TPS61120PW

Product Overview

Category

The TPS61120PW belongs to the category of integrated circuits (ICs) and specifically falls under the category of boost converters.

Use

The TPS61120PW is primarily used as a boost converter in various electronic devices. It is designed to efficiently step up voltage levels, making it suitable for applications where a higher voltage is required than what is available from the power source.

Characteristics

• High efficiency: The TPS61120PW offers high conversion efficiency, minimizing power loss during voltage boosting.
• Wide input voltage range: It can accept a wide range of input voltages, making it versatile for different power sources.
• Adjustable output voltage: The output voltage can be adjusted according to the specific requirements of the application.
• Overcurrent protection: The IC incorporates overcurrent protection to safeguard against excessive current flow.

Package

The TPS61120PW is available in a standard 20-pin TSSOP (Thin Shrink Small Outline Package) package. This package provides good thermal performance and ease of integration into circuit designs.

Essence

The essence of the TPS61120PW lies in its ability to efficiently boost voltage levels, enabling the operation of electronic devices that require higher voltages than what is available from the power source.

Packaging/Quantity

The TPS61120PW is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 2.7V to 18V
• Output Voltage Range: 4V to 30V
• Maximum Output Current: 1A
• Switching Frequency: 1.2MHz
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TPS61120PW has a total of 20 pins. Here is a detailed pin configuration:

1. EN (Enable)
2. FB (Feedback)
3. VSENSE (Voltage Sense)
4. AGND (Analog Ground)
5. PGND (Power Ground)
6. SW (Switch)
7. SW (Switch)
8. SW (Switch)
9. SW (Switch)
10. SW (Switch)
11. SW (Switch)
12. SW (Switch)
13. SW (Switch)
14. SW (Switch)
15. SW (Switch)
16. SW (Switch)
17. SW (Switch)
18. SW (Switch)
19. VIN (Input Voltage)
20. VOUT (Output Voltage)

Functional Features

• High-efficiency voltage boosting
• Adjustable output voltage
• Overcurrent protection
• Thermal shutdown protection
• Soft start for smooth power-up

Advantages and Disadvantages

Advantages

• High conversion efficiency reduces power loss.
• Wide input voltage range allows compatibility with various power sources.
• Adjustable output voltage provides flexibility for different applications.
• Overcurrent protection enhances device safety.

Disadvantages

• Limited maximum output current of 1A may not be suitable for high-power applications.
• The TSSOP package may require careful PCB layout to ensure proper heat dissipation.

Working Principles

The TPS61120PW operates as a boost converter by utilizing an inductor, a switch, and a diode. When the switch is closed, energy is stored in the inductor. When the switch opens, the stored energy is released, resulting in an increased output voltage. The feedback mechanism ensures that the output voltage remains within the desired range.

Detailed Application Field Plans

The TPS61120PW can be applied in various electronic devices and systems, including but not limited to: - Battery-powered devices requiring higher voltages - LED backlighting for LCD displays - Portable audio/video equipment - Industrial automation systems

Detailed and Complete Alternative Models

1. TPS61121PW: Similar to the TPS61120PW, but with a higher maximum output current of 1.5A.
2. TPS61122PW: A variant with an integrated Schottky diode for simplified circuit design.
3. TPS61123PW: Offers additional features such as adjustable switching frequency and synchronization capability.

These alternative models provide options with varying specifications and additional functionalities, allowing designers to choose the most suitable boost converter for their specific requirements.

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