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LM25145RGYT
LM25145RGYT is a synchronous buck DC-DC controller with a wide duty cycle range, suitable for input voltages ranging from 6V to 42V
LM25145RGYT
LM25145RGYT is a synchronous buck DC-DC controller with a wide duty cycle range, suitable for input voltages ranging from 6V to 42V
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Manufacturer Part # : LM25145RGYT
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Package/Case: VQFN20
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Part Status : ACTIVE
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Brand: Texas Instruments
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Product Categories : DC DC Switching Controllers
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LM25145RGYT DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
With a switching frequency of up to 1MHz, the LM25145RGYT excels in providing efficient and stable power conversion with high voltage input sources. By working in tandem with external power MOSFETs, it can handle high power levels effectively while maintaining a high level of efficiency in a wide range of power supply designs. Whether you're designing a power supply for an industrial machine or automotive system, this controller IC offers the performance and reliability you need
Key Features
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Vin (min) (V) | 6 | Vin (max) (V) | 42 |
| Vout (min) (V) | 0.8 | Vout (max) (V) | 40 |
| Iout (max) (A) | 30 | Iq (typ) (mA) | 1.8 |
| Switching frequency (min) (kHz) | 100 | Switching frequency (max) (kHz) | 1000 |
| Features | Adjustable current limit, Enable, Frequency synchronization, Light Load Efficiency, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, UVLO adjustable | Operating temperature range (°C) | -40 to 125 |
| Regulated outputs (#) | 1 | Number of phases | 1 |
| Rating | Catalog | Control mode | Voltage mode |
| Type | Controller |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is LM25145RGYT?
The LM25145RGYT is a synchronous buck controller integrated circuit (IC) designed by Texas Instruments. It is ideal for use in high-efficiency, high-density DC-DC converter applications, such as telecom and networking equipment, industrial power supplies, and automotive power systems.
How Does LM25145RGYT Work?
The LM25145RGYT operates as a synchronous buck controller, regulating the output voltage from a higher input voltage. It uses pulse-width modulation (PWM) to control the switching of the power MOSFETs, allowing for efficient power conversion. The controller features a wide input voltage range and adjustable switching frequency, providing flexibility in various power supply designs.
How Many Pins does LM25145RGYT have and What are the Functions of the Pinout Configuration?
The LM25145RGYT is housed in a 24-pin VQFN (Very Thin Quad Flatpack No-Lead) package. The pinout configuration includes:
- VIN: Input voltage supply pin.
- PGND: Power ground pin.
- BOOT: Bootstrap capacitor pin for high-side MOSFET driver.
- PH, PL: High-side and low-side MOSFET driver outputs.
- COMP, FB: Compensation and feedback input pins for loop regulation.
- SS/CLKOUT, SYNC: Soft-start/clock output and synchronization control pins.
- PGOOD, SS/TRK, SS/MODE, SS/EN, SS/UVLO: Power good, tracking, mode select, enable, and undervoltage lockout control pins.
- VOUT: Regulated output voltage pin.
What are the Pros and Cons of LM25145RGYT?
Pros:
- High Efficiency: Enables high-efficiency power conversion for energy-sensitive applications.
- Wide Input Voltage Range: Allows for operation over a broad range of input voltages.
- Flexible Control Features: Provides various control and protection features for versatile power supply designs.
- Compact Package: The VQFN package offers a space-efficient solution for compact designs.
- Robust Performance: Designed to meet industrial and automotive reliability standards.
Cons:
- External Components: May require external components such as inductors, capacitors, and diodes for a complete DC-DC converter circuit.
- Design Complexity: Synchronous buck converters require careful attention to layout and component selection for optimal performance.
- Heat Dissipation: High-efficiency designs may require attention to thermal management for effective heat dissipation.
Are There Any Equivalents/Alternatives to LM25145RGYT for Recommendation?
- The LM5117 from Texas Instruments is a similar synchronous buck controller with different feature sets.
- Alternatives to the LM25145RGYT include the TPS53319 from Texas Instruments and the ISL85415 from Renesas Electronics.
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