仕様
| 属性 | 値 |
| Package / Case | Tube |
| Part Status | Active |
| Function | Step-Up |
| Output Configuration | Positive |
| Topology | Boost |
| Output Type | Fixed |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 0.65V |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | 5V |
| Current - Output | 800mA |
| Frequency - Switching | 1MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
概要
Description
The MCP1642B-50I/MC is a high-efficiency, fixed output, synchronous step-up DC-DC converter from Microchip Technology. It is designed to boost low input voltages to higher output levels, specifically providing a 5.0V output. This device is suitable for battery-powered and portable applications where maintaining a stable output voltage is crucial, even when the input voltage falls below the desired output.
Key features of the MCP1642B-50I/MC include its low quiescent current, which helps extend battery life, and its ability to start up with input voltages as low as 0.65V. The device operates with high efficiency across a wide range of loads, thanks to its synchronous rectification design. Its compact design, typically housed in a small SOT-23 package, makes it ideal for space-constrained applications.
Additionally, the MCP1642B-50I/MC includes built-in protections like over-current, under-voltage lockout, and thermal shutdown, ensuring robust operation under various conditions. Its ease of use and reliable performance make it a popular choice for designers seeking efficient power management solutions.
Key features of the MCP1642B-50I/MC include its low quiescent current, which helps extend battery life, and its ability to start up with input voltages as low as 0.65V. The device operates with high efficiency across a wide range of loads, thanks to its synchronous rectification design. Its compact design, typically housed in a small SOT-23 package, makes it ideal for space-constrained applications.
Additionally, the MCP1642B-50I/MC includes built-in protections like over-current, under-voltage lockout, and thermal shutdown, ensuring robust operation under various conditions. Its ease of use and reliable performance make it a popular choice for designers seeking efficient power management solutions.
Equivalent
The MCP1642B-50I/MC is a step-up DC-DC converter. Equivalent products are those with similar specifications such as input voltage range, output voltage, and current capability. Some alternatives include:
1. TI TPS61021A
2. Analog Devices ADP1613
3. Maxim Integrated MAX17222
4. Richtek RT4812
When selecting an equivalent, ensure it meets your specific application requirements, including power efficiency, package size, and thermal performance. Always verify specifications and consult datasheets for compatibility.
1. TI TPS61021A
2. Analog Devices ADP1613
3. Maxim Integrated MAX17222
4. Richtek RT4812
When selecting an equivalent, ensure it meets your specific application requirements, including power efficiency, package size, and thermal performance. Always verify specifications and consult datasheets for compatibility.
Features
The MCP1642B-50I/MC is a high-efficiency, fixed-output boost converter. Key features include:
1. Fixed Output Voltage: Specifically outputs 5.0V, useful for applications requiring a stable voltage.
2. Input Voltage Range: Operates from a low input voltage range, typically starting from 0.35V, which is ideal for single-cell battery applications.
3. Efficiency: Offers high efficiency across a wide range of loads due to its synchronous rectification design.
4. Start-Up Voltage: Can start up with an input voltage as low as 0.65V, facilitating operation in low-voltage conditions.
5. Load Capacity: Supports a maximum output current of up to 100mA, depending on input voltage and efficiency.
6. Low Quiescent Current: Features a low quiescent current (typically 19µA), extending battery life in portable devices.
7. Shutdown Mode: Includes a shutdown mode to reduce power consumption when not in use.
8. Protection Features: Offers over-temperature and over-current protection to enhance reliability and safety.
9. Compact Package: Available in a small SOT-23-6 package, making it suitable for space-constrained applications.
These characteristics make the MCP1642B-50I/MC suitable for battery-powered and energy-efficient applications.
1. Fixed Output Voltage: Specifically outputs 5.0V, useful for applications requiring a stable voltage.
2. Input Voltage Range: Operates from a low input voltage range, typically starting from 0.35V, which is ideal for single-cell battery applications.
3. Efficiency: Offers high efficiency across a wide range of loads due to its synchronous rectification design.
4. Start-Up Voltage: Can start up with an input voltage as low as 0.65V, facilitating operation in low-voltage conditions.
