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  • The L6738 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 the management of conversions with power input VINas low as 1.5 V and the device supply voltage ranging from 5 V to 12 V bus.
    The L6738 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 the generation of output voltages with ±0.5% accuracy over line and temperature variations.
    The oscillator is programmable up to 600 kHz.
    The L6738 provides a programmable dual-level overcurrent protection and overvoltage protection. The current information is monitored across the inductor DCR.
    The L6738 is available in a VFQFPN 16 3x3 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 diode
    • 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
    • Programmable oscillator up to 600 kHz
    • LS-less to manage pre-bias startup
    • Adjustable output voltage
    • Disable function
    • Internal soft-start
    • VFQFPN 16 3x3 mm package

Circuit Diagram

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    • Part number
      Status
      Description
      Type
      Supplier

      STEVAL-ISA075V1

      NRND

      High efficiency DC-DC converter - compact solution based on L6738

      PSU and Converter Solution Eval Boards --
      STEVAL-ISA075V1

      Description:

      High efficiency DC-DC converter - compact solution based on L6738

CAD/EDA Symbols, Footprints and Models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L6738TR
Active
VFQFPN 16 3x3x1.0 Industrial Ecopack2

L6738TR

Package:

VFQFPN 16 3x3x1.0

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VFQFPN 16 3x3x1.0

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

eDesignSuite

Converter

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

Output

V This option is required and must be a number.
A This option is required and must be a number.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
L6738TR Available at 2 distributors

Distributor availability ofL6738TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3596 1 Order Now
MOUSER WORLDWIDE 3988 1 Order Now

Distributor reported inventory date: 2020-09-27

Distributor Name

DIGIKEY

Stock

3596

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

3988

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-09-27

Buy now
Active
EAR99 NEC Tape And Reel VFQFPN 16 3x3x1.0 - - PHILIPPINES

L6738TR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

Distributor availability ofL6738TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3596 1 Order Now
MOUSER WORLDWIDE 3988 1 Order Now

Distributor reported inventory date: 2020-09-27

Distributor Name

DIGIKEY

Stock

3596

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

3988

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-09-27

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

VFQFPN 16 3x3x1.0

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

Country of Origin

PHILIPPINES

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors