Infineon Technologies TLE4296GV30HTSA1

Overview

TLE4296GV30HTSA1 from Infineon Technologies is a monolithic low-dropout linear voltage regulator in PG-SCT595-5 package, delivering 3.0 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 4.0 V to 45 V input across –40 °C to +150 °C junction temperature - deployed in automotive microcontroller power rails.

For engineers reviewing the TLE4296GV30HTSA1 datasheet, TLE4296GV30HTSA1 pinout, TLE4296GV30HTSA1 application, or TLE4296GV30HTSA1 equivalent, key selection criteria include its AEC-Q100 qualification, 30 mA load capability with <0.3 V dropout, dual GND pin configuration, 2.2 µF/3–10 Ω ESR output capacitor requirement, and inhibit logic thresholds (V_INH,high ≥ 2.2 V, V_INH,low ≤ 0.4 V).

Technical Context

The TLE4296GV30HTSA1 integrates bandgap reference, saturation control, thermal shutdown, and reverse-polarity protection in a single die. Its inhibit input enables high-impedance disable with sub-5 µA standby current, while internal current limiting caps output at 30 mA under overload.

Designed for automotive environments, it sustains operation up to 45 V input and 150 °C junction temperature, with line regulation of ≤20 mV over VI = (V_Q,nom + 0.5 V) to 36 V and load regulation of ≤20 mV across 1–25 mA load variation at 25 °C.

Key Specifications

Pinout & Package

Package: PG-SCT595-5 - 5-pin thermally enhanced SMD package with exposed thermal pad (pin 5), dual ground pins (2 and 5), and footprint optimized for automotive PCB thermal management.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV73330PDBVR and MAX1725EUT30+T, the TLE4296GV30HTSA1 uniquely combines AEC-Q100 Grade 0, reverse-polarity survival, dual-GND thermal design, and inhibit-controlled ultra-low standby - making it irreplaceable in safety-critical automotive LDO roles where reliability trumps raw current capacity.

Availability

TLE4296GV30HTSA1 is available at Aetrix Electronics and suitable for automotive body control modules, engine control units, infotainment system standby supplies, and ADAS camera biasing requiring stable component supply across extended temperature and voltage ranges.

Supply support for TLE4296GV30HTSA1 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 security solutions, with global R&D and manufacturing infrastructure.

The TLE4296 series belongs to Infineon's automotive linear regulator product line, engineered specifically for robust, qualification-ready power delivery in harsh-temperature, high-reliability vehicle subsystems.

FAQ

What is the minimum input voltage required for regulation at full 30 mA load?

The TLE4296GV30HTSA1 requires a minimum input voltage of 3.25 V to maintain 3.0 V output at 20 mA (typical dropout = 0.25 V). At full 30 mA, dropout rises slightly; datasheet specifies guaranteed regulation down to 4.0 V input across temperature - ensuring functionality during cold-crank battery dips to 6.5 V on 12 V systems.

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 pulled low (≤0.4 V) to enter standby. Floating INH may cause undefined output state or oscillation due to internal input hysteresis thresholds; a 10 kΩ pull-up to VIN is recommended for default-enable configurations.

Is an input capacitor required for stable operation?

While not strictly mandatory per datasheet, a 1 µF X7R ceramic input capacitor placed near pin 3 is strongly recommended to suppress high-frequency noise and limit peak currents during load transients - especially in automotive environments with alternator ripple and load-dump spikes.

Does the device require a heatsink for 30 mA operation at 150 °C ambient?

No external heatsink is needed. With R_thj-pin = 30 K/W and R_thja = 179 K/W (no airflow), power dissipation at 30 mA and 45 V input is ~1.26 W - resulting in ~225 °C junction rise above ambient. However, thermal shutdown activates before damage occurs; derating to ≤15 mA at 150 °C ambient is advised for continuous operation without shutdown.