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LTC3891MPFE#TRPBF
+БОМIC REG CTRLR BUCK 20TSSOP
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ПроизводительКомпания Analog Devices Inc.
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Мфр. Часть #LTC3891MPFE#TRPBF
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Лист данных LTC3891MPFE#TRPBF DataSheet
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В наличии2787
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Спецификации
| Атрибут | Ценность |
| 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) | 4V ~ 60V |
| Frequency - Switching | 105kHz ~ 835kHz, 350kHz ~ 535kHz |
| Duty Cycle (Max) | 99% |
| Synchronous Rectifier | Yes |
| Clock Sync | No |
| Control Features | Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) Exposed Pad |
| Supplier Device Package | 20-TSSOP-EP |
| Base Product Number | LTC3891 |
Обзор
Description
Key features include adjustable output voltage from 0.8V to 15V, a built-in synchronous rectifier for improved efficiency, and support for parallel operation to increase output current. The LTC3891 also includes advanced functions such as soft-start, current limiting, and power good indication, enhancing its reliability in demanding environments.
The MPFE package offers a compact footprint, ideal for space-constrained designs. Overall, the LTC3891MPFE#TRPBF is designed for applications requiring precision voltage regulation with robust performance and flexibility.
Equivalent
Features
1. Wide Input Voltage Range: Operates from 4.5V to 60V, suitable for various applications.
2. High Efficiency: Achieves efficiencies over 95% in many configurations, reducing heat generation.
3. Current Mode Control: Provides fast transient response and improved stability.
4. Programmable Switching Frequency: Adjustable from 250kHz to 1MHz, allowing optimization for size and efficiency.
5. Integrated Drivers: Features high-side and low-side gate drivers for N-channel MOSFETs.
6. Power Good Indicator: Monitors the output voltage to ensure proper operation.
7. Temperature Protection: Includes thermal shutdown features to prevent overheating.
8. Clamp and Soft-Start Functions: Protects against inrush current and limits output voltage during startup.
9. Flexible Output Voltage: Configurable output voltage down to 0.8V.
This controller is ideal for telecom, automotive, and industrial applications requiring robust, efficient power management.
Pinout
- Adjustable output voltage and current limit
- Synchronous operation for improved efficiency
- Integrated drivers for N-channel MOSFETs
- Phase interleaving capability for multi-phase operation
- Frequency synchronization and adjustable switching frequency
- Soft-start and tracking capabilities
The LTC3891 offers a robust solution for applications requiring precise voltage regulation and power efficiency.
Manufacturer
Analog Devices serves various industries, including automotive, communications, healthcare, consumer electronics, and industrial automation. The LTC3891MPFE#TRPBF is a part of their power management product line, specifically a dual step-down (buck) switching regulator, designed for efficient power conversion in applications requiring high performance and flexible operation.
With a strong focus on innovation and technology, Analog Devices is committed to delivering advanced solutions that meet the evolving needs of its customers across different sectors.
Application
1. Industrial Power Supplies: Providing efficient power management in various industrial equipment.
2. Telecommunications: Supplying power for network devices and communication systems.
3. Computing: Serving as a voltage regulator in servers and data centers.
4. Automotive Systems: Powering electronic control units (ECUs) and infotainment systems.
5. Battery Management Systems: Supporting energy-efficient operation in rechargeable devices.
Its versatility and efficiency make it suitable for both power-sensitive and high-performance tasks across various sectors.