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G5318 - High-Speed Step-Down Controller

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.

Key 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

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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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.