TPS2145IPWPR

Product Overview

Category

The TPS2145IPWPR belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

This product is primarily used for power distribution and management in electronic devices. It provides efficient control and regulation of power supply, ensuring optimal performance and protection for various components.

Characteristics

• High efficiency: The TPS2145IPWPR offers high conversion efficiency, minimizing power loss during operation.
• Compact package: It comes in a small form factor, making it suitable for space-constrained applications.
• Wide input voltage range: The device can handle a broad range of input voltages, enhancing its versatility.
• Overcurrent protection: It incorporates overcurrent protection mechanisms to safeguard connected devices from damage.
• Low standby power consumption: The TPS2145IPWPR consumes minimal power when in standby mode, contributing to energy efficiency.

Package and Quantity

The TPS2145IPWPR is available in a standard 20-pin TSSOP (Thin Shrink Small Outline Package). It is typically sold in reels containing a quantity of 250 units.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.8V to 3.6V
• Maximum Output Current: 4A
• Operating Temperature Range: -40°C to 85°C
• Switching Frequency: 1.5MHz

Pin Configuration

The TPS2145IPWPR features a 20-pin TSSOP package with the following pin configuration:

1. EN (Enable)
2. VIN (Input Voltage)
3. GND (Ground)
4. VOUT (Output Voltage)
5. PG (Power Good)
6. FB (Feedback)
7. SS (Soft Start)
8. BST (Bootstrap)
9. SW (Switch)
10. PGND (Power Ground)
11. VSENSE (Voltage Sense)
12. VREF (Reference Voltage)
13. AGND (Analog Ground)
14. COMP (Compensation)
15. SS/TRK (Soft Start/Tracking)
16. FB2 (Feedback 2)
17. UVLO (Under Voltage Lockout)
18. OVP (Over Voltage Protection)
19. PG2 (Power Good 2)
20. VIN2 (Input Voltage 2)

Functional Features

• Dynamic Voltage Scaling: The TPS2145IPWPR allows for dynamic adjustment of the output voltage, enabling efficient power management based on load requirements.
• Soft Start and Tracking: It incorporates soft start and tracking features to minimize inrush current during startup and ensure smooth voltage transitions.
• Power Good Indication: The device provides a power good signal that indicates when the output voltage is within the specified range, enhancing system reliability.
• Overcurrent Protection: The TPS2145IPWPR includes overcurrent protection mechanisms to prevent excessive current flow, protecting both the device and connected components.

Advantages and Disadvantages

Advantages

• High efficiency power management
• Compact form factor
• Wide input voltage range
• Overcurrent protection
• Low standby power consumption

Disadvantages

• Limited maximum output current (4A)
• Relatively high switching frequency (1.5MHz)

Working Principles

The TPS2145IPWPR operates by regulating the input voltage and converting it to the desired output voltage using a switching regulator. It employs pulse width modulation (PWM) techniques to control the duty cycle of the switching transistor, thereby adjusting the output voltage. The feedback mechanism continuously monitors the output voltage and adjusts the duty cycle accordingly to maintain a stable output.

Detailed Application Field Plans

The TPS2145IPWPR finds applications in various electronic devices, including but not limited to: - Mobile phones and tablets - Portable media players - Digital cameras - Wireless communication devices - Industrial control systems - Battery-powered devices

Alternative Models

For those seeking alternative options, the following power management ICs can be considered: - TPS2141IPWPR - TPS2142IPWPR - TPS2143IPWPR - TPS2144IPWPR

These models offer similar functionality and characteristics, providing flexibility in choosing the most suitable solution for specific requirements.

In conclusion, the TPS2145IPWPR is a highly efficient power management IC that offers a compact form factor, wide input voltage range, and overcurrent protection. While it has limitations in terms of maximum output current and switching frequency, its advantages make it an excellent choice for various applications in the electronics industry.