Description

The CA3277 is a Dual 5V Voltage Regulator IC intended for microprocessor and logic controller applications. It is supplied with features that are commonly specified for sequentially controlled shutdown and startup requirements of microcontrollers. Over-voltage shutdown, short circuit current limiting and thermal shutdown features are provided for protection in the harsh environmental applications of industrial and automotive systems. The CA3277 functions are complementary to the needs of microcontroller and memory circuits, providing for sustained memory with a 5V standby output.

Features

• Dual 5V Regulator

    - VOUT1 at 5V 100mA - Standby

    - VOUT2 at 5V 100mA - Enabled

    - Regulation Range 6V to 18V

    - Bandgap Voltage References

• Low Quiescent Idle Current, 500µA Typ.

• Over-Voltage Shutdown Protection, 20.5V Typ.

• Reverse Battery Protection, -26V Max.

• Thermal Shutdown Protection

• Short Circuit Current Limiting

• Low Input P.S. Flag and Delayed Reset Control

• Low Voltage Shutdown Control, Ouput1

• Ignition Comparator Logic Level Control

• Data Comparator and 100X Current Mult. Used as Input/Output Buffers for Remote Serial Data Communication

Applications

• Automotive 5V Regulators and Data Buffers

• Industrial Controller Remote System

• Microcontroller and Memory Power Supply

• Radio, TV, CATV, Consumer Applications