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MAX1831EEE
IC REG BUCK ADJ 3A 16QSOP
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規格
| Part Status | Obsolete |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable (Programmable) |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 3V |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | 1.1V (1.5V, 2.5V, 3.3V) |
| Voltage - Output (Max) | 5.5V |
| Current - Output | 3A |
| Frequency - Switching | 1MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 16-SSOP (0.154", 3.90mm Width) |
| Supplier Device Package | 16-QSOP |
| Base Product Number | MAX1831 |
概述
Description
The MAX1831EEE is a high-performance, battery management integrated circuit (IC) designed primarily for lithium-ion (Li-ion) and lithium-polymer (LiPo) batteries. It features a highly efficient switching regulator for charging applications, allowing for a seamless transition between different charging states. Key functionalities include over-voltage protection, under-voltage lockout, and thermal regulation, ensuring safe and reliable battery operation.
The device is optimized for low quiescent current, making it suitable for portable and battery-powered devices. It supports a wide input voltage range and has a programmable charge current, providing flexibility for various applications. The MAX1831EEE is particularly useful in smartphones, tablets, and other consumer electronics where battery efficiency and safety are critical.
Its compact footprint and integration of essential features make it a favorable choice for designers looking to enhance battery performance while minimizing board space and component count. Overall, the MAX1831EEE enhances energy efficiency and extends battery life in modern electronic devices.
The device is optimized for low quiescent current, making it suitable for portable and battery-powered devices. It supports a wide input voltage range and has a programmable charge current, providing flexibility for various applications. The MAX1831EEE is particularly useful in smartphones, tablets, and other consumer electronics where battery efficiency and safety are critical.
Its compact footprint and integration of essential features make it a favorable choice for designers looking to enhance battery performance while minimizing board space and component count. Overall, the MAX1831EEE enhances energy efficiency and extends battery life in modern electronic devices.
Features
The MAX1831EEE is a high-efficiency, step-up DC-DC converter designed for powering devices from a single-cell lithium-ion battery. Key features include:
1. Input Voltage Range: Operates from 2.0V to 4.2V.
2. Output Voltage: Adjustable output voltage up to 5.5V.
3. Efficiency: High efficiency (up to 95%) to maximize battery life.
4. Switching Frequency: Operates at a fixed frequency of 1MHz, allowing for smaller external components.
5. Integrated Switch: Features an internal power MOSFET to minimize component count.
6. Low Quiescent Current: Reduces power consumption during standby mode.
7. Current Limit Protection: Built-in protections against overcurrent and thermal overload.
8. Soft-Start Function: Prevents inrush current during startup.
9. Small Package: Available in a compact 8-pin μMAX package for space-constrained applications.
10. Application Versatility: Suitable for portable devices, LED drivers, and battery-operated gadgets.
Overall, the MAX1831EEE offers a blend of efficiency, compactness, and flexibility for powering modern electronic devices.
1. Input Voltage Range: Operates from 2.0V to 4.2V.
2. Output Voltage: Adjustable output voltage up to 5.5V.
3. Efficiency: High efficiency (up to 95%) to maximize battery life.
4. Switching Frequency: Operates at a fixed frequency of 1MHz, allowing for smaller external components.
5. Integrated Switch: Features an internal power MOSFET to minimize component count.
6. Low Quiescent Current: Reduces power consumption during standby mode.
7. Current Limit Protection: Built-in protections against overcurrent and thermal overload.
8. Soft-Start Function: Prevents inrush current during startup.
9. Small Package: Available in a compact 8-pin μMAX package for space-constrained applications.
10. Application Versatility: Suitable for portable devices, LED drivers, and battery-operated gadgets.
Overall, the MAX1831EEE offers a blend of efficiency, compactness, and flexibility for powering modern electronic devices.
Package
The MAX1831EEE is packaged in a 28-pin TSSOP (Thin Shrink Small Outline Package). This surface-mount package is designed for efficient thermal performance and space-saving applications in electronic designs.
Pinout
The MAX1831EEE is a high-efficiency, step-down (buck) DC-DC converter designed for battery-powered applications. It comes in a 16-pin TQFN package.
Pin Count: 16 pins
Pin Functions:
1. VIN: Input voltage supply.
2. GND: Ground reference.
3. SW: Switch node for the inductor.
4. VOUT: Output voltage for the load.
5. COMP: Compensation point for feedback loop stability.
6. FB: Feedback voltage input for regulation.
7. R1: Resistor connection for output voltage setting.
8. R2: Resistor connection for output voltage setting.
9. EN: Enable pin to turn the device on/off.
10. PGND: Power ground for the switching circuit.
11. BST: Bootstrap capacitor connection for gate drive.
12. TG: Top gate drive for the high-side switch.
13. BG: Bottom gate drive for the low-side switch.
14. ISNS: Current sense input for overcurrent protection.
15. TS: Temperature sense input for thermal protection.
16. N/C: No connect, can be left unconnected.
This device is suitable for applications requiring regulated output voltage from a higher input voltage, such as battery-powered devices.
Pin Count: 16 pins
Pin Functions:
1. VIN: Input voltage supply.
2. GND: Ground reference.
3. SW: Switch node for the inductor.
4. VOUT: Output voltage for the load.
5. COMP: Compensation point for feedback loop stability.
6. FB: Feedback voltage input for regulation.
7. R1: Resistor connection for output voltage setting.
8. R2: Resistor connection for output voltage setting.
9. EN: Enable pin to turn the device on/off.
10. PGND: Power ground for the switching circuit.
11. BST: Bootstrap capacitor connection for gate drive.
12. TG: Top gate drive for the high-side switch.
13. BG: Bottom gate drive for the low-side switch.
14. ISNS: Current sense input for overcurrent protection.
15. TS: Temperature sense input for thermal protection.
16. N/C: No connect, can be left unconnected.
This device is suitable for applications requiring regulated output voltage from a higher input voltage, such as battery-powered devices.
Manufacturer
The MAX1831EEE is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated is a semiconductor company that specializes in designing and manufacturing analog and mixed-signal integrated circuits (ICs). They provide a wide range of products used in various applications, including power management, signal processing, and communication systems. The company is known for its innovative solutions that enhance the performance and efficiency of electronic devices. Maxim Integrated's products are widely used in consumer electronics, automotive, industrial, and telecommunications sectors.
Application
The MAX1831EEE is a high-efficiency step-down (buck) voltage regulator primarily used in portable devices. Its application areas include battery-powered equipment, such as smartphones, tablets, and portable consumer electronics, where it provides efficient power management. Additionally, it is suitable for powering microcontrollers, sensors, and other low-voltage digital circuits in automotive and industrial applications.
Equivalent
The MAX1831EEE chip is a step-down DC-DC converter. Equivalent products include the LM2596 from Texas Instruments, the LT1083 from Analog Devices, and the TPS54331 also from Texas Instruments. Additionally, the MIC2940 from Microchip can serve similar functions in specific applications. Always check specifications for compatibility with your design requirements.
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