LT3477EFE#PBF Step-Up (Boost) LED Drivers by Analog Devices

Status: Production
Series: LT3477
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LT3477 is a current mode, 3A DC/DC step-up converter with dual rail-to-rail current sense amplifiers and an internal 3A, 42V switch. It combines a traditional voltage feedback loop and two unique current feedback loops to operate as a constant-current, constant-voltage source. Both current sense voltages are set at 100mV and can be adjusted independently using the IADJ1 and IADJ2 pins. Efficiency of up to 93% can be achieved in typical

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Prices starting from US$4.02

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Analog Devices
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Newark Electronics
from US$7.18
174
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element14
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Farnell
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Chip One Stop
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Richardson RFPD
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Features

Dual 100mV Rail-to-Rail Current Sense Amplifiers
Wide Input Voltage Range: 2.5V to 25V
3A, 42V Internal Switch
High Efficiency Power Conversion: Up to 93%
Drives LEDs in Boost, Buck-Boost or Buck Mode
Frequency Set by External Resistor: 200kHz to 3.5MHz
Programmable Soft-Start
Low VCESAT Switch: 0.3V at 2.5A
Capable of Positive and Negative Output Voltages (Boost, Inverting, SEPIC, Flyback)
Available in Thermally Enhanced 20-Lead (4mm × 4mm) QFN and 20-Lead TSSOP Packages

Alternative Descriptions

3A, DC/DC Conv w/ 2x R2R C Sen | Analog Devices
Dc/Dc Conv, Boost, 3.5Mhz, 85Deg C | Newark Electronics
DC/DC CONV, BOOST, 3.5MHZ, 85DEG C | element14
DC TO DC CONVERTER | Richardson RFPD


LT3477EFE#PBF Semiconductors - ICs by Linear Technology

IC DC/DC CONVERTER SMD TSSOP20

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

Specifications

Topology Boost (Step Up)
Input Voltage Min 2.5V
Input Voltage Max 25V
No. of Outputs 1Outputs
DC / DC Converter IC Case TSSOP
No. of Pins 20Pins
Output Current 3A
Output Voltage Min -
Output Voltage Max 40V
Switching Frequency 4.3MHz
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Base Number 3477
Frequency 1.15MHz
Operating Temperature Min -40°C
Operating Temperature Range -40°C to +85°C
Output Voltage 42V
Primary Input Voltage 25V
Supply Voltage Min 2.5V
Switch Output Current Isw Max 5A
Termination Type Surface Mount Device
Voltage Regulator Type Step Up

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LT3477EFE#PBF?

Additional datasheets, footprints and schematics for LT3477EFE#PBF are listed on our Part Details page. You can also find images and similar parts to LT3477EFE#PBF on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LT3477EFE#PBF on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LT3477EFE#PBF price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LT3477EFE#PBF fall under?

The LT3477EFE#PBF is listed under Step-Up (Boost) LED Drivers.

Can I view similar or alternative parts?

You can view similar parts to LT3477EFE#PBF when available in the Step-Up (Boost) 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 LT3477EFE#PBF you can contact the distributor directly for product support, shipping queries etc.

Is the LT3477EFE#PBF RoHS compliant?

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

Which authorised distributors for LT3477EFE#PBF have stock available?

Authorised distributors including Analog Devices, Newark Electronics, element14, Farnell and Chip One Stop have stock available or on a lead time for LT3477EFE#PBF.

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