Texas Instruments TLV70245QDSERQ1

Overview

TLV70245QDSERQ1 from Texas Instruments is an automotive-grade, fixed-output 4.5 V low-dropout (LDO) linear regulator in a 6-pin WSON package. It delivers up to 300 mA output current with 2% accuracy over –40°C to +125°C, 35 µA quiescent current, and 260 mV dropout at 300 mA - optimized for image sensor power and microprocessor rails in automotive camera modules.

For engineers reviewing the TLV70245QDSERQ1 datasheet, TLV70245QDSERQ1 pinout, TLV70245QDSERQ1 application, or TLV70245QDSERQ1 equivalent, key selection criteria include AEC-Q100 Grade 1 qualification, thermal shutdown/overcurrent protection, stability with ≥0.1 µF ceramic output capacitance, and enable-controlled shutdown with 1 µA quiescent current in disabled state.

Technical Context

The TLV70245QDSERQ1 uses a PMOS pass transistor architecture enabling ultra-low dropout voltage that scales with load current - 37 mV at 50 mA (2.8 V output), 220 mV at 300 mA (2.8 V), and 260 mV at 300 mA (4.5 V). Its precision bandgap reference and error amplifier deliver 2% DC output accuracy across temperature and line/load conditions.

It integrates undervoltage lockout (UVLO) triggering at 1.9 V, active-high enable logic (EN > 0.9 V enables), and thermal shutdown at 165°C with hysteresis (reset at 145°C). PSRR reaches 68 dB at 1 kHz, and output noise is 48 µV_RMS (100 Hz–100 kHz), supporting noise-sensitive analog and RF subsystems.

Key Specifications

Pinout & Package

TLV70245QDSERQ1 is housed in a 1.5 mm × 1.5 mm, 6-pin WSON (DSE) package with wettable flanks, optimized for automated optical inspection (AOI) and thermal performance on compact PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV70245QDSERQ1, TLV70045QDBVRQ1 offers lower quiescent current but inferior thermal performance in compact layouts, while TLS850F4V5T1G adds supervision features at the cost of complexity and footprint - TLV70245QDSERQ1 balances minimal size, low noise, and automotive qualification without added circuitry.

Availability

TLV70245QDSERQ1 is available at Aetrix Electronics and suitable for automotive camera modules, image sensor power, and microprocessor rails requiring stable component supply, AEC-Q100-compliant sourcing, and long-term production continuity.

Supply support for TLV70245QDSERQ1 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, embedded processing, and automotive electronics, with leadership in power management innovation.

The TLV702-Q1 product line was designed specifically for automotive power-sensitive applications - including ADAS cameras and infotainment systems - where low IQ, high PSRR, and AEC-Q100 reliability are mandatory.

FAQ

What is the maximum input voltage rating for TLV70245QDSERQ1?

The absolute maximum input voltage for TLV70245QDSERQ1 is 6.0 V, as specified in the Absolute Maximum Ratings table. Operation above this voltage risks permanent device damage. For reliable continuous operation, TI specifies a recommended maximum input of 5.5 V across the full temperature range.

Does TLV70245QDSERQ1 require an input capacitor?

While TLV70245QDSERQ1 does not require an input capacitor for stability, TI strongly recommends a 0.1–1 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 or fast load changes - especially critical in automotive power distribution networks.

Can TLV70245QDSERQ1 be used with tantalum or aluminum electrolytic output capacitors?

TLV70245QDSERQ1 is optimized for ceramic capacitors and is only guaranteed stable with ≥0.1 µF effective capacitance and ESR < 200 mΩ. Tantalum or aluminum electrolytic capacitors typically exhibit higher ESR and significant capacitance loss under bias/temperature - risking instability. Ceramic X5R/X7R types are the validated solution per TI's design guidelines.

What is the thermal shutdown behavior of TLV70245QDSERQ1?

TLV70245QDSERQ1 activates thermal shutdown at approximately 165°C junction temperature and resets at ~145°C. During sustained overload, it cycles between regulation and shutdown - a protective mechanism. Continuous cycling indicates inadequate heatsinking or excessive power dissipation; TI recommends limiting steady-state junction temperature to ≤125°C for reliable operation.

Is TLV70245QDSERQ1 pin-compatible with other TLV702-Q1 variants?

Yes - all TLV702-Q1 devices in the 6-pin WSON (DSE) package share identical pinout: IN (1), GND (2), OUT (3), NC (4), NC (5), EN (6). The TLV70245QDSERQ1 maintains full pin compatibility with other DSE-packaged variants (e.g., TLV70233QDSERQ1), enabling voltage-scaling flexibility within the same PCB footprint.