Texas Instruments TLV70215PDBVR

Overview

TLV70215PDBVR from Texas Instruments is a 1.5-V fixed-output, 300-mA low-dropout (LDO) linear regulator in SOT-23-5 package, featuring 2% output accuracy, 35 μA quiescent current, 260 mV dropout at 300 mA, 68 dB PSRR at 1 kHz, and active pulldown for fast output discharge - designed for Li-ion battery-powered handheld devices requiring stable low-noise supply.

For engineers reviewing the TLV70215PDBVR datasheet, TLV70215PDBVR pinout, TLV70215PDBVR application, or TLV70215PDBVR equivalent, key selection considerations include dropout performance under 300 mA load, shutdown current ≤2 μA, thermal shutdown at 165°C, stability with ≥0.1 μF ceramic output capacitance, and enable logic thresholds (VEN(H) = 0.9 V, VEN(L) = 0.4 V).

Technical Context

The TLV70215PDBVR uses a PMOS pass transistor to achieve low dropout and maintains regulation down to (VIN – VOUT) ≥ 260 mV at full 300 mA load. Its precision bandgap reference and error amplifier deliver ±2% DC accuracy across –40°C to +125°C junction temperature.

It integrates undervoltage lockout (UVLO = 1.9 V), thermal shutdown (trip = 165°C, reset = 145°C), overcurrent protection (ICL = 320–860 mA), and an active 120-Ω pulldown circuit on OUT during shutdown - distinguishing it from non-P variants and enabling rapid discharge in power sequencing applications.

Key Specifications

Pinout & Package

SOT-23-5 (DBV) package: 2.90 mm × 1.60 mm body, surface-mount, lead-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV70215PDBVR, TLV70215DBVR trades pulldown capability for lower shutdown current, while MCP1700T-1502E/TT sacrifices enable control, current capacity, and discharge functionality for ultra-low IQ and simplified footprint - making TLV70215PDBVR the optimal choice for sequenced, moderate-current, battery-critical designs.

Availability

TLV70215PDBVR is available at Aetrix Electronics and suitable for wireless handsets, Bluetooth devices, and Li-ion battery-operated handheld products requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for TLV70215PDBVR 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 decades of leadership in power management ICs.

The TLV702 series was engineered specifically for ultra-low-power, battery-constrained applications - delivering high accuracy, low noise, and robust protection in miniature packages for portable RF and sensor systems.

FAQ

What is the minimum input voltage required for TLV70215PDBVR to regulate 1.5 V at 300 mA?

The TLV70215PDBVR requires VIN ≥ VOUT + VDO = 1.5 V + 0.26 V = 1.76 V to maintain regulation at 300 mA. Below this, it enters dropout mode where output tracks input minus dropout voltage. The absolute minimum input is 2.0 V per recommended operating conditions, ensuring reliable startup and UVLO clearance.

Does TLV70215PDBVR require an input capacitor, and what value is recommended?

While not strictly required for stability, TLV70215PDBVR benefits from 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 - especially critical when the device is remote from the power source or driving fast-switching loads.

How does the active pulldown feature of TLV70215PDBVR function during shutdown?

When EN is pulled below 0.4 V, TLV70215PDBVR disables regulation and engages an internal 120-Ω resistor between OUT and GND. This discharges the output capacitor rapidly - reducing VOUT to <100 mV within tens of microseconds - enabling precise power sequencing and preventing backfeeding into downstream circuitry.

Can TLV70215PDBVR operate with a 0.1 μF output capacitor, and what type is recommended?

Yes, TLV70215PDBVR is stable with ≥0.1 μF effective output capacitance. X5R or X7R ceramic capacitors rated ≥1 μF are preferred to ensure ≥0.1 μF effective value under bias and temperature derating. Avoid Z5U or Y5V dielectrics due to excessive capacitance loss at voltage/temperature extremes.

What thermal protection behavior does TLV70215PDBVR exhibit under overload?

TLV70215PDBVR triggers thermal shutdown at ~165°C junction temperature, disabling output until junction cools to ~145°C, then automatically resumes regulation. Continuous cycling indicates insufficient PCB copper area or excessive power dissipation - design must limit PD using RθJA = 249.2°C/W and keep TJ ≤125°C for reliable operation.