Introducing the MAX1736EUT42 from Maxim Integrated

The MAX1736EUT42 is a high-performance, low-power, step-down DC-DC converter designed to deliver a fixed 4.2V output from an input voltage range of 2.7V to 5.5V. This makes it an ideal power supply solution for battery-powered devices such as handheld computers, medical instruments, and portable communication equipment.

With its integrated P-channel MOSFET pass transistor, the MAX1736EUT42 achieves high efficiency, which is crucial for extending battery life in portable applications. Its 1.5MHz fixed-frequency PWM operation also allows for a small, low-profile inductor and capacitors, thereby minimizing the overall footprint of the power supply design on the circuit board.

The device features a low quiescent current of only 110µA, which significantly reduces power consumption when in operation. Furthermore, it includes a shutdown mode that decreases the quiescent current to less than 1µA, further conserving battery life when the device is not active.

The MAX1736EUT42 provides several protection features to ensure the stability and reliability of your power supply. These include overtemperature protection, which shuts down the device to prevent damage from excessive heat, and a current-limit feature to protect against overcurrent conditions. Additionally, the device has an under-voltage lockout (UVLO) that ensures the converter operates at the correct input voltage.

Maxim Integrated has packaged the MAX1736EUT42 in a space-saving 6-pin SOT23, which is perfect for applications where board space is at a premium. The compact design, combined with its robust feature set, makes this converter a versatile and reliable choice for designers looking to optimize their power management solutions.

Whether you're developing the next generation of wearable technology or upgrading the power system in a portable medical device, the MAX1736EUT42 offers the efficiency, reliability, and form factor needed to meet the stringent requirements of modern battery-powered applications.