Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | DCS-Control™ |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Programmable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 3.3V |
| Voltage-Input(Max) | 10V |
| Voltage-Output(Min/Fixed) | 1.8V |
| Voltage-Output(Max) | 3.3V |
| Current-Output | 300mA |
| Frequency-Switching | Up to 2.5MHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 12-WFDFN Exposed Pad |
Tổng quan
Description
The TPS62745DSSR is a high-efficiency step-down converter from Texas Instruments, designed for ultra-low power applications. It operates with an input voltage range of 2.2 V to 5.5 V, making it suitable for battery-powered devices. The device offers an output current capability of up to 300 mA and features a typical quiescent current of just 360 nA, enabling extended battery life.
Key features include a low output voltage ripple and a wide output voltage range, adjustable via external resistors. The TPS62745DSSR supports both PWM (Pulse Width Modulation) and PFM (Pulse Frequency Modulation) modes for optimized efficiency across load conditions. Additionally, it includes an automatic transition between modes based on the load to maintain optimal efficiency.
Protection features like overcurrent, short-circuit, and thermal shutdown are integrated to enhance reliability. The small 2 mm x 2 mm SON-6 package makes it ideal for space-constrained applications such as wearables, IoT devices, and other portable electronics. Overall, the TPS62745DSSR is lauded for its low power consumption, compact size, and high performance.
Key features include a low output voltage ripple and a wide output voltage range, adjustable via external resistors. The TPS62745DSSR supports both PWM (Pulse Width Modulation) and PFM (Pulse Frequency Modulation) modes for optimized efficiency across load conditions. Additionally, it includes an automatic transition between modes based on the load to maintain optimal efficiency.
Protection features like overcurrent, short-circuit, and thermal shutdown are integrated to enhance reliability. The small 2 mm x 2 mm SON-6 package makes it ideal for space-constrained applications such as wearables, IoT devices, and other portable electronics. Overall, the TPS62745DSSR is lauded for its low power consumption, compact size, and high performance.
Equivalent
The TPS62745DSSR is a step-down converter designed by Texas Instruments. Equivalent products from other manufacturers might include:
1. Microchip: MCP16311/MCP16312 - High-Efficiency Step-Down Regulators.
2. Analog Devices: ADP5301 - Ultra-Low Power Step-Down Regulator.
3. Maxim Integrated: MAX17222 - NanoPower Step-Down Converter.
Ensure to verify the specific parameters like input/output voltage, current rating, efficiency, and package type when selecting an equivalent.
1. Microchip: MCP16311/MCP16312 - High-Efficiency Step-Down Regulators.
2. Analog Devices: ADP5301 - Ultra-Low Power Step-Down Regulator.
3. Maxim Integrated: MAX17222 - NanoPower Step-Down Converter.
Ensure to verify the specific parameters like input/output voltage, current rating, efficiency, and package type when selecting an equivalent.
Features
The TPS62745DSSR is a high-efficiency, step-down converter specifically designed for applications with a focus on ultra-low power consumption. Key features include:
1. Low Quiescent Current: It offers an ultra-low quiescent current of about 360 nA, making it ideal for battery-operated devices.
2. Input Voltage Range: Supports a wide input voltage range from 2.2 V to 5.5 V, suitable for single Li-Ion cells or various battery chemistries.
3. Output Voltage: Programmable output voltage between 1.8 V and 3.3 V.
4. Output Current: Delivers up to 300 mA continuous output current.
5. Efficiency: Optimized for high efficiency over a wide load current range; achieves up to 90% efficiency at low output power.
6. Mode: Features selectable operation modes, including power-save mode for increased efficiency at light loads.
7. Load Transients: Fast load transient response.
8. Size: Comes in a small, space-saving package, suitable for compact designs.
9. Protection: Includes over-temperature and over-current protection.
These features make it especially suitable for low-power applications such as IoT devices, wearables, and medical instruments.
1. Low Quiescent Current: It offers an ultra-low quiescent current of about 360 nA, making it ideal for battery-operated devices.
2. Input Voltage Range: Supports a wide input voltage range from 2.2 V to 5.5 V, suitable for single Li-Ion cells or various battery chemistries.
3. Output Voltage: Programmable output voltage between 1.8 V and 3.3 V.
4. Output Current: Delivers up to 300 mA continuous output current.
5. Efficiency: Optimized for high efficiency over a wide load current range; achieves up to 90% efficiency at low output power.
6. Mode: Features selectable operation modes, including power-save mode for increased efficiency at light loads.
7. Load Transients: Fast load transient response.
8. Size: Comes in a small, space-saving package, suitable for compact designs.
9. Protection: Includes over-temperature and over-current protection.
These features make it especially suitable for low-power applications such as IoT devices, wearables, and medical instruments.
Pinout
The TPS62745DSSR is a step-down converter produced by Texas Instruments. It comes in a 6-pin WSON package. The primary function of this device is to provide an efficient step-down conversion, ideal for powering microcontrollers and other low-power devices from battery sources. It features an ultra-low quiescent current, making it particularly suitable for low-power applications and enhancing battery life in portable devices. Some key features include adjustable output voltage, high efficiency at low loads, and an easy-to-use design. The pin configuration typically includes VIN (input voltage), VOUT (output voltage), GND (ground), EN (enable), FB (feedback), and a power switch node or related function depending on the specific package details. Always refer to the manufacturer’s datasheet for precise pin functions and electrical characteristics.
Manufacturer
The TPS62745DSSR is manufactured by Texas Instruments Incorporated (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. TI is one of the largest semiconductor companies in the world, and its products are used in a wide array of applications, including consumer electronics, automotive systems, industrial equipment, and communications devices. The company is known for its focus on innovation and development in analog and embedded processing technologies.
Application
The TPS62745DSSR is a highly efficient step-down DC-DC converter designed for battery-powered applications. It is ideal for use in a variety of areas including wearable electronics, Internet of Things (IoT) devices, wireless sensors, and portable medical devices. The converter is known for its ultra-low quiescent current, making it suitable for applications requiring long battery life. It can effectively manage power in systems that operate on coin cell or Li-Ion batteries. Additionally, its ability to provide a stable output voltage in low-power conditions makes it suitable for energy-harvesting applications. Its small size and high efficiency also make it an excellent choice for compact and lightweight electronic devices.
Package
The TPS62745DSSR is a DC-DC buck converter from Texas Instruments, available in a 3×3 mm, 10-pin WSON (Wettable Flanks Small Outline No-lead) package. This compact package is designed for efficient thermal performance and is suitable for space-constrained applications.
