Infineon Technologies TLS102B0MBHTSA1

Overview

TLS102B0MBHTSA1 from Infineon Technologies is a monolithic high-precision voltage tracking linear regulator in PG-SCT595-5 package, designed for automotive off-board sensor supply under harsh conditions. It delivers 20 mA output current with ±0.5% tracking accuracy, 120 mV typical dropout at 20 mA, and operates across −16 V to 45 V input range and −40°C to 150°C junction temperature.

For engineers reviewing the TLS102B0MBHTSA1 datasheet, TLS102B0MBHTSA1 pinout, TLS102B0MBHTSA1 application, or TLS102B0MBHTSA1 equivalent, key selection criteria include its adjustable 2.0–20 V tracking range, reverse polarity protection, short-circuit protection (to GND and battery), ultra-low 3 µA standby current, and AEC-Q100 qualification for automotive powertrain systems.

Technical Context

The TLS102B0MBHTSA1 implements a PNP-based tracking architecture where the output voltage V_OUT precisely follows the reference voltage applied to the EN/ADJ pin. Its control loop stability depends on external output capacitance (1 µF min, ESR ≤ 3 Ω), load current, and thermal environment - not internal compensation.

It integrates three independent protection mechanisms: reverse polarity input tolerance (−16 V), output short-circuit protection to both GND and battery rail, and thermal shutdown at T_j > 150°C with automatic restart. The EN/ADJ pin serves dual function - enabling the device when pulled high (>2.0 V) and setting output voltage via direct connection or resistive divider.

Key Specifications

Pinout & Package

Package: PG-SCT595-5 - thermally enhanced 5-pin SMD package with dual GND pins (pins 2 and 5 internally connected) for improved heatsinking on PCB copper areas.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-precision automotive voltage tracking applications.

Compared with TLV71728PDQNR and TPS7B8133QPWPRQ1, TLS102B0MBHTSA1 uniquely combines adjustable 2.0–20 V tracking, ±0.5% accuracy, −16 V reverse polarity tolerance, and dual-GND thermal design - making it the only option qualified for precision off-board sensor bias in powertrain environments.

Availability

TLS102B0MBHTSA1 is available at Aetrix Electronics and suitable for automotive powertrain sensor supply, protected off-board ECU rails, and precision voltage replication requiring stable component supply across extended temperature and voltage stress conditions.

Supply support for TLS102B0MBHTSA1 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, and industrial control ICs, with leadership in AEC-Q100-qualified analog and mixed-signal products.

The OPTIREG™ linear regulator product line targets automotive subsystems requiring high reliability, fault tolerance, and precision under extreme environmental stress - especially sensor interfaces, ECU auxiliary rails, and safety-critical power domains.

FAQ

What is the minimum reference voltage required at the EN/ADJ pin to achieve regulation?

The EN/ADJ pin requires a minimum of 2.0 V to enable regulation and set the output voltage. Below this threshold, the device remains disabled. This 2.0 V minimum enables compatibility with common microcontroller GPIOs and precision references while ensuring reliable startup under low-battery conditions.

Can TLS102B0MBHTSA1 operate with a 1.8 V reference input?

No. The datasheet specifies a functional EN/ADJ voltage range of 2.0 V to 20 V. A 1.8 V input falls below the minimum enable threshold and will not activate regulation. For sub-2.0 V tracking, external level-shifting or a different regulator architecture is required.

How does the dual-GND configuration (pins 2 and 5) improve thermal performance?

Pins 2 and 5 are internally connected and designed for simultaneous attachment to a shared PCB heatsink area. This doubles the copper conduction path, reducing effective R_thJA by up to 35% compared to single-GND layouts - critical for sustaining 20 mA output at 150°C junction temperature without derating.

Is external compensation required for stability with ceramic output capacitors?

No. The TLS102B0MBHTSA1 is internally compensated for stability with 1 µF ceramic capacitors having ESR ≤ 3 Ω at 10 kHz. No external compensation network is needed, simplifying layout and eliminating tuning effort - confirmed in Section 4.1 and Table 3 of the datasheet.