BD8643FV-E2 The ROHM Semiconductor BD8643FV-E2 is a flexible synchronous step-down switching regulator. It integrates two low-resistance N-channel MOSFETs and supports an output current of up to 3A.
Mfr Part #:

BD8643FV-E2

Available from 1 distributors
Mfr Name: ROHM Semiconductor
ROHM Semiconductor
The ROHM Semiconductor BD8643FV-E2 is a flexible synchronous step-down switching regulator. It integrates two low-resistance N-channel MOSFETs and supports an output current of up to 3A.
✓ Total Stock: 449 pcs
$ Price Range: $0.92

BD8643FV-E2 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
449 pcs
449 pcs On Request 1 On Request On Request 1009+ On Request On Request

BD8643FV-E2 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
Output Configuration
Output Type
Supplier Device Package
Supplier Package
Synchronous Rectifier
Topology
Voltage

BD8643FV-E2 Description

Short technical summary and product information.

The BD8643FV-E2 from ROHM Semiconductor is a flexible synchronous step-down switching regulator designed for efficient power conversion. It integrates two low-resistance N-channel MOSFETs, enabling it to achieve a 3A continuous output current over a wide input supply range of 4.5V to 18V.

 

This device features current mode operation for fast transient response and easy phase compensation. Key integrated functions include over-current protection, thermal shutdown, under-voltage protection, and a soft-start circuit. The oscillation frequency is programmable from 100kHz to 600kHz.

 

The BD8643FV-E2 is suitable for applications such as FPD, DVD, HDD recorders, STBs, and amusement equipment. It is supplied in a 20-SSOP-B surface-mount package.

 

Key electrical characteristics include a reference voltage of 0.8V ±1%, and an operating temperature range of -20°C to 85°C. The synchronous rectifier design enhances efficiency.

BD8643FV-E2 Quick Information

Product Type: Switching Regulator
Canonical Name: BD8643FV-E2 Synchronous Step-Down Switching Regulator
Subcategory: DC-DC Switching Regulator

BD8643FV-E2 Compliance

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

BD8643FV-E2 Estimated Pricing

Qty Low High
1+ $0.92 $0.92

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

BD8643FV-E2 Features

  • Synchronous step-down switching regulator.
  • Integrates two low-resistance N-channel MOSFETs.
  • Achieves 3A continuous output current.
  • Wide input supply voltage range 4.5V to 18V.
  • Programmable frequency from 100kHz to 600kHz.

BD8643FV-E2 Applications

  • Suitable for FPD applications.
  • Used in DVD players and recorders.
  • Applicable to HDD recorder designs.
  • Designed for Set-Top Box (STB) systems.
  • Can be used in amusement equipment.

BD8643FV-E2 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the BD8643FV-E2?

The input supply voltage range is 4.5V to 18V.

What is the output current capability?

The maximum output current is 3A (absolute maximum 3.5A).

What package is the BD8643FV-E2 available in?

It is available in a 20-pin SSOP-B (20-LSSOP) surface-mount package.

What is the operating temperature range?

The operating temperature range is -20°C to +85°C.

Does the BD8643FV-E2 have over-current protection?

Yes, it includes over-current protection.

What is the switching frequency range?

The switching frequency is programmable from 100kHz to 600kHz.

Is the output voltage adjustable?

Yes, the output voltage is adjustable via an external resistor divider with a reference voltage of 0.8V.

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