TPS22918 Single-Channel Load Switch

Specifications

Product Overview

TPS22918 is a Texas Instruments single-channel load switch for Power_Management designs that need controlled connection of a load to an input rail. The device operates over a 1 V to 5.5 V input range and is rated for 2 A continuous switch current, with an absolute maximum continuous switch current of 2 A at 70°C ambient.

The switch has low typical on-resistance values of 52 mΩ at VIN=5 V and 53 mΩ at VIN=3.3 V. Supply current data includes 9.2 µA typical quiescent current at VIN=5.5 V and 8.3 µA typical at VIN=3.3 V, with 0.5 µA typical shutdown current under the stated 3.3 V shutdown condition.

TPS22918 is offered in the SOT-23-6 (DBV) package, with a nominal body size of 2.90 mm × 1.60 mm and package dimensions noted as 2.90 mm × 2.80 mm, 0.95 mm pitch, and 1.45 mm height with leads. Thermal data includes 183.2°C/W junction-to-ambient resistance for the 6-pin DBV package. Typical uses include load switching, rail gating, output discharge control, and compact board-level power distribution.

Key Features

• 1 V to 5.5 V operating input range
• 2 A continuous load switch current capability
• 52 mΩ typical on-resistance at VIN=5 V
• 53 mΩ typical on-resistance at VIN=3.3 V
• 8.3 µA typical quiescent current at VIN=3.3 V
• 0.5 µA typical shutdown current at VIN=3.3 V
• 0 V to 0.5 V ON low-level input
• 1 V to 5.5 V ON high-level input
• 24 Ω typical output pulldown resistance
• 2 µs typical turn-off time

Typical Applications

• Power rail load switching
• Board-level power distribution
• Input rail gating
• Controlled load turn-on
• Output discharge control
• Low-voltage power path control
• Compact SOT-23 power switching

Procurement Notes

When requesting a quote for TPS22918, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.

If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.

For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.