SY26612AFHC (SQ25902AFHC)

High Efficiency 300kHz, 25V Boost/SEPIC Controller with Output Current Limit

SY26612AFHC High Efficiency 300kHz, 25V Boost/SEPIC Controller with Output Current Limit Datasheet

Parameters
Features
Description

Part number	SY26612AFHC
Channel(#)	1
Vin (min) (V)	3
Vin (max) (V)	25
Topology	Boost,SEPIC,Flyback,Forward
Switching frequency (min)(kHz)	300
Switching frequency (max)(kHz)	300
Vout (min) (V)	3
Vout2 (min)(V)
Vout (max) (V)	Programmable
Vout2 (max )(V)
Vref accuracy (±%)	1.5
Vout accuracy(±%)
Control mode	Peak current mode
Duty cycle (max)(%)	90
Operation mode	PFM
Iq (typ) (uA)	130
Features	Soft start,Current limit
Package	SSOP10
Operating temperature range(°C)	-40 to 125
Functional safety category

Input Voltage Range 3V to 25V
300kHz Fixed Switching Frequency
Output Current Limit
External Compensation
Programmable Soft-start Limits the Inrush Current
Integrated Low Side Driver: 1.5A Sourcing and 3A Sinking
RoHS Compliant and Halogen Free
Compact Package: SSOP10

The SY26612A is a current mode DC/DC controller targeted for both Boost and SEPIC applications. The SY26612A has accurate output current limit. External compensation provides flexible adjustment of control loops for different applications. The internal low side driver is capable of sourcing 1.5A and sinking 3A current.

Evaluation Board

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

EVB_SY26612AFHC_1

EVB File

The EVB_SY26612AFHC_1 is intended for evaluating the SEPIC applications with 5~18V input, 2.5A output current limit, and 12V output voltage.

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

EVB_SY26612AFHC_2

EVB File

The EVB_SY26612AFHC_2 is intended for evaulating the Boost applications with 5V input, 1A output current limit, and 24V output voltage.

Technical Documentation

Title	Date
Silergy_Catalog_Q2_2026	2026-06-12