Texas Instruments TLV70215QDBVRQ1

Overview

TLV70215QDBVRQ1 from Texas Instruments is an automotive-grade, 300-mA, low-quiescent-current LDO linear regulator with fixed 1.5-V output, 2% accuracy over temperature, 35-µA IQ, and 220-mV dropout at 300 mA (VOUT = 2.8 V). It delivers stable power to image sensor rails and microprocessor cores in automotive camera modules under –40°C to +125°C ambient conditions.

For engineers reviewing the TLV70215QDBVRQ1 datasheet, TLV70215QDBVRQ1 pinout, TLV70215QDBVRQ1 application, or TLV70215QDBVRQ1 equivalent, key selection criteria include AEC-Q100 Grade 1 qualification, thermal shutdown/overcurrent protection, 0.1-µF minimum stable output capacitance, and SOT-23-5 package compatibility with space-constrained automotive PCBs.

Technical Context

The TLV70215QDBVRQ1 uses a PMOS pass transistor architecture enabling ultra-low dropout voltage scaling with load current, while maintaining high PSRR (68 dB at 1 kHz) and low output noise (48 µVRMS, 100 Hz–100 kHz). Its precision bandgap reference and error amplifier ensure ±2% DC output accuracy across full temperature range.

Functional modes include normal regulation (VIN > VOUT + VDO), dropout operation (VIN < VOUT + VDO), and current-limit protection triggered at 320–860 mA. Enable logic is active-high (VEN ≥ 0.9 V), with shutdown current as low as 400 nA at VIN = 2 V.

Key Specifications

Pinout & Package

TLV70215QDBVRQ1 is packaged in a 5-pin SOT-23 (DBV) with 2.90 mm × 1.60 mm body size and thermal pad on underside. Pin 4 (NC) must be tied to GND for optimal thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV70215QDBVRQ1, TLV70215QDSERQ1 offers superior thermal management in compact layouts, while TPS7A0515PDBVR trades automotive reliability for lower quiescent current-making TLV70215QDBVRQ1 the sole AEC-Q100-compliant 1.5-V SOT-23 LDO option in its performance class.

Availability

TLV70215QDBVRQ1 is available at Aetrix Electronics and suitable for automotive camera modules, image sensor power supplies, and microprocessor standby rails requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLV70215QDBVRQ1 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, industrial, and power management ICs.

The TLV702-Q1 product line was designed specifically for AEC-Q100 Grade 1 automotive applications demanding low IQ, high PSRR, and robust thermal protection in compact packages like SOT-23 and WSON.

FAQ

What is the maximum input voltage rating for TLV70215QDBVRQ1?

The absolute maximum input voltage for TLV70215QDBVRQ1 is 6.0 V, as specified in the Absolute Maximum Ratings table. Operation above this voltage risks permanent device damage. Recommended operating input voltage is 2.0 V to 5.5 V, ensuring proper regulation and thermal margin across the full –40°C to +125°C temperature range. Exceeding 5.5 V may trigger undervoltage lockout or degrade long-term reliability.

Does TLV70215QDBVRQ1 require an input capacitor for stability?

TLV70215QDBVRQ1 does not require an input capacitor for loop stability, but TI strongly recommends a 0.1–1 µF low-ESR ceramic capacitor between IN and GND. This capacitor improves transient response, suppresses input ripple, and mitigates voltage excursions caused by inductive source impedance. Without it, line transients may cause output overshoot or instability, especially when the regulator is located far from the power source or driven by high-impedance supplies.

How does the enable pin (EN) function on TLV70215QDBVRQ1?

The EN pin on TLV70215QDBVRQ1 is an active-high digital control input. When voltage at EN rises above 0.9 V, the regulator enables and begins regulating the 1.5-V output. When EN falls below 0.4 V, the device enters shutdown mode, reducing ground current to 400 nA (typical at VIN = 2 V). If enable functionality is unused, EN must be tied directly to IN to ensure continuous operation - floating EN is not permitted.

Can TLV70215QDBVRQ1 operate with a 0.1-µF output capacitor?

Yes, TLV70215QDBVRQ1 is explicitly designed to remain stable with an effective output capacitance of ≥0.1 µF, including bias- and temperature-derated values. This enables use of smaller, lower-cost X5R/X7R ceramics in space-constrained automotive PCBs. However, a 0.1-µF *rated* capacitor may fall below 0.1 µF under bias/temperature; actual effective capacitance must be verified. Maximum ESR must remain under 200 mΩ for guaranteed stability.

What protection features are integrated into TLV70215QDBVRQ1?

TLV70215QDBVRQ1 integrates three critical protection functions: thermal shutdown (activates at ~165°C junction temperature, resets at ~145°C), output current limiting (320–860 mA foldback), and undervoltage lockout (UVLO triggers below 1.9 V input). All protections are fully functional across –40°C to +125°C and do not require external components. These features prevent catastrophic failure during fault conditions such as short circuits, overheating, or brownout events in automotive environments.