INFINEON TLE42644

Mfr. Part

TLE42644

Manufacturer

Infineon Technologies (includes Cypress Semiconductor portfolio)

Y-IC is a quality distributor for Infineon. We deliver genuine parts, fast service, and strong technical support so you get the best products and the best experience.

Detailed Description

Automotive-grade low-dropout (LDO) linear regulator family, fixed 5V output, designed to power microcontrollers and logic in 12V systems.

Integrated supervisory functions: reset output and watchdog (family features vary by exact suffix).

Built for harsh automotive environments: wide input range, robust protection, high reliability.

Suitable for Integrated Circuits (ICs) category, Specialized ICs class.

Key Features

Fixed 5V regulated output for MCU and digital loads.

Low dropout architecture for stable operation during battery dips.

Reset signal generation for reliable MCU startup and brownout handling.

Watchdog capability for system monitoring (on suitable variants).

Enable/Shutdown control (on suitable variants).

Protection features: overcurrent/short-circuit, thermal shutdown, safe-area operation.

Automotive-grade quality, AEC-Q100 style robustness and extended temperature (variant dependent).

Good line/load regulation and noise rejection for sensitive electronics.

Stable with proper output capacitors and broad ESR ranges (see datasheet for exact guidance).

Key Advantages

Combines power regulation and supervision to reduce component count.

Designed for 12V automotive batteries: handles transients and noisy supply lines.

Improves system reliability with built-in reset/watchdog.

Simplifies design and speeds qualification in automotive and industrial projects.

Backed by Infineon’s automotive expertise and Y-IC’s reliable supply chain.

Packaging

Type: Molded plastic, surface-mount or through-hole depending on variant; typical family options include small-outline packages (e.g., DSO/TSSOP) and power packages (e.g., TO-252/TO-220 style).

Material: Epoxy-molded thermoplastic with copper leadframe.

Size: Varies by case option; confirm exact mechanical dimensions from the datasheet drawing for your chosen suffix.

Pin configuration: Multi-pin layout supporting IN, OUT, GND, RESET, WD, EN, and sense/feedback pins (pin count and mapping depend on the exact package and suffix).

Thermal characteristics: Thermal shutdown, derating dependent on board copper and package; junction-to-ambient/board thermal resistance varies by package (see datasheet curves).

Electrical properties: Fixed 5V output, low dropout behavior, tight output accuracy, wide input voltage range suitable for automotive 12V systems, low quiescent current, good PSRR, fast transient response (exact specifications depend on variant; consult datasheet).

Package / Case reference: 585 (vendor case code as provided; please verify the exact suffix to match the mechanical drawing and reel/tube option).

Lifecycle

Status: Generally active within Infineon’s automotive regulator portfolio. Not near discontinuation to our knowledge.

Equivalent/Alternative models (verify pinout, features, and ratings before substitution):

- Infineon TLE4264 family (5V LDO with reset/watchdog variants; lower current options)

- Infineon TLE4274 family (higher-current 5V LDO options)

- Infineon TLE4284 family (5V regulator with supervisory features)

- Infineon TLE4471/TLE4472 (dual/supervisor-equipped regulators for automotive use)

- Infineon TLE4296/TLE42994 families (automotive LDOs with tracker/supervisor features)

If you need exact drop-in or feature-matched alternatives (same package/pinout), please contact our sales team via the Y-IC website so we can recommend the closest match.

Key Application Areas

Automotive ECUs (engine, transmission, body control, chassis, safety systems)

Instrument clusters, infotainment, telematics, and gateways

Sensor modules and ADAS controllers needing a clean 5V rail

Industrial embedded controllers and PLC modules

Building automation, smart appliances, and general 12V-powered electronics

Any MCU-based system requiring a robust 5V LDO with reset/watchdog in noisy environments

Datasheet

The most authoritative datasheet for TLE42644 is available on our Y-IC product page.

For exact electrical limits, pin maps, package drawings, and application notes, download the datasheet now from this page. It’s the fastest way to design with confidence.

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In stock quantity: 10,300 units (Date Code 21+). Move fast while supplies last.

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