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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Infineon Technologies IFX25001TCV85ATMA1

Name: IFX25001TCV85ATMA1
Brand: Infineon Technologies
SKU: IFX25001TCV85ATMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IFX25001TCV85ATMA1

Manufacturer:: Infineon Technologies

Category:: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Package:: TO-263-4, D2PAK (3 Leads + Tab), TO-263AA

Datasheet:: IFX25001TCV85ATMA1.pdf

Description:: IC REG LINEAR VOLTAGE REG

Quantity:: RFQ Add To RFQ list

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Inventory:18,000

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Product details

Overview

IFX25001TCV85ATMA1 from Infineon is a low-dropout linear voltage regulator delivering a fixed 8.5 V output with up to 400 mA continuous current, 250–500 mV dropout at 250 mA, wide 9.5–40 V input range, and integrated overtemperature shutdown, reverse polarity protection, and current limiting. It is used in HDTV power rails where stable mid-voltage regulation under variable load and thermal stress is required.

For engineers reviewing the IFX25001TCV85ATMA1 datasheet, IFX25001TCV85ATMA1 pinout, IFX25001TCV85ATMA1 application, or IFX25001TCV85ATMA1 equivalent, key selection criteria include output voltage tolerance (±4%), thermal resistance (R_thJA = 22 K/W typ. for PG-TO263-3), dropout behavior at full load, ESR-stable output capacitance (≥22 µF, ≤3 Ω), and junction temperature limit (125 °C operating).

Technical Context

The IFX25001TCV85ATMA1 implements a bandgap-referenced control amplifier driving a pass transistor with saturation monitoring and thermal foldback. Its protection circuitry includes dedicated temperature sensing with 151–200 °C shutdown threshold and current-limit detection that triggers foldback above 400 mA nominal.

It operates across -40 °C to +125 °C ambient, supports input transients up to ±42 V (absolute max), and requires a minimum 22 µF/≤3 Ω ESR ceramic or tantalum output capacitor for stability-verified across all PG-TO263-3 variants including this V85 version.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	8.5 V ±4% (8.16–8.84 V) at 5–400 mA load; ensures stable logic supply for 8.5 V-tolerant analog subsystems
Dropout Voltage	250–500 mV at 250 mA; enables operation down to 8.75 V input while maintaining regulation
Max Input Voltage	40 V functional range (9.5–40 V); supports 12 V/24 V industrial bus with headroom for surge
Output Current	400 mA continuous, 600–1100 mA short-term limit; sustains peak loads in set-top box audio amplifiers
Thermal Resistance	R_thJA = 22 K/W typical (PG-TO263-3, FR4 2s2p board); allows 400 mA at ≤85 °C ambient without heatsink
PSRR	60 dB at 100 Hz; suppresses ripple from upstream switching converters feeding HDTV mainboard
Quiescent Current	8–15 mA at 250 mA load; balances efficiency vs. transient response in always-on subsystems

Pinout & Package

IFX25001TCV85ATMA1 uses the PG-TO263-3 (D²PAK) thermally enhanced surface-mount package with exposed heat slug tied internally to GND. Pin 1 is Input, Pin 2 is GND (heat slug), Pin 3 is Output.

Pin/Terminal	Circuit Role	Design Meaning
1 (Input)	Positive DC supply input	Connect to unregulated source ≥9.5 V; requires local 100 nF ceramic bypass capacitor to GND
2 (GND / Heat Slug)	Ground reference and thermal path	Internally connected to exposed metal pad; must be soldered to ≥600 mm² copper pour for R_thJA = 33 K/W
3 (Output)	Regulated 8.5 V output	Requires ≥22 µF low-ESR capacitor (≤3 Ω @ 10 kHz) between Output and GND for loop stability

Key Features

Feature	Design Value
Reverse Polarity Protection	Withstands -42 V input without damage; eliminates need for external series diode in battery-powered systems
Overtemperature Shutdown	Triggers at 151–200 °C junction temperature with automatic recovery after cooldown; prevents thermal runaway in enclosed enclosures
Current Limit Foldback	Reduces output current to <200 mA during sustained overload; maintains device integrity without latch-up
Wide Operating Temperature	-40 °C to +125 °C junction range; qualified for industrial-grade HDTV backlights and network router PoE interfaces

Applications

HDTV Power Management

Industrial PLC I/O Module

Use Scenario: Regulating 8.5 V rail for LCD timing controller and backlight driver ICs in flat-panel TVs.

IC Role / Device Role / Timing Role: Primary linear post-regulator converting 12 V DC-DC output to noise-sensitive analog supply.

Use Value: 60 dB PSRR at 100 Hz suppresses switching noise from upstream converter, preventing visible screen artifacts.

Use Scenario: Providing isolated 8.5 V bias for analog sensor signal conditioning circuits in factory automation controllers.

IC Role / Device Role / Timing Role: Stable voltage reference source for 16-bit ADC front-end stages requiring <1 mV drift over temperature.

Use Value: ±0.5 mV/K output drift ensures <±6 mV total error across -40 °C to +85 °C ambient operating range.

Game Console Audio Subsystem

Network Router PoE Interface

Use Scenario: Supplying clean 8.5 V to Class-D audio amplifier ICs in gaming consoles with dynamic load profiles.

IC Role / Device Role / Timing Role: Low-noise LDO delivering fast transient response to handle burst audio peaks up to 400 mA.

Use Value: 250 mV dropout at 250 mA enables efficient operation from 9 V intermediate bus, minimizing heat dissipation.

