Create a design and simulate using EE-Sim tools: MAX16903SATB33/V+
The MAX16903SATB33/V+ is a small, synchronous buck converter with integrated high-side and low-side switches. The device is designed to deliver 1A 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 MAX16903SATB33/V+ can operate in dropout by running at 97% duty cycle, making it ideal for automotive and industrial applications. The MAX16903SATB33/V+ 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 MAX16903SATB33/V+ can be ordered with spread-spectrum frequency modulation, designed to minimize EMI-radiated emissions due to the modulation frequency. The MAX16903SATB33/V+ is available in a thermally enhanced, 3mm x 3mm, 10-pin TDFN package or a 16-pin TSSOP package. The MAX16903SATB33/V+ operates over the -40°C to +125°C automotive temperature range.Feature
- Meets Stringent Automotive Quality and Reliability Requirements
- +3.5V to +28V Input Voltage Range Allows Operation in "Cold Crank" Conditions
- Tolerates Input-Voltage Transients to +42V
- Enable-Pin Compatible from +3.3V Logic Level to +42V
- 1A Minimum Output Current with Overcurrent Protection
- -40°C to +125°C Automotive Temperature Range
- AEC-Q100 Qualified
- Increased Efficiency and Reduced BOM Cost and Board Space
- Integrated High- and Low-Side FETs
- Fixed Output Voltages (see the Selector Guide in the full data sheet and Contact the Factory for All Available Trimmed Output-Voltage Options)
- 10-Pin TDFN-EP or 16-Pin TSSOP-EP Packages
- Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements
- 25μA Quiescent Current During Skip Mode Operation
- High Switching Frequency Allows Use of Small, Low-Cost External Components
- 2.1MHz Switching Frequency with Three Modes of Operation
- Skip Mode for Efficient, Low-Power Operation
- Forced Fixed-Frequency Operation
- External Frequency Synchronization
- Reduced EMI Emissions at the Switching Frequency
- Optional Spread-Spectrum Frequency Modulation
Applications
- Automotive
- High-Voltage Input-Power DC-DC Applications
- Industrial
