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MIC2291BD5 from MIC

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MIC2291BD5

Manufacturer: MIC, MICREL

1.2A PWM Boost Regulator Photo Flash LED Driver

Partnumber Manufacturer Quantity Availability
MIC2291BD5 MIC, MICREL 13955 In Stock

Description and Introduction

1.2A PWM Boost Regulator Photo Flash LED Driver **Enhance Your Power Management with the MIC2291BD5**  

In today’s fast-evolving electronics landscape, efficient power management is critical for optimizing performance and extending battery life. The **MIC2291BD5** is a high-performance, step-up DC-DC converter designed to meet the demands of modern portable and embedded applications.  

Featuring a compact **5-pin SOT-23** package, this device integrates a **1.2MHz switching regulator** capable of delivering up to **400mA** of output current. With an input voltage range of **0.8V to 5.5V**, the MIC2291BD5 is ideal for single-cell or dual-cell battery-powered systems, including IoT devices, wearables, and handheld electronics.  

Key advantages of the MIC2291BD5 include its **high efficiency** (up to **90%**), minimizing power loss and heat generation. The integrated **synchronous rectification** further enhances efficiency, making it a reliable choice for energy-sensitive designs. Additionally, its **low quiescent current** (just **20µA**) ensures minimal power drain during standby or light-load conditions.  

The device’s **fixed-frequency PWM operation** reduces noise and simplifies EMI filtering, while its **soft-start function** prevents inrush current during startup. With an adjustable output voltage (up to **5.5V**), engineers can easily tailor the solution to their specific requirements.  

For designers seeking a **small-footprint**, high-efficiency boost converter, the MIC2291BD5 offers a compelling balance of performance and reliability. Its robust feature set and ease of integration make it an excellent choice for powering next-generation electronics efficiently and effectively.  

Whether upgrading an existing design or developing new applications, the MIC2291BD5 delivers the power efficiency and flexibility needed to stay ahead in a competitive market.

Application Scenarios & Design Considerations

1.2A PWM Boost Regulator Photo Flash LED Driver

Alternative Part Number

  • AP3015AKTR-G1 --: Boost converter in a similar SOT-23-5 package with comparable input voltage and switching current ratings, suitable as a functional replacement.
  • LT1932ES6#TRPBF --: Constant-current boost LED driver with similar topology and current capability, usable in place of the MIC2291 for LED backlight applications.
  • TPS61165DRVR --: Boost LED driver with integrated switch and comparable current rating, offering a similar function in a small package.
  • LT1932ES6#TRMPBF --: Constant-current boost LED driver in a small SOT-23 package with comparable current capability and wide input range, offering a higher-performance alternative.
  • TPS61040DBVR --: Widely available boost converter in SOT-23-5 with similar switching frequency and current rating, providing a cost-effective alternative with good supply availability.

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