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