Overview
The TPS22917DBVR is a single-channel load switch device from Texas Instruments, designed to provide efficient power management in various electronic systems. This device utilizes a low-leakage P-Channel MOSFET to minimize power loss and support operating voltages as low as 1 V. It is packaged in a 6-pin SOT-23 (DBV) package, which allows for visual inspection of solder joints and is characterized for operation over a temperature range of –40°C to 125°C.
Key Specifications
| Parameter | Value |
|---|---|
| Input Operating Voltage Range (VIN) | 1 V to 5.5 V |
| Maximum Continuous Current (IMAX) | 2 A |
| On-Resistance (RON) | 80 mΩ (typical) at 5 V IN, 120 mΩ (typical) at 1.8 V IN, 220 mΩ (typical) at 1 V IN |
| Ultra-Low Power Consumption | ON state (IQ): 0.5 µA (typical), OFF state (ISD): 10 nA (typical) |
| Smart ON Pin Pulldown (RPD) | 750 kΩ (typical) when VON ≤ VIL |
| Adjustable Turn ON Time | 100 µs at 72 mV/µs (CT open), 4000 µs at 2.3 mV/µs (CT = 1000 pF) |
| Output Discharge and Fall Time | Adjustable with QOD pin, internal resistance ≥ 150 Ω |
| Reverse Current Blocking (RCB) | Activation current: –500 mA (typical), Reverse leakage: –1 µA (maximum) |
| Package | SOT-23 (DBV), 6 pins |
| Operating Temperature Range | –40°C to 125°C |
Key Features
- Input operating voltage range from 1 V to 5.5 V, supporting low-voltage systems.
- Maximum continuous current of 2 A, suitable for high-current applications.
- Ultra-low on-resistance (RON) of 80 mΩ (typical) at 5 V IN, minimizing voltage drop.
- Ultra-low power consumption with ON state current (IQ) of 0.5 µA (typical) and OFF state current (ISD) of 10 nA (typical).
- Smart ON pin pulldown to prevent floating and unnecessary power loss.
- Adjustable turn-on time and output discharge rate using external components.
- Always-ON true Reverse Current Blocking (RCB) to prevent backflow of current.
- Active high enable logic (TPS22917) or active low enable logic (TPS22917L) for flexible control.
Applications
- Power management in portable electronics, such as smartphones and tablets.
- Battery-powered devices requiring low power consumption and high current handling.
- Industrial control systems needing reliable and efficient power switching.
- Automotive systems requiring robust and temperature-stable power management.
- Medical devices that demand low leakage and high reliability.
Q & A
- What is the input operating voltage range of the TPS22917DBVR?
The input operating voltage range is from 1 V to 5.5 V.
- What is the maximum continuous current rating of the TPS22917DBVR?
The maximum continuous current rating is 2 A.
- What is the typical on-resistance of the TPS22917DBVR at 5 V input?
The typical on-resistance is 80 mΩ at 5 V input.
- How does the Smart ON pin pulldown work?
The Smart ON pin pulldown keeps the ON pin from floating until system sequencing is complete and disconnects once the ON pin is deliberately driven high (≥VIH) to prevent unnecessary power loss.
- Can the turn-on time and output discharge rate be adjusted?
Yes, the turn-on time and output discharge rate can be adjusted using external components such as timing capacitors and resistors.
- What is the operating temperature range of the TPS22917DBVR?
The operating temperature range is from –40°C to 125°C.
- Does the TPS22917DBVR support reverse current blocking?
Yes, it features always-ON true Reverse Current Blocking (RCB) to prevent backflow of current.
- What is the package type and pin count of the TPS22917DBVR?
The device is packaged in a 6-pin SOT-23 (DBV) package.
- How does the QOD pin function?
The QOD pin allows the configuration of the discharge rate of VOUT after the switch is disabled, enabling adjustable output discharge and fall times.
- Is the TPS22917DBVR suitable for high-current applications?
Yes, it is suitable for high-current applications with a maximum continuous current rating of 2 A.
