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PT4561A PT4561A is an isolated DC/DC converter from Texas Instruments, part of the PT4560 series. It delivers 3.3V at 8A (30W) from a 36-75V input, with 1500VDC isolation and a compact 19-SIP package.
Mfr Part #:

PT4561A

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
PT4561A is an isolated DC/DC converter from Texas Instruments, part of the PT4560 series. It delivers 3.3V at 8A (30W) from a 36-75V input, with 1500VDC isolation and a compact 19-SIP package.
Total Stock: 4 pcs
$ Price Range: $61.25

PT4561A Available from 1 distributor

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PT4561A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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PT4561A Description

Short technical summary and product information.

The PT4561A is an isolated DC/DC converter module from the PT4560 series by Texas Instruments. It accepts a wide input voltage range of 36V to 75V (48V nominal) and provides a single regulated 3.3V output capable of delivering up to 8A of continuous current, with a total output power of 30W. The module features 1500VDC input-to-output isolation and is designed for commercial ITE (Information Technology Equipment) applications.

 

The converter includes an under-voltage lockout (UVLO) for reliable startup and shutdown. Additional protection features include output current limiting, short-circuit protection, and over-temperature shutdown. The device also provides differential remote sensing for improved load regulation and a remote on/off control. An external 330µF electrolytic capacitor is required on the output for proper operation.

 

Housed in a 19-pin single in-line package (19-SIP) with through-hole, right-angle mounting, the PT4561A is designed for easy integration into board-level power architectures. The operating temperature range spans -40°C to 85°C, and typical efficiency is 80%.

PT4561A Quick Information

Product Type: DC DC Converter
Series: PT4560
Canonical Name: PT4561A Isolated DC/DC Converter, 3.3V Output, 30W, 19-SIP
Subcategory: Isolated Module

PT4561A Compliance

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

PT4561A Estimated Pricing

Qty Low High
5+ $61.25 $61.25

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

PT4561A Features

  • Isolated DC/DC converter with 1500VDC isolation.
  • Wide input range from 36V to 75V.
  • Single 3.3V output at 8A continuous.
  • UVLO and over-temperature protection.
  • Through-hole right-angle 19-SIP package.

PT4561A Applications

  • Suitable for ITE (commercial) equipment.
  • Ideal for telecom power systems.
  • Used in distributed power architectures.
  • Board-mounted power for industrial controls.

PT4561A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the PT4561A?

The input voltage range is 36V to 75V, with a nominal input of 48V.

What is the output voltage and current of the PT4561A?

It provides a single 3.3V output at up to 8A, with a total output power of 30W.

What is the isolation voltage rating?

The isolation voltage is 1500 VDC minimum.

What package type does the PT4561A use?

It is housed in a 19-SIP (Single In-line Package) with through-hole, right-angle mounting.

What is the operating temperature range?

The operating temperature range is -40°C to 85°C.

Is the PT4561A RoHS compliant?

It is listed as RoHS3 Compliant, but this status is unverified and low confidence.

What protection features are included?

The converter includes under-voltage lockout (UVLO), output current limit, short-circuit protection, and over-temperature shutdown.

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