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LM5148RGYR
3.5-V TO 80-V, CURRENT MODE SYNC
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- Fr. Teil #LM5148RGYR
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- Datenblatt LM5148RGYR DataSheet
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Spezifikationen
| Part Status | Active |
| Output Type | Transistor Driver |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Number of Outputs | 1 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 3.5V ~ 80V |
| Frequency - Switching | 100kHz ~ 2.2MHz |
| Duty Cycle (Max) | 100% |
| Synchronous Rectifier | Yes |
| Clock Sync | Yes |
| Control Features | Current Limit, Dead Time Control, Enable, Frequency Control, Phase Control, Power Good, Ramp, Soft Start |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | 24-VFQFN Exposed Pad |
| Supplier Device Package | 24-VQFN (3.5x5.5) |
Übersicht
Description
Key features include peak current mode control for fast transient response, integrated drivers for high-side and low-side MOSFETs, and programmable soft-start to prevent inrush current. The LM5148 also includes protection features like overcurrent protection, thermal shutdown, and undervoltage lockout.
With its ability to support high switching frequencies, the LM5148 enables the use of smaller passive components, making it ideal for compact designs. Additionally, the device's efficiency and thermal performance help in extending the longevity and reliability of the system.
Overall, the LM5148RGYR is a versatile and robust solution for designers looking to implement efficient DC-DC power conversion in their applications.
Features
1. Wide Input Voltage Range: Operates from 4.5V to 60V, making it suitable for various power supply applications.
2. Dual-Channel Output: Supports dual-phase operation, enabling higher output current capabilities while improving efficiency.
3. Adaptive On-Time Control: Provides excellent transient response and reduces the output capacitance requirement.
4. Programmable Switching Frequency: Adjustable frequency range from 200 kHz to 1.5 MHz allows optimization for efficiency and size.
5. Integrated Bootstrap Switch: Simplifies the design while enhancing efficiency in high-side MOSFET driving.
6. Protection Features: Includes overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown.
7. Power Good Indicator: Provides feedback on output voltage status for system monitoring.
8. High Efficiency: Achieves efficiency levels up to 95% or higher under typical load conditions.
Overall, the LM5148RGYR is designed for high efficiency, flexibility, and reliability in power regulation applications.
Package
Pinout
Pin Count: 32 pins
Key Functions:
- Input Voltage: Supports a wide input voltage range.
- Output Voltage Control: Adjustable output voltage via feedback resistors.
- PWM Control: Supports both voltage mode and current mode control.
- Compensation: External compensation for stability.
- Power Good Indicator: Monitors the output voltage status.
- Soft Start: Controls the ramp-up of output voltage to prevent inrush current.
- Frequency Adjustment: Allows for synchronization to an external clock.
- Enable/Disable Functionality: For power management and system control.
This device is widely used in applications such as telecom, industrial, and datacenter power supplies, where efficiency and performance are critical.
Manufacturer
Application
Equivalent
Versand
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Versandgebührenreferenz (DHL/FedEx):
DHL: Versandkosten reichen von $25-$45 (0.5kg), mit einer geschätzten Lieferzeit von 2-5 Werktagen.
von FedEx: Versandkosten reichen von $25-$40 (0.5kg), mit einer geschätzten Lieferzeit von 3-7 Werktagen.
UPS: Versandkosten reichen von $25-$45 (0.5kg), mit einer geschätzten Lieferzeit von 3-7 Werktagen.
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Registrierte Luftpost: Versandkosten sind $ 2- $ 4 (0,1 kg), mit einer geschätzten Lieferzeit von 5-20 Werktagen.
Zahlungen
Payment Methods
Die Zahlungsfrist ist 100% Prepaid.
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