The TLE4678 is a monolithic integrated low dropout fixed output voltage regulator for loads up to 200 mA. An input voltage of up to 45 V is regulated to an output voltage of 5 V. The integrated reset and watchdog function, as well as several protection circuits, combined with a wide operating temperature range offered by the TLE4678 make it suitable for supplying microprocessor systems in automotive environments.The watchdog circuitry will be disabled in case the output current drops below a programmable threshold, enabling a microcontroller to switch in stand-by mode. Modifying the reset threshold is possible by an optional resistor divider. The TLE4678 is available in a PG-DSO-14 package which makes it pin-compatible to the TLE4278 as well as in a small thermally enhanced PG-SSOP-14 exposed pad package.
Feature
- Output Voltage 5 V ± 2%
- Current Capability 200 mA
- Ultra Low Current Consumption
- Very Low Dropout Voltage
- Watchdog Circuit for Monitoring a Microprocessor with Programmable Load-dependent Activating Threshold
- Reset Circuit Sensing the Output Voltage with Programmable Switching Threshold and Delay Time
- Reset Output Active Low Down to V Q = 1 V
- Separated Reset and Watchdog Output
- Excellent Line Transient Robustness
- Maximum Input Voltage -42 V ≤ V I ≤ +45 V
- Reverse Polarity Protection
- Short Circuit Protected
- Overtemperature Shutdown
- Automotive Temperature Range -40 °C ≤ T j ≤ 150 °C
- Available in a small thermally enhanced PG-SSOP-14 package
- Green Product (RoHS Compliant)
- AEC Qualified
- Robust Protection Features
- Wide Input Operation and Temperature Range
Applications
- Automotive General
