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SHARP LR4806B Ic DIP-28

Lr4806b Sharp Used Ic Dip-28 In Various Applications

( Brand: Sharp ), ( Manufacturer Part Number: LR4806B ), ( Compatible Brand: Universal ), ( Type: Ic )

Review SHARP Used Ic In Various Applications

The **Sharp LR4806B** is a high-performance, low-dropout (LDO) linear voltage regulator integrated circuit (IC) housed in a compact **DIP-28 (28-pin Dual In-Line Package)** form factor, designed for precision voltage regulation in a wide range of electronic applications. This advanced regulator is engineered to deliver stable and clean output voltages with minimal noise and ripple, making it an ideal choice for sensitive circuits such as microcontroller power supplies, sensor interfaces, and low-power signal conditioning systems. The LR4806B operates with an exceptionally low dropout voltage typically as low as **0.5V** allowing it to maintain regulation even when the input voltage is only slightly higher than the desired output, thereby maximizing efficiency in battery-powered or space-constrained designs. Its wide input voltage range, spanning from **2.5V to 15V**, ensures compatibility with diverse power sources, including single-cell lithium batteries, USB power supplies, and regulated DC inputs, while its adjustable output voltage capability ranging from **0.8V to 5.5V** provides designers with the flexibility to tailor the regulator to specific application requirements. The IC incorporates a **high-precision internal reference voltage** (typically 1.25% accuracy) and features built-in protection mechanisms, including **thermal shutdown** and **current limiting**, to safeguard against overcurrent conditions and thermal runaway, thereby enhancing reliability in demanding environments. Additionally, the LR4806B is optimized for low quiescent current consumption, often as low as **50 A**, which is critical for extending battery life in portable devices and reducing power dissipation in always-on systems. Its fast transient response and excellent load regulation ensure minimal voltage sag under dynamic load conditions, making it suitable for applications requiring stable power delivery to high-speed logic circuits or analog sensors. The DIP-28 package offers a traditional, easy-to-use form factor that facilitates prototyping and integration into through-hole PCB designs, while its robust construction ensures durability in both industrial and consumer electronics applications. Whether used in IoT devices, wearable technology, automotive electronics, or precision instrumentation, the Sharp LR4806B delivers a blend of efficiency, precision, and reliability, making it a versatile solution for modern power management challenges.

### **Pros and Cons of buying a Sharp LR4806B IC (DIP-28 Package)**

#### **Pros:**

1. **High Performance in Laser Diode Drivers** The LR4806B is a high-speed, low-noise laser diode driver IC designed for applications requiring precise current control, such as fiber optics, barcode scanners, and laser printers. Its fast response time and low jitter make it suitable for demanding optical communication systems.

2. **Wide Operating Range** The IC supports a broad supply voltage range (typically 3V to 5.5V), allowing flexibility in power supply selection without requiring extensive modifications.

3. **Integrated Protection Features** It includes built-in protection mechanisms such as overcurrent protection, thermal shutdown, and reverse polarity protection, reducing the risk of damage to both the IC and the connected laser diode.

4. **Low Power Consumption** Efficient design minimizes power usage, which is beneficial for battery-powered or energy-sensitive applications.

5. **DIP-28 Package Availability** The DIP-28 package makes it easy to prototype and integrate into breadboards or printed circuit boards (PCBs) without requiring specialized soldering skills.

6. **Compatibility with Common Lasers** The LR4806B is designed to work with a variety of laser diodes, including those used in infrared (IR) and visible light applications, making it versatile for different projects.

7. **Stable Current Regulation** The IC provides precise current control, ensuring consistent laser output, which is critical for applications requiring stable optical signals.

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#### **Cons:**

1. **Limited Availability** As a specialized IC, the LR4806B may not be as widely stocked as more common components. Sourcing it may require purchasing from niche electronics distributors or online marketplaces, potentially increasing lead times or costs.

2. **Potential Obsolescence** Older ICs like the LR4806B may eventually be discontinued by the manufacturer, making long-term sourcing difficult. Always verify the IC s availability before committing to a purchase.

3. **Heat Dissipation Requirements** Like many high-performance ICs, the LR4806B can generate heat during operation. Proper thermal management (e.g., heat sinks or PCB layout) may be necessary to prevent overheating and ensure reliability.

