SY22101AADC (SY7310AADC)

40V High Current Boost LED Driver

SY22101AADC 40V High Current Boost LED Driver Datasheet

Parameters
Features
Description

Part number	SY22101AADC
Description	Boost CC with 40V/400mΩ MOS PWM dimming, small dimming scale accuracy
Channel(#)	1
Topology	Boost
Dimming mode	PWM
Fsw(kHz)	1000
Vin (min) (V)	2.7
Vin (max) (V)	5.5
Iout (max) (A)	1
Package	SOT23-6
Application	IR LED

Input voltage range: 2.5 to 5.5V
Switch current limit: 1A
Drives LED strings up to 40V
1MHz fixed frequency minimizes the external components
PWM dimming frequency:10kHz~1MHz
Internal softstart limits the inrush current
Open LED over voltage protection
RoHS Compliant and Halogen Free
Compact package: TSOT23-6

SY22101A is step-up DC/DC converters that deliver an accurate constant current for driving LEDs. Operating at a fixed switching frequency of 1MHz allows the device to be used with small value external ceramic capacitors and inductor. LEDs connected in series are driven with a regulated current set by the external resistor. The SY22101A is ideal for driving up to ten white LEDs in series or up to 40V.

Evaluation Board

Photo of evaluation board
Photo of evaluation board
Photo of evaluation board

EVB_SY22101AADC

EVB File

The EVB_SY22101AADC is intended for evaluating 40V High Current Boost LED Driver

Technical Documentation

Title	Date
Silergy_Catalog_Q2_2026	2026-06-12
TSOT23-6	2022-05-20