Overview
The TPS22917LDBVR, produced by Texas Instruments, is a small, single-channel load switch designed for efficient power distribution. This device utilizes a low-leakage P-Channel MOSFET to minimize power loss, making it suitable for a wide range of applications. The TPS22917LDBVR operates over an input voltage range of 1 V to 5.5 V and can handle a maximum continuous current of 2 A. It features advanced gate control design, allowing it to operate with minimal increase in ON-Resistance and power loss even at low voltages. The device is available in a 6-pin SOT-23 package, facilitating visual inspection of solder joints and characterized for operation over a temperature range of –40°C to 125°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Operating Voltage Range (VIN) | 1 to 5.5 | V |
| Maximum Continuous Current (IMAX) | 2 | A |
| On-Resistance (RON) | 80 mΩ (typical at 5 VIN) | mΩ |
| Activation Current (IRCB) | -500 mA (typical) | mA |
| Reverse Leakage (IIN,RCB) | -1 µA (maximum) | µA |
| Enable Logic | Active Low (TPS22917L) | |
| Package Type | SOT-23 (6-pin) | |
| Operating Temperature Range | -40°C to 125°C | °C |
Key Features
- Low Leakage P-Channel MOSFET: Minimizes power loss and reduces dropout voltage across the device.
- Adjustable Rise and Fall Times: Can be independently adjusted with external components for system-level optimizations.
- Quick Output Discharge (QOD): Allows configuration of the discharge rate of VOUT after the switch is disabled.
- Smart Pulldown: Keeps the ON pin from floating until system sequencing is complete, preventing unnecessary power loss.
- Integrated Control Logic and Driver: Eliminates the need for external components, reducing solution size and bill of materials (BOM) count.
- Configurable Slew Rate: Helps reduce or eliminate power supply droop due to large inrush currents.
Applications
- Industrial Systems: Suitable for various industrial applications requiring efficient power distribution.
- Set Top Box: Used in set-top boxes for managing power to different components.
- Blood Glucose Meters: Ideal for medical devices that require low power loss and efficient power management.
- Electronic Point of Sale (POS): Used in POS systems to manage power distribution efficiently.
Q & A
- What is the input operating voltage range of the TPS22917LDBVR?
The input operating voltage range is from 1 V to 5.5 V.
- What is the maximum continuous current rating of the TPS22917LDBVR?
The maximum continuous current rating is 2 A.
- What is the typical on-resistance of the TPS22917LDBVR?
The typical on-resistance is 80 mΩ at 5 VIN.
- How is the rise time adjusted in the TPS22917LDBVR?
The rise time can be adjusted with external components, specifically by connecting a capacitor from the CT pin to VIN.
- What is the purpose of the Quick Output Discharge (QOD) pin?
The QOD pin allows configuration of the discharge rate of VOUT after the switch is disabled.
- What is the enable logic of the TPS22917LDBVR?
The TPS22917LDBVR uses active low enable logic.
- What package type is the TPS22917LDBVR available in?
The device is available in a 6-pin SOT-23 package.
- What is the operating temperature range of the TPS22917LDBVR?
The operating temperature range is from -40°C to 125°C.
- How does the Smart Pulldown feature work in the TPS22917LDBVR?
The Smart Pulldown keeps the ON pin from floating until system sequencing is complete, preventing unnecessary power loss.
- What are some common applications of the TPS22917LDBVR?
Common applications include industrial systems, set-top boxes, blood glucose meters, and electronic point of sale systems.
