LT8640EUDC#PBF The Analog Devices LT8640EUDC#PBF is a 42V, 5A synchronous step-down switching regulator. It features an ultralow 2.5µA quiescent current and Silent Switcher architecture for minimal EMI.
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LT8640EUDC#PBF

Available from 1 distributors
Mfr Name: AD
AD
The Analog Devices LT8640EUDC#PBF is a 42V, 5A synchronous step-down switching regulator. It features an ultralow 2.5µA quiescent current and Silent Switcher architecture for minimal EMI.
✓ Total Stock: 3,551 pcs

LT8640EUDC#PBF Available from 1 distributor

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LT8640EUDC#PBF Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Input Voltage
Lead Style
Mounting Style
Number of Outputs
Output Voltage
Package / Case
Quiescent Current
SVHC Present
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LT8640EUDC#PBF Description

Short technical summary and product information.

The LT8640EUDC#PBF from Analog Devices is a high-performance synchronous step-down switching regulator designed for efficiency and low EMI emissions. It operates with an input voltage range of 3.4V to 42V and can deliver up to 5A of continuous output current, with a peak transient output of 7A.

 

This regulator boasts an ultralow quiescent current of 2.5µA when the output is in full regulation, making it suitable for applications requiring high efficiency at very small load currents. Its Silent Switcher architecture minimizes electromagnetic interference (EMI), while supporting high switching frequencies up to 3MHz. The device offers a fast minimum switch on-time of 30ns, enabling high VIN to low VOUT conversions at high frequencies.

 

The LT8640EUDC#PBF is available in a compact 18-lead 3mm x 4mm QFN package, suitable for surface-mount (SMD/SMT) applications. It operates within a temperature range of -40°C to +125°C. The device supports adjustable and synchronizable operation from 200kHz to 3MHz, with an output voltage range of 0.97V to 41.9V.

LT8640EUDC#PBF Quick Information

Product Type: Switching Voltage Regulator
Series: LT8640
Canonical Name: LT8640EUDC#PBF 42V 5A Synchronous Step-Down Silent Switcher
Subcategory: Switching Voltage Regulators

LT8640EUDC#PBF Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

LT8640EUDC#PBF Features

  • 42V, 5A synchronous step-down regulator
  • Ultralow 2.5µA quiescent current
  • Silent Switcher architecture for low EMI
  • High efficiency up to 96%
  • 30ns fast minimum switch on-time

LT8640EUDC#PBF Applications

  • Automotive and industrial supplies
  • General purpose step-down converters
  • High efficiency power solutions
  • Low EMI emission applications

LT8640EUDC#PBF FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum input voltage for the LT8640EUDC#PBF?

The maximum input voltage is 42V.

What is the maximum continuous output current?

The maximum continuous output current is 5A.

What is the quiescent current of the LT8640EUDC#PBF?

The quiescent current is 2.5µA when the output is in full regulation.

What is the switching frequency range?

The switching frequency is adjustable from 200kHz to 3MHz.

What package type is the LT8640EUDC#PBF supplied in?

It is supplied in an 18-lead QFN package.

What is the operating temperature range?

The operating temperature range is -40°C to +125°C.

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