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SY21242 - 2.5A Current Limit Step-Up Regulator

General Description

The SY21242 high efficiency step-up regulator operates using current mode control, over an input voltage range from 2V to 6V.

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

Key Features

  • Wide 2V to 6V Input Range.
  • Up to 6V Output Voltage.
  • Low RDS(ON) for Internal N-Channel MOSFET: 120mΩ.
  • 2.5A Minimum Switch Current Limit.
  • 1MHz Switching Frequency.
  • Minimum On-Time: 100ns Typical.
  • Minimum Off-Time: 100ns Typical.
  • Internal Soft-Start Limits Inrush Current.
  • ±2% 0.6V Reference.
  • RoHS-Compliant and Halogen-Free.
  • Compact SOT23-6 Package.

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Datasheet Details

Part number SY21242
Manufacturer Silergy
File Size 964.04 KB
Description 2.5A Current Limit Step-Up Regulator
Datasheet download datasheet SY21242 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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SY21242 High Efficiency 6V, 1MHz, 2.5A Current Limit Step-Up Regulator General Description The SY21242 high efficiency step-up regulator operates using current mode control, over an input voltage range from 2V to 6V. It integrates an Nchannel MOSFET with low 120mΩ RDS(ON) to minimize conduction loss. The 1MHz switching frequency and internal compensation reduce external component count and save PCB space, and the built-in internal softstart circuitry minimizes inrush current at startup. The SY21242 is available in a compact SOT23-6 package. Features ● Wide 2V to 6V Input Range ● Up to 6V Output Voltage ● Low RDS(ON) for Internal N-Channel MOSFET: 120mΩ ● 2.