Overview
The TPS22951YFPR, part of the TPS22914/15 series, is a small, low on-resistance (RON) single-channel load switch produced by Texas Instruments. This device is designed to operate over a wide input voltage range of 1.05 V to 5.5 V and can support a maximum continuous current of 2 A. It features an integrated N-channel MOSFET and is controlled by an active high switch control input, making it suitable for interfacing directly with low-voltage control signals. The device is particularly useful in space-constrained, battery-powered applications due to its ultra-small Wafer-Chip-Scale Package (WCSP) and low quiescent current.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Input Voltage Range | 1.05 V to 5.5 V | V |
| On-Resistance (RON) | 37 mΩ (at VIN = 5 V), 38 mΩ (at VIN = 3.3 V), 43 mΩ (at VIN = 1.8 V) | mΩ |
| Maximum Continuous Switch Current | 2 A | A |
| Quiescent Current | 7.7 µA (at VIN = 3.3 V) | µA |
| Control Input Threshold | 1 V or higher | V |
| Turn-On Time | 104 µs (TPS22914B/15B), 1300 µs (TPS22914C/15C) | µs |
| Turn-Off Time | 2 µs | µs |
| Output Pull-Down Resistor (TPS22915 only) | 143 Ω | Ω |
| Package Size | 0.78 mm × 0.78 mm, 0.4-mm pitch, 0.5-mm height (YFP) | mm |
| Operating Temperature Range | –40°C to +105°C | °C |
Key Features
- Integrated single-channel load switch with low on-resistance (RON)
- Wide input voltage range: 1.05 V to 5.5 V
- Maximum continuous switch current: 2 A
- Low quiescent current: 7.7 µA (typical at VIN = 3.3 V)
- Low control input threshold enables use of 1 V or higher GPIO
- Controlled slew rate to reduce inrush current
- Quick output discharge (QOD) feature in TPS22915 models
- Ultra-small Wafer-Chip-Scale Package (WCSP)
- ESD performance tested per JESD 22: 2-kV HBM and 1-kV CDM
Applications
- Smartphones and mobile phones
- Ultrathin, Ultrabook™ / Notebook PC
- Tablet PC and phablet
- Wearable technology
- Solid State Drives (SSDs)
- Digital cameras
Q & A
- What is the input voltage range of the TPS22951YFPR?
The input voltage range is from 1.05 V to 5.5 V.
- What is the typical on-resistance (RON) of the TPS22951YFPR?
The typical on-resistance is 37 mΩ at VIN = 5 V, 38 mΩ at VIN = 3.3 V, and 43 mΩ at VIN = 1.8 V.
- What is the maximum continuous switch current of the TPS22951YFPR?
The maximum continuous switch current is 2 A.
- What is the quiescent current of the TPS22951YFPR at VIN = 3.3 V?
The quiescent current is typically 7.7 µA at VIN = 3.3 V.
- Does the TPS22951YFPR have a quick output discharge feature?
Yes, the TPS22915 models have a quick output discharge (QOD) feature.
- What is the package size of the TPS22951YFPR?
The package size is 0.78 mm × 0.78 mm, with a 0.4-mm pitch and 0.5-mm height (YFP).
- What is the operating temperature range of the TPS22951YFPR?
The operating temperature range is from –40°C to +105°C.
- What are some common applications for the TPS22951YFPR?
Common applications include smartphones, ultrathin notebooks, tablet PCs, wearable technology, solid state drives, and digital cameras.
- How is the switch controlled in the TPS22951YFPR?
The switch is controlled by an active high switch control input.
- What is the ESD performance of the TPS22951YFPR?
The device is ESD performance tested per JESD 22: 2-kV HBM and 1-kV CDM.
