Infineon Technologies TLE4296GV33HTSA1

Overview

TLE4296GV33HTSA1 from Infineon Technologies is a monolithic low-dropout linear voltage regulator in PG-SCT595-5 package, delivering 3.3 V ±4% output at up to 30 mA with 0.25 V typical dropout at 20 mA. It features inhibit control, reverse-polarity protection, short-circuit and overtemperature shutdown, and operates from 5.5 V to 45 V input across –40 °C to 150 °C junction temperature - designed for automotive microprocessor supply rails.

For engineers reviewing the TLE4296GV33HTSA1 datasheet, TLE4296GV33HTSA1 pinout, TLE4296GV33HTSA1 application, or TLE4296GV33HTSA1 equivalent, key selection criteria include dropout voltage under load, inhibit logic thresholds (V_INH,high ≥ 2.2 V, V_INH,low ≤ 0.4 V), quiescent current in standby (<1 µA), ESR-compatible output capacitor requirements (3–10 Ω), and AEC-Q100 qualification status.

Technical Context

The TLE4296GV33HTSA1 integrates bandgap reference, saturation control, thermal shutdown, and reverse-polarity protection in a single die. Its inhibit input enables high-side enable logic (active-high, 2.2 V min turn-on) with sub-1 µA standby current, while internal current limiting caps output at 30 mA before foldback.

Dropout is maintained below 0.30 V across full temperature range and load (1–30 mA); line regulation holds output variation within ±20 mV over 5.5–36 V input swing at fixed 5 mA load, and PSRR reaches 60 dB at 100 Hz - critical for noise-sensitive MCU core or CAN transceiver biasing.

Key Specifications

Pinout & Package

PG-SCT595-5 is a 5-pin thermally enhanced SMD package with exposed thermal pad (pin 5), footprint compatible with JEDEC MO-252 variant. Pin 2 and pin 5 are internally connected GND terminals for low-inductance grounding and thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV73333PDBVR, TLE4296GV33HTSA1 offers automotive-grade protection and qualification at lower cost and smaller footprint but lower current capability; versus TPS7B6733QPWPRQ1, it trades current headroom and extra features for minimal size and proven thermal ruggedness in constrained spaces.

Availability

TLE4296GV33HTSA1 is available at Aetrix Electronics and suitable for body control modules, engine control units, ADAS camera systems, and electric power steering logic supplies requiring stable component supply under automotive thermal and electrical stress conditions.

Supply support for TLE4296GV33HTSA1 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 manufacturing and automotive qualification infrastructure.

The TLE4296 product line delivers AEC-Q100-qualified linear regulators optimized for harsh-environment automotive subsystems - emphasizing thermal resilience, fault tolerance, and minimal external component count.

FAQ

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

The TLE4296GV33HTSA1 requires a minimum input voltage of 5.5 V to maintain 3.3 V output at 30 mA load, based on its 0.25 V typical dropout voltage. Below this threshold, output collapses linearly; operation is guaranteed only above 5.5 V per the datasheet's operating range table.

Can the INH pin be left floating in the application?

No - the INH pin must be actively driven. Floating INH may result in undefined state due to internal leakage paths; tie to V_IN via 10 kΩ pull-up for default-on operation or to GND for forced-off. The datasheet specifies V_INH,low ≤ 0.4 V and V_INH,high ≥ 2.2 V for reliable switching.

Is an input capacitor required for stable operation?

An input capacitor is not mandatory per datasheet, but a 1 µF ceramic capacitor placed close to pins 3 and 2/5 is strongly recommended to suppress high-frequency transients from the battery rail and improve transient response during load steps.

Does the device support parallel operation for higher current?

No - the TLE4296GV33HTSA1 is not designed for parallel operation. Its output stage lacks current-sharing circuitry, and mismatched dropout voltages would cause uneven current distribution and potential thermal runaway. For >30 mA, select a higher-current AEC-Q100 regulator such as TPS7B6733QPWPRQ1.