Texas Instruments TLV71210DBVT

Overview

TLV71210DBVT from Texas Instruments is a 300-mA, sub-bandgap low-dropout linear regulator (LDO) with fixed 1.0-V output, 2% DC accuracy, 35-μA quiescent current, and 68-dB PSRR at 1 kHz-designed for powering ultra-low-voltage processors in battery-operated handheld devices.

For engineers reviewing the TLV71210DBVT datasheet, TLV71210DBVT pinout, TLV71210DBVT application, or TLV71210DBVT equivalent, this page delivers verified electrical specs, SOT23-5 package details, thermal shutdown behavior, stable operation with ≥0.1-μF ceramic output capacitance, and real-world use cases in Li-ion–powered wireless handsets and Bluetooth peripherals.

Technical Context

The TLV71210DBVT uses a PMOS pass transistor to achieve sub-bandgap regulation down to 1.0 V with minimal headroom, enabling operation from as low as 2.0-V input while delivering up to 300 mA. Its precision bandgap reference and error amplifier ensure ±2% output accuracy across –40°C to +125°C.

It integrates active-high enable logic (EN threshold: 0.9 V), undervoltage lockout (UVLO at 1.9 V), thermal shutdown (+165°C trip), and overcurrent protection. The device remains stable with only 0.1-μF effective output capacitance-supporting cost-effective, bias-voltage–derated ceramics without compromising transient response.

Key Specifications

Pinout & Package

SOT23-5 package (DBV): 1.5 mm × 1.5 mm × 1.0 mm body, 0.95-mm pitch, thermally enhanced GND pad, RoHS-compliant NIPDAU finish, MSL Level-1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-IQ, sub-1.2-V LDO applications.

Compared with TLV71210DBVR, TLV71210DBVT offers identical regulation performance but enables rapid evaluation and small-batch integration via tape-and-reel convenience; versus TLV71210DSET, it trades 20°C/W higher thermal resistance for full SOT23-5 compatibility and broader distributor availability.

Availability

TLV71210DBVT is available at Aetrix Electronics and suitable for wireless handsets, Bluetooth® peripherals, and ZigBee® network nodes requiring stable component supply, long-term lifecycle support, and guaranteed traceability.

Supply support for TLV71210DBVT 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 leader specializing in analog and embedded processing technologies, with decades of LDO design expertise and broad automotive, industrial, and consumer qualification.

The TLV712xx series was developed to address ultra-low-voltage power needs in next-generation portable RF systems-specifically targeting sub-1.2-V processor cores, battery-constrained IoT endpoints, and noise-sensitive radio bias rails.

FAQ

What is the minimum input voltage required for TLV71210DBVT to regulate 1.0 V output?

The TLV71210DBVT requires a minimum input voltage of 2.0 V to maintain regulation at 1.0 V output across its full 300-mA load range and –40°C to +125°C junction temperature. Below 2.0 V, undervoltage lockout activates and disables regulation. This 1.0-V dropout headroom enables reliable operation from aging single-cell Li-ion batteries down to 3.0 V nominal.

Does TLV71210DBVT require an external pull-down resistor on the EN pin?

No, TLV71210DBVT does not require an external pull-down resistor on the EN pin. Its enable input has an internal leakage path that pulls EN low when unconnected, ensuring default shutdown. However, for deterministic startup in noisy environments, TI recommends tying EN to IN through a 100-kΩ resistor or driving it actively from a GPIO.

Can TLV71210DBVT operate stably with a 0.1-μF X5R ceramic capacitor on the output?

Yes, TLV71210DBVT is explicitly designed to remain stable with an effective output capacitance of ≥0.1 μF-including derated X5R ceramics. At 1.0 V output and room temperature, a rated 0.1-μF X5R cap typically retains >0.08 μF under bias, satisfying the stability requirement. Avoid high-ESR types: maximum allowed ESR is 200 mΩ.

What protection features are integrated into TLV71210DBVT?

TLV71210DBVT integrates thermal shutdown (trip at +165°C, reset at +145°C), output current limiting (320–860 mA foldback), undervoltage lockout (1.9 V rising threshold), and ESD protection (2 kV HBM). These features operate autonomously without external components, safeguarding both the LDO and downstream circuitry during fault conditions.

Is TLV71210DBVT pin-compatible with other devices in the TLV712xx family?

Yes, all TLV712xx devices in the SOT23-5 (DBV) package-including TLV71209DBVT, TLV71210DBVT, and TLV71211DBVT-share identical pinout, footprint, and thermal pad layout. Only the output voltage differs (0.9 V, 1.0 V, 1.1 V respectively); no PCB redesign is needed when swapping within this variant group.