LM2577S-12
Compact design for easy integration
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製造商零件號 # : LM2577S-12
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包裝/封裝: TO-263-5
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製造商: Texas Instruments
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產品分類 : Voltage Regulators - DC DC Switching Regulators
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LM2577S-12 數據表
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詳細說明
Texas Instruments' LM2577S-12 is a step-up voltage regulator that stands out for its wide input voltage range of 3V to 40V, making it suitable for a diverse array of power sources. With an output voltage of 12V and the ability to deliver a maximum output current of 3A, this regulator provides reliable and efficient voltage conversion. Its built-in overcurrent and thermal protection features ensure the safety and reliability of the device, even in challenging operating conditions. The high switching frequency of 52 kHz contributes to reducing the size and cost of external components, while the regulator's impressive efficiency rating of up to 85% solidifies its suitability for applications where power consumption is a key concern. Whether it's for battery-powered devices, solar panels, or other power supplies, the LM2577S-12 delivers consistent and efficient performance, making it an indispensable component for various electronic applications
主要特徵
- This step-up regulator offers adjustable output up to 60V with a maximum current of 3A.
- Its input range is from 3.5V to 40V, making it suitable for various applications.
應用
- Robust voltage regulation
- Easy to integrate into circuits
- Low power consumption
規格
以下是所選零件的基本參數,涉及零件的特性及其所屬類別。
Product Category ! | Switching Voltage Regulators | RoHS | N |
Mounting Style | SMD/SMT | Package / Case | TO-263-5 |
Topology | Boost | Output Voltage | 12 V |
Output Current ! | 3 A | Number of Outputs | 1 Output |
Input Voltage, Min | 3.5 V | Input Voltage, Max | 40 V |
Switching Frequency ! | 56 kHz | Minimum Operating Temperature | - 40 C |
Maximum Operating Temperature ! | + 125 C | Series | LM2577 |
Brand | Texas Instruments | Load Regulation ! | 50 mV |
Product Type ! | Switching Voltage Regulators | Factory Pack Quantity | 45 |
Subcategory | PMIC - Power Management ICs | Tradename | SIMPLE SWITCHER |
Type | Step Up | Unit Weight | 0.056128 oz |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等,這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is LM2577S-12?
The LM2577S-12 is a step-up voltage regulator IC (integrated circuit) manufactured by Texas Instruments. It is designed to provide a higher output voltage than the input voltage, making it suitable for applications such as boosting battery voltage, generating positive voltage rails, and powering devices from a variety of sources.
How Does LM2577S-12 Work?
The LM2577S-12 operates by efficiently converting a lower input voltage to a higher output voltage using a step-up (boost) topology. It utilizes an internal switching regulator to achieve the voltage conversion, offering high efficiency and reduced power dissipation. The IC includes features such as overcurrent protection and thermal shutdown for reliable operation.
How Many Pins does LM2577S-12 have and What are the Functions of the Pinout Configuration?
The LM2577S-12 is housed in an 8-pin metal can (TO-263) package or similar. The pinout configuration includes:
- VIN: Input voltage pin.
- GND: Ground pin.
- SW: Switching node for the internal switch.
- FB: Feedback pin for output voltage regulation.
- ON/OFF: On/Off control pin for enabling or disabling the regulator.
- VOUT: Output voltage pin.
What are the Pros and Cons of LM2577S-12?
Pros:
- Efficient Voltage Boosting: Provides efficient step-up voltage conversion for various applications.
- Wide Input Voltage Range: Supports a wide input voltage range, making it versatile for different power sources.
- Compact Package: Available in a compact package suitable for space-constrained designs.
- Overcurrent Protection: Includes overcurrent protection for enhanced system reliability.
- Thermal Shutdown: Features thermal shutdown to prevent excessive heat buildup.
Cons:
- External Components: May require additional external components such as inductors and capacitors for optimal performance.
- Complexity: Switching regulators like the LM2577S-12 may require careful consideration of layout and noise for best results.
Are There Any Equivalents/Alternatives to LM2577S-12 for Recommendation?
- The TPS61200 from Texas Instruments is a comparable step-up regulator with similar features.
- Alternatives to the LM2577S-12 include the LT1073 from Analog Devices and the MAX1771 from Maxim Integrated.
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