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L6739TR

Active

Single-phase PWM controller with light-load efficiency optimization

Quantity $ per Unit Savings
1 - 9$2.780%
10 - 99$2.2220%
100 - 499$1.5644%
500$1.5146%
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Out of stock
$2.78
Parameter NameParameter Value
ECCN USEAR99
ECCN EUNEC
Packing TypeTape And Reel
ROHS Compliance GradeEcopack2
GradeIndustrial
Package NameVFQFPN 16 3x3x1.0

The L6739 is a single-phase step-down controller with integrated high current drivers that provides complete control logic and protection to realize a DC-DC converter.


The device flexibility allows to manage conversions with power input VINas low as 1.5 V and the device supply voltage ranging from 5 V to 12 V bus.


The L6739 device features a proprietary algorithm that allows light-load efficiency optimization, boosting efficiency without compromising the output voltage ripple.


The integrated 0.8 V reference allows generation of output voltages with ± 0.5% accuracy over line and temperature variations.


The oscillator is programmable up to 600 kHz.


The L6739 device provides a programmable overcurrent protection and overvoltage protection. The current information is monitored across the inductor DCR.


The L6739 is available in a VFQFPN 16 3 x 3 mm package.

Key features
  • Flexible power supply from 5 V to 12 V bus
  • Power conversion input as low as 1.5 V
  • Light-load efficiency optimization
  • Embedded bootstrap switch
  • VIN detector
  • 0.8 V internal reference
  • 0.5% output voltage accuracy
  • Remote GND recovery
  • High current integrated drivers
  • Sensorless and programmable precise-OC sense across inductor DCR
  • OV protection
  • Overtemperature protection
  • Programmable oscillator up to 600 kHz
  • LS-less to manage pre-bias startup
  • Adjustable output voltage
  • Disable function
  • Internal soft-start
  • VFQFPN 16 3 x 3 mm package