The MAX5090BATE+ is a high-efficiency step-down (buck) DC-DC converter in a 16-pin TQFN package. It operates from an input voltage range of 6.5V to 76V, with a quiescent current of only 310µA at no load. This PWM converter switches at a fixed frequency of 127 kHz under heavy loads and automatically switches to pulse skipping mode at light loads to enhance efficiency. It features internal frequency compensation for simplified circuit design and can be synchronized externally to a system clock, making it suitable for noise-sensitive applications. The device incorporates an internal low-resistance DMOS transistor, undervoltage lockout, cycle-by-cycle current limit, hiccup mode short circuit protection, overtemperature shutdown, and external shutdown control with a 19µA current. It provides a fixed 5V output at 2A, operational across -40°C to 125°C, designed for harsh automotive environments. The internal 0.26Ω high-side DMOSFET offers up to 88% efficiency (at 12V input, 1A load), with a maximum duty cycle of 95%. The converter can dissipate 2.67W at +70°C, making it suitable for power management in industrial and automotive applications.
Purchase the Maxim MAX5090B electrically efficient 5V buck converter online today. This compact, automotive-grade device delivers 2A output with up to 88% efficiency, ensuring robust performance in industrial and automotive use. Its wide input range from 6.5V to 76V and features like synchronized operation, internal frequency compensation, and hiccup short-circuit protection provide dependable operation. The device’s small footprint and high thermal dissipation make it an ideal choice for space-constrained power supply designs requiring durability and stable voltage regulation in demanding environments.
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You can download the MAX5090BATE datasheet or visit the MAXIM INTEGRATED / ANALOG DEVICES website for support.
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