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LT3502EDC
+NomenclatureIC REG BUCK ADJ 500MA 8DFN
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FabricantAnalog Equipment GmbH.
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Pièce fabricant #LT3502EDC
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Package DFN-8P
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En stock2918
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Spécifications
| Attribut | Valeur |
| Package / Case | Tube |
| Part Status | Obsolete |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 3V |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 0.8V |
| Voltage - Output (Max) | 36V |
| Current - Output | 500mA |
| Frequency - Switching | 1.1MHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
Présentation
Description
This device can deliver up to 500mA of continuous output current, which is suitable for powering microcontrollers, communication devices, and other electronics. The LT3502EDC features a high switching frequency, typically 2MHz, allowing the use of small external components and resulting in a compact overall solution size.
The regulator includes essential features such as internal compensation, soft-start, and thermal shutdown to enhance reliability and ease of use. Its high efficiency, typically over 85%, ensures minimal power loss and reduced heat generation. The LT3502EDC is available in a thermally enhanced, 8-lead DFN (Dual Flat No-Lead) package, which aids in effective heat dissipation. This makes it an excellent choice for applications where space and efficiency are critical considerations.
Equivalent
1. Texas Instruments LM2831: A similar step-down regulator with comparable features.
2. Diodes Incorporated AP3402: Offers similar performance specifications.
3. ON Semiconductor NCP1529: Another step-down converter with similar characteristics.
When selecting an equivalent, ensure to check the specific electrical specifications and package to confirm compatibility with your application.
Features
Other notable features include current-mode control for fast transient response and loop stability, as well as an internal compensation network. The LT3502EDC also offers a soft-start feature to minimize inrush current during power-up, and a power-good indicator that signals when the output voltage is within regulation. Additionally, it includes over-temperature and over-current protection for enhanced reliability. The device comes in a compact and thermally efficient 2mm x 3mm DFN package, making it suitable for space-constrained applications.
Pinout
1. SW (Pin 1): Switch node connection; it is connected to the inductor.
2. GND (Pin 2): Ground connection for the device.
3. FB (Pin 3): Feedback pin to set the output voltage via an external resistor divider.
4. SHDN (Pin 4): Shutdown pin; pulling it low disables the regulator.
5. VIN (Pin 5): Input voltage pin; supplies power to the device.
6. RT (Pin 6): Set the switching frequency via an external resistor.
7. COMP (Pin 7): Compensation pin for loop stability.
8. BIAS (Pin 8): Optional bias pin for improved efficiency; can be tied to the output.
The LT3502EDC is suitable for applications requiring compact, high-efficiency power conversion solutions.
Manufacturer
Application
1. Consumer Electronics: Used in devices like smartphones, tablets, and portable game consoles for efficient power management.
2. Industrial Systems: Supports various industrial equipment by providing stable power supply and enhancing energy efficiency.
3. Automotive Electronics: Powers infotainment systems, instrument clusters, and other automotive applications requiring reliable voltage regulation.
4. Telecommunications: Facilitates power management in networking equipment and telecommunications infrastructure.
5. Battery-Powered Devices: Ideal for applications that require compact, energy-efficient power conversion to extend battery life.
Overall, it is suited for any application needing a compact, efficient, and reliable step-down regulator.