MP2341 4.2-24V, 2A, 1MHz Step-Down LED Driver in SOT583 Package

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MP2341 4.2-24V, 2A, 1MHz Step-Down LED Driver in SOT583 Package

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pMPS MP2341 — Step-Down LED Driver in SOT583 Package, 4.2-24V input, 2 A output, SOT583./p

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MPS Step-Down SOT583 LED Drivers LED Power Management

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MP2341 4.2-24V, 2A, 1MHz Step-Down LED Driver in SOT583 Package

The MPS MP2341 is a Step-Down LED Driver in SOT583 Package. It operates from a 4.2 V to 24 V input, is rated for 2 A and switches at 1 MHz. It is supplied in a SOT583 package.

The MP2341 is a 24V, monolithic, synchronous, rectified, step-down, switch-mode white LED driver with built-in internal power MOSFETs and a synchronous rectifier switch.

Key Specifications

Part Number	MP2341
Function	Step-Down LED Driver in SOT583 Package
Input Voltage	4.2 V to 24 V
Current Rating	2 A
Switching Frequency	1 MHz
Interface	PWM
Package	SOT583
Ordering Codes	MP2341

Features

Wide 4.2V to 24V Operating Input Range
125mΩ/75mΩ Low-RDS(ON) Internal Power MOSFETs
High-Efficiency Synchronous Mode Operation
Forced PWM Mode
Fast Load Transient Response
1MHz Switching Frequency
Internal Soft Start (SS)
Analog Dimming by the DC Voltage through the EN/DIM Pin
Analog Dimming by the PWM Signal through the PDIM Pin
PWM Dimming by the PWM Signal through the EN/DIM Pin

Typical Application Circuit

Applications

Infrared LED Drivers
General LED Drivers
Flashlights

Design Notes

Channel-to-channel current matching sets backlight uniformity; check the matching spec at the current you will actually run.
In boost topologies the OVP threshold must clear the worst-case forward voltage of the longest string, including temperature and binning spread.
Keep PWM dimming above 200 Hz to stay clear of visible flicker, and away from the audio band if the product has a speaker.
Size the inductor and output capacitor for the string current ripple, not the total LED current.