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TPS70345PWPR
IC REG LINEAR 3.3V/1.2V 24HTSSOP
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- 包 HTSSOP (PWP)-24
- 資料表 TPS70345PWPR DataSheet
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規格
| Package | Tape & Reel (TR),Bulk |
| ProductStatus | Active |
| OutputConfiguration | Positive |
| OutputType | Fixed |
| NumberofRegulators | 2 |
| Voltage-Input(Max) | 6V |
| Voltage-Output(Min/Fixed) | 3.3V, 1.2V |
| VoltageDropout(Max) | 0.26V @ 1A, - |
| Current-Output | 1A, 2A |
| Current-Quiescent(Iq) | 250 µA |
| ControlFeatures | Enable, Power Good, Reset, Sequencing |
| ProtectionFeatures | Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO) |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | 24-TSSOP (0.173, 4.40mm Width) Exposed Pad |
概述
Description
The TPS70345PWPR is a dual-output voltage regulator from Texas Instruments designed for applications requiring both a high-performance regulator and a power-up sequencing capability. It features two low-dropout (LDO) voltage regulators: one fixed and one adjustable. The device provides excellent line and load transient responses, making it suitable for powering sensitive analog and digital loads.
Key features include independent enable pins, a power-up sequencing capability to ensure proper startup of multiple supply voltages, and thermal shutdown protection to prevent device damage from overheating. The regulator offers low noise, high PSRR, and minimal output voltage ripple, ensuring stable operation for sensitive electronic components.
The TPS70345PWPR comes in a PowerPAD™ package, enhancing thermal performance, and is capable of delivering up to 1.5A per output, making it suitable for a wide range of applications, including telecommunications, industrial, and consumer electronics. Its flexibility and robust performance characteristics make the TPS70345PWPR an ideal choice for designers needing a reliable and efficient power management solution.
Key features include independent enable pins, a power-up sequencing capability to ensure proper startup of multiple supply voltages, and thermal shutdown protection to prevent device damage from overheating. The regulator offers low noise, high PSRR, and minimal output voltage ripple, ensuring stable operation for sensitive electronic components.
The TPS70345PWPR comes in a PowerPAD™ package, enhancing thermal performance, and is capable of delivering up to 1.5A per output, making it suitable for a wide range of applications, including telecommunications, industrial, and consumer electronics. Its flexibility and robust performance characteristics make the TPS70345PWPR an ideal choice for designers needing a reliable and efficient power management solution.
Features
The TPS70345PWPR is a dual-output low-dropout (LDO) voltage regulator with various features that make it suitable for powering sensitive electronics. Key features include:
1. Dual Outputs: It provides two regulated output voltages, typically used for powering different sections of a device.
2. Low Dropout Voltage: Ensures efficient operation with minimal voltage difference between input and output, useful for battery-powered devices.
3. Power-Up Sequencing: Offers controlled power-up sequencing to ensure stability and proper initialization of connected components.
4. Wide Input Voltage Range: Can operate with a broad range of input voltages, enhancing versatility.
5. High PSRR: Offers high Power Supply Rejection Ratio, minimizing the impact of input voltage fluctuations on the output.
6. Thermal and Overcurrent Protection: Includes features to protect the device from overheating and excessive current, enhancing reliability.
7. Integrated Supervisory Circuit: Monitors output voltage levels and can trigger a reset if they fall outside specified limits.
8. Small Package: Available in a compact PowerPAD™ package, optimizing PCB space.
Overall, the TPS70345PWPR is designed for applications requiring reliable, efficient dual-output regulation with advanced protection and monitoring features.
1. Dual Outputs: It provides two regulated output voltages, typically used for powering different sections of a device.
2. Low Dropout Voltage: Ensures efficient operation with minimal voltage difference between input and output, useful for battery-powered devices.
3. Power-Up Sequencing: Offers controlled power-up sequencing to ensure stability and proper initialization of connected components.
4. Wide Input Voltage Range: Can operate with a broad range of input voltages, enhancing versatility.
5. High PSRR: Offers high Power Supply Rejection Ratio, minimizing the impact of input voltage fluctuations on the output.
6. Thermal and Overcurrent Protection: Includes features to protect the device from overheating and excessive current, enhancing reliability.
7. Integrated Supervisory Circuit: Monitors output voltage levels and can trigger a reset if they fall outside specified limits.
8. Small Package: Available in a compact PowerPAD™ package, optimizing PCB space.
Overall, the TPS70345PWPR is designed for applications requiring reliable, efficient dual-output regulation with advanced protection and monitoring features.
Package
The TPS70345PWPR is a low-dropout (LDO) voltage regulator from Texas Instruments. It comes in a PowerPAD™ TSSOP (Thermally Enhanced Thin Shrink Small Outline Package) with 20 pins, designated by the suffix "PWPR" in its part number. This package type is designed to provide efficient thermal performance.
Pinout
The TPS70345PWPR is a dual-output low-dropout (LDO) voltage regulator with an integrated supervisory function, manufactured by Texas Instruments. It is housed in a 20-pin HTSSOP package. The device provides two regulated output voltages and is designed for applications requiring high levels of integration and performance.
The main functions of the TPS70345 include:
1. Dual LDO Regulators: It provides two independent outputs, typically fixed at 3.3V and 1.5V, suitable for powering digital and analog circuits.
2. Power-On Reset (POR) Supervisory Circuit: Monitors the output voltage and generates a reset signal for system initialization upon power-up or when the output voltage falls below a specified threshold.
3. Active-High Enable Pins: Allows the user to enable or disable each regulator independently.
4. Thermal and Overcurrent Protection: Safeguards the device from damage due to overheating or excessive current draw.
In summary, the TPS70345PWPR is a robust solution for applications needing dual LDO outputs with additional system supervisory features, all within a compact 20-pin package.
The main functions of the TPS70345 include:
1. Dual LDO Regulators: It provides two independent outputs, typically fixed at 3.3V and 1.5V, suitable for powering digital and analog circuits.
2. Power-On Reset (POR) Supervisory Circuit: Monitors the output voltage and generates a reset signal for system initialization upon power-up or when the output voltage falls below a specified threshold.
3. Active-High Enable Pins: Allows the user to enable or disable each regulator independently.
4. Thermal and Overcurrent Protection: Safeguards the device from damage due to overheating or excessive current draw.
In summary, the TPS70345PWPR is a robust solution for applications needing dual LDO outputs with additional system supervisory features, all within a compact 20-pin package.
Manufacturer
The TPS70345PWPR is manufactured by Texas Instruments (TI). Texas Instruments is a well-known American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. The company is one of the top semiconductor producers in the world and is notable for its development of analog chips and embedded processors. Based in Dallas, Texas, TI focuses on innovation in electronics, providing solutions for various industries, including automotive, industrial, personal electronics, communications equipment, and enterprise systems.
Application
The TPS70345PWPR is a dual-output low-dropout (LDO) voltage regulator used in applications requiring precise power management. It is commonly found in telecommunications equipment, industrial controls, and consumer electronics. The device is suitable for systems that need low noise, high power supply rejection, and fast transient response, such as microprocessors, DSPs, and sensitive analog circuits. Its dual supply feature makes it ideal for applications requiring multiple voltage rails.
Equivalent
The TPS70345PWPR is a dual-output low-dropout (LDO) voltage regulator from Texas Instruments. Equivalent products from other manufacturers might include components like the LT1963A (Analog Devices), MCP1827 (Microchip Technology), and NCP703 (ON Semiconductor), depending on specific requirements like voltage, current ratings, and additional features. Always compare datasheets to ensure compatibility.
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