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MAX1745EUB
+BOMIC REG CTRLR BUCK 10UMAX
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Nhà sản xuấtAnalog Devices Inc./Maxim tích hợp
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Ông. Phần #MAX1745EUB
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Bảng dữ liệu MAX1745EUB DataSheet
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| Supplier | Analog Devices Inc./Maxim Integrated |
| Package | Tube |
| ProductStatus | Active |
| OutputType | Transistor Driver |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| NumberofOutputs | 1 |
| OutputPhases | 1 |
| Voltage-Supply(Vcc/Vdd) | 4.5V ~ 36V |
| Frequency-Switching | Up to 330kHz |
| DutyCycle(Max) | 100% |
| SynchronousRectifier | No |
| ClockSync | No |
| ControlFeatures | Enable |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 10-TFSOP, 10-MSOP (0.118, 3.00mm Width) |
Tổng quan
Description
The MAX1745EUB is known for its high efficiency, often exceeding 90%, which helps in minimizing heat generation and extending battery life. It uses a pulse-width modulation (PWM) control scheme to maintain output voltage regulation under varying load conditions. The converter also includes protections like over-current limiting and thermal shutdown to safeguard against fault conditions.
Packaged in a compact TSSOP footprint, the MAX1745EUB is ideal for space-constrained applications. Its low quiescent current and the ability to enter a low-power shutdown mode further enhance its suitability for power-sensitive designs. Overall, the MAX1745EUB provides a reliable and versatile solution for efficient power conversion in modern electronic systems.
Equivalent
1. Texas Instruments TPS5430
2. Microchip MCP16301
3. ON Semiconductor NCP3170
4. Linear Technology (now Analog Devices) LT1765
5. Richtek RT8250
These are also step-down converters with similar voltage and current ratings, suitable for similar applications. Always verify the specifications and pin compatibility before substituting in a design.
Features
1. Input Voltage Range: It supports a wide input voltage range, making it suitable for various applications.
2. Charging Current: Programmable charging current allows customized and efficient charging processes.
3. Safety Features: It incorporates safety measures such as thermal regulation and overvoltage protection to ensure safe and reliable operation.
4. Status Indicators: Built-in LED drivers provide clear status indication for charging and fault conditions.
5. Compact Package: Available in a small, 10-pin µMAX package, the MAX1745EUB is ideal for space-constrained applications.
6. Temperature Regulation: The device is equipped with thermal regulation to prevent overheating during charging.
7. Charge Termination: It features automatic charge termination to prevent battery overcharge.
These features make the MAX1745EUB suitable for portable devices and applications requiring efficient and safe battery charging solutions.
Pinout
1. LX: Inductor connection for the internal switch.
2. GND: Ground connection.
3. FB: Feedback input for output voltage regulation.
4. OUT: Output voltage sense input.
5. IN: Supply voltage input.
6. SHDN: Shutdown control input (active low).
7. COMP: Compensation node for stability control.
8. SS: Soft-start control input to prevent inrush current.
9. PGOOD: Power-good indicator output.
10. REF: Reference voltage output.
The MAX1745EUB is commonly used for generating a regulated output voltage from a higher input voltage, often in applications like portable devices or other electronics requiring efficient power management.