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LTC3859ALHFE#TRPBF
+物料清單IC REG CTRLR MULT TOP 38TSSOP
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製造商ADI公司
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製造商部分 #LTC3859ALHFE#TRPBF
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有存貨8358
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規格
| 屬性 | 價值 |
| Part Status | Active |
| Output Type | Transistor Driver |
| Function | Step-Down, Step-Up/Step-Down |
| Output Configuration | Positive |
| Topology | Buck, Buck-Boost, SEPIC |
| Number of Outputs | 3 |
| Output Phases | 2 |
| Voltage - Supply (Vcc/Vdd) | 4.5V ~ 38V |
| Frequency - Switching | 115kHz ~ 835kHz, 350kHz ~ 535kHz |
| Duty Cycle (Max) | 99%, 100% |
| Synchronous Rectifier | Yes |
| Clock Sync | No |
| Control Features | Enable, Frequency Control, Power Good, Soft Start, Tracking |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | 38-TFSOP (0.173", 4.40mm Width) Exposed Pad |
| Supplier Device Package | 38-TSSOP-EP |
| Base Product Number | LTC3859 |
概述
Description
The LTC3859ALHFE#TRPBF is a high-performance, dual synchronous step-down DC/DC controller designed for a wide range of applications, including telecommunications, industrial, and automotive systems. It features a precise voltage regulation capability, enabling it to maintain output voltages as low as 0.8V with a reference accuracy of ±1%. The device supports a wide input voltage range of 4.5V to 60V, making it suitable for various power sources.
Key functionalities include adaptive voltage positioning, programmable output voltage, and frequency synchronization, which enhance efficiency and performance. The LTC3859 also incorporates features like overvoltage protection, short-circuit protection, and thermal shutdown to protect against fault conditions.
Its compact size (available in a 28-lead TSSOP package) facilitates integration into space-constrained designs. This device is particularly useful for applications requiring robust power management with high efficiency and reliability. Overall, the LTC3859ALHFE#TRPBF is an ideal solution for creating efficient power supplies in demanding environments.
Key functionalities include adaptive voltage positioning, programmable output voltage, and frequency synchronization, which enhance efficiency and performance. The LTC3859 also incorporates features like overvoltage protection, short-circuit protection, and thermal shutdown to protect against fault conditions.
Its compact size (available in a 28-lead TSSOP package) facilitates integration into space-constrained designs. This device is particularly useful for applications requiring robust power management with high efficiency and reliability. Overall, the LTC3859ALHFE#TRPBF is an ideal solution for creating efficient power supplies in demanding environments.
Equivalent
The LTC3859ALHFE#TRPBF is a high-performance buck controller. Equivalent products include the Texas Instruments TPS40210, ON Semiconductor NCP81174, and the Microchip MCP19111. Ensure compatibility in specifications such as voltage range, current output, and control features when considering alternatives. Always consult the manufacturer's datasheets for precise comparisons.
Features
The LTC3859ALHFE#TRPBF is a dual-output synchronous step-down regulator controller designed for high-performance applications. Key features include:
1. Voltage Range: Input voltage range from 4.5V to 60V, accommodating various power supply sources.
2. Output Voltage: Adjustable output voltage down to 0.8V, allowing flexibility for different loads.
3. Dual Outputs: Capable of driving two synchronous step-down converters, ideal for multirail systems.
4. High Efficiency: Optimized for high-efficiency operation, reducing thermal management requirements.
5. Current Sharing: Supports current sharing between the two outputs for balanced load distribution.
6. Programmable Frequency: Adjustable switching frequency up to 1MHz, enabling fine-tuning for performance and size.
7. Soft-start and Tracking: Features soft-start and output voltage tracking for smooth power-up sequences.
8. Protection Features: Includes over-voltage, under-voltage lockout, and thermal shutdown protections.
These features make the LTC3859ALHFE#TRPBF suitable for various applications, including industrial, automotive, and telecommunications.
1. Voltage Range: Input voltage range from 4.5V to 60V, accommodating various power supply sources.
2. Output Voltage: Adjustable output voltage down to 0.8V, allowing flexibility for different loads.
3. Dual Outputs: Capable of driving two synchronous step-down converters, ideal for multirail systems.
4. High Efficiency: Optimized for high-efficiency operation, reducing thermal management requirements.
5. Current Sharing: Supports current sharing between the two outputs for balanced load distribution.
6. Programmable Frequency: Adjustable switching frequency up to 1MHz, enabling fine-tuning for performance and size.
7. Soft-start and Tracking: Features soft-start and output voltage tracking for smooth power-up sequences.
8. Protection Features: Includes over-voltage, under-voltage lockout, and thermal shutdown protections.
These features make the LTC3859ALHFE#TRPBF suitable for various applications, including industrial, automotive, and telecommunications.
