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LM25116MH
+NomenclatureIC REG CTRLR BUCK 20TSSOP
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FabricantTexas Instruments
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Pièce fabricant #LM25116MH
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Package HTSSOP (PWP)-20
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En stock3631
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Spécifications
| Attribut | Valeur |
| Package | Tube |
| ProductStatus | Not For New Designs |
| OutputType | Transistor Driver |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| NumberofOutputs | 1 |
| OutputPhases | 1 |
| Voltage-Supply(Vcc/Vdd) | 6V ~ 42V |
| Frequency-Switching | 50kHz ~ 1MHz |
| SynchronousRectifier | Yes |
| ClockSync | Yes |
| ControlFeatures | Enable, Frequency Control, Ramp, Soft Start |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 20-PowerTSSOP (0.173, 4.40mm Width) |
Présentation
Description
The LM25116MH features peak current-mode control, which provides fast transient response and simplified loop compensation. It also includes programmable switching frequency, adjustable output voltage, and integrated fault protection features such as cycle-by-cycle current limiting, thermal shutdown, and undervoltage lockout. The device's synchronization capability allows it to work with external clock sources for precise control over the switching frequency, which helps minimize electromagnetic interference (EMI).
Overall, the LM25116MH is well-suited for high-performance applications requiring efficient power conversion, reliability, and flexibility in design. Its compact design and versatile features make it an excellent choice for engineers working on complex power management systems.
Equivalent
Features
1. Wide Input Voltage Range: It supports an input voltage range from 6 V to 42 V, making it suitable for automotive and industrial applications.
2. High Efficiency: The controller operates in a synchronous buck topology, which reduces power loss and enhances efficiency.
3. Adjustable Switching Frequency: The switching frequency can be set between 50 kHz and 1 MHz, providing flexibility in optimization for size and efficiency.
4. Integrated High-Side and Low-Side Drivers: These drivers help minimize external component count and simplify the design process.
5. Cycle-by-Cycle Current Limiting: Protects the system by limiting the current through the power MOSFETs during overload conditions.
6. Internal Soft-Start: Gradually ramps up the output voltage during start-up to prevent inrush currents.
7. Thermal Shutdown: Provides protection by shutting down the device if it overheats.
8. Adjustable Output Voltage: Offers flexibility in setting the desired output voltage.
These features make the LM25116MH suitable for high-performance applications requiring robust power management.
Pinout
1. VIN: Power input for the controller.
2. UVLO: Undervoltage lockout pin.
3. RT/SYNC: Sets the switching frequency or synchronizes with an external clock.
4. EN: Enable pin to start/stop the controller.
5. COMP: Compensation network pin for stability.
6. FB: Feedback pin for output voltage regulation.
7. VCC: Internal regulator output, often used to power internal circuits.
8. BOOT: Supplies power to the high-side MOSFET driver.
9. HO: High-side gate drive output.
10. SW: Switch node, connected to the output inductor.
11. LO: Low-side gate drive output.
12. CS: Current-sense input.
13. CSG: Ground reference for the current sense.
14. AGND: Analog ground.
15. PGND: Power ground.
16. SS/TRK: Soft-start or tracking control.
17. RAMP: Sets the slope compensation ramp.
18. RES: Resistor connection for current limit setting.
19. DIS: Fault detection and disable.
20. OUT: Output voltage monitor.
These pins support the controller's operation by managing power delivery, protection features, and device configuration.
Manufacturer
Application
1. Telecommunications: Powering network infrastructure equipment.
2. Automotive: Supporting systems in vehicles that require stable power supply.
3. Industrial: Powering industrial control systems and automation equipment.
4. Servers and Storage: Providing power management in data centers.
5. Computing: Used in laptops and workstations for efficient power conversion.
6. Medical Equipment: Ensures reliable power supply for various devices.
7. Consumer Electronics: Powers high-performance gadgets and appliances.
The device features wide input voltage range, high efficiency, and robust protection mechanisms, making it suitable for a variety of robust and reliable power applications.