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LTC3891MPFE#TRPBF
+BOMIC REG CTRLR BUCK 20TSSOP
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メーカー品番 #LTC3891MPFE#TRPBF
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データシート LTC3891MPFE#TRPBF DataSheet
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在庫状況2787
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| 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 |
概要
Description
The LTC3891MPFE#TRPBF is a high-performance, dual-output synchronous step-down (buck) regulator from Analog Devices. It features a wide input voltage range of 4.5V to 60V, making it suitable for various applications including automotive, industrial, and telecommunications. The device can deliver up to 15A of output current with high efficiency, minimizing power loss.
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.
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
Equivalent products to the LTC3891MPFE#TRPBF chip include the TPS40210 from Texas Instruments, the LM5118 from Texas Instruments, and the MAX15031 from Maxim Integrated. These alternatives offer similar functionalities for power management applications, including synchronous step-down voltage regulation. Always verify specifications for compatibility with your specific design requirements.
Features
The LTC3891MPFE#TRPBF is a high-performance synchronous step-down voltage regulator controller designed for high-efficiency power conversion. Key features include:
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.
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
The LTC3891MPFE#TRPBF is a dual-output synchronous step-down DC-DC controller with a pin count of 32. Its primary functions include controlling the output voltage and current for power management applications, enabling high efficiency in power conversion. Key features include:
- 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.
- 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
The manufacturer of the LTC3891MPFE#TRPBF is Analog Devices, Inc. (ADI). Founded in 1965, Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The company specializes in designing and manufacturing a wide range of semiconductor solutions, including amplifiers, converters, voltage regulators, and power management ICs.
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.
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
The LTC3891MPFE#TRPBF is a high-performance DC-DC controller primarily used in applications requiring step-down (buck) power conversion. Its key application areas include:
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.
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.
Package
The LTC3891MPFE#TRPBF is packaged in a 40-lead LQFP (Low-Profile Quad Flat Package) with a heat sink pad for improved thermal performance.
