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LM2577SX-ADJ
+StücklisteIC REG MULT CONFG ADJ 3A TO263
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HerstellerTexas Instruments
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Herstellerteil #LM2577SX-ADJ
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Paket TO-263-5
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Auf Lager5939
365 Tage Qualitätsgarantie
7*24 Stunden-Servicegarantie
90-Tage Kundendienstgarantie
Originalproduktgarantie
Spezifikationen
| Attribut | Wert |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Series | SIMPLE SWITCHER® |
| Part Status | Not For New Designs |
| Function | Step-Up, Step-Up/Step-Down |
| Output Configuration | Positive or Negative |
| Topology | Boost, Flyback, Forward Converter |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 3.5V |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 1.23V |
| Voltage - Output (Max) | 60V (Switch) |
| Current - Output | 3A (Switch) |
| Frequency - Switching | 52kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
Übersicht
Description
Key features of the LM2577SX-ADJ include:
1. Wide Input Voltage Range: Supports a broad range of input voltages, enhancing compatibility with various power sources.
2. High Efficiency: Efficient energy conversion reduces power loss, improving battery life in portable applications.
3. Switching Frequency: Operates at a fixed frequency, typically around 52 kHz, ensuring stability and reliability.
4. Current Limiting: Built-in overcurrent protection enhances safety and reliability.
5. Thermal Shutdown: Protects the device from overheating under high load or fault conditions.
Common applications include powering devices like LED drivers, battery-powered equipment, and portable electronics where higher voltages are required from smaller power sources.
Equivalent
1. XL6009 - A versatile boost converter known for similar capabilities.
2. MC34063 - An adaptable DC-DC converter for a variety of applications.
3. LTC1871 - A high-efficiency boost controller with comparable features.
4. TPS61032 - A boost converter with adjustable output.
5. NCP1403 - A low voltage boost converter offering similar functionality.
Always verify specific requirements and characteristics, as substitutes may differ in pin configuration or electrical specifications.
Features
1. Adjustable Output Voltage: It supports a wide output voltage range, which can be set using external resistors.
2. High Efficiency: Typically operates at efficiencies over 80%.
3. Wide Input Voltage Range: Suitable for a variety of power sources.
4. Fixed Switching Frequency: Operates at 52 kHz, aiding in predictable performance.
5. Internal Power Switch: Reduces the need for external components.
6. Output Current Capability: Can deliver up to 3A, depending on input/output voltage and conditions.
7. Thermal Shutdown Protection: Protects the device from overheating.
8. Current Limiting: Prevents excessive current draw that could damage the circuit.
9. Versatile Application: Suitable for battery-powered devices, power supplies, and other applications needing voltage boosting.
These features make the LM2577SX-ADJ a reliable choice for designing efficient power conversion circuits in a compact package.
Pinout
1. Pin 1 (SW): This is the switch output pin. It is the collector of the internal NPN switch and is connected to the inductor and the diode in a boost converter setup.
2. Pin 2 (Ground): This is the ground pin for the device and is the reference point for the other pins.
3. Pin 3 (Feedback - FB): This pin is used to set the output voltage via an external resistor divider network. It compares a fraction of the output voltage to an internal reference.
4. Pin 4 (VC - Compensation): This pin provides compensation for the control loop, typically connected to an external capacitor and resistor for stability and transient response tuning.
5. Pin 5 (VIN): This is the input voltage supply pin, connected to the source voltage.
These pin functions make the LM2577SX-ADJ suitable for applications requiring efficient voltage step-up conversion.