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

Infineon Technologies IFX27001TFV15ATMA1

Name: IFX27001TFV15ATMA1
Brand: Infineon Technologies
SKU: IFX27001TFV15ATMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IFX27001TFV15ATMA1

Manufacturer:: Infineon Technologies

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

Package:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Datasheet:: IFX27001TFV15ATMA1.pdf

Description:: IC REG LINEAR FIXED LDO REG

Quantity:: RFQ Add To RFQ list

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Inventory:12,500

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Product details

Overview

IFX27001TFV15ATMA1 from Infineon Technologies is a fixed-output 1.5 V, 1.0 A linear voltage regulator in PG-TO252-3 (DPAK) package, featuring 1.0 V typical dropout at 100 mA, -40 °C to 125 °C junction temperature range, and integrated short-circuit and overtemperature protection. It supplies microprocessor subsystems in industrial HDTV power rails where input up to 40 V must be regulated with low-noise, stable output.

For engineers reviewing the IFX27001TFV15ATMA1 datasheet, IFX27001TFV15ATMA1 pinout, IFX27001TFV15ATMA1 application, or IFX27001TFV15ATMA1 equivalent, key selection criteria include dropout voltage vs. load current, thermal resistance (R_thJA = 27 K/W on 2s2p FR4), PSRR (65 dB at 120 Hz), RMS output noise (30 ppm of V_Q), and guaranteed 1.45–1.55 V output across full load and input range.

Technical Context

The IFX27001TFV15ATMA1 implements an NPN-based monolithic linear regulation architecture with internal reference (1.25 V typ.) and feedback control loop. Its fixed 1.5 V output is trimmed during production, eliminating external resistor networks required by adjustable versions.

Protection logic includes foldback current limiting (1000–2200 mA trip threshold), thermal shutdown activation at T_j ≥ 150 °C, and safe operating area (SOA) enforcement via internal current sensing. Input-to-output differential must exceed V_DR + V_Q for regulation, with minimum load current of 1–5 mA to maintain stability.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	1.5 V ±50 mV (1.45–1.55 V) across 10 mA–1.0 A load and 2.9–40 V input
Max Output Current	1.0 A continuous; current limit activates at 1.0–2.2 A depending on VI–VQ
Dropout Voltage	1.00–1.40 V (100 mA–1.0 A); defines minimum VI needed to sustain regulation
PSRR	65 dB at 120 Hz; suppresses ripple from upstream switching converters
RMS Output Noise	30 ppm of V_Q (≈45 µV RMS at 1.5 V); critical for analog/RF supply domains
Thermal Resistance	R_thJA = 27 K/W (2s2p board); requires heatsink area ≥300 mm² for full 1 A operation at 125 °C ambient
Junction Temp Range	-40 °C to +125 °C operating; absolute max 150 °C with protection activation

Pinout & Package

IFX27001TFV15ATMA1 uses the PG-TO252-3 (DPAK) surface-mount package with exposed thermal tab (Pin 2). The tab is electrically connected to the output (Q) and serves as primary heat path to PCB copper.

Pin/Terminal	Circuit Role	Design Meaning
GND (Pin 1)	Ground reference	Return path for internal bias and feedback; connect directly to low-impedance ground plane
Q / Tab (Pin 2)	Regulated output	Delivers 1.5 V; requires ≥10 µF output capacitor (ESR ≤10 Ω); tab must be soldered to thermal pad
I (Pin 3)	Input supply	Accepts 2.9–40 V DC; place local 10 µF ceramic + bulk electrolytic near this pin

Key Features

Feature	Design Value
Fixed 1.5 V output	Eliminates external resistor divider; reduces BOM count and layout sensitivity
Integrated thermal shutdown	Auto-recovery after cooldown; prevents permanent damage during sustained overload
Short-circuit foldback current limit	Reduces power dissipation during output fault; maintains safe SOA under 0 Ω load
Low ESR capacitor support	Stable with 10 µF output cap (ESR ≤10 Ω); compatible with polymer and ceramic types
RoHS-compliant green product	Meets EU Directive 2011/65/EU; no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE

Applications

Industrial HMI Power Supply

HDTV Mainboard LDO Rail

Use Scenario: Powering ARM Cortex-A9 SoC I/O banks and DDR3L termination in factory-floor HMIs exposed to 24 VDC bus transients.

IC Role / Device Role / Timing Role: Primary 1.5 V LDO delivering clean, low-noise supply to memory interface circuitry.

Use Value: 65 dB PSRR rejects ripple from adjacent 24 V-to-5 V buck converter; 1.0 A rating supports burst-mode DDR3L current peaks.

Use Scenario: Regulating 1.5 V for HDMI PHY and audio codec digital cores in 4K UHD television mainboards.

IC Role / Device Role / Timing Role: Fixed-output linear regulator supplying timing-critical digital logic with minimal jitter coupling.

Use Value: 30 ppm RMS noise ensures <1 ps RMS jitter on HDMI clock recovery paths; thermal shutdown protects against enclosure overheating.

Network Router CPU Core Auxiliary

Appliance MCU Subsystem Rail

Use Scenario: Providing 1.5 V to auxiliary management MCU and PCIe switch configuration logic in enterprise routers with 48 V PoE-derived input.

IC Role / Device Role / Timing Role: Secondary LDO rail decoupling high-speed serial interfaces from noisy main 3.3 V domain.

