Texas Instruments TLV1117 Low-Dropout Regulator – SOT-223 Package

Texas Instruments TLV1117 Low-Dropout Linear Voltage Regulator – Compact, Efficient, and Reliable

The TLV1117 from Texas Instruments is a highly reliable low-dropout (LDO) linear regulator designed to provide a stable output voltage in a wide range of embedded and industrial systems. With its fixed and adjustable versions, the TLV1117 supports numerous voltage regulation tasks for power-sensitive designs, especially where space and efficiency are critical concerns.

This LDO regulator features a typical dropout voltage of only 1.1 V at 800 mA, enabling the use of low input voltages without compromising output regulation. With its minimal external component requirements, thermal protection, and compact SOT-223 surface-mount package, the TLV1117 simplifies board layout and thermal management—making it ideal for consumer electronics, industrial control systems, and communication equipment.

Technical Parameters and Key Specifications

Specification	Value
Output Voltage Options	Fixed: 1.8V, 2.5V, 3.3V, 5V; Adjustable: 1.25V to 13.8V
Dropout Voltage	1.1 V at 800 mA
Output Current (Max)	800 mA
Quiescent Current	1 mA
Load Regulation	12 mV (typ)
Line Regulation	0.2% (typ)
Operating Temperature Range	0°C to 125°C
Package Type	SOT-223, TO-220, TO-252

Why Choose TLV1117 Over Standard Linear Regulators?

The TLV1117 stands out among traditional linear regulators due to its optimized balance of low dropout voltage, compact footprint, and ease of implementation. Its 1.1 V dropout voltage at full load allows the regulator to maintain consistent voltage outputs even with relatively low input sources—a vital requirement in modern low-power systems.

Unlike many general-purpose LDOs, TLV1117 offers tighter line and load regulation, resulting in more precise voltage control across varying loads and supply fluctuations. Its built-in short-circuit protection and thermal shutdown features add extra safety for embedded applications operating under variable environmental conditions.

Designers favor the TLV1117 not just for its electrical performance, but also for the trustworthiness of the Texas Instruments brand. With a proven record in delivering robust analog ICs, TI ensures this regulator meets performance expectations in both consumer and industrial-grade deployments.

Typical Applications for the TLV1117

• Embedded Systems: Powers low-voltage microcontrollers and logic circuits with stable regulated output.
• Communication Equipment: Used in signal transmission hardware to reduce noise from unstable power sources.
• Consumer Electronics: Maintains voltage consistency in devices such as routers, set-top boxes, and audio systems.
• Industrial Controls: Provides voltage regulation in factory automation equipment and process controllers.
• Test and Measurement Devices: Enhances accuracy by providing clean, consistent power to analog front-ends.

Texas Instruments – A Trusted Name in Analog ICs

Texas Instruments has long been a leader in analog semiconductor innovation. The TLV1117 represents TI’s commitment to creating high-performance, power-efficient components that engineers can trust in demanding environments. All TI products are manufactured with tight process control and undergo rigorous qualification and validation testing, ensuring consistent quality, long-term availability, and compliance with global safety standards.

Frequently Asked Questions (FAQ)

1. What is the main advantage of using the TLV1117 in embedded systems?

Its low-dropout voltage and compact SOT-223 package make it ideal for embedded systems that need reliable voltage regulation with minimal board space and high efficiency.

2. Can the TLV1117 regulate voltage from a low input supply?

Yes. Thanks to its 1.1 V dropout voltage, it can regulate effectively even with minimal headroom between input and output, which is important in battery-powered systems.

3. What protection features are built into the TLV1117?

It includes built-in thermal shutdown and short-circuit protection mechanisms, helping safeguard both the regulator and the load in fault conditions.

4. Is the TLV1117 suitable for noise-sensitive analog circuits?

Yes. Its clean output, low quiescent current, and excellent line/load regulation make it well-suited for analog applications requiring low ripple and noise.

5. What packaging options are available for this regulator?

It is available in several industry-standard packages such as SOT-223, TO-220, and TO-252, giving designers flexibility in both surface-mount and through-hole designs.