Features and Benefits
- Wide +3.5V to +28V Input Voltage Range
- Tolerates Input Voltage Transients to +42V
- 600mA Minimum Output Current with Overcurrent Protection
- Fixed Output Voltages (See the Selector Guide in the full data sheet and Contact Factory for All Available Trimmed Output Voltage Options)
- 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
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.
The MAX16904 operates at a 2.1MHz frequency, allowing for small external components and reduced output ripple. It guarantees no AM band interference. SYNC input programmability enables three frequency modes for optimized performance: forced fixed-frequency operation, SKIP mode (ultra-low quiescent current of 25µA), and synchronization to an external clock. The MAX16904 can be ordered with spread-spectrum frequency modulation, designed to minimize EMI-radiated emissions due to the modulation frequency.
The MAX16904 is available in a thermally enhanced, 3mm x 3mm, 10-pin TDFN package or a 16-pin TSSOP package. The MAX16904 operates over the -40°C to +125°C automotive temperature range.
- High-Voltage Input-Power DC-DC Applications
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
- High-Voltage Input-Power DC-DC Applications
Features & Benefits
- Up to +42V Input Supply Range
- Delivers Up to 600mA Output Current
- +5V Output
- 2.1MHz Switching Frequency
- Proven PCB Layout
- Fully Assembled and Tested
Documentation & Resources
Tools & Simulations
EE-Sim® Power Tools
The EE-Sim DC-DC Converter Tool uses your requirements to quickly create a complete power design including a schematic, BOM with commercially available parts, and time and frequency domain simulations. Your customized schematic can be downloaded for further analysis in the standalone EE-Sim OASIS Simulator, featuring SIMPLIS and SIMetrix SPICE engines.
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.