General Description

The MAX16904 is a small, synchronous buck converter with integrated high-side and low-side switches. The device is designed to deliver 600mA with input voltages from +3.5V to +28V while using only 25µA quiescent current at no load. Voltage quality can be monitored by observing the PGOOD signal. The MAX16904 can operate in dropout by running at 97 duty cycle, making it ideal for automotive and industrial applications.

Features

♦ Wide +3.5V to +28V Input Voltage Range

♦ Tolerates Input Voltage Transients to +42V

♦ 600mA Minimum Output Current with Overcurrent Protection

♦ Fixed Output Voltages (+3.3V and +5V)

♦ 2.1MHz Switching Frequency with Three Modes of Operation

    25µA Ultra-Low Quiescent Current SKIP Mode

    Forced Fixed-Frequency Operation

    External Frequency Synchronization

♦ Optional Spread-Spectrum Frequency Modulation

♦ Power-Good Output

♦ Enable-Pin Compatible from +3.3V Logic Level to +42V

♦ Thermal Shutdown Protection

♦ -40°C to +125°C Automotive Temperature Range

♦ 10-Pin TDFN-EP or 16-Pin TSSOP-EP Packages

♦ AEC-Q100 Qualified

Applications

    Automotive

    Industrial

    Military

    High-Voltage Input-Power DC-DC Applications