Infineon Technologies IFX27001TFV26ATMA1

Overview

IFX27001TFV26ATMA1 from Infineon is a fixed-output 2.6 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 from −40 °C to +125 °C junction temperature. It delivers stable low-noise power to microprocessor core supplies and industrial control logic under wide input range (up to 40 V).

For engineers reviewing the IFX27001TFV26ATMA1 datasheet, IFX27001TFV26ATMA1 pinout, IFX27001TFV26ATMA1 application, or IFX27001TFV26ATMA1 equivalent, key selection criteria include dropout voltage at 1 A load, thermal resistance (R_thJC = 4 K/W), PSRR of 65 dB at 120 Hz, RMS output noise of 30 ppm, and guaranteed 2.6 V ±50 mV output accuracy across temperature and line/load variation.

Technical Context

The IFX27001TFV26ATMA1 implements an NPN-based linear regulation architecture with internal reference and error amplifier, delivering fixed 2.6 V output without external feedback components. Its dropout behavior is defined by V_DR = 1.00–1.40 V across 100 mA–1.0 A load, enabling use with input voltages as low as 3.6 V while maintaining regulation.

Protection circuitry includes thermal shutdown triggered at T_j ≥ 150 °C and current limiting that sustains 1000–2200 mA at moderate VI−VQ differentials but reduces to 50–200 mA at VI = 40 V, ensuring safe fault handling without latch-up. ESD robustness meets AEC-Q100 HBM (±2 kV) and CDM (±500 V) requirements.

Key Specifications

Pinout & Package

IFX27001TFV26ATMA1 uses the PG-TO252-3 (DPAK) surface-mount package with exposed thermal pad (Tab) electrically connected to Pin 2 (Q). The package supports PCB-level heatsinking and requires ≥10 µF output capacitor (ESR ≤ 10 Ω) between Q and GND.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV1117-26CDCYR and NCP1117DT26T5G, IFX27001TFV26ATMA1 offers superior thermal performance (R_thJC = 4 K/W vs. >50 K/W), built-in overtemperature/short-circuit protection, and tighter output tolerance - making it optimal for high-reliability industrial and automotive applications demanding full fault coverage in DPAK form factor.

Availability

IFX27001TFV26ATMA1 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, and network router CPU subsystems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for IFX27001TFV26ATMA1 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 electronics, and industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949 and AEC-Q200 standards.

The IFX27001 series belongs to Infineon's industrial-grade linear regulator product line, designed specifically for high-current, high-temperature, and fault-resilient power delivery in factory automation, transportation, and consumer electronics systems.

FAQ

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

The minimum input voltage is calculated as V_Q + V_DR(max) = 2.6 V + 1.40 V = 4.0 V. At 1.0 A load and T_j = 125 °C, regulation is maintained down to 4.0 V input, provided the output capacitor (≥10 µF, ESR ≤ 10 Ω) is correctly placed and PCB layout minimizes trace inductance.

Does IFX27001TFV26ATMA1 require an external capacitor on the output pin?

Yes - a minimum 10 µF ceramic or tantalum capacitor with ESR ≤ 10 Ω must be placed directly between Pin 2 (Q) and Pin 1 (GND). This capacitor stabilizes regulation, reduces output impedance at high frequencies, and is mandatory for PSRR and noise performance as specified in the datasheet.

Can IFX27001TFV26ATMA1 be used in automotive under-hood applications?

While rated for T_j = −40 °C to +125 °C and RoHS-compliant, IFX27001TFV26ATMA1 is not AEC-Q100 qualified. For automotive under-hood use, Infineon recommends the pin-compatible TLE7272 series, which adds enhanced ESD, transient immunity, and qualification per AEC-Q100 Grade 0 (−40 °C to +150 °C).

How does the thermal pad (Tab) connect electrically and what is its function?

The exposed Tab is internally connected to Pin 2 (Q, output) and serves as the primary thermal conduction path from die to PCB. It must be soldered to a large copper pour (≥300 mm² recommended) with ≥4 thermal vias to inner ground planes. Electrical isolation from other nets is required since the Tab carries full output current and voltage.