LT3744IUHE#PBF Step-Down (Buck) LED Drivers by Analog Devices

Status: Production
Series: LT3744
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LT3744 is a fixed frequency synchronous step-down DC/DC controller designed to drive a LED load at up to 20A continuous or 40A pulsed. The peak current mode controller will maintain ±3% LED current regulation over a wide output voltage range, from VEE to VIN. By allowing VEE to float to negative voltages, several LEDs in series can be driven from a single Li-Ion battery with a simple, single step-down output stage. PWM dimming is achieved with the PWM pins. The regulated LED current is set with analog voltages at the CTRL pins. Regulated voltage and overvoltage protection are set with a voltage divider from the output to the FB pin. The switching frequency is programmable from 100kHz to 1MHz through an external resistor on the RT pin.Additional features include an accurate external reference voltage, a control input for thermally derating regulation current, an accurate EN/UVLO pin, an open-drain output fault flag, OVLO, frequency synchronization, and thermal shutdown.

Where to Buy

Prices starting from US$5.90

Distributor Stock
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Analog Devices
from US$5.90
80
in stock
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Richardson RFPD
from US$7.62
-
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Alternative Descriptions

Hi C Sync Buck LED Drvr | Analog Devices
LED DRIVER IC | Richardson RFPD


LT3744IUHE#PBF Semiconductors - ICs by Linear Technology

LED DRIVER SYNC BUCK 40A QFN-36

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Device Topology Synchronous Buck (Step Down)
Input Voltage Min 3.3V
Input Voltage Max 36V
Output Voltage Max 36V
Output Current Max 40A
Switching Frequency 1MHz
No. of Outputs 1Outputs
IC Mounting SMD
Driver Case Style QFN
No. of Pins 36Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Output Current 40A
Output Voltage 36V

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LT3744IUHE#PBF?

Additional datasheets, footprints and schematics for LT3744IUHE#PBF are listed on our Part Details page. You can also find images and similar parts to LT3744IUHE#PBF on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LT3744IUHE#PBF on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LT3744IUHE#PBF price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LT3744IUHE#PBF fall under?

The LT3744IUHE#PBF is listed under Step-Down (Buck) LED Drivers.

Can I view similar or alternative parts?

You can view similar parts to LT3744IUHE#PBF when available in the Step-Down (Buck) LED Drivers range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the LT3744IUHE#PBF you can contact the distributor directly for product support, shipping queries etc.

Is the LT3744IUHE#PBF RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for LT3744IUHE#PBF have stock available?

Authorised distributors including Analog Devices and Richardson RFPD have stock available or on a lead time for LT3744IUHE#PBF.

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