Infineon Technologies IFX20002MBV50HTSA1

Overview

IFX20002MBV50HTSA1 from Infineon Technologies is a monolithic low-dropout linear voltage regulator in PG-SCT595-5 package, delivering 5.0 V ±4% at up to 30 mA output current with dropout voltage ≤300 mV across -40°C to +125°C. It features inhibit control, reverse polarity protection, short-circuit and overtemperature shutdown, and operates from 5.5 V to 45 V input. Used as standby supply for microcontrollers in industrial network routers.

For engineers reviewing the IFX20002MBV50HTSA1 datasheet, IFX20002MBV50HTSA1 pinout, IFX20002MBV50HTSA1 application, or IFX20002MBV50HTSA1 equivalent, key selection criteria include its 5.0 V fixed output, 30 mA load capability, thermal shutdown behavior, inhibit logic thresholds (VINH,low = 0.4 V, VINH,high = 2.2 V), and ceramic capacitor compatibility (≥3.3 µF, ESR ≤2 Ω).

Technical Context

The IFX20002MBV50HTSA1 implements a bandgap-referenced control loop with saturation control and integrated thermal protection that disables regulation when junction temperature exceeds safe limits. Its inhibit input enables system-level power sequencing by disabling output and reducing quiescent current to ≤5 µA.

Designed for harsh industrial environments, it supports wide-input operation (5.5–45 V), maintains output accuracy under load (±4% over 1–30 mA), and includes reverse-polarity protection to survive incorrect battery or supply connections without damage.

Key Specifications

Pinout & Package

Package: PG-SCT595-5 - thermally enhanced 5-pin SMD package with exposed thermal pad, footprint optimized for high-power density and PCB heat dissipation (R_thJA = 81 K/W on 2s2p board).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-dropout voltage regulator applications.

Compared with TLE42754G and MCP1703T-5002E/MB, IFX20002MBV50HTSA1 uniquely combines 45 V input tolerance, reverse polarity protection, inhibit control, and industrial temperature rating in a thermally optimized 5-pin package-making it optimal for ruggedized 5.0 V standby supplies where fault resilience and board space are critical.

Availability

IFX20002MBV50HTSA1 is available at Aetrix Electronics and suitable for industrial network routers, smart appliance control boards, and manufacturing PLC I/O modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for IFX20002MBV50HTSA1 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 9001.

The IFX20002 belongs to Infineon's industrial voltage regulator product line, designed specifically for reliable, fault-tolerant DC-DC conversion in harsh environments-emphasizing protection features, thermal robustness, and wide-input operation over automotive-grade qualification.

FAQ

What is the minimum input voltage required for regulation at 5.0 V output?

The IFX20002MBV50HTSA1 requires a minimum input voltage of 5.5 V to maintain regulation at 5.0 V output across its full load and temperature range. This 0.5 V headroom accounts for worst-case dropout (300 mV) plus margin for line and load regulation error, ensuring stable operation even at high junction temperature and maximum load.

Can this regulator be used with a 10 µF ceramic output capacitor?

Yes-IFX20002MBV50HTSA1 is stable with ceramic capacitors ≥3.3 µF and ESR ≤2 Ω at 10 kHz. A 10 µF X7R ceramic meets both requirements and improves transient response over the minimum value, provided layout minimizes trace inductance and the capacitor is placed close to pins 4 (Q) and 2/5 (GND).

Does the inhibit function support open-drain or push-pull drive?

The INH pin accepts standard CMOS logic levels: it draws ≤12 µA at 5 V (high state) and ≤2 µA at 0 V (low state), making it compatible with both push-pull GPIOs and open-drain outputs pulled up to ≥2.2 V. No external pull-up is required unless driving from an open-drain source without internal biasing.

Is thermal derating required when mounting on a 2-layer PCB without thermal vias?

Yes-on a standard 2s2p FR4 board without thermal vias, R_thJA is 217 K/W. At 30 mA output and 45 V input, power dissipation reaches ~1.2 W, raising junction temperature by ~260°C above ambient-exceeding safe limits. Thermal vias under the exposed pad and copper pour are mandatory to achieve the rated 125°C operation.