.8VUA

The TC1300 combines a low dropout regulator and a microcontroller reset monitor in an 8-Pin MSOP package. Total supply current is 80 μA (typical), 20 to 60 times lower than bipolar regulators. The TC1300 has a precise output with a typical accuracy of ±0.5%. Other key features include low noise operation, low dropout voltage and internal feedforward compensation for fast response to step changes in load. The TC1300 has both over-temperature and over-current protection. When the shutdown control (SHDN) is low, the regulator output voltage falls to zero, RESET output remains valid and supply current is reduced to 30 μA (typical). The TC1300 is rated for 300 mA of output current and stable with a 1 μF output capacitor. An active-low RESET is asserted when the detected voltage (VDET) falls below the reset voltage threshold. The RESET output remains low for 300 msec (typical) after VDET rises above reset threshold. The TC1300 also has a fast wake-up response time (10 μsec, typical) when released from shutdown.

• LDO with Integrated Microcontroller Reset Monitor Functionality
• Low Input Supply Current (80 μA, typical)
• Very Low Dropout Voltage
• 10 μsec (typ.) Wake-Up Time from SHDN
• 300 mA Output Current
• Standard or Custom Output and Detected Voltages
• Power-Saving Shutdown Mode
• Bypass Input for Quiet Operation
• Separate Input for Detected Voltage
• 140 msec Minimum RESET Output Duration
• Space-Saving MSOP Package
• Specified Junction Temperature Range: -40°C to +125°C

• Battery-Operated Systems
• Portable Computers
• Medical Instruments
• Pagers
• Cellular / GSM / PHS Phones