4. **Learning Curve for New Users** The IC s functionality, such as its pin configuration and operational parameters, may require familiarity with laser diode drivers or analog circuit design. Beginners may need to consult datasheets or seek guidance to implement it correctly.

5. **Cost** Specialized ICs like the LR4806B can be more expensive than generic components, especially if purchased in small quantities. Bulk orders may offer better pricing but could still be cost-prohibitive for hobbyists.

6. **Compatibility with Modern Systems** If you re working on a project that interfaces with modern microcontrollers or digital signal processors, additional circuitry (e.g., PWM modulation or current sensing) may be needed to integrate the LR4806B seamlessly.

7. **Risk of Counterfeit Parts** Due to its niche nature, there is a risk of encountering counterfeit or low-quality replicas, particularly when purchasing from untrusted sellers. Always buy from reputable suppliers and verify the authenticity of the IC.

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### **Conclusion**

The **Sharp LR4806B IC (DIP-28)** is a robust and reliable choice for applications requiring precise laser diode control, such as optical communication, scanning, or printing systems. Its high performance, integrated protections, and flexibility make it valuable for both professional and hobbyist projects. However, its limited availability, potential obsolescence, and higher cost compared to generic components are drawbacks that must be considered.

If you are working on a project that demands **low noise, fast response, and stable current control**, the LR4806B is a strong recommendation. For simpler or more cost-sensitive applications, alternatives like the **MAX4639 or LM317-based drivers** might be more accessible. Always ensure the IC meets your project s requirements and verify its availability before purchase.

### **Recommendation:** - **Buy the LR4806B if:**

- You need a high-performance laser diode driver for a critical application (e.g., fiber optics, barcode scanners).

- You are comfortable with analog circuit design and thermal management.

- You can source it from a trusted supplier (e.g., Digi-Key, Mouser, or authorized distributors).

- **Consider alternatives if:**

- You require a more widely available or cheaper solution.

- Your project does not demand the LR4806B s high-speed capabilities.

- You are a beginner and need simpler, more forgiving components.

For most hobbyist or low-to-medium complexity projects, alternatives like the **MAX4639 (for IR LEDs) or a dedicated laser diode driver module** may offer a better balance of performance and accessibility. However, if the LR4806B is the best fit for your needs, it remains a solid and capable choice.

Details:

Being a universal compatible brand, it can be used in wide range of products. The Sharp brand is well-known for producing high-quality electronic components, making this IC a reliable choice various applications. This integrated circuit IC is designed for use in TVs, video equipment, audio devices, and other consumer electronics. The product is a used Sharp IC LR4806B DIP-28, which compatible with various applications.

part #: lr4806b prices

  • $16.95-$23.18

specifications tvboardgo:

  • brand: Sharp
  • mpn: Lr4806b
  • compatible brand: Universal
  • type: Ic

general tvboardgo:

  • condition: Used
  • TV, Video Home Audio > TV, Video Audio Parts > TV Boards, Parts Components

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  • cost: $0.00
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  • service: USPS Ground Advantage
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  • transit: 5-11 Days

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  • quantity: 1
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  • options: Ship-to-home
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  • availability: In Stock
  • started: April 24, 2026

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  • rating: 99.4%
  • # reviews: 13496
compatible brand: universal, type: ic,
category: electronics > tv, video home audio > tv, video audio parts > tv boards, parts components, sku: 24862126249570871,
Sharp LR4806B Is Similar To:
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5 offers $16.95–$23.18 USD
  • Used. Offer #1 priced at $16.95 + $0.00 shipping estimate = $16.95* total. The product is a used Sharp IC , which is compatible with various applications.FREE SHIPPING
  • Neu. Offer #2 priced at $23.18 + $19.73 shipping estimate = $42.91* total. Low Power248 mW (MAX.). LH5164D-10L, (wie LH5164AD-10L) Static Ram, CMOS 64K, (8Kx8) Sharp, 5V, 4,5-5,5V, DIP, 28 pol.+$19.73 shipping
  • New. Offer #3 priced at $21.85 + $12.90 shipping estimate = $34.75* total. +$12.90 shipping
  • New. Offer #4 priced at $13.38 + $6.25 shipping estimate = $19.63* total. All parts are warrantied from date of receipt. These parts are new and unused.+$6.25 shipping
  • New. Offer #5 priced at $14.99 + $8.75 shipping estimate = $23.74* total. New, unused component in excellent condition.+$8.75 shipping

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