画像は参考用です
MAX1644EAE
+BOMIC REG BUCK ADJ 2A 16SSOP
-
メーカーアナログ・デバイセズ社/マキシム・インテグレーテッド
-
メーカー品番 #MAX1644EAE
-
在庫状況5745
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| PartStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable (Programmable) |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 3V |
| Voltage-Input(Max) | 5.5V |
| Voltage-Output(Min/Fixed) | 1.1V (2.525V, 3.33V) |
| Voltage-Output(Max) | 5.5V |
| Current-Output | 2A |
| Frequency-Switching | Up to 350kHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 16-SSOP (0.209", 5.30mm Width) |
| SupplierDevicePackage | 16-SSOP |
| BaseProductNumber | MAX1644 |
概要
Description
Key features of the MAX1644EAE include a wide input voltage range (4.5V to 28V), which allows it to be used in various power systems. It provides up to 4A of output current, making it suitable for moderate power applications. The converter operates at a high switching frequency (up to 1MHz), enabling the use of smaller external components and reducing overall solution size.
Additionally, the MAX1644EAE features internal MOSFETs, which contribute to its high efficiency, and has built-in protection features, including overvoltage and overcurrent protection, enhancing reliability and safety. It is typically packaged in a thermally efficient 16-pin QSOP package, facilitating easy integration into compact designs.
Equivalent
1. TPS62110 from Texas Instruments
2. LM2676 from Texas Instruments
3. LT1765 from Analog Devices
4. MIC4680 from Microchip Technology
When choosing an equivalent, verify that the input voltage range, output current, switching frequency, and package type match your requirements. Always review the datasheet for compatibility with your specific application.
Features
The converter achieves high efficiency through its synchronous rectification design, which reduces power loss, and it offers pulse-skipping operation to enhance efficiency at light loads. The MAX1644EAE also features a fixed-frequency PWM operation, ensuring low-noise performance, which is crucial for noise-sensitive applications.
Additional features include an adjustable output voltage, internal soft-start, and overcurrent protection to safeguard against overload conditions. The device also includes a power-good indicator, enabling users to monitor the output status easily. Its small footprint and high level of integration make it a suitable choice for space-constrained designs. Overall, the MAX1644EAE offers a combination of efficiency, flexibility, and protection features for various power management applications.
Pinout
Here's a brief overview of its pin functions:
1. IN - Supply Voltage Input.
2. OUT - Regulated Output Voltage.
3. PGND - Power Ground.
4. AGND - Analog Ground.
5. LX - Inductor Connection for the Switching Node.
6. V+ - Main Supply Voltage Input.
7. FB - Feedback Input for Output Voltage Sensing.
8. REF - Reference Voltage Output.
9. COMP - Compensation Pin for Stability.
10. SHDN - Shutdown Control Input.
11. FREQ - Frequency Control Input.
12. SYNC - Frequency Synchronization Input.
13. ILIM - Current Limit Set Input.
14. SS - Soft-Start Control.
15. PGOOD - Power Good Indicator Output.
16. PGND - Additional Power Ground.
This setup allows the MAX1644EAE to efficiently convert higher input voltages to lower output voltages, suitable for a wide range of electronics and power management systems.
Manufacturer
Application
1. Portable Devices: Ideal for use in mobile phones, PDAs, and other battery-powered electronics where space and energy efficiency are critical.
2. Notebook Computers: Provides power regulation for processors and peripherals, contributing to longer battery life.
3. Networking Equipment: Utilized in routers, switches, and other communication devices for stable power delivery.
4. Industrial Automation: Supports power management in control systems and sensors.
5. Consumer Electronics: Used in devices like digital cameras, gaming consoles, and other gadgets demanding efficient power conversion.
Overall, the MAX1644EAE is suitable for any application where efficient voltage regulation from higher to lower levels is needed.