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LTC3859AEFE#TRPBF
+NomenclatureIC REG CTRLR MULT TOP 38TSSOP
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FabricantAnalog Equipment GmbH.
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Pièce fabricant #LTC3859AEFE#TRPBF
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Fiche technique LTC3859AEFE#TRPBF DataSheet
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Spécifications
| Attribut | Valeur |
| 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 ~ 125°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 |
Présentation
Description
Key features include programmable switching frequency, low quiescent current, and the ability to operate in both continuous and discontinuous conduction modes. It also supports features like voltage tracking, soft-start, and fault protection, enhancing reliability and flexibility in design.
The device's compact package (EFG) allows for easy integration into space-constrained designs while providing robust performance. Overall, the LTC3859AEFE#TRPBF is ideal for power management solutions in telecommunications, automotive, and computing industries, enabling designers to create efficient and reliable power supplies.
Equivalent
Features
1. Dual Output Capability: Supports two independent outputs for versatile power management.
2. High Efficiency: Up to 95% efficiency, enabling reduced heat generation and improved thermal performance.
3. Wide Input Voltage Range: Operates from 4.5V to 60V, making it suitable for various input sources.
4. Adjustable Output Voltage: Provides flexibility with output voltages adjustable from 0.8V to 60V.
5. Current Mode Control: Ensures excellent transient response and maintains stability over a wide range of conditions.
6. Programmable Switching Frequency: Frequency can be set between 200 kHz and 1.5 MHz, allowing optimization for size and efficiency.
7. Integrated Driver: Features built-in high-side and low-side MOSFET drivers for ease of design.
8. Soft-Start and Tracking: Provides smooth startup and output voltage tracking for multiple supplies.
These features make the LTC3859AEFE#TRPBF ideal for powering processors, FPGAs, and other demanding loads.
Pinout
Key functions of the pins include:
- VIN: Input voltage supply.
- SW: Switching node for the power stages.
- GND: Ground connection.
- VOUT1/VOUT2: Output voltage sensing for each channel.
- COMP: Compensation network connection for stability.
- ISEN: Current sense input for current regulation.
- PGND: Power ground for high current paths.
- SS: Soft start pin to control start-up time.
- SYNC: Synchronization for multiple controllers.
- FREQ: Frequency setting for operation.
- MODE: Operation mode selection (pulse skip or continuous).
- RAMP: Ramp capacitor connection for PWM control.
- ILIM: Current limit setting.
The LTC3859 is designed for high efficiency and flexibility in power management applications, suitable for powering processors and DSPs.
Manufacturer
The company primarily serves various industries, including automotive, industrial, communications, and consumer electronics, by providing solutions for data conversion, signal processing, power management, and embedded systems. The LTC3859A is a synchronous step-down DC/DC controller known for its efficiency and performance in power management applications, making it suitable for high-performance electronics. Analog Devices is recognized for its innovation in the semiconductor industry and its commitment to quality and reliability in its products.
Application
1. DC-DC Converters: Efficient power supply for processors and FPGAs.
2. Telecommunications: Powering communication equipment and networking devices.
3. Industrial Equipment: Providing reliable power in automation and control systems.
4. Data Centers: Optimizing power delivery for servers and storage systems.
5. Consumer Electronics: Power management in laptops, tablets, and smartphones.
6. Electric Vehicles: Powering auxiliary systems and battery management.
Its features enable high efficiency and precise voltage regulation across these applications.