Datasheet4U Logo Datasheet4U.com

SY21249C1 Datasheet Synchronous Step-down Regulator

Manufacturer: Silergy

Overview: SY21249C1 High-Efficiency Fast-Response, 11A, 24V Input Synchronous Step-Down Regulator.

Datasheet Details

Part number SY21249C1
Manufacturer Silergy
File Size 1.54 MB
Description Synchronous Step-Down Regulator
Datasheet SY21249C1-Silergy.pdf

General Description

The SY21249C1 high-efficiency synchronous stepdown DC/DC regulator is capable of delivering 11A current over a wide input voltage range of 5.5V to 24V.

To minimize conduction loss, it integrates a main switch and a synchronous switch with very low RDS(ON).

It operates at a pseudoconstant frequency of 600kHz under heavy load conditions to minimize inductor and capacitor sizes.

Key Features

  • 5.5.
  • 24V Input Voltage Range.
  • Up to 11A Output Current 100mA LDO Current.
  • Low RDS(ON) for Internal Switches: 17mΩ Top, 7.5mΩ Bottom.
  • Integrated 1.5Ω Bypass Switch.
  • COT Ripple-Based Control to Achieve Fast Transient Responses.
  • Soft-Start Inrush Current Limit.
  • Pseudoconstant Frequency: 600kHz.
  • Fixed 5.15V Output Voltage.
  • ±1.5% Internal Reference Voltage.
  • PFM/Ultrasonic (USM) Selectable Light- Load Operation Mode.
  • Power-Good Indicator.

More Datasheets from Silergy

Part Number Description
SY21242 2.5A Current Limit Step-Up Regulator
SY21245 Synchronous Buck Converter
SY21222 Step-Up Regulator
SY21225 15A Synchronous Step Up Regulator
SY21264A 1MHz Step-Up Regulator
SY21282 Step-Up Regulator
SY21019 300mA Asynchronous Buck Converter
SY21031 0.8A Asynchronous Step-Down Regulator
SY21034 0.6A Asynchronous Step-Down Regulator
SY21036 1A Synchronous Step-Down Regulator

SY21249C1 Distributor