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L5973ADTR
+BOMIC REG BUCK ADJUSTABLE 2A 8HSOP
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ManufacturerSTMicroelectronics
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Mfr. Part #L5973ADTR
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Datasheet L5973ADTR DataSheet
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Package HSOP-8
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In Stock5062
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Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4V |
| Voltage-Input(Max) | 36V |
| Voltage-Output(Min/Fixed) | 1.235V |
| Voltage-Output(Max) | 35V |
| Current-Output | 2A |
| Frequency-Switching | 500kHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 150°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) Exposed Pad |
Overview
Description
Equivalent
1. LM2675 by Texas Instruments
2. MC34063 by ON Semiconductor
3. AP1501 by Diodes Incorporated
4. MP1584 by MPS (Monolithic Power Systems)
5. LM2596 by Texas Instruments
These alternatives typically offer similar functionalities and performance characteristics for standard applications but always check datasheets for compatibility in your specific circuit.
Features
1. Input Voltage Range: It can handle a wide input voltage range from 4.4V to 36V, making it versatile for various applications.
2. Output Current: It supports an output current of up to 1.5A, suitable for powering medium-power devices.
3. Efficiency: The device is designed for high efficiency, typically around 90%, which helps in reducing power loss and heat generation.
4. Switching Frequency: The regulator operates at a fixed switching frequency of 250 kHz, balancing efficiency and component size.
5. Output Voltage: The output voltage is adjustable via external resistors, allowing flexibility in different applications.
6. Protection Features: It includes built-in protection mechanisms like overcurrent protection, thermal shutdown, and undervoltage lockout, enhancing reliability.
7. Package: The L5973ADTR is available in a compact SO-8 package, facilitating integration into space-constrained designs.
8. Applications: It is commonly used in consumer electronics, industrial systems, and automotive applications due to its robust performance and flexibility.
Pinout
1. VCC: Supply voltage input.
2. GND: Ground reference.
3. OUT: Switch output, connected to the inductor.
4. FB (Feedback): Connects to the output voltage divider for feedback to maintain regulation.
5. COMP: Compensation network connection to stabilize the control loop.
6. INH (Inhibit): Used to enable or disable the device.
7. SYNC: Allows synchronization with an external clock.
8. BOOT: Bootstrap capacitor connection for the high-side driver.
9. P-DRIVE: Drives the gate of an external P-channel MOSFET.
The remaining pins may include additional ground connections or thermal pads, and some pins are typically not connected in the specific PowerSO-10 package version, focusing primarily on power conversion and efficiency. Always refer to the specific datasheet for detailed pin configuration and application specifics.
Manufacturer
Application
1. Consumer Electronics: Power supply for devices like set-top boxes, LCD monitors, and audio equipment.
2. Industrial Automation: Used in power management for control systems and industrial instruments.
3. Telecommunications: Provides regulated power in networking equipment and communication devices.
4. Computing: Utilized in motherboards and peripheral devices for stable power delivery.
5. Automotive: Supports in-vehicle systems by providing stable voltage for electronic modules.
These applications benefit from its high efficiency, compact design, and reliable performance in converting DC voltages.