Infineon Technologies TLS202A1MBVHTMA1

Overview

TLS202A1MBVHTMA1 from Infineon Technologies is an AEC-Q100 qualified adjustable linear voltage post regulator for automotive electronics, delivering 1.2 V to 5.25 V output at up to 150 mA with ±3 % accuracy, 290 mV typical dropout, and 65 dB PSRR at 10 kHz - used as a low-quiescent, high-PSRR secondary regulator downstream of DC/DC converters in body control modules.

For engineers reviewing the TLS202A1MBVHTMA1 datasheet, TLS202A1MBVHTMA1 pinout, TLS202A1MBVHTMA1 application, or TLS202A1MBVHTMA1 equivalent, key selection criteria include its -40 °C to +150 °C junction temperature range, dual-GND thermal design, ADJ-pin-based voltage programming, and compliance with automotive load-dump and reverse-battery immunity requirements per functional specification.

Technical Context

The TLS202A1 implements a bandgap-referenced error amplifier driving a pass transistor, with internal current limiting and thermal shutdown circuitry that activates at 151–190 °C. Its regulation loop relies on external resistor divider feedback at the ADJ pin and requires a minimum 1 µF ceramic output capacitor with ≤10 Ω ESR at 10 kHz for stability across -40 °C to +150 °C.

It operates only as a post-regulator - not battery-direct - with input range 2.7 V to 18 V, and features 50 µA typical quiescent current, enabling always-on subsystems. Protection functions (short-circuit, overtemperature) are fault-recovery mechanisms, not rated for continuous operation.

Key Specifications

Pinout & Package

Package: PG-SCT595 - 5-pin surface-mount package with dual GND pins (2 & 5) thermally connected internally and requiring soldering to PCB heatsink area for thermal management.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar adjustable linear post-regulator applications.

Compared with TLV70733PDQNR and TPS7B6733QPWPRQ1, the TLS202A1MBVHTMA1 offers optimal balance of adjustability, ultra-low IQ, and automotive thermal robustness - but requires external pre-regulation and lacks integrated control logic, making it ideal for tightly controlled, space-constrained post-regulation nodes.

Availability

TLS202A1MBVHTMA1 is available at Aetrix Electronics and suitable for body control modules, instrument clusters, transmission control units, and rear occupancy detection systems requiring stable component supply under AEC-Q100-compliant automotive conditions.

Supply support for TLS202A1MBVHTMA1 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 supporting automotive-grade reliability.

The TLS202A1 belongs to Infineon's automotive linear regulator product line, engineered specifically for post-regulation in harsh-environment ECUs where low quiescent current, high PSRR, and extended temperature operation are mandatory.

FAQ

What is the minimum output capacitance required for stable operation?

The TLS202A1 requires a minimum 1 µF ceramic output capacitor with ≤10 Ω equivalent series resistance (ESR) at 10 kHz to maintain loop stability across its full -40 °C to +150 °C operating range. This value accounts for worst-case ±30 % capacitance tolerance and ensures phase margin remains sufficient under all load and temperature conditions specified in the functional range table.

Can TLS202A1MBVHTMA1 be connected directly to a 12 V automotive battery?

No - the TLS202A1 is explicitly designed as a post-regulator and must be supplied from a pre-regulated source (e.g., DC/DC converter), not directly from the battery. Its absolute maximum input voltage is 20 V, but functional operation is limited to 2.7–18 V, and direct battery connection exposes it to transients (load dump, jump start) beyond its protection scope, risking premature failure.

How does the ADJ pin function in setting output voltage?

Output voltage is set by connecting the ADJ pin to a resistor divider between Q and GND. The internal 1.2 V reference is compared to the divided voltage at ADJ; the error amplifier adjusts the pass transistor to maintain V_ADJ = 1.2 V. Thus, V_Q = 1.2 V × (1 + R1/R2). Direct connection of ADJ to Q yields 1.2 V output, requiring <1 MΩ minimum load for stability.

What thermal considerations apply to the dual-GND pins (2 and 5)?

Pins 2 and 5 are internally shorted and serve as primary thermal conduction paths. Both must be soldered to a dedicated PCB heatsink area (≥300 mm² recommended); thermal resistance drops from 217 K/W (footprint-only) to 103 K/W with 600 mm² copper area. Failure to connect both pins degrades thermal performance and risks exceeding 150 °C junction temperature under 150 mA load.