Manufacturer: Texas Instruments

Key Specifications

• Package: SC70-5 (DCK)
• Topology: 1:1 P-channel switch
• Input Voltage Range: 1.8V to 5.5V
• Continuous Current: 100mA (max)
• On-Resistance: To be verified
• Operating Temperature: -40°C to 85°C
• Interface: GPIO/Logic level (enable pin)

The TPS22945DCKR from Texas Instruments is a compact, single-channel load switch designed for power-domain management in space-constrained applications. This device integrates a P-channel MOSFET with a 1:1 topology, enabling simple on/off control of power rails up to 100mA. Housed in a tiny SC70-5 package, it is ideal for portable and battery-powered electronics where board space is at a premium.

Key Features

• Input voltage range: 1.8V to 5.5V
• Maximum continuous current: 100mA
• Low quiescent current (to be verified)
• Logic-level enable input for direct GPIO control
• Built-in output discharge (to be verified)
• Operating temperature range: -40°C to 85°C
• Small SC70-5 (DCK) package for compact designs

Applications

• Portable and wearable devices
• Smart sensors and IoT modules
• Battery-powered equipment
• Power sequencing and load isolation

Selection Guidance

When selecting the TPS22945DCKR, verify the load current does not exceed 100mA and the input voltage stays within 1.8V to 5.5V. The device is controlled via a single enable pin, compatible with 1.8V logic. For higher current requirements, consider other members of the TPS2294x family. Always consult the datasheet for precise electrical characteristics and thermal considerations.