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SY21314 - 4A Current Limit Step-Up Regulator

General Description

The SY21314 high efficiency step-up regulator operates using current mode control over a wide input voltage range from 3V to 33V.

It integrates an N-channel MOSFET with low 120mΩ RDS(ON) to minimize conduction loss.

Key Features

  • 3V to 33V Input Voltage Range.
  • 33V Maximum Output Voltage.
  • 4A Main MOSFET Current Limit.
  • 15 µA Shutdown Current (Max. ).
  • 100 µA Quiescent Current (Typ. ).
  • Low RDS(ON) for Internal N-Channel MOSFET: 120mΩ.
  • 1MHz Switching Frequency.
  • Internal Soft-Start.
  • ±2% 0.6V Reference.
  • Cycle-by-Cycle Peak Current Limit.
  • Overtemperature Protection.
  • RoHS-Compliant and Halogen-Free.
  • Compact DFN3mmx3mm-10 Package.

📥 Download Datasheet

Datasheet Details

Part number SY21314
Manufacturer Silergy
File Size 1.12 MB
Description 4A Current Limit Step-Up Regulator
Datasheet download datasheet SY21314 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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SY21314 High Efficiency 33V, 1MHz, 4A Current Limit Step-Up Regulator General Description The SY21314 high efficiency step-up regulator operates using current mode control over a wide input voltage range from 3V to 33V. It integrates an N-channel MOSFET with low 120mΩ RDS(ON) to minimize conduction loss. The 1MHz switching frequency and internal compensation reduce external inductor and capacitor sizes, and the built-in internal soft-start circuitry minimizes inrush current at startup. The device offers overcurrent and thermal shutdown protections. The SY21314 is available in a compact DFN3x3-10 package. Features ● 3V to 33V Input Voltage Range ● 33V Maximum Output Voltage ● 4A Main MOSFET Current Limit ● 15 µA Shutdown Current (Max.) ● 100 µA Quiescent Current (Typ.