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Switching Voltage Regulators LT3800 - High-Voltage Synchronous Current Mode Step-Down Controller

Ovaga Certification

Brands: Analog Devices, Inc

Mfr.Part #: LT3800EFE

Datasheet: LT3800EFE Datasheet (PDF)

Package/Case: TSSOP16

Product Type: Embedded Processors & Controllers

RoHS Status:

Stock Condition: 3275 pcs, New Original

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Please submit RFQ for LT3800EFE or email to us: Email: [email protected], we will contact you within 12 hours.

LT3800EFE General Description

LT3800EFE is a specific integrated circuit (IC) manufactured by Linear Technology, which is now part of Analog Devices. It is a high-performance current mode PWM controller designed for step-down DC-DC converter applications.



  • Wide input voltage range: 4V to 36V
  • High switch current rating: up to 3.5A
  • High switching frequency: up to 500kHz
  • Programmable soft-start
  • Adjustable output voltage
  • Overvoltage protection
  • Undervoltage lockout
  • Thermal shutdown


  • Power supplies for industrial, automotive, and telecom applications
  • Battery chargers
  • LED lighting drivers
  • Point-of-load regulators
  • High-power audio amplifiers
  • Distributed power systems


Parameter Value Parameter Value
feature-topology Step Down feature-number-of-outputs 1
feature-output-voltage-v 1.231 to 36 feature-minimum-output-current-a
feature-maximum-output-current-a feature-minimum-input-voltage-v 4
feature-maximum-switching-frequency-khz 210 feature-maximum-input-voltage-v 60
feature-operating-supply-voltage-v 4 to 60 feature-maximum-supply-current-ma 0.02(Typ)
feature-minimum-switching-frequency-khz 190 feature-synchronous-rectifier Yes
feature-synchronous-clock No feature-packaging
feature-rad-hard feature-pin-count 16
feature-supplier-package TSSOP EP feature-standard-package-name1 SOP
feature-cecc-qualified No feature-esd-protection
feature-military No feature-aec-qualified Yes
feature-aec-qualified-number feature-auto-motive No
feature-p-pap No feature-eccn-code EAR99
feature-svhc Yes


Shipping Type Ship Fee Lead Time
DHL DHL $20.00-$40.00 (0.50 KG) 2-5 days
Fedex Fedex $20.00-$40.00 (0.50 KG) 2-5 days
UPS UPS $20.00-$40.00 (0.50 KG) 2-5 days
TNT TNT $20.00-$40.00 (0.50 KG) 2-5 days
EMS EMS $20.00-$40.00 (0.50 KG) 2-5 days
REGISTERED AIR MAIL REGISTERED AIR MAIL $20.00-$40.00 (0.50 KG) 2-5 days

Processing Time:Shipping fee depend on different zone and country.


Terms of payment Hand Fee
Wire Transfer Wire Transfer charge US$30.00 banking fee.
Paypal Paypal charge 4.0% service fee.
Credit Card Credit Card charge 3.5% service fee.
Western Union Western Union charge US$0.00 banking fee.
Money Gram Money Gram charge US$0.00 banking fee.


1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


  • Product

    Step1 :Product

  • Vacuum packaging

    Step2 :Vacuum packaging

  • Anti-static bag

    Step3 :Anti-static bag

  • Individual packaging

    Step4 :Individual packaging

  • Packaging boxes

    Step5 :Packaging boxes

  • bar-code shipping tag

    Step6 :bar-code shipping tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

  • ESD
  • ESD

Datasheet PDF

Preliminary Specification LT3800EFE PDF Download

Key points

  • The LT3800EFE is a power management chip designed by Linear Technology (now part of Analog Devices). It is a high voltage, high-efficiency DC/DC converter with integrated fault protection features. The chip is specifically designed for automotive and industrial applications, providing a compact solution for power conversion in these environments.
  • Features

    The LT3800EFE is a high efficiency switching regulator controller that features a wide input voltage range, adjustable switching frequency, programmable soft-start, and a precision 1.23V reference voltage. It is designed to deliver a constant output voltage and is suitable for diverse applications such as automotive electronics, industrial systems, and telecommunications.
  • Pinout

    The LT3800EFE is a PWM controller with a pin count of 16. The function of this device is to regulate the power output of a DC/DC converter or a switching regulator.
  • Manufacturer

    The manufacturer of the LT3800EFE is Linear Technology Corporation, a semiconductor company.
  • Application Field

    The LT3800EFE is a high voltage flyback converter designed for multiple applications including LCD monitors, VCRs and scanners. It features a wide input voltage range, programmable output voltage, and high efficiency.
  • Package

    The LT3800EFE chip comes in an 8-pin TSSOP (Thin Shrink Small Outline Package) package type. Its form factor is rectangular with a small thickness. The size of the package is 3mm x 5mm.

We provide high quality products, thoughtful service and after sale guarantee

  • Product

    We have rich products, can meet your various needs.

  • quantity

    Minimum order quantity starts from 1pcs.

  • shipping

    Lowest international shipping fee starts from $0.00

  • guarantee

    365 days quality guarantee for all products

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