Use Value: 1.0 V dropout enables operation down to 2.5 V input margin; R_thJA = 27 K/W allows direct mounting on 2-layer router PCB without extra heatsink.

Use Scenario: Powering 1.5 V logic in smart washing machine control boards where 24 V battery backup must regulate through wide temperature swings (-25 °C to +70 °C ambient).

IC Role / Device Role / Timing Role: Robust linear regulator maintaining MCU core voltage during motor startup surges and ESD events.

Use Value: -40 °C to 125 °C T_j rating ensures reliability across storage, transport, and operational phases; built-in ESD protection (2 kV HBM) withstands panel button discharge.

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; 400 mA max; lower quiescent current (70 µA)	Not suitable for 1.5 V rail; used in automotive sensor supply	Select only if system requires 5 V and automotive qualification (AEC-Q100 Grade 1)
LD1117S15TR	1.5 V fixed; 800 mA max; higher dropout (1.1–1.3 V typ.); TO-220/TO-252 packages	Lacks overtemperature shutdown hysteresis; lower PSRR (55 dB)	Acceptable for cost-sensitive non-automotive designs where 200 mA headroom and 10 dB PSRR margin are acceptable

Compared with TLE4275G and LD1117S15TR, IFX27001TFV15ATMA1 uniquely delivers 1.0 A at 1.5 V with integrated thermal foldback, 65 dB PSRR, and validated operation up to 125 °C junction - making it optimal for high-current, thermally constrained industrial and consumer electronics requiring precise low-noise regulation.

Availability

IFX27001TFV15ATMA1 is available at Aetrix Electronics and suitable for industrial HMI power supplies, HDTV mainboard LDO rails, network router CPU auxiliary rails, and appliance MCU subsystem rails requiring stable component supply across extended temperature and long-lifecycle programs.

Supply support for IFX27001TFV15ATMA1 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 ISO 14001.

The IFX27001 series belongs to Infineon's standard power linear regulator product line, designed specifically for high-reliability industrial and consumer applications demanding robust thermal protection, wide input range (up to 40 V), and stable low-noise output under dynamic load conditions.

FAQ

What is the minimum input voltage required for regulation at full 1.0 A load?

The minimum input voltage is determined by V_Q + V_DR, where V_DR = 1.40 V max at 1.0 A. For 1.5 V output, VI must be ≥2.9 V to maintain regulation. Below this, the device enters dropout and output drops linearly with input.

Can IFX27001TFV15ATMA1 be used without an output capacitor?

No. A minimum 10 µF output capacitor with ESR ≤10 Ω is mandatory for stability per datasheet Section 3.2. Omitting it causes oscillation and potential thermal runaway due to phase margin loss in the internal control loop.

How does the thermal shutdown behave during continuous overload?

When junction temperature reaches ~150 °C, thermal shutdown disables the pass transistor. After cooling below hysteresis threshold (~135 °C), the device auto-restarts. This cycle repeats under sustained overload but prevents permanent damage per Absolute Maximum Ratings Table 4.1.4.

Is the PG-TO252-3 package lead-free and RoHS-compliant?

Yes. IFX27001TFV15ATMA1 is marked "Green Product" in the datasheet and complies with EU RoHS Directive 2011/65/EU. The PG-TO252-3 package uses lead-free matte tin plating and halogen-free molding compound, verified per Infineon's material declarations.

IFX27001TFV15ATMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Packaging:: Bulk

Product Status:: Active

Output Configuration:: Positive

Output Type:: Fixed

Number of Regulators:: 1

Voltage - Input (Max):: 40V

Voltage - Output (Min/Fixed):: 1.5V

Voltage - Output (Max):: -

Voltage Dropout (Max):: 1.4V @ 1A

Current - Output:: 1A

Current - Quiescent (Iq):: 1.6 mA

Current - Supply (Max):: -

PSRR:: 65dB (120Hz)

Control Features:: -

Protection Features:: Over Current, Over Temperature, Short Circuit

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-TO252-3-11

IFX27001TFV15ATMA1 FAQ

1.How can I place an order for IFX27001TFV15ATMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for IFX27001TFV15ATMA1 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 IFX27001TFV15ATMA1 reliable?

The price and inventory of IFX27001TFV15ATMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IFX27001TFV15ATMA1 is usually 5 days.

3.What payment methods are accepted for IFX27001TFV15ATMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IFX27001TFV15ATMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IFX27001TFV15ATMA1?

IFX27001TFV15ATMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IFX27001TFV15ATMA1 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 IFX27001TFV15ATMA1?

For technical support, including IFX27001TFV15ATMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IFX27001TFV15ATMA1 requirements.

6.How does Aetrix verify that IFX27001TFV15ATMA1 is sourced from the original manufacturer or authorized distributors?

All IFX27001TFV15ATMA1 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 IFX27001TFV15ATMA1 meets industry standards.

7.What is the process for return or replacement of IFX27001TFV15ATMA1?

All IFX27001TFV15ATMA1 units undergo pre-shipment inspection (PSI). If there is an issue with IFX27001TFV15ATMA1, 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 IFX27001TFV15ATMA1 part is unused and in its original packaging.

Return procedure for IFX27001TFV15ATMA1:

1.Submit a request within 90 days.

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

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