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LT8645SEV#PBF The Analog Devices LT8645SEV#PBF is an 8A synchronous step-down switching regulator. It operates with an input voltage range from 3.4V to 65V and features an adjustable output.
Mfr Part #:

LT8645SEV#PBF

Available from 3 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The Analog Devices LT8645SEV#PBF is an 8A synchronous step-down switching regulator. It operates with an input voltage range from 3.4V to 65V and features an adjustable output.
✓ Total Stock: 63 pcs
$ Price Range: $1.08

LT8645SEV#PBF Available from 3 distributors

✓ Authorised
✓ Non-Authorised
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LT8645SEV#PBF Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Operating Voltage
Output Configuration
Output Current
Output Type
Output Voltage
Quiescent Current
Supplier Device Package
Synchronous Rectifier
Topology
Voltage
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LT8645SEV#PBF Description

Short technical summary and product information.

The LT8645SEV#PBF from Analog Devices is a high-performance synchronous step-down switching regulator. It is part of the Silent Switcher 2 architecture, designed to minimize EMI emissions while maintaining high efficiency, even at high switching frequencies.

 

This regulator supports a wide input voltage range of 3.4V to 65V and can deliver up to 8A of output current. The output voltage is adjustable, and the device features a fast minimum switch on-time of 40ns, enabling high step-down ratios. It operates with a switching frequency adjustable from 200kHz to 2.2MHz.

 

Key electrical characteristics include high efficiency, up to 95% at 1MHz and 12VIN to 5VOUT, and up to 94% at 2MHz. It also boasts ultralow quiescent current of 2.5μA in Burst Mode operation and an output ripple of less than 10mVp-p.

 

The LT8645SEV#PBF is available in a 32-lead LQFN package with exposed pad, suitable for surface mounting. It operates within a temperature range of -40°C to 125°C (TJ).

LT8645SEV#PBF Quick Information

Product Type: DC-DC Switching Regulator
Series: Silent Switcher 2
Canonical Name: LT8645SEV#PBF Synchronous Step-Down Switching Regulator
Subcategory: Step-Down

LT8645SEV#PBF Compliance

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

LT8645SEV#PBF Estimated Pricing

Qty Low High
1+ $1.08 $1.08

Estimated market price range - modelled values for guidance only, not live distributor offers.

LT8645SEV#PBF Features

  • 65V, 8A synchronous step-down regulator.
  • Ultralow EMI emissions, layout insensitive.
  • Wide 3.4V to 65V input voltage range.
  • High efficiency up to 95% at 1MHz.
  • 2.5μA quiescent current in Burst Mode.

LT8645SEV#PBF Applications

  • Used in automotive battery powered systems.
  • Ideal for industrial point-of-load regulation.
  • Suitable for telecommunications power supplies.
  • Works in high step-down ratio applications.

LT8645SEV#PBF FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range?

3.4V to 65V.

What packages are available?

32-LQFN (6x4) and 32-TFQFN Exposed Pad.

What is the operating temperature range?

-40°C to 125°C (junction).

What is the output current capability?

8A.

What is the switching frequency range?

200kHz to 2.2MHz.

Does the device have synchronous rectification?

Yes.

What is the quiescent current?

2.5μA.

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