TPS61023DRLR Detailed explanation of pin function specifications and circuit principle instructions
The TPS61023DRLR is a product from Texas Instruments (TI). It is a boost converter IC, specifically designed to step up input voltages for power applications, typically used in portable devices that require higher voltages than the power supply provides. The DRLR suffix in the part number indicates a WSON (Very Thin) 6-pin package.
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Package Type and Pinout Details:
Package Type: WSON (6-pin) with a leadless surface-mount package Total Number of Pins: 6 Pins Pin Function Table (6 Pins): Pin Number Pin Name Pin Function Description 1 VIN Input voltage pin, connected to the supply voltage, typically ranging from 0.8V to 3.6V. This is the voltage that is being boosted by the IC. 2 SW Switch pin, connected to an external inductor. It is used to switch the current flow and store energy in the inductor during the operation of the boost converter. 3 GND Ground pin, this is connected to the system's ground. All reference voltages are referenced to this pin. 4 FB Feedback pin, used to regulate the output voltage by comparing the output voltage to an internal reference. The resistor divider network is typically used here to set the output voltage. 5 EN Enable pin, used to turn the IC on or off. It is typically driven high (logic 1) to enable the device and low (logic 0) to disable the operation. 6 VOUT Output voltage pin, this is where the boosted voltage is delivered. It provides the regulated output voltage to the load.Circuit Principle:
The TPS61023 is a boost converter, meaning that it steps up the input voltage to a higher output voltage. This is achieved through an inductor and switching components. The operation is controlled by an internal switch (SW), and the output voltage is regulated through the feedback loop (FB). The IC uses pulse-width modulation (PWM) to control the switching cycle. The feedback pin ensures that the output voltage remains within a desired range.
Step-up Conversion: The converter works by rapidly switching the input voltage through the inductor, storing energy in the magnetic field of the inductor, and releasing it at a higher voltage to the output capacitor . PWM Control: The duty cycle of the switching signal is adjusted to regulate the output voltage. This feedback loop ensures that the desired output voltage is maintained despite variations in the input voltage or load.Pinout Functionality FAQ (20 Questions):
1. What is the input voltage range for the TPS61023DRLR? The input voltage range for the TPS61023DRLR is from 0.8V to 3.6V. 2. What is the function of the SW pin in the TPS61023DRLR? The SW pin is used to connect to the external inductor. It switches the current and stores energy in the inductor for the boost converter operation. 3. How does the TPS61023DRLR regulate the output voltage? It regulates the output voltage through the feedback pin (FB), where the feedback is compared to the internal reference voltage to ensure stable operation. 4. Can the TPS61023DRLR be turned off? Yes, the IC can be turned off by pulling the EN (Enable) pin low (logic 0). 5. What is the role of the GND pin? The GND pin is the ground connection, serving as a common reference for all voltages in the circuit. 6. What is the recommended output voltage for the TPS61023DRLR? The typical output voltage is set via a resistor divider network at the FB pin, and the device can output a voltage up to 5.5V, depending on the design. 7. Can the TPS61023DRLR operate with a single cell battery? Yes, the IC is designed to operate with voltages as low as 0.8V, making it ideal for single-cell battery applications. 8. What is the enable pin's logic level for operation? The enable pin (EN) should be driven high (logic 1) for the IC to operate, and driven low (logic 0) to turn it off. 9. What is the switching frequency of the TPS61023DRLR? The typical switching frequency is around 1.2 MHz, providing efficient conversion and low noise operation. 10. How does the feedback pin (FB) work? The FB pin is used to monitor the output voltage by connecting a voltage divider. The feedback voltage is compared with the internal reference to regulate the output voltage. 11. Is the TPS61023DRLR capable of operating with external inductors? Yes, the TPS61023DRLR requires an external inductor to operate efficiently. 12. Can the TPS61023DRLR be used in high current applications? While the TPS61023 is designed for efficient step-up conversion, for higher current applications, external components and layout optimization may be required to maintain performance. 13. What is the output voltage ripple on the TPS61023DRLR? The output voltage ripple is minimal but depends on the input voltage, output load, and external components like capacitors and inductors. 14. What are the thermal limitations of the TPS61023DRLR? The IC has thermal limitations that require proper heat dissipation. It operates within the temperature range of -40°C to +125°C, and care should be taken with PCB layout and thermal management. 15. Is the TPS61023DRLR protected against short circuits? Yes, the TPS61023 includes protection features such as over-current protection and thermal shutdown. 16. Can the TPS61023DRLR be used for charging applications? Yes, it can be used in charging circuits where a higher output voltage is needed from a lower input voltage source. 17. What is the quiescent current of the TPS61023DRLR? The quiescent current is typically 30 µA in burst mode operation, which is low and ideal for battery-operated applications. 18. Can the output voltage be adjusted on the TPS61023DRLR? Yes, the output voltage can be adjusted by modifying the resistor divider on the FB pin to set the desired output. 19. What are the typical applications for the TPS61023DRLR? The TPS61023DRLR is commonly used in battery-powered devices, low-voltage logic systems, portable electronics, and other applications where a higher output voltage is needed from a lower input. 20. What kind of output capacitor is recommended for the TPS61023DRLR? A low ESR (equivalent series resistance) ceramic capacitor is recommended for the output to minimize ripple and ensure stable operation.This is a detailed explanation and breakdown of the TPS61023DRLR. If you need any more specific details or further clarification, feel free to ask!
