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G5318 - High-Speed Step-Down Controller

Description

G5318 is a small-sized step-down controller uses constant on-time control scheme to handle wide input/output voltage ratios with ease and provides 100ns “instant-on” response to load transients while maintaining a relatively constant switching frequency.

Features

  • Ultra-High Efficiency.
  • 4700ppm/°C RDS(ON) Current Sensing ( without Current-Sense Resistor ).
  • Quasi-PWM with 100ns Load-Step Response.
  • Built-in 0.5% 0.7V Reference.
  • 0.7V to 2.6V Adjustable Output Range.
  • 4.5V to 28V Battery Input Range.
  • 4 Selectable Frequency Setting.
  • Integrated Boost Switch.
  • OVP & UVP.
  • 1.5ms Voltage Servo Soft-Start.
  • Drives Large Synchronous-Rectifier FETs.
  • Power-Good Ind.

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Datasheet Details

Part number G5318
Manufacturer Global Mixed-mode Technology
File Size 58.40 KB
Description High-Speed Step-Down Controller
Datasheet download datasheet G5318 Datasheet

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Full PDF Text Transcription

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Global Mixed-mode Technology G5318 High-Speed Step-Down Controller Features „ Ultra-High Efficiency „ 4700ppm/°C RDS(ON) Current Sensing ( without Current-Sense Resistor ) „ Quasi-PWM with 100ns Load-Step Response „ Built-in 0.5% 0.7V Reference „ 0.7V to 2.6V Adjustable Output Range „ 4.5V to 28V Battery Input Range „ 4 Selectable Frequency Setting „ Integrated Boost Switch „ OVP & UVP „ 1.5ms Voltage Servo Soft-Start „ Drives Large Synchronous-Rectifier FETs „ Power-Good Indicator „ Thermal Shutdown (Non-latch) General Description G5318 is a small-sized step-down controller uses constant on-time control scheme to handle wide input/output voltage ratios with ease and provides 100ns “instant-on” response to load transients while maintaining a relatively constant switching frequency.
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