規格
| 屬性 | 價值 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Function | Step-Up |
| OutputConfiguration | Positive |
| Topology | Boost |
| OutputType | Fixed |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 0.7V |
| Voltage-Input(Max) | 5.5V |
| Voltage-Output(Min/Fixed) | 5V |
| Current-Output | 200mA (Switch) |
| Frequency-Switching | Up to 2MHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 6-TSSOP, SC-88, SOT-363 |
概述
Description
The TPS61222DCKR is a step-up DC-DC converter from Texas Instruments designed to efficiently boost a lower input voltage to a higher output voltage. It is particularly suitable for portable and battery-powered applications due to its low quiescent current and high efficiency. The device operates over a wide input voltage range and can start up from very low input voltages, making it ideal for applications such as single-cell alkaline, NiMH, or lithium batteries.
Key features of the TPS61222DCKR include its ability to deliver output currents up to 50 mA at 3.3V from a 1.2V input, and its compact size, which is facilitated by the small SOT-563 package. It requires minimal external components, usually just an inductor and two capacitors, simplifying the design process. The device also integrates protection features such as overcurrent protection and thermal shutdown, enhancing its reliability in various applications. Overall, the TPS61222DCKR offers an efficient and compact solution for powering low-voltage devices from a single-cell battery.
Key features of the TPS61222DCKR include its ability to deliver output currents up to 50 mA at 3.3V from a 1.2V input, and its compact size, which is facilitated by the small SOT-563 package. It requires minimal external components, usually just an inductor and two capacitors, simplifying the design process. The device also integrates protection features such as overcurrent protection and thermal shutdown, enhancing its reliability in various applications. Overall, the TPS61222DCKR offers an efficient and compact solution for powering low-voltage devices from a single-cell battery.
Equivalent
The TPS61222DCKR is a boost converter from Texas Instruments. Equivalent products could include:
1. Microchip MCP1640 - A similar step-up converter.
2. Analog Devices LT1615 - Offers boost functionality in a compact package.
3. ON Semiconductor NCP1402 - A low-power boost converter.
4. Maxim Integrated MAX1724 - A high-efficiency step-up converter.
These alternatives might not be direct drop-in replacements but offer similar functionality in boosting voltage in low-power applications. Always verify electrical characteristics and pin compatibility before substituting.
1. Microchip MCP1640 - A similar step-up converter.
2. Analog Devices LT1615 - Offers boost functionality in a compact package.
3. ON Semiconductor NCP1402 - A low-power boost converter.
4. Maxim Integrated MAX1724 - A high-efficiency step-up converter.
These alternatives might not be direct drop-in replacements but offer similar functionality in boosting voltage in low-power applications. Always verify electrical characteristics and pin compatibility before substituting.
Features
The TPS61222DCKR is a high-efficiency, low-power boost converter designed by Texas Instruments. It features an input voltage range of 0.7V to 5.5V, making it suitable for applications powered by single-cell alkaline, NiMH, or lithium batteries. It provides a fixed output voltage, ensuring a stable power supply for various applications. The device operates with a minimum switch current limit of 500mA and includes features like automatic PFM mode operation, which enhances efficiency at light loads.
The TPS61222DCKR boasts a high switching frequency of up to 2 MHz, allowing the use of small external components and reducing overall solution size. Its low quiescent current (typically 5.5µA) extends battery life in portable applications. The device includes protection features such as thermal shutdown and over-current protection to ensure reliable operation. Packaged in a compact 6-pin SC-70 (DCK) form factor, the TPS61222DCKR is ideal for space-constrained applications like wearable electronics, medical devices, and other battery-powered systems.
The TPS61222DCKR boasts a high switching frequency of up to 2 MHz, allowing the use of small external components and reducing overall solution size. Its low quiescent current (typically 5.5µA) extends battery life in portable applications. The device includes protection features such as thermal shutdown and over-current protection to ensure reliable operation. Packaged in a compact 6-pin SC-70 (DCK) form factor, the TPS61222DCKR is ideal for space-constrained applications like wearable electronics, medical devices, and other battery-powered systems.
Pinout
The TPS61222DCKR is a boost converter integrated circuit (IC) manufactured by Texas Instruments. It typically comes in a 6-pin SC-70 package. Here are the pin functions:
1. VIN: Power supply input. Connect to the input voltage source.
2. GND: Ground. Connect to the system ground.
3. SW: Switch pin. Connect this pin to the inductor and diode to form the boost converter topology.
4. VOUT: Output voltage pin. Connect to the output capacitor and load.
5. FB: Feedback pin. Connect to a resistor divider network to set the desired output voltage.
6. EN: Enable pin. Use to enable or disable the converter. A high level on this pin enables the device, while a low level disables it.
The TPS61222 is designed to provide a step-up voltage conversion with high efficiency, suitable for applications requiring longer battery life or higher output voltages from lower input voltages.
1. VIN: Power supply input. Connect to the input voltage source.
2. GND: Ground. Connect to the system ground.
3. SW: Switch pin. Connect this pin to the inductor and diode to form the boost converter topology.
4. VOUT: Output voltage pin. Connect to the output capacitor and load.
5. FB: Feedback pin. Connect to a resistor divider network to set the desired output voltage.
6. EN: Enable pin. Use to enable or disable the converter. A high level on this pin enables the device, while a low level disables it.
The TPS61222 is designed to provide a step-up voltage conversion with high efficiency, suitable for applications requiring longer battery life or higher output voltages from lower input voltages.
Manufacturer
The TPS61222DCKR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a wide array of integrated circuits and electronic components. The company is particularly well-known for its expertise in developing analog chips, embedded processors, and various other semiconductor technologies. TI's products are used in a broad range of applications, including consumer electronics, automotive systems, industrial equipment, and communication devices. As a major player in the semiconductor industry, TI focuses on innovation, quality, and reliability, serving customers worldwide with advanced technological solutions.
Application
The TPS61222DCKR is a step-up DC-DC converter designed for applications requiring efficient power conversion. Key application areas include:
1. Battery-powered devices, where it extends battery life by boosting voltage from sources like alkaline, NiMH, or lithium cells.
2. Portable electronics, such as smartphones, tablets, and wearable devices, that need stable power supply from low-voltage batteries.
3. Low-power sensors and IoT devices, ensuring they operate effectively on minimal power.
4. Energy-harvesting systems, where it boosts small, harvested energy to usable levels.
5. Medical instruments, providing reliable power for portable medical devices.
6. Consumer electronics, offering efficient power management in devices like cameras and GPS units.
These applications benefit from the converter's efficiency, compact size, and ability to maintain a stable output voltage.
1. Battery-powered devices, where it extends battery life by boosting voltage from sources like alkaline, NiMH, or lithium cells.
2. Portable electronics, such as smartphones, tablets, and wearable devices, that need stable power supply from low-voltage batteries.
3. Low-power sensors and IoT devices, ensuring they operate effectively on minimal power.
4. Energy-harvesting systems, where it boosts small, harvested energy to usable levels.
5. Medical instruments, providing reliable power for portable medical devices.
6. Consumer electronics, offering efficient power management in devices like cameras and GPS units.
These applications benefit from the converter's efficiency, compact size, and ability to maintain a stable output voltage.
Package
The TPS61222DCKR is a step-up DC-DC converter from Texas Instruments, available in a SC-70-6 package type. This small form factor package is designed for efficient space utilization in compact electronic devices.