Infineon Technologies IFX27001TFV33ATMA1

Overview

IFX27001TFV33ATMA1 from Infineon Technologies is a fixed-output 3.3 V, 1.0 A linear voltage regulator in PG-TO252-3 (DPAK) package, featuring 1.0 V typical dropout voltage, short-circuit and overtemperature protection, and operation across -40 °C to +125 °C junction temperature. It delivers stable power to microprocessor subsystems in industrial HDTV power rails and network router auxiliary supplies.

For engineers reviewing the IFX27001TFV33ATMA1 datasheet, IFX27001TFV33ATMA1 pinout, IFX27001TFV33ATMA1 application, or IFX27001TFV33ATMA1 equivalent, key selection criteria include dropout voltage at 1 A load, thermal resistance (R_thJC = 4 K/W), input voltage range up to 40 V, output tolerance (±3.3% at 10–1000 mA), and ESD robustness (±2 kV HBM).

Technical Context

The IFX27001TFV33ATMA1 implements an NPN-based linear regulation architecture with internal reference and feedback control loop, optimized for high-current, low-noise DC/DC conversion where switching noise must be avoided. Its fixed 3.3 V output eliminates external resistor networks required by adjustable variants.

Protection circuitry includes foldback current limiting (1000–2200 mA trip range) and thermal shutdown triggered at T_j ≥ 150 °C, with recovery after cooldown. Input-to-output differential must exceed V_DR (1.0–1.4 V) for regulation, and minimum load current is 1–5 mA to maintain stability.

Key Specifications

Pinout & Package

IFX27001TFV33ATMA1 uses the PG-TO252-3 (DPAK) surface-mount package with exposed thermal pad (Tab) electrically connected to Pin 2 (Q). The package enables PCB-level heatsinking via soldered copper area under the tab.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar linear voltage regulator applications.

Compared with TLV1117-33CDCYR and LD1117S33TR, IFX27001TFV33ATMA1 offers superior thermal performance (R_thJC = 4 K/W), guaranteed short-circuit foldback, and documented ±2 kV HBM ESD rating - critical for automated manufacturing and high-reliability industrial deployment.

Availability

IFX27001TFV33ATMA1 is available at Aetrix Electronics and suitable for industrial HDTV power rails, network router auxiliary supplies, and manufacturing automation controllers requiring stable component supply with long lifecycle visibility.

Supply support for IFX27001TFV33ATMA1 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 AG 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 linear regulator product line, designed specifically for high-current, high-temperature industrial and consumer electronics applications where reliability under electrical and thermal stress is mandatory.

FAQ

What is the minimum input voltage required for regulation at 1 A load?

The minimum input voltage is V_Q + V_DR, where V_DR = 1.30–1.40 V at 1.0 A load. For 3.3 V output, VI must be ≥ 4.6 V to sustain regulation. Below this, output voltage drops linearly with input; the device remains functional but exits regulation mode.

Can IFX27001TFV33ATMA1 be used without an output capacitor?

No. A minimum 10 µF ceramic or tantalum capacitor with ESR ≤ 10 Ω is mandatory between Q and GND to ensure loop stability and prevent oscillation. Omission causes output voltage overshoot, ringing, and potential damage during load transients.

How does the thermal shutdown behave during continuous overload?

When junction temperature reaches 150 °C, the device shuts down output and enters thermal shutdown. It remains latched off until T_j falls below ~135 °C, then automatically resumes regulation. This cycle repeats if overload persists, limiting average power dissipation and preventing permanent damage.

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

Yes. IFX27001TFV33ATMA1 is manufactured with lead-free terminations and complies fully with RoHS Directive 2011/65/EU. The "ATMA1" suffix denotes tape-and-reel packaging with Pb-free finish, verified per JEDEC J-STD-020 moisture sensitivity level 3.