Pinout
The LTC3859ALHFE#TRPBF is a dual-output synchronous step-down controller from Analog Devices. It features a 32-pin LQFP (Low-Profile Quad Flat Package) form factor.
The pin functions include:
1. Power Control Pins: VCC, VREF.
2. Switching Control: SW (switching nodes), GND (ground).
3. Feedback Inputs: FB (feedback voltage inputs).
4. Compensation Pins: COMP.
5. Input Voltage/Current Sense: VIN, ILIM.
6. Timing/Synchronization: RT, SYNC.
7. Enable/Disable: RUN, PG (power good).
8. Fault Management: UVLO (under-voltage lockout), OTP (over-temperature protection).
9. Phase Control: PHASE.
10. Output Voltage Adjustment: SENSE.
The LTC3859A is designed for high-performance applications that require precise voltage regulation and efficient power management across multiple outputs.
The pin functions include:
1. Power Control Pins: VCC, VREF.
2. Switching Control: SW (switching nodes), GND (ground).
3. Feedback Inputs: FB (feedback voltage inputs).
4. Compensation Pins: COMP.
5. Input Voltage/Current Sense: VIN, ILIM.
6. Timing/Synchronization: RT, SYNC.
7. Enable/Disable: RUN, PG (power good).
8. Fault Management: UVLO (under-voltage lockout), OTP (over-temperature protection).
9. Phase Control: PHASE.
10. Output Voltage Adjustment: SENSE.
The LTC3859A is designed for high-performance applications that require precise voltage regulation and efficient power management across multiple outputs.
Manufacturer
The LTC3859ALHFE#TRPBF is manufactured by Analog Devices, Inc. (ADI). Analog Devices is a prominent American multinational company that specializes in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits (ICs). Founded in 1965, the company is headquartered in Norwood, Massachusetts.
Analog Devices serves a wide range of industries, including automotive, communications, healthcare, industrial automation, and consumer electronics. They are particularly known for their high-performance analog and mixed-signal devices, which play critical roles in various applications such as power management, signal processing, and data conversion.
The LTC3859ALHFE#TRPBF specifically is a high-performance, dual-output synchronous step-down DC-DC controller, often used in power management solutions. ADI's expertise in precision and efficiency makes their products suitable for demanding applications requiring reliable performance.
Analog Devices serves a wide range of industries, including automotive, communications, healthcare, industrial automation, and consumer electronics. They are particularly known for their high-performance analog and mixed-signal devices, which play critical roles in various applications such as power management, signal processing, and data conversion.
The LTC3859ALHFE#TRPBF specifically is a high-performance, dual-output synchronous step-down DC-DC controller, often used in power management solutions. ADI's expertise in precision and efficiency makes their products suitable for demanding applications requiring reliable performance.
Application
The LTC3859ALHFE#TRPBF is a dual-output synchronous step-down DC/DC controller designed for high-performance power management. It is commonly used in applications such as:
1. Telecommunications: Powering network devices and base stations.
2. Data Centers: Efficient voltage regulation for servers and storage systems.
3. Industrial Equipment: Supplying power to automation and control systems.
4. Consumer Electronics: Powering high-performance devices and gadgets.
5. Automotive Systems: Regulating power in advanced driver-assistance systems (ADAS).
Its ability to handle high current outputs and provide precise voltage control makes it suitable for diverse applications requiring efficient power conversion.
1. Telecommunications: Powering network devices and base stations.
2. Data Centers: Efficient voltage regulation for servers and storage systems.
3. Industrial Equipment: Supplying power to automation and control systems.
4. Consumer Electronics: Powering high-performance devices and gadgets.
5. Automotive Systems: Regulating power in advanced driver-assistance systems (ADAS).
Its ability to handle high current outputs and provide precise voltage control makes it suitable for diverse applications requiring efficient power conversion.
Package
The LTC3859ALHFE#TRPBF is packaged in a 28-lead HTSSOP (Thin Shrink Small Outline Package) with a thermal pad for enhanced heat dissipation. This package type is designed for efficient performance in power management applications.
