Abbildungen dienen nur als Referenz
LM25116MHX
+StücklisteIC REG CTRLR BUCK 20TSSOP
-
HerstellerTexas Instruments
-
Herstellerteil #LM25116MHX
-
Paket HTSSOP-20
-
Auf Lager6094
365 Tage Qualitätsgarantie
7*24 Stunden-Servicegarantie
90-Tage Kundendienstgarantie
Originalproduktgarantie
Spezifikationen
| Attribut | Wert |
| Package / Case | Tape & Reel (TR) |
| Part Status | Obsolete |
| Output Type | Transistor Driver |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Number of Outputs | 1 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 6V ~ 42V |
| Frequency - Switching | 50kHz ~ 1MHz |
| Synchronous Rectifier | Yes |
| Clock Sync | Yes |
| Control Features | Enable, Frequency Control, Ramp, Soft Start |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
Übersicht
Description
The LM25116MHX features peak current mode control, which ensures fast transient response and ease in loop compensation. It incorporates a high-side and low-side N-channel MOSFET driver for efficient power conversion. The controller also includes important protections such as overvoltage, undervoltage lockout, and thermal shutdown to enhance system reliability.
Additional features include adjustable output voltage, programmable switching frequency, and the capability to synchronize with an external clock. This flexibility allows designers to tailor the LM25116MHX to specific application requirements while ensuring robust performance. Overall, the LM25116MHX is a versatile and efficient choice for modern DC-DC conversion needs.
Equivalent
Features
1. Wide Input Voltage Range: Supports 7.5V to 42V, making it suitable for various applications, including automotive and industrial systems.
2. High Efficiency: Utilizes synchronous rectification to improve efficiency across the load range.
3. Adjustable Output Voltage: Allows precise control of output voltage, adaptable to different requirements.
4. Current-Mode Control: Provides excellent line and load regulation and simplifies feedback loop compensation.
5. Integrated High-Side and Low-Side Drivers: Reduces component count and simplifies design by driving external MOSFETs directly.
6. Cycle-by-Cycle Current Limiting: Protects against over-current conditions without compromising performance.
7. Programmable Switching Frequency: Offers flexibility in optimizing efficiency and component size.
8. Startup Options: Features include soft-start and frequency synchronization capabilities.
9. Protection Features: Includes thermal shutdown, undervoltage lockout, and overvoltage protection to enhance reliability.
These features make the LM25116MHX a versatile choice for efficient power management in demanding environments.
Pinout
Here is a concise description of the pin functions:
1. VIN: Input voltage supply.
2. EN: Enable input to turn the device on or off.
3. UVLO: Undervoltage lockout input.
4. RT: Connects to a resistor to set the switching frequency.
5. SYNC: Synchronization input for switching frequency.
6. ILIM: Current limit threshold setting.
7. COMP: Compensation network for feedback loop.
8. FB: Feedback input for regulation.
9. SS: Soft-start control.
10. VCC: Internal bias supply.
11. BOOT: Bootstrap for high-side driver.
12. SW: Switch node connection.
13. CS: Current sense input.
14. CSG: Ground reference for current sense.
15. HO: High-side gate drive output.
16. HS: High-side MOSFET source connection.
17. LO: Low-side gate drive output.
18. PGND: Power ground connection.
19. SGND: Signal ground connection.
20. PWRPAD: Exposed pad for heat dissipation and electrical ground.
This component is well-suited for applications requiring efficient regulation of high input voltages to lower output voltages.
Manufacturer
Application
1. Telecommunications Equipment: Used for efficient power conversion in base stations and networking hardware.
2. Industrial Power Systems: Provides reliable power regulation for machinery and control systems.
3. Automotive Electronics: Suitable for vehicle power supplies and battery management systems.
4. Distributed Power Architectures: Employed in DC-DC converters for distributed power systems.
5. High-Performance Computing: Ensures stable power delivery to processors and memory modules.
These applications leverage the device's ability to efficiently step down high-input voltages to lower output levels while maintaining high efficiency and reliability.