TPS22945DCKRG4

Product Overview

Category

The TPS22945DCKRG4 belongs to the category of power management integrated circuits (PMICs).

Use

This PMIC is specifically designed for managing power in portable electronic devices, such as smartphones, tablets, and wearable devices.

Characteristics

• Low on-resistance: The TPS22945DCKRG4 offers a low on-resistance, which helps minimize power losses and improve overall efficiency.
• Fast switching speed: This PMIC provides fast switching speeds, allowing for quick response times and efficient power management.
• Low quiescent current: The TPS22945DCKRG4 has a low quiescent current, ensuring minimal power consumption during standby or idle modes.
• Overcurrent protection: It features built-in overcurrent protection, safeguarding the device and connected components from damage due to excessive current flow.

Package

The TPS22945DCKRG4 comes in a small 6-pin SC-70 package, which is suitable for space-constrained applications.

Essence

The essence of the TPS22945DCKRG4 lies in its ability to efficiently manage power distribution in portable electronic devices, optimizing performance and extending battery life.

Packaging/Quantity

This PMIC is typically available in reels, with a quantity of 3000 units per reel.

Specifications

• Input voltage range: 1.5V to 5.5V
• Output voltage range: 0V to VCC
• On-resistance: 40mΩ (typical)
• Quiescent current: 0.1μA (typical)
• Operating temperature range: -40°C to 85°C

Detailed Pin Configuration

The TPS22945DCKRG4 has the following pin configuration:

1. EN (Enable): Controls the power state of the device.
2. IN (Input): Connects to the input voltage source.
3. GND (Ground): Common ground reference for the device.
4. OUT (Output): Connects to the load or downstream circuitry.
5. PG (Power Good): Provides an indication of the output voltage status.
6. NC (No Connection): This pin is not connected and should be left unconnected.

Functional Features

• Power sequencing: The TPS22945DCKRG4 supports power sequencing, allowing for controlled power-up and power-down sequences in multi-voltage systems.
• Undervoltage lockout (UVLO): It features UVLO protection, preventing operation when the input voltage falls below a specified threshold.
• Thermal shutdown: This PMIC incorporates thermal shutdown protection, automatically disabling the device when the temperature exceeds a safe limit.
• Fault reporting: The TPS22945DCKRG4 provides fault reporting through the PG pin, indicating any abnormal conditions such as overcurrent or overtemperature events.

Advantages and Disadvantages

Advantages

• Efficient power management, leading to improved battery life.
• Fast switching speeds enable quick response times.
• Small package size suitable for space-constrained applications.
• Built-in protection features enhance system reliability.

Disadvantages

• Limited input voltage range (1.5V to 5.5V).
• Higher on-resistance compared to some alternative models.

Working Principles

The TPS22945DCKRG4 operates by controlling the flow of current between the input and output pins. When the EN pin is high, the PMIC allows current to flow from the input to the output. Conversely, when the EN pin is low, the PMIC blocks the current flow, effectively disconnecting the load from the input source.

Detailed Application Field Plans

The TPS22945DCKRG4 finds application in various portable electronic devices, including: - Smartphones - Tablets - Wearable devices - Portable gaming consoles - Portable medical devices

Detailed and Complete Alternative Models

1. TPS22946DCKRG4: Similar to the TPS22945DCKRG4, but with a lower on-resistance.
2. TPS22947DCKRG4: Offers an extended input voltage range of 1.5V to 6.5V.
3. TPS22948DCKRG4: Provides enhanced overcurrent protection features.

These alternative models offer similar functionality and can be considered as substitutes for the TPS22945DCKRG4 based on specific application requirements.

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