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LM25145RGYR
LM25145RGYR
- Fabricant
- Mfr. Partie #LM25145RGYR
- Paquet VQFN (RGY)-20
- Fiche de données
- En stock5453
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Spécifications
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| OutputType | Transistor Driver |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| NumberofOutputs | 1 |
| OutputPhases | 1 |
| Voltage-Supply(Vcc/Vdd) | 6V ~ 42V |
| Frequency-Switching | 100kHz ~ 1MHz |
| SynchronousRectifier | Yes |
| ClockSync | Yes |
| ControlFeatures | Enable, Frequency Control, Ramp, Soft Start |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount, Wettable Flank |
| Package/Case | 20-VFQFN Exposed Pad |
Vue d'ensemble
Description
Key features of the LM25145RGYR include programmable switching frequency, current mode control for improved transient response and stability, and adaptive dead-time control to optimize efficiency. It also includes features like soft-start, adjustable current limit, and a power-good output to ensure reliable operation. With its low shutdown current and integrated MOSFET drivers, the LM25145RGYR is well-suited for applications that require high efficiency, such as telecommunications, industrial equipment, and data centers.
The device comes in a thermally enhanced package for effective heat dissipation and is designed to meet stringent industry standards for reliability and performance. Overall, the LM25145RGYR offers a robust solution for designing compact and efficient power supply systems.
Features
1. Wide Input Voltage Range: It supports a broad input voltage range, making it versatile for various applications.
2. High-Efficiency Operation: By using synchronous rectification, the device achieves high efficiency, which is crucial for reducing power loss and improving thermal performance.
3. Adjustable Switching Frequency: The controller allows for an adjustable switching frequency, enhancing flexibility in design and optimization for space and performance.
4. Current-Mode Control: It employs current-mode control for improved transient response and loop stability, crucial for maintaining output voltage accuracy during load changes.
5. Integrated MOSFET Drivers: The LM25145RGYR includes integrated high- and low-side MOSFET drivers, simplifying design and reducing external component count.
6. Protection Features: It incorporates various protection mechanisms, including overcurrent protection, thermal shutdown, and undervoltage lockout, ensuring reliable operation.
7. Power Good Indicator: The device features a power good signal to indicate when the output voltage is within the desired range.
8. Compact Package: Offered in a compact package, it is suitable for space-constrained applications.
These features make the LM25145RGYR ideal for use in industrial, automotive, and telecommunications power supply solutions.
Package
Pinout
Key functions of the LM25145 include:
1. Synchronous Buck Controller: Efficient conversion from higher DC input voltages to lower DC output voltages.
2. Wide Input Voltage Range: Suitable for various industrial and automotive applications.
3. Programmable Switching Frequency: Offers flexibility in design to optimize efficiency and performance.
4. Fault Protection: Incorporates features like overcurrent protection, thermal shutdown, and more to ensure reliability.
5. Precision Enable and UVLO: Provides controlled startup and shutdown sequences.
6. Integrated MOSFET Drivers: Reduces component count and simplifies design.
7. Adjustable Soft-Start: Allows control over the inrush current during startup.
These features make the LM25145 suitable for high-performance power management applications.
Manufacturer
Application
Equivalent
1. LTC3895 from Analog Devices
2. MAX17504 from Maxim Integrated (a part of Analog Devices)
3. TPS40090 from Texas Instruments
4. MP2940A from Monolithic Power Systems
These alternatives offer similar functionalities, but always check specific requirements such as voltage, current ratings, and features.
Expédition
Méthodes d'expéditionNous
offrir des services d'expédition mondiaux par DHL, FedEx, TNT, UPS ou tout autre expéditeur de votre choix.
Référence des frais d'expédition (DHL/FedEx):
DHL: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 2 à 5 jours ouvrables.
FedEx: Les frais d'expédition varient de 25 à 40 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.
UPS: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.
TNT: Les frais d'expédition varient de 25 à 65 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.
EMS: Les frais d'expédition varient de 30 à 50 $ (0,5 kg), avec un délai de livraison estimé de 7 à 15 jours ouvrables.
Courrier aérien enregistré: Le coût d'expédition est de 2 à 4 $ (0,1 kg), avec un délai de livraison estimé de 5 à 20 jours ouvrables.
Paiements
Payment Methods
Le terme de paiement est 100% prépayé.
Actuellement, nous n'acceptons que les méthodes de paiement ci-dessous:
1. PayPal
2. Carte de crédit/débit
3. Transfert bancaire
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