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SY21034 Datasheet 0.6a Asynchronous Step-down Regulator

Manufacturer: Silergy

Overview: SY21034 High-Efficiency, 200kHz, 100V Input, 0.6A Asynchronous Step-Down Regulator.

Datasheet Details

Part number SY21034
Manufacturer Silergy
File Size 1.52 MB
Description 0.6A Asynchronous Step-Down Regulator
Datasheet SY21034-Silergy.pdf

General Description

The SY21034 high-efficiency asynchronous stepdown DC/DC regulator can deliver 0.6A current over a wide input voltage range from 4.5V to 100V.

It uses constant-off-time and peak-current-mode control to achieve fast transient response, and integrates a main switch with low RDS(ON) to minimize conduction loss.

The 200kHz switching frequency permits low output-voltage ripple and reduces external inductor and capacitor sizes.

Key Features

  • 4.5V to 100V Input Voltage Range.
  • Up to 0.6A Output Current.
  • Low RDS(ON) for Internal N-Channel power FET: 1Ω.
  • 200kHz Pseudo-constant Switching Frequency.
  • Constant Off-Time and Peak-Current-Mode control.
  • Internal Soft-Start.
  • 0.6V ±1% Reference.
  • Hiccup Mode Short-Circuit Protection.
  • EN On/Off Control with Accurate Threshold.
  • Cycle-by-Cycle Peak Current limit.
  • Compact TSOT23-6 Package.

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SY21034 Distributor