Infineon Technologies TLE4296GV50HTSA1

Overview

TLE4296GV50HTSA1 from Infineon Technologies is a monolithic low-dropout linear voltage regulator in PG-SCT595-5 package, delivering 5.0 V ±4% output at up to 30 mA with 0.25 V typical dropout at 20 mA. It features inhibit-controlled standby mode (<1 µA quiescent current), reverse-polarity protection, short-circuit and overtemperature shutdown, and operates from 6 V to 45 V input across –40 °C to 150 °C junction temperature - deployed in automotive microcontroller power rails.

For engineers reviewing the TLE4296GV50HTSA1 datasheet, TLE4296GV50HTSA1 pinout, TLE4296GV50HTSA1 application, or TLE4296GV50HTSA1 equivalent, key selection criteria include guaranteed 5.0 V regulation under wide-input/low-drop conditions, AEC-Q100 qualification, integrated thermal and short-circuit protection, and precise inhibit logic thresholds (V_INH,high ≥ 2.2 V, V_INH,low ≤ 0.4 V).

Technical Context

The TLE4296GV50HTSA1 implements a bandgap-referenced control loop with saturation-based pass transistor drive and dedicated thermal shutdown circuitry that disables output when T_j exceeds 150 °C. Its inhibit input directly gates the internal bias network, enabling fast transition between active (≤4.5 mA I_q) and ultra-low-power standby (≤1 µA) states.

Designed for automotive environments, it sustains operation with input transients up to 45 V, withstands reverse battery connection down to –42 V, and maintains output stability with 2.2 µF output capacitor (3–10 Ω ESR). Load and line regulation are specified at ≤20 mV across full temperature and load range.

Key Specifications

Pinout & Package

PG-SCT595-5 is a 5-pin thermally enhanced SMD package with exposed thermal pad (pin 5), optimized for high ambient temperature PCB layouts in engine bay applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-drop automotive LDO regulator applications.

Compared with TLV73350PDBVR and NCP1117ST50T3G, the TLE4296GV50HTSA1 uniquely combines AEC-Q100 Grade 0 qualification, 5 V ±4% accuracy over full temperature, reverse-polarity survival, and sub-µA inhibit-controlled standby - making it irreplaceable for compact, safety-aware automotive subsystems.

Availability

TLE4296GV50HTSA1 is available at Aetrix Electronics and suitable for automotive ECU power management, body control modules, and ADAS camera biasing requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.

Supply support for TLE4296GV50HTSA1 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 security solutions, with global manufacturing and automotive qualification infrastructure.

The TLE4296 series belongs to Infineon's automotive-grade linear regulator product line, engineered specifically for robust, low-power, high-temperature power delivery in engine control, chassis, and infotainment systems.

FAQ

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

The TLE4296GV50HTSA1 requires a minimum input voltage of 6.0 V to maintain 5.0 V ±4% regulation at 30 mA load, based on its 0.25 V typical dropout voltage. Below 6.0 V, output drops linearly and regulation is lost - confirmed by Table 3 operating range and Figure 8 VI vs. VQ curves in the datasheet.

Can the INH pin be left floating in the circuit?

No. The INH pin must be actively driven: pulled high (>2.2 V) to enable regulation or low (<0.4 V) to enter standby. Floating INH causes undefined behavior due to internal bias leakage; datasheet Figure 1 and Table 4 specify strict logic thresholds and recommend pull-up/pull-down resistors for robust operation.

Is an external output capacitor mandatory, and what are its requirements?

Yes. A minimum 2.2 µF ceramic capacitor with ESR between 3 Ω and 10 Ω at 100 kHz is mandatory on the OUT pin (Pin 4) for stability and transient response, as stated in Table 1 and Figure 1 notes. Omitting it risks oscillation or excessive output ripple, especially under dynamic load changes.

Does this device support parallel operation for higher current capability?

No. The TLE4296GV50HTSA1 is not designed for parallel operation. Its internal current limiting and thermal shutdown are per-unit functions, and mismatched dropout voltages would cause uneven current sharing. Datasheet Section "Functional Description" and Absolute Maximum Ratings confirm single-device operation only.