L6986I

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38 V, 5W synchronous iso-buck converter

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Product overview

Description

The L6986I is a device specifically designed for the isolated buck topology. Due to the P-Channel MOSFET as high-side power switch the device features 100% duty cycle operation. The primary output voltage can be accurately adjusted, whereas the isolated secondary output is derived by using a given transformer ratio. No optocoupler is required. The primary sink capability up to 1.9 A (even during soft-start) allows a proper energy transfer to the secondary side as well as enables a tracked soft-start of the secondary output. The control loop is based on a peak current mode architecture and the device operates in forced PWM. The 300 ns blanking time filters oscillations, generated by the transformer leakage inductance, making the solution more robust. Pulse by pulse current sensing on both power elements implements an effective constant current protection in the primary side. Due to the primary reverse current limit, the secondary output is protected against short circuit events. A primary output voltage supervisor, which notifies primary output voltage regulation through the RST open collector output, overvoltage protection, adjustable switching frequency, synchronization and a programmable soft-start are also available.
  • All features

    • Designed for iso-buck topology
    • 4 V to 38 V operating input voltage
    • Primary output voltage regulation / no optocoupler required
    • 1.9 A typical sink peak primary current capability
    • Peak current mode architecture in forced PWM operation
    • 300 ns blanking time
    • 8 µA IQ-SHTDWN
    • Adjustable fSW and synchronization
    • Embedded primary output voltage supervisor
    • Adjustable soft-start time
    • Internal primary current limiting
    • Overvoltage protection
    • RDS(on) HS = 180 mΩ, RDS(on) LS = 150 mΩ
    • Thermal shutdown

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STMicroelectronics - L6986I

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L6986ITR
Active
HTSSOP16 Industrial Ecopack2

L6986ITR

Package:

HTSSOP16

Material Declaration**:

Marketing Status

Active

Package

HTSSOP16

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.

Sample & Buy

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ECCN (US)
ECCN (EU)
Packing Type
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Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
L6986ITR Available at 3 distributors

Distributor availability ofL6986ITR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2500 1 Order Now
MOUSER WORLDWIDE 2480 1 Order Now
Farnell Element14 EUROPE 300 1 Order Now

Distributor reported inventory date: 2021-06-18

Distributor Name

DIGIKEY

Stock

2500

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

2480

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

300

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-06-18

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel HTSSOP16 - - PHILIPPINES 1.0 / 1k

L6986ITR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.0 / 1k

Distributor availability ofL6986ITR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2500 1 Order Now
MOUSER WORLDWIDE 2480 1 Order Now
Farnell Element14 EUROPE 300 1 Order Now

Distributor reported inventory date: 2021-06-18

Distributor Name

DIGIKEY

Stock

2500

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

2480

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

300

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-06-18

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

HTSSOP16

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

1.0 / 1k

Country of Origin

PHILIPPINES

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