Feature
- Fully Synchronous 2A Step-Down Converter with Integrated 0.14Ω (typ) MOSFETs
- Wide 4.5V to 65V Input Supply Range
- Two Switching Frequency Options: 400kHz and 2.1MHz
- Internal Loop Compensation (MAX20050/MAX20052) and External Loop Compensation (MAX20051/MAX20053) Options
- Switching Frequency Synchronized to PWM Dimming Signal
- Active-Low Fault (FLT) Indicator
- Output Short-Circuit Protection
- High-Side Current Regulation Eliminates One Connection to LED String
- Spread-Spectrum Mode Alleviates EMI Problems
- Low 200mV Full-Scale High-Side Current-Sense Voltage
- REFI Pin Adjusts LED Current Down to Zero
- PWM Dimming Disconnects Both High- and Low- Side MOSFET Drivers
- 5V, 10mA LDO Output Provides Bias to Other Circuits
- Ultra-Low Shutdown Current (5μA typ)
- Output Overload, Short-Circuit, and Overtemperature Protections
- 12-Pin (3mm x 3mm) TDFN and 14-Pin (5mm x 4.4mm) TSSOP Package Options
Applications
- Clearance Lamps (CLLs)
- Commercial, Industrial, and Architectural Lighting
- Corner Lamps (CLs)
- Daytime Running Lamps (DRLs)
- Fog Lamps
- Head Lamps
- Rear Lamps
