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LM2731YMFX
+BOMIC REG BOOST ADJ 1.8A SOT23-5
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メーカーSTマイクロエレクトロニクス
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メーカー品番 #LM2731YMFX
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在庫状況3482
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| Part Status | Obsolete |
| Function | Step-Up |
| Output Configuration | Positive |
| Topology | Boost |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 2.7V |
| Voltage - Input (Max) | 14V |
| Voltage - Output (Min/Fixed) | 2.7V |
| Voltage - Output (Max) | 22V (Switch) |
| Current - Output | 1.8A (Switch) |
| Frequency - Switching | 600kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
| Base Product Number | LM2731 |
概要
Description
Key features include an adjustable output voltage with a feedback pin, built-in soft-start to prevent inrush current, and a low quiescent current for improved battery life. The device operates with a wide input voltage range and offers multiple protection features, such as over-voltage protection and thermal shutdown.
The LM2731YMFX is housed in a compact 6-pin SOT-23 package, making it suitable for space-constrained applications. Its high efficiency and versatile output capabilities make it a popular choice for designers seeking to optimize power management in their circuits.
Equivalent
1. TPS61030 - Texas Instruments
2. MAX6108 - Maxim Integrated
3. LT1302 - Analog Devices
4. MIC2293 - Microchip Technology
5. NCP1402 - ON Semiconductor
These alternatives provide similar functionality and performance, but always check specific application requirements and datasheets for compatibility.
Features
1. Input Voltage Range: Supports input voltages from 2.7V to 5.5V, making it suitable for single-cell lithium-ion or alkaline battery applications.
2. Output Voltage: Can generate output voltages up to 28V.
3. Output Current: Delivers up to 1.5A output current.
4. Efficiency: Offers high efficiency (up to 95%) to extend battery life.
5. Switching Frequency: Operates at a fixed switching frequency of 1.2 MHz, allowing for smaller external components.
6. Mode Operation: Features a unique mode operation to optimize efficiency under varying load conditions.
7. Protection Features: Includes over-current protection and thermal shutdown for safe operation.
8. Compact Package: Available in a small 10-pin MSOP package, aiding in space-constrained designs.
These features make the LM2731YMFX suitable for portable devices, LED drivers, and other applications requiring efficient power conversion.
Pinout
Key functions of the pins include:
1. VIN: Input voltage supply.
2. SW: Switch node connecting to the inductor.
3. GND: Ground connection.
4. COMP: Compensation node for stability.
5. FB: Feedback pin for output voltage regulation.
6. R1 & R2: External resistors for setting output voltage.
7. EN: Enable pin to turn the device on or off.
8. PWM: PWM control for low-power operation.
9. SS: Soft-start pin to control the startup time.
10. PGOOD: Power good indicator output.
The LM2731 provides features such as high efficiency, low quiescent current, and adjustable output voltage range, making it suitable for various portable applications.
Manufacturer
The LM2731 is a high-efficiency, step-up (boost) DC-DC converter designed for applications requiring power management solutions. TI's focus on developing cutting-edge technology and solutions has made it a leader in the semiconductor industry, with a strong emphasis on research, development, and engineering.
With a history dating back to 1930, Texas Instruments has built a reputation for quality and reliability, serving a diverse range of sectors and contributing significantly to advancements in electronics and digital systems.