Microchip Technology MCP1781 Evaluation Board (EV78D55A)
Microchip Technology MCP1781 Evaluation Board (EV78D55A) was developed to showcase the MCP1781 device’s performance over a wide input voltage range and load current range. The board comes with both the 3.3V and 5V MCP1781 output voltage options, and access is given to the input and output pins, the SHDN pin, the PWG pin, and the Ground pin. The MCP1781 powers ON when the input voltage is at least 2.75V, and the voltage on the SHDN pin exceeds 1.13V. The device can be turned OFF by asserting the SHDN voltage below 0.79V.
The user can experiment with different types and values of capacitors by replacing the existing ones. The Microchip Technology MCP1781 Evaluation Board (EV78D55A) is available in both MCP1781 package types, allowing testing of power dissipation for each type.
Features
- 200mA output current capability (typ.)
- AEC-Q100 automotive qualified (Grade 0, PPAP capable)
- 4.3V to 55V wide input voltage range with a 2.75V (typ.) Under Voltage Lock Out (UVLO)
- -40°C to +150°C extended operating temperature range
- Standard output regulated voltages (VR) of 3.3V and 5.0V with a tolerance ±2.0% over temperature
- 1.3V to 5V adjustable output voltage range
- Open drain Power Good pin for LDO output
- Low 34µA (typ.) quiescent supply current
- Low 3.5µA (typ.) shutdown quiescent supply current
- Short circuit current foldback protection
- Thermal shutdown protection of +164°C
- Stable with a 3.3µF ceramic output capacitor
Applications
- Automotive electronics
- Body control modules
- Instrument clusters
- Infotainment systems
- Always-on battery applications (door modules, remote keyless entry, and immobilizer)
- High-voltage battery packs for power tools, E-mobility for up to 10S battery packs
Kit Contents
- MCP1781 evaluation board (EV78D55A) PCB
- Important information sheet
Board Layout
