Texas Instruments TLV70236QDSERQ1

Overview

TLV70236QDSERQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified 300-mA low-dropout linear regulator with fixed 3.6 V output, 2% accuracy over –40°C to +125°C, 35 µA quiescent current, and 220 mV dropout at 300 mA - used in image sensor power rails and microprocessor core supplies for ADAS camera modules.

For engineers reviewing the TLV70236QDSERQ1 datasheet, TLV70236QDSERQ1 pinout, TLV70236QDSERQ1 application, or TLV70236QDSERQ1 equivalent, key selection criteria include automotive-grade thermal shutdown (165°C), ultra-low IQ for always-on domains, PSRR of 68 dB at 1 kHz, and stability with ≥0.1 µF ceramic output capacitance in space-constrained WSON packaging.

Technical Context

The TLV70236QDSERQ1 employs a PMOS pass transistor architecture enabling low dropout voltage that scales linearly with load current - 37 mV at 50 mA and 220 mV at 300 mA for VOUT = 2.8 V (scaling applies proportionally to 3.6 V). Its precision bandgap reference and error amplifier deliver ±2% DC output accuracy across temperature and line/load conditions.

Functional modes include normal regulation, dropout operation (where VOUT = VIN – VDO), current limiting (320–860 mA), and thermal shutdown (165°C trip, 145°C reset). Enable logic is active-high with 0.9 V turn-on threshold and 0.4 V shutdown threshold, supporting controlled power sequencing in automotive subsystems.

Key Specifications

Pinout & Package

TLV70236QDSERQ1 is packaged in a 1.5 mm × 1.5 mm, 6-pin WSON (DSE) package with wettable flanks for automated optical inspection. Thermal performance is optimized via exposed thermal pad connected to PCB ground plane.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LDO regulator applications.

Compared with TPS78036QDSERQ1 and TLV71736PDPWRQ1, TLV70236QDSERQ1 delivers optimal balance of 300 mA drive strength, 220 mV dropout, and 35 µA IQ - making it the preferred choice for automotive vision ECUs where input voltage margin, load current, and standby power are simultaneously constrained.

Availability

TLV70236QDSERQ1 is available at Aetrix Electronics and suitable for automotive camera modules, image sensor power supplies, and microprocessor I/O rails requiring stable component supply with AEC-Q100 compliance and long-term production continuity.

Supply support for TLV70236QDSERQ1 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

Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in automotive power management and signal chain solutions.

The TLV702-Q1 product line was designed specifically for automotive power rails demanding low IQ, high PSRR, and AEC-Q100 qualification - targeting camera modules, radar sensors, and infotainment domain controllers.

FAQ

What is the maximum input voltage rating for TLV70236QDSERQ1?

The absolute maximum input voltage for TLV70236QDSERQ1 is 6.0 V, as specified in the Absolute Maximum Ratings table. Operation above this voltage risks permanent damage. The recommended operating range is 2 V to 5.5 V, ensuring reliable regulation and thermal performance across automotive battery transients including load dump and cold-crank conditions.

Does TLV70236QDSERQ1 require an input capacitor?

While not strictly required for stability, TLV70236QDSERQ1 benefits from a 0.1 µF to 1 µF low-ESR ceramic capacitor between IN and GND. This improves transient response, reduces input ripple coupling, and mitigates voltage excursions caused by source impedance - especially important when the device is located >2 cm from the power source or driven by inductive supplies.

How does the enable pin (EN) function on TLV70236QDSERQ1?

The EN pin on TLV70236QDSERQ1 is active-high with a 0.9 V turn-on threshold and 0.4 V shutdown threshold. When pulled above 0.9 V, the regulator delivers 3.6 V to the load; when held below 0.4 V, ground current drops to 1 µA nominal. If shutdown is unused, EN may be tied directly to IN for always-on operation - a common practice in camera ECU designs.

Can TLV70236QDSERQ1 operate with a 0.1 µF output capacitor?

Yes - TLV70236QDSERQ1 is explicitly characterized and guaranteed stable with an effective output capacitance of ≥0.1 µF, provided the capacitor's bias and temperature derated value remains above this threshold. This enables use of compact 0402/0603 X5R/X7R MLCCs, reducing PCB area and cost versus traditional 1 µF solutions.

What thermal protection features does TLV70236QDSERQ1 include?

TLV70236QDSERQ1 integrates thermal shutdown with a 165°C trip point and 145°C hysteresis reset. When junction temperature exceeds 165°C, the output disables until cooling restores safe operation. This protects against sustained overload, poor PCB thermal design, or ambient overheating - critical for under-dash and head-unit deployments where airflow is limited.