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L6984 - synchronous step-down switching regulator

Datasheet Summary

Description

The L6984 is a step-down monolithic switching regulator able to deliver up to 400 mA DC.

The output voltage adjustability ranges from 0.9 V.

The fixed 3.3 V VOUT requires no external resistor divider.

Features

  • 400 mA DC output current.
  • 4.5 V to 36 V operating input voltage.
  • Synchronous rectification.
  • Low consumption mode or low noise mode.
  • 75 µA IQ at light load (LCM VOUT = 3.3 V).
  • 13 µA IQ-SHTDWN.
  • Adjustable fSW (250 kHz - 600 kHz).
  • Output voltage adjustable from 0.9 V.
  • No resistor divider required for 3.3 V VOUT.
  • VBIAS maximizes efficiency at light load.
  • 350 mA valley current limit.
  • Constant on-time control scheme.
  • PGOOD open collecto.

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Datasheet preview – L6984

Datasheet Details

Part number L6984
Manufacturer STMicroelectronics
File Size 4.00 MB
Description synchronous step-down switching regulator
Datasheet download datasheet L6984 Datasheet
Additional preview pages of the L6984 datasheet.

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Full PDF Text Transcription

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L6984 36 V, 400 mA synchronous step-down switching regulator Datasheet - production data VFDFPN10 4 x 4 x 1.0 mm Application  Battery powered applications (LCM)  Sensors (LNM)  E- metering VDFPN10 3 x 3 x 1.0 mm Features  400 mA DC output current  4.5 V to 36 V operating input voltage  Synchronous rectification  Low consumption mode or low noise mode  75 µA IQ at light load (LCM VOUT = 3.3 V)  13 µA IQ-SHTDWN  Adjustable fSW (250 kHz - 600 kHz)  Output voltage adjustable from 0.9 V  No resistor divider required for 3.3 V VOUT  VBIAS maximizes efficiency at light load  350 mA valley current limit  Constant on-time control scheme  PGOOD open collector  Thermal shutdown Description The L6984 is a step-down monolithic switching regulator able to deliver up to 400 mA DC.
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