PT4205C Texas Instruments Integrated Circuit (Small Outline Packages) In Stock

Name: PT4205C
Brand: Texas Instruments
SKU: PT4205C
Availability: InStock

Texas Instruments PT4205C is an isolated DC/DC converter producing a regulated 3.3V output at up to 1.8A (6W) from a 18V to 36V input, nominally 24V. Housed in an 18-pin SIP module, it provides galvanic isolation for industrial and communications power supply designs.

OBSOLETEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

PT4205CSmall Outline Packages

Quick Facts

Manufacturer: Texas Instruments
Package: Small Outline Packages
Pin Count: 18
Lifecycle: OBSOLETE
Datasheet: PT4205C Datasheet PDF
Category: Integrated Circuit
Temp Range: -40.0°C to 85.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of PT4205C?

Regulated 3.3V isolated output delivering up to 1.8A (6W) from a 24V nominal input, providing a complete single-chip isolated power solution for industrial 24V bus systems
Input voltage range of 18V to 36V accommodating full industrial 24V rail variation without external pre-regulation or additional components
18-pin SIP module format enabling straightforward through-hole board mounting with built-in isolation, eliminating the need for a separate transformer design

What is PT4205C used for?

The PT4205C is designed for field bus interface cards, industrial PLCs, and process control equipment that require a galvanically isolated 3.3V logic supply derived from a standard 24V industrial DC bus. Its 6W power delivery and 18V to 36V input tolerance also suit telecom line cards and distributed control systems where noise isolation between the high-voltage input and sensitive digital logic is critical.

What are the specifications of PT4205C?

Pbfree Code	No
YTEOL	0
Analog IC - Other Type	DC-DC REGULATED POWER SUPPLY MODULE
Input Voltage-Max	36V
Input Voltage-Min	18V
Input Voltage-Nom	24V
JESD-30 Code	R-XDSO-G18
Number of Functions	1
Number of Outputs	1
Output Current-Max	1.8A
Output Voltage-Max	3.432V
Output Voltage-Min	3.168V
Output Voltage-Nom	3.3V
Package Body Material	UNSPECIFIED
Package Equivalence Code	GWDIP18,1.1,200
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE
Peak Reflow Temperature (Cel)	NOT SPECIFIED
Qualification Status	Not Qualified
Surface Mount	YES
Technology	HYBRID
Temperature Grade	INDUSTRIAL
Terminal Form	GULL WING
Terminal Pitch	5mm
Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	NOT SPECIFIED
Total Power Output-Max	6W
Trim/Adjustable Output	YES
Package	Small Outline Packages

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
ECCN	EAR99

Where can I find the PT4205C datasheet?

PT4205C Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for PT4205C?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

What output voltage and maximum output current does the PT4205C deliver, and is 6W sufficient for a typical microcontroller plus peripherals?

The PT4205C delivers a regulated 3.3V output at up to 1.8A, providing 6W of isolated power, which is ample for a microcontroller, FPGA, or DSP with several SPI/I2C peripherals drawing under 1.5A total at 3.3V.

What input voltage range does the PT4205C support, and does it accommodate an unregulated 24V bus that may swing during load transients?

The PT4205C accepts input voltages from 18V to 36V, covering the full ±50% variation seen on typical unregulated 24V industrial bus rails during load transients, inrush events, and generator switching, without requiring an upstream regulator.

Does the PT4205C provide galvanic isolation, and what safety or EMI benefit does that offer in a PLC design?

Yes, the PT4205C provides galvanic isolation between the 24V input bus and the 3.3V output, breaking ground loops, preventing noise coupling from high-voltage actuators into the logic circuitry, and meeting IEC 61010 creepage requirements for industrial control equipment.

How does the 18-pin SIP package of the PT4205C simplify integration compared to a discrete isolated converter design?

The 18-pin SIP module houses the transformer, controller, and filter components internally, reducing the external component count to just a few bypass capacitors and eliminating the transformer winding and safety-creepage PCB layout work required for a discrete isolated converter design.

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.

Aug 6, 2026

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.

Aug 6, 2026

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.

Aug 4, 2026

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.

Aug 4, 2026

Why Buy from FindMyChip

Authorized Source

Verified supply chain with full traceability & inspection

Competitive Pricing

Factory-direct from China distributors, low MOQ

Fast Shipping

DHL Express 3–5 days · FedEx/UPS 5–7 days worldwide

Quality Guaranteed

30-day replacement for defective parts, no questions asked

About Texas Instruments

Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.

View all Texas Instruments parts →

More from Texas Instruments

SN74HC138PWT

Small Outline Packages

Integrated Circuit

MCP6292IDGKT

Small Outline Packages

Integrated Circuit

CD4511BMN

Dual-In-Line Packages

Integrated Circuit

UCC2803DG4

Small Outline Packages

Integrated Circuit

MC33078DRE4

Small Outline Packages

Integrated Circuit

TLV6710DDCT

SOT23 (6-Pin)

Integrated Circuit

AvailabilityIn Stock

Reference Price (USD)

Contact for Price

Buy from 1pc · Factory-direct pricing

pcs

In Stock · 24h Response · Worldwide Shipping

Direct Contact

WhatsApp Inquiry Email RFQ

Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”

Thomas Mueller

Hardware Lead, SensorTech GmbH, Germany

PT4205C Texas Instruments Integrated Circuit (Small Outline Packages) In Stock

What are the key features of PT4205C?

What is PT4205C used for?

What are the specifications of PT4205C?

Compliance & Regulatory

Where can I find the PT4205C datasheet?

What are equivalent replacements for PT4205C?

Frequently Asked Questions

What output voltage and maximum output current does the PT4205C deliver, and is 6W sufficient for a typical microcontroller plus peripherals?

What input voltage range does the PT4205C support, and does it accommodate an unregulated 24V bus that may swing during load transients?

Does the PT4205C provide galvanic isolation, and what safety or EMI benefit does that offer in a PLC design?

How does the 18-pin SIP package of the PT4205C simplify integration compared to a discrete isolated converter design?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Why Buy from FindMyChip

About Texas Instruments

More from Texas Instruments

You May Also Like