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LM5017MR
+BOMSwitching Voltage Regulators STEP-DOWN REGULATOR - 100V, 600MA CONSTANT ON-TIME SYNCHRONOUS BUCK REGULATOR
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ManufacturerTexas Instruments
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Mfr. Part #LM5017MR
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In Stock4022
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Specifications
| Attribute | Value |
Overview
Description
1. Wide Input Voltage Range: It supports input voltages from 7.5V to 100V, making it suitable for various industrial, automotive, and telecom applications.
2. Integrated High-Side MOSFET: This integration simplifies the design and reduces overall component count.
3. Adjustable Switching Frequency: The device allows the switching frequency to be set between 50 kHz and 1 MHz, providing flexibility in design optimization for efficiency or size.
4. Current-Mode Control: Ensures fast transient response and loop stability.
5. Protection Features: Includes under-voltage lockout, current limiting, and thermal shutdown to protect against fault conditions.
6. Small Footprint: The device is available in a compact, thermally-enhanced 8-pin SO PowerPAD package.
The LM5017MR is an efficient solution for applications needing reliable power conversion under a wide range of conditions.
Equivalent
Features
1. Wide Input Voltage Range: Supports 7.5V to 100V, making it suitable for a variety of applications.
2. Output Current: Can deliver up to 600 mA, ensuring sufficient power for many low-to-moderate power applications.
3. Switching Frequency: Operates at a fixed frequency of 600 kHz, optimizing the efficiency and size of the output components.
4. Integrated Power MOSFET: Features a 0.4Ω N-channel MOSFET, which simplifies the design and reduces the number of required external components.
5. Thermal Shutdown: Protects the device from overheating by disabling the switching when excessive temperatures are detected.
6. Cycle-by-Cycle Current Limiting: Provides protection against overcurrent conditions.
7. Internal Soft Start: Minimizes inrush currents during startup.
8. No External Compensation Required: Simplifies the design and minimizes component count.
9. Low Standby Current: Reduces power consumption during idle states.
10. Package: Available in a thermally enhanced 8-pin VSSOP package.
These features make the LM5017MR suitable for industrial, automotive, and distributed power systems.
Pinout
1. SW (Pin 1): Switch node, connected to the inductor.
2. BST (Pin 2): Boost voltage for the high-side gate driver.
3. RCL (Pin 3): Current limit set pin.
4. RT (Pin 4): Timing resistor to set switching frequency.
5. FB (Pin 5): Feedback input for output voltage regulation.
6. VCC (Pin 6): Output from the internal high-voltage series pass regulator.
7. GND (Pin 7): Ground.
8. VIN (Pin 8): Input supply voltage.
This configuration allows the LM5017MR to efficiently convert high voltage to lower, regulated output voltage with current limiting, frequency control, and thermal management features, making it suitable for a variety of high-voltage applications.