200KHz, 55V, 2A LED Driver
The MP2488 is a fixed frequency step-down switching regulator to deliver a constant current of up to 2A to high power LEDs. It integrates a high-side, high voltage power MOSFET with a current limit of 3.2A. The wide 4.5V to 55V input range accommodates a variety of step-down applications, making it ideal for automotive, industry and general lighting applications. Peak current mode control and 200mV reference are applied for fast loop response, easy compensation and accurate LED current regulation. The switching frequency is programmable with an external resistor up to 200kHz, which can prevent EMI (Electromagnetic Interference) noise problems. The thermal shut down provides reliable, fault tolerant operations. A 12µA quiescent current in shutdown mode allows its use in battery-powered applications. The MP2488 is available in small 3x3mm 10-pin QFN and SOIC8 with exposed pad packages.
- Wide 4.5V to 55V Operating Input Range
- 220mΩ Internal Power MOSFET
- Up to 200kHz Programmable Switching Frequency
- 130μA Quiescent Current
- Ceramic Capacitor Stable
- Internal Soft-Start
- Up to 97.5% Efficiency
- 200mV reference voltage for high efficiency
- Available in 3x3mm 10-Pin QFN and SOIC8 with Exposed Pad Packages
- Vin (min) (V)4.5
- Vin (max) (V)55
- Vout (max) (V)52
- Iout (max) (A)2
- Open LED ProtectionYes
- PackageQFN-10 (3x3)
- Rds(on) (mΩ)220
- Vfb (V)0.2
- fsw (max) (kHz)200
- Iq (mA)0.13
- Ishutdown (µA)12
The EV2488DN-00A is an evaluation board for the MP2488DN, a step down converter designed for driving up to 10 white LEDs in series with 330mA current.
The MP2488 is a peak current mode control, fixed frequency regulator to deliver a constant current of up to 2A to high power white LEDs. Its low 200mV feedback voltage reduces power loss and improves efficiency.
The wide 4.5V to 55V input range accommodates a variety of step-down applications, making it ideal for automotive, industry and general lighting application.
The MP2488 is available in small 3mmX3mm 10 pin QFN and SOIC8 with exposed pad package.
US$ 25.00 + tax