MAX40203ANS+

OR Controllers, Ideal Diodes Overview

The MAX40203ANS+T is a low-current ideal diode OR controller manufactured by Analog Devices Inc./Maxim Integrated. It functions as a source selector switch utilizing a P-channel FET with a 1:1 input-to-output ratio. The device supports a supply voltage range of 1.2V to 5.5V and draws a maximum supply current of 300 nA. It delivers a maximum output current of 1A and operates within a temperature range of -40°C to 125°C TA. Key timing parameters include an open delay of 320 µs and a close delay of 80 µs. The component is housed in a compact 4-WLP package measuring 0.77x0.77 mm.

OR Controllers, Ideal Diodes Feature Summary

• Integrates a P-channel internal switch for efficient power path management
• Provides ultra-low quiescent current consumption suitable for battery-powered systems
• Functions as an OR controller for seamless source selection

OR Controllers, Ideal Diodes Applications

• Handheld devices
• Mobile equipment
• Battery management systems

OR Controllers, Ideal Diodes Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging when ordering. Confirm the manufacturer designation matches Analog Devices Inc. or Maxim Integrated to ensure authenticity. Check RoHS compliance status, which is listed as compliant with ROHS3 specifications. Ensure the package type corresponds to the 4-WLP (0.77x0.77) footprint required for the design.

OR Controllers, Ideal Diodes Selection Notes

Select this component for applications requiring minimal standby current and small form factor. The 1.2V minimum supply voltage allows operation in low-voltage environments. Consider the 320 µs turn-on delay for system timing requirements. The integrated P-channel switch simplifies design by eliminating external MOSFETs. Verify thermal performance within the specified -40°C to 125°C operating range.

OR Controllers, Ideal Diodes Part Context

This part belongs to the MAX40203 family of ideal diode controllers. It is designed to replace standard Schottky diodes, reducing power loss in ORing configurations. The device integrates control logic and the power switch into a single small package. It is intended for portable electronics where space and efficiency are critical constraints.

OR Controllers, Ideal Diodes Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.