MSKSEMI MS1360

MS1360 is a continuous inductor current conduction mode step-down LED constant current driver designed to drive one or more LED strings. The MS1360 operates at input voltages from 5.5V to 30V, providing adjustable output current with a maximum output current of up to 1A. Depending on the input voltage and external components, the MS1360 can drive LEDs with power up to tens of watts.

The MS1360 integrates a power switch, features a high-side current sensing circuit, and includes a DIM pin compatible with both PWM and analog dimming. When the DIM pin voltage falls below 0.3V, the output is shut down and the device enters standby mode.

The MS1360 incorporates an over-temperature protection circuit. When the chip reaches the over-temperature protection threshold, it enters over-temperature protection mode and gradually reduces the output current to improve system reliability.

The MS1360 employs a patented circuit architecture that eliminates output current overshoot during low dropout operation, extending LED service life. The MS1360 also features a patented constant current circuit with excellent load regulation and line regulation. The MS1360 is available in a SOT-23-5 package.

• Maximum output current: 0.8A
• High efficiency: 96%
• Excellent load regulation and line regulation
• High-side current sensing
• Maximum dimming control frequency: 16KHz
• Hysteretic control, no loop compensation required
• Maximum operating frequency: 1MHz
• Current accuracy: ±5%
• Wide input voltage: 5.5V ~ 30V
• Intelligent over-temperature protection
• Low dropout with no overshoot

• LED backup lights, signal lights
• Low-voltage LED spotlights replacing halogen lamps
• Automotive lighting