LM1117MP-1.8

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

LM1117MP-1.8 is a three-terminal, adjustable, low-dropout voltage regulator, making it an ideal candidate for high-volume, low-power applications in which space is limited. This device can operate from an input supply of 1 to 18V and provides a regulated output of 1.8V with a maximum output current of 1A. The LM1117MP-1.8 utilizes an advanced BiCMOS process allowing the device to offer very high accuracy and low dropout voltage while remaining in a very small surface mount package.

Features and Benefits

The LM1117MP-1.8 offers a wide variety of features and benefits, including:

• Wide operating voltage range of 1 to 18V
• Accurate output voltage regulation with excellent ripple rejection performance
• Low dropout voltage at a full 1A output current
• High accuracy: 2% over the full temperature range
• Small surface mount package

Applications

The LM1117MP-1.8 is ideally suited for high-volume, low-power applications such as:

• Battery-powered systems, such as PDAs and Notebook computers
• Cellular phones and other portable applications
• Microprocessor-based systems with limited power budgets

Working Principle

The LM1117MP-1.8 is a three-terminal, adjustable, low-dropout voltage regulator. It utilizes an internal PNP pass transistor along with two external resistors for setting the output voltage. This device can maintain accurate output voltage regulation over an input supply range of 1 to 18V and provides a regulated output of 1.8V with a maximum output current of 1 A. The PNP pass transistor is operated in a current sink configuration with the current sourced from the output voltage.

When the load current demand is low, the PNP transistor is turned off and the output voltage is held at the desired setpoint. As the load current increases, the PNP transistor conducts more current, providing additional load current as necessary. The advantage of this architecture is that the dropout voltage at 1A is typically only 1V, allowing the use of very small power supplies.

Package Types

The LM1117MP-1.8 is available in different package types, including SOT-223, TO-220, SOT-X2, Matte Gull Wing, and DTMF-4. Each package type has its own unique features and benefits.

The SOT-223 package type offers the most compact design and is the most commonly used package type for voltage regulators. It has a small outline with excellent thermal performance, making it ideal for high-volume, low-power applications.

The TO-220 package type has superior thermal characteristics, making it the most appropriate choice for higher power applications. It also has excellent thermal dissipation compared to other package types, allowing it to provide sufficient power even in higher power applications.

The SOT-X2 package type is a kind of “half-size” SOT-223 package, offering superior reliability and energy savings. This package is smaller than the SOT-223 package, but still provides enough space for good thermal dissipation. The Matte Gull Wing package type offers the same advantages as the SOT-X2 package, but is even smaller and offers additional flexibility. Finally, the DTMF-4 package type provides even more space savings than the SOT-X2 and Matte Gull Wing packages, allowing it to be used in higher power applications.

Conclusion

The LM1117MP-1.8 is a low-dropout, low-power, highly accurate voltage regulator, making it an ideal choice for high-volume, low-power applications. It has a wide operating input voltage range and offers excellent ripple rejection performance. The device comes in a variety of packages, allowing it to be used in different applications. With its high accuracy and low dropout voltage, the LM1117MP-1.8 provides a reliable, cost-effective solution for portable applications and high-volume, low-power systems.

The specific data is subject to PDF, and the above content is for reference