Use Scenario: Generating 8.5 V auxiliary supply from PoE-derived 12 V for Ethernet PHY and management MCU.

IC Role / Device Role / Timing Role: Fault-tolerant regulator with reverse polarity and overtemperature protection in unattended infrastructure gear.

Use Value: Integrated protections eliminate need for discrete TVS and thermal cutoff, reducing BOM count by two components.

Equivalent & Alternatives

The following parts are listed as comparable options for similar fixed-output LDO regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLE4275G	5 V fixed output only; 400 mA rating; R_thJA = 30 K/W (TO-252); no reverse polarity protection	Designed for automotive 5 V microcontroller supplies; lacks 8.5 V option and reverse-input hardening	Select only if 5 V output suffices and system design includes external reverse-protection diode
LM2940CT-8.5	8.5 V output; 1 A rating; R_thJA = 50 K/W (TO-220); dropout 0.5 V @ 500 mA; no integrated thermal shutdown hysteresis	General-purpose industrial LDO; higher dropout and lower thermal performance than IFX25001TCV85ATMA1	Prefer when >400 mA peak current needed and board space allows TO-220 mounting with heatsink

Compared with TLE4275G and LM2940CT-8.5, IFX25001TCV85ATMA1 uniquely combines 8.5 V output, reverse-polarity immunity, and 22 K/W thermal resistance in PG-TO263-3-enabling compact, robust designs in thermally constrained consumer electronics without external protection components.

Availability

IFX25001TCV85ATMA1 is available at Aetrix Electronics and suitable for HDTV power management, industrial PLC I/O modules, game console audio subsystems, and network router PoE interfaces requiring stable component supply with long lifecycle visibility.

Supply support for IFX25001TCV85ATMA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive ICs, and industrial control solutions, with global manufacturing and quality certification to ISO/TS 16949 and AEC-Q100 standards.

The IFX25001 series belongs to Infineon's industrial-grade linear regulator product line, designed specifically for high-reliability, wide-input-range applications in consumer electronics and factory automation where fault resilience and thermal robustness are critical.

FAQ

What is the minimum input voltage required for regulation at full 400 mA load?

The IFX25001TCV85ATMA1 requires a minimum input voltage of 9.5 V to maintain 8.5 V output regulation at 400 mA load, based on its maximum dropout of 500 mV per datasheet Section 5.1.4. Below 9.5 V, output voltage drops linearly with input; operation below 9.5 V is outside functional range and not guaranteed.

Can this regulator be used without an output capacitor?

No. A minimum 22 µF output capacitor with ESR ≤3 Ω at 10 kHz is mandatory for closed-loop stability, as specified in Section 4.2.5–4.2.6 of the datasheet. Omitting it causes oscillation and potential damage; ceramic, tantalum, or polymer capacitors meeting these specs are acceptable.

Does the heat slug require electrical isolation from the PCB ground plane?

No. The heat slug (Pin 2) is internally connected to GND and must be soldered directly to a large, low-impedance PCB copper pour serving as both thermal sink and ground return path. Isolating it degrades thermal performance and violates the JEDEC-compliant layout requirements in Section 4.3.

Is the 8.5 V output trimmed at final test, and what is its initial accuracy?

Yes-the 8.5 V output is laser-trimmed during production. Initial accuracy is ±4% (8.16–8.84 V) across 5–400 mA load and -40 °C to +125 °C junction temperature, as verified in Section 5.1.1 of the datasheet. This includes all process, voltage, and temperature variation effects.

IFX25001TCV85ATMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: TO-263-4, D2PAK (3 Leads + Tab), TO-263AA

Packaging:: Bulk

Product Status:: Active

Output Configuration:: Positive

Output Type:: Fixed

Number of Regulators:: 1

Voltage - Input (Max):: 40V

Voltage - Output (Min/Fixed):: 8.5V

Voltage - Output (Max):: -

Voltage Dropout (Max):: -

Current - Output:: 400mA

Current - Quiescent (Iq):: 220 µA

Current - Supply (Max):: 30 mA

PSRR:: 60dB (100Hz)

Control Features:: -

Protection Features:: Antisaturation, Over Current, Over Temperature, Reverse Polarity, Short Circuit

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: PG-TO263-3-1

IFX25001TCV85ATMA1 FAQ

1.How can I place an order for IFX25001TCV85ATMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for IFX25001TCV85ATMA1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for IFX25001TCV85ATMA1 reliable?

The price and inventory of IFX25001TCV85ATMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IFX25001TCV85ATMA1 is usually 5 days.

3.What payment methods are accepted for IFX25001TCV85ATMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IFX25001TCV85ATMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IFX25001TCV85ATMA1?

IFX25001TCV85ATMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IFX25001TCV85ATMA1 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for IFX25001TCV85ATMA1?

For technical support, including IFX25001TCV85ATMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IFX25001TCV85ATMA1 requirements.

6.How does Aetrix verify that IFX25001TCV85ATMA1 is sourced from the original manufacturer or authorized distributors?

All IFX25001TCV85ATMA1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that IFX25001TCV85ATMA1 meets industry standards.

7.What is the process for return or replacement of IFX25001TCV85ATMA1?

All IFX25001TCV85ATMA1 units undergo pre-shipment inspection (PSI). If there is an issue with IFX25001TCV85ATMA1, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The IFX25001TCV85ATMA1 part is unused and in its original packaging.

Return procedure for IFX25001TCV85ATMA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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