The TPS53513RVER is a product from Texas Instruments, specifically part of their Power management IC (Integrated Circuit) family. This particular IC is a highly integrated, synchronous buck converter designed for efficient power delivery in applications such as DC-DC conversion for processors, memory, and other components.
Pin Function Specifications and Circuit Principle
1. Package Information: Package Type: VQFN (Very Thin Quad Flat No-lead) Package Size: 5mm x 5mm Pin Count: 32 pins 2. Pin Function Descriptions:Below is the detailed list of the pins and their respective functions:
Pin Number Pin Name Function Description 1 PGOOD Power Good Indicator. This pin is an open-drain output, which goes low if the output voltage is out of regulation. 2 EN Enable. This is a logic input pin that turns the device on or off depending on its logic state. 3 PGND Power Ground. The reference ground for power-related components of the device. 4 VIN Input Voltage. The input voltage supply pin, which powers the internal circuitry of the device. 5 VOUT Output Voltage. The regulated output voltage pin that delivers power to the load. 6 BOOT Bootstrapping capacitor connection. This pin connects to a bootstrap capacitor for the internal high-side MOSFET driver. 7 LX Inductor Connection. This pin connects to the inductor, which is part of the switching node of the buck converter. 8 FB Feedback. This pin is used to sense the output voltage, which is compared to the reference voltage for regulation. 9 COMP Compensation. Used for external compensation to set the loop response and stability of the converter. 10 VCC Power Supply Pin for internal circuitry. 11 PGND Ground for power components. 12 SW Switch Node. The pin is connected to the internal switch and external components (inductor and capacitor) in the buck converter circuit. 13 VDD Input voltage for the control circuitry of the IC. 14 VSS Ground pin for signal processing. 15 SENSE+ Positive Voltage Sense Pin. This pin senses the output voltage in some configurations. 16 SENSE- Negative Voltage Sense Pin. This pin is used for the differential voltage feedback. 17 NC No Connect. This pin is not used and is reserved. 18 NC No Connect. Same as above. 19 NC No Connect. 20 NC No Connect. 21 NC No Connect. 22 NC No Connect. 23 NC No Connect. 24 NC No Connect. 25 NC No Connect. 26 NC No Connect. 27 NC No Connect. 28 NC No Connect. 29 NC No Connect. 30 NC No Connect. 31 NC No Connect. 32 NC No Connect. 3. Typical Circuit Diagram: The TPS53513RVER integrates a high-efficiency buck converter. It uses a switching regulator topology with external inductors and capacitors. The EN pin is used to enable or disable the device, while the feedback pin is utilized to ensure the output voltage is regulated according to the set reference voltage. A key feature of this device is its Power Good (PGOOD) output pin, indicating whether the output voltage is within acceptable limits.FAQs (Frequently Asked Questions)
Here are 20 common questions and their answers for the TPS53513RVER:
Q: What is the input voltage range for the TPS53513RVER? A: The input voltage range for the TPS53513RVER is from 4.5V to 14V.
Q: How do I enable or disable the TPS53513RVER? A: The device can be enabled or disabled by controlling the EN pin. A logic high enables the device, and a logic low disables it.
Q: What is the maximum output current for the TPS53513RVER? A: The TPS53513RVER can provide a maximum output current of 6A.
Q: What is the purpose of the BOOT pin? A: The BOOT pin connects to a bootstrap capacitor and is used to drive the internal high-side MOSFET in the buck converter.
Q: Can I use the TPS53513RVER without external inductors and capacitors? A: No, the TPS53513RVER requires external inductors and capacitors to function as part of the buck converter circuit.
Q: What is the typical efficiency of the TPS53513RVER? A: The typical efficiency is up to 95% depending on the output voltage and load conditions.
Q: How do I adjust the output voltage of the TPS53513RVER? A: The output voltage is adjusted using a feedback resistor divider connected to the FB pin.
Q: What happens if the PGOOD pin is low? A: If the PGOOD pin is low, it indicates that the output voltage is out of regulation or is below the acceptable limits.
Q: How can I configure the TPS53513RVER for remote sensing? A: Remote sensing can be configured by connecting the SENSE+ and SENSE- pins to sense the output voltage directly at the load.
Q: Is thermal management required for the TPS53513RVER? A: Yes, proper thermal management, such as a heatsink or adequate PCB copper area, is recommended to ensure the device operates within safe temperature limits.
Q: How does the COMP pin affect the performance of the TPS53513RVER? A: The COMP pin is used for external compensation, which affects the stability and transient response of the converter.
Q: Can the TPS53513RVER be used in a multi-phase configuration? A: Yes, the TPS53513RVER is designed to be used in multi-phase configurations for higher current applications.
Q: What is the output voltage range for the TPS53513RVER? A: The output voltage range can be adjusted from 0.8V to 6V, depending on the configuration of the feedback network.
Q: How do I select external components for the TPS53513RVER? A: External components such as inductors, capacitors, and resistors should be selected based on the desired output voltage, current, and switching frequency.
Q: What is the switching frequency of the TPS53513RVER? A: The switching frequency of the TPS53513RVER is typically 400kHz to 2MHz, depending on the external components and configuration.
Q: Can the TPS53513RVER be used with a 3.3V input? A: Yes, it can operate with a 3.3V input, but ensure that the output voltage and load conditions are within the device's specifications.
Q: Is the TPS53513RVER suitable for automotive applications? A: Yes, the TPS53513RVER is designed for industrial and automotive applications, with a wide input voltage range and robust thermal performance.
Q: How do I monitor the power state of the TPS53513RVER? A: The PGOOD pin provides a power-good signal that can be monitored to determine if the output voltage is within regulation.
Q: What is the typical output voltage ripple of the TPS53513RVER? A: The typical output voltage ripple is in the millivolt range, depending on the output load and external components.
Q: What protection features does the TPS53513RVER have? A: The TPS53513RVER includes overcurrent, overvoltage, and thermal shutdown protection to ensure safe operation.
This is a detailed overview of the TPS53513RVER, covering pin functions, the circuit's working principle, and answering some of the frequently asked questions regarding the device.
