Texas Instruments TLV70015DDCT

Overview

TLV70015DDCT from Texas Instruments is a 200-mA, low-quiescent-current, low-dropout linear regulator with fixed 1.5-V output, designed for power-sensitive portable applications. It delivers 2% output accuracy, 31-μA quiescent current, 43-mV dropout at 50 mA, and operates from 2 V to 5.5 V input - enabling reliable voltage regulation in Li-ion–powered handheld devices.

For engineers reviewing the TLV70015DDCT datasheet, TLV70015DDCT pinout, TLV70015DDCT application, or TLV70015DDCT equivalent, key selection considerations include its ultra-low IQ, stability with 0.1-μF ceramic output capacitance, high PSRR (68 dB @ 1 kHz), thermal shutdown, and enable-controlled operation in space-constrained SC70-5 packaging.

Technical Context

The TLV70015DDCT employs a PMOS pass transistor architecture to achieve low dropout and maintain regulation down to 43 mV at 50 mA load. Its precision bandgap reference and error amplifier ensure ±2% DC accuracy over –40°C to +125°C junction temperature.

It integrates active-high enable logic (EN ≥ 0.9 V for on), undervoltage lockout (UVLO = 1.9 V), current limiting (220–860 mA), and thermal shutdown (trip at ~160°C, reset at ~140°C), supporting robust operation in battery-powered systems with variable input conditions.

Key Specifications

Pinout & Package

TLV70015DDCT is housed in a 5-pin SC70 package (2.00 mm × 1.25 mm body size), optimized for compact portable designs. Thermal performance is characterized by R_θJA = 307.6°C/W.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLS850F0TESK and MCP1700T-1502E/TT, the TLV70015DDCT uniquely balances ultra-low IQ (31 μA), integrated EN control, full protection suite, and SC70-5 compactness - making it the optimal choice for space- and power-constrained portable consumer electronics where reliability and design simplicity are prioritized.

Availability

TLV70015DDCT is available at Aetrix Electronics and suitable for wireless handsets, Bluetooth® devices, and Li-ion operated handheld products requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for TLV70015DDCT 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 product portfolios.

The TLV700 series was engineered specifically for portable battery-powered equipment - emphasizing ultra-low quiescent current, small-footprint packaging, and robust transient performance in resource-constrained environments.

FAQ

What is the minimum input voltage required for TLV70015DDCT to regulate at 1.5 V output?

The TLV70015DDCT requires VIN ≥ VOUT + VDO. At 50 mA load, VDO = 43 mV, so minimum VIN = 1.543 V. However, per Recommended Operating Conditions, VIN must be ≥2 V for guaranteed specification compliance across temperature and process variation - this ensures 2% accuracy, PSRR, and transient performance remain within datasheet limits.

Does TLV70015DDCT require an input capacitor for stability?

No, the TLV70015DDCT does not require an input capacitor for stability. However, TI recommends a 0.1–1 μF low-ESR ceramic capacitor from IN to GND to improve transient response, noise rejection, and ripple suppression - especially when source impedance exceeds 2 Ω or the device is remote from the power source.

Can TLV70015DDCT operate without a load connected to the output?

Yes, the TLV70015DDCT regulates to specified accuracy (±2%) with no output load. Ground pin current remains at 31 μA typical under zero-load conditions, and the device maintains stability with ≥0.1 μF effective output capacitance - making it suitable for always-on monitoring circuits with intermittent load activation.

What is the thermal shutdown behavior of TLV70015DDCT?

The TLV70015DDCT activates thermal shutdown at ~160°C junction temperature and resets at ~140°C. During continuous overload, it cycles between current limit and thermal shutdown to prevent damage. For reliable operation, design must limit TJ to ≤125°C using appropriate PCB copper area, thermal vias, and ambient derating - verified via thermal simulation or measurement.

Is TLV70015DDCT compatible with ceramic capacitors having high DC bias derating?

Yes - TLV70015DDCT is stable with ≥0.1 μF *effective* capacitance at the output, meaning the capacitance value *under actual operating DC bias and temperature*. For example, a 1-μF X5R 0402 capacitor may drop to 0.15 μF at 1.5 V bias and 85°C; as long as its effective value stays ≥0.1 μF, stability is ensured - enabling use of smaller, lower-cost dielectrics.