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SY8121B - 1.2MHz Synchronous Step Down Regulator

Datasheet Summary

Description

SY8121B develops high efficiency synchronous stepdown DC-DC converter capable of delivering 2A load current.

SY8121B operates over a wide input voltage range from 4.5V to 18V and integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss.

Features

  • Low RDS(ON) for internal switches (top/bottom):170/160 mΩ.
  • 4.5-18V input voltage range.
  • 2A load current capability.
  • Instant PWM architecture to achieve fast transient responses.
  • Internal softstart limits the inrush current.
  • 2% 0.6V reference.
  • RoHS Compliant and Halogen Free.
  • Compact package: SOT23-6.

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Datasheet Details

Part number SY8121B
Manufacturer Silergy
File Size 2.74 MB
Description 1.2MHz Synchronous Step Down Regulator
Datasheet download datasheet SY8121B Datasheet
Additional preview pages of the SY8121B datasheet.

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Full PDF Text Transcription

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Application Note: SY8121B High Efficiency Fast Response, 2A, 18V Input 1.2MHz Synchronous Step Down Regulator General Description SY8121B develops high efficiency synchronous stepdown DC-DC converter capable of delivering 2A load current. SY8121B operates over a wide input voltage range from 4.5V to 18V and integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. SY8121B always operates under continuous condition mode, low output ripple and small inductor and capacitor size are achieved with 1.2MHz switching frequency. Ordering Information SY8121 □(□□)□ Temperature Code Package Code Optional Spec Code Ordering Number Package type Note SY8121BABC SOT23-6 -- Features • Low RDS(ON) for internal switches (top/bottom):170/160 mΩ • 4.
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