Benefits and Features
● One-Chip Solution Directly from Car Battery to
Portable Device
• 4.5V to 28V (40V Load Dump) Input Voltage
• 5V, 3.5A Output Current Capability
• 5V, 1.5A Output Current Capability (MAX20038A)
• Device-Attach Detection Output
• Low-Q Current Skip and Shutdown Modes
● Low-Noise Features Prevent Interference with AM
Band and Portable Devices
• Fixed-Frequency 275kHz to 2.2MHz Operation
• Fixed-PWM Option at No Load
• Spread Spectrum for EMI Reduction
• SYNC Input/Output for Frequency Parking
● Optimal USB Power and Communication for Portable
Devices
• User-Programmable Voltage Gain Adjusts Output
for Up to 600mΩ Cable Resistance
• User-Programmable USB Current Limit
• USB 480Mbps/12Mbps/1.5Mbps Data Switches
• Integrated iPod®/iPhone®/iPad® and Samsung®
Charge-Detection Termination Resistors
• Supports USB BC1.2 CDP and DCP Modes
• Supports China YD/T 1591-2009
• Compatible with USB On-the-Go Specification
● Robust Design Keeps Vehicle System and Portable
Devices Safe in Automotive Environment
• Short-to-Battery Protection on DC-DC
Converter Pins
• Short-to-VBUS Protection on USB Pins (MAX20037)
• Short-to-Battery Protection on USB Pins (MAX20038)
• ±15kV Air/±8kV Contact ISO 10605*
• ±15kV Air/±8kV Contact IEC 61000-4-2*
• Reduced Inrush Current with Soft-Start
• Overtemperature Protection
• -40°C to +125°C Operating Temperature Range

Applications
● Automotive Radio and Navigation
● USB Port for Host and Hub Applications
● Automotive Connectivity/Telematics
● Dedicated USB Charging Port (DCP)