Home Products DC-DC DC-DC Converters Buck

SY21228AQQC (SY8368AQQC)

Production
High Efficiency Fast Response 8A Continuous, 16A Peak, 28V Input Synchronous Step Down Regulator
Part number SY21228AQQC
Channel(#) 1
Vin (min) (V) 4
Vin (max) (V) 28
Switching frequency (min)(kHz) 800
Switching frequency (max)(kHz) 800
Vout (min) (V) 0.6
Vout (max) (V) 5
Iout (max) (A) 8
Vout2 (min)(V)
Vout2 (max )(V)
Iout2 (max)(A)
Vref accuracy (±%) 1
Vout accuracy(±%)
Control mode COT+Ripple
Duty cycle (max)(%)
Operation mode FCCM/PFM Selectable
Iq (typ) (uA) 100
Features
Package
Operating temperature range(°C)
Functional safety category

·         4.0-28V Wide Input Voltage Range

·         Low RDS(ON) for Internal Switches: 20/10mΩ

·         Instant PWM Architecture to Achieve Fast Transient Response

·         Internal 600μs Soft-start Limits the Inrush Current

·         Pseudo-constant Frequency: 800kHz

·         8A Continuous, 16A Peak Output Current Capability

·         ±1% 0.6V Reference Voltage

·         Hiccup Mode SCP, OVP

·         Thermal Shutdown with Auto Recovery

·         RoHS Compliant and Halogen Free

The SY8368A develops a high efficiency synchronous step-down DC/DC regulator capable of delivering 8A continuous, 16A peak current. The SY8368A operates over a wide input voltage range from 4.0V to 28V and integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss.

Evaluation Board

  • 21228A-1

    Photo of evaluation board

  • 21228A-2

    Photo of evaluation board

  • 21228A-3

    Photo of evaluation board

  • 21228A-4

    Photo of evaluation board

  • 21228A-5

    Photo of evaluation board

EVB_SY21228AQQC

The EVB_SY21228AQQC is intended for evaluating fast response, 8A continuous, 16A peak current, 28V input synchronous Buck regulator. It features Enable control, output voltage selection inputs. 

Technical Documentation

Title Date
Silergy_Catalog_Q2_2026 2026-06-12