5. Load Capacity: Supports a maximum output current of up to 100mA, depending on input voltage and efficiency.
6. Low Quiescent Current: Features a low quiescent current (typically 19µA), extending battery life in portable devices.
7. Shutdown Mode: Includes a shutdown mode to reduce power consumption when not in use.
8. Protection Features: Offers over-temperature and over-current protection to enhance reliability and safety.
9. Compact Package: Available in a small SOT-23-6 package, making it suitable for space-constrained applications.
These characteristics make the MCP1642B-50I/MC suitable for battery-powered and energy-efficient applications.
Pinout
The MCP1642B-50I/MC is a high-efficiency, fixed frequency, synchronous step-up DC-DC converter. It is available in a small SOT-23-6 package, which implies it has 6 pins. The main pins and their functions are as follows:
1. VOUT (Pin 1): Output voltage pin. Delivers the boosted output voltage.
2. GND (Pin 2): Ground pin. Connects to the system ground.
3. EN (Pin 3): Enable pin. Activates the device when pulled high and places it in shutdown mode when low.
4. VIN (Pin 4): Input voltage pin. Supplies the input voltage to the device.
5. SW (Pin 5): Switch pin. Connects to the inductor and is used internally by the device to switch the current.
6. VFB (Pin 6): Feedback voltage pin. Connected to an internal resistor divider network for fixed output voltage options.
The MCP1642B-50I/MC is designed for applications requiring a regulated 5.0V output from lower voltage sources.
1. VOUT (Pin 1): Output voltage pin. Delivers the boosted output voltage.
2. GND (Pin 2): Ground pin. Connects to the system ground.
3. EN (Pin 3): Enable pin. Activates the device when pulled high and places it in shutdown mode when low.
4. VIN (Pin 4): Input voltage pin. Supplies the input voltage to the device.
5. SW (Pin 5): Switch pin. Connects to the inductor and is used internally by the device to switch the current.
6. VFB (Pin 6): Feedback voltage pin. Connected to an internal resistor divider network for fixed output voltage options.
The MCP1642B-50I/MC is designed for applications requiring a regulated 5.0V output from lower voltage sources.
Manufacturer
The MCP1642B-50I/MC is manufactured by Microchip Technology Inc. Microchip is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions. The company offers a comprehensive portfolio of products that cater to a wide range of applications across various industries, including automotive, industrial, consumer electronics, and telecommunications. Microchip is known for its focus on delivering products with high performance, reliability, and ease of use, along with strong customer support and technical resources.
Application
The MCP1642B-50I/MC is a high-efficiency synchronous boost converter designed for low-voltage applications. Key application areas include:
1. Battery-Powered Devices: Ideal for extending battery life in portable electronics such as wearable devices, medical instruments, and remote sensors.
2. Consumer Electronics: Used in gadgets where compact size and energy efficiency are crucial, like digital cameras, MP3 players, and handheld gaming devices.
3. Internet of Things (IoT): Powers IoT devices requiring a stable voltage from single-cell or low-voltage sources.
4. Energy Harvesting: Suitable for applications like solar-powered devices where energy needs to be efficiently converted and stored.
5. LED Lighting: Used in driving LED circuits in flashlights and other lighting solutions requiring boost conversion.
These applications benefit from its compact design, low quiescent current, and high efficiency.
1. Battery-Powered Devices: Ideal for extending battery life in portable electronics such as wearable devices, medical instruments, and remote sensors.
2. Consumer Electronics: Used in gadgets where compact size and energy efficiency are crucial, like digital cameras, MP3 players, and handheld gaming devices.
3. Internet of Things (IoT): Powers IoT devices requiring a stable voltage from single-cell or low-voltage sources.
4. Energy Harvesting: Suitable for applications like solar-powered devices where energy needs to be efficiently converted and stored.
5. LED Lighting: Used in driving LED circuits in flashlights and other lighting solutions requiring boost conversion.
These applications benefit from its compact design, low quiescent current, and high efficiency.
Package
The MCP1642B-50I/MC is a step-up DC-DC converter from Microchip Technology, typically available in an SOT-23-6 package. This package type is compact and suitable for space-constrained applications, offering efficient power conversion in small electronic devices.
