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LM25037MT
+BOMSWITCHING CONTROLLER, VOLTAGE-MO
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ManufacturerNational Semiconductor
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Mfr. Part #LM25037MT
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Datasheet LM25037MT DataSheet
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Package TSSOP-16
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In Stock1333
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Specifications
| Attribute | Value |
| Package | Bulk |
| ProductStatus | Active |
Overview
Description
Key features of the LM25037MT include programmable switching frequency, current mode control for superior performance, and cycle-by-cycle current limiting. It also offers a high-voltage start-up regulator, which simplifies designs by reducing the need for additional components. The controller is equipped with a variety of protection features, such as overvoltage protection (OVP), undervoltage lockout (UVLO), and thermal shutdown, ensuring reliable operation under fault conditions.
The LM25037MT is valued for its efficiency, flexibility, and robust performance, making it a popular choice for power supply designers seeking to implement efficient energy conversion solutions.
Equivalent
Features
1. Wide Input Voltage Range: Supports a broad input voltage range, making it suitable for various applications.
2. High-Frequency Operation: Capable of operating at high frequencies, which allows for smaller external components and a more compact design.
3. Current-Mode Control: Utilizes peak current-mode control to provide fast transient response and ease of loop compensation.
4. Flexible Topology: Supports both single-ended and double-ended topologies, including push-pull, half-bridge, and full-bridge configurations.
5. Integrated Start-Up Regulator: Includes an integrated high-voltage start-up regulator to simplify design.
6. Programmable Features: Offers programmable soft-start to limit inrush current and programmable slope compensation for improved stability.
7. Fault Protection: Features comprehensive fault protection, including overvoltage, overcurrent, and thermal shutdown.
8. Synchronization: Allows for synchronization with an external clock to reduce interference and improve performance in multi-controller systems.
These features make the LM25037MT an ideal choice for designing efficient and robust power management systems.
Pinout
1. VCC: Supply voltage input.
2. OUTA: Output driver A.
3. OUTB: Output driver B.
4. GND: Ground reference.
5. RES: Restart/reset timer pin.
6. CS: Current sense input.
7. RT: Oscillator timing resistor and frequency setting.
8. SYNC: Synchronization input.
9. RAMP: Provides slope compensation.
10. COMP: Error amplifier output.
11. FB: Feedback input.
12. SS: Soft-start control.
13. UVLO: Undervoltage lockout input.
14. REF: Reference voltage output.
15. VCLAMP: Input voltage clamp.
16. NC: No connection or reserved for future use.
This configuration supports a variety of functions like soft-start, current limiting, and frequency synchronization, making the LM25037MT versatile for power supply applications.
Manufacturer
Application
1. Telecommunications Equipment: Provides stable power supply for telecom systems.
2. Industrial Power Supplies: Offers efficient power management in industrial automation and control systems.
3. DC-DC Converters: Used in designing isolated converters in power distribution.
4. AC-DC Power Supplies: Facilitates the creation of efficient and reliable AC-DC power supply units.
5. Battery Chargers: Can be used in battery charging systems for controlled power delivery.
These applications benefit from its high efficiency, wide input voltage range, and robust fault protection features.