TPS22965 Load Switch: Datasheet, Pinout, Typical Application Circuit

TPS22965 Pinout

The TPS22965  is a single channel load switch that provides configurable rise time to minimize inrush current. The device contains an N-channel MOSFET that can operate over an input voltage range of 0.8 V to 5.7 V and can support a maximum continuous current of 6 A. The switch  is controlled by an on/off input (ON)， which is capable of interfacing directly with low-voltage control signals. In the TPS22965, a 225-0 on-chip load resistor is added for quick output discharge when the switch is turned off The TPS22965  is available in a small, space-saving 2.00 mm x 2.00 mm 8-pin SON package (DSG) with an integrated thermal pad allowing for high power dissipation. The device is characterized for operation over the free-air temperature range of - -40  °C to 105  °C.

• Integrated Single Channel Load Switch

• Input Voltage Range: 0.7  V to 5  .7 V

• RON Resistance

• RON = 14  mΩ at  VIN  = 5  V (VBIAS = 5  V)

• 5-A Maximum Continuous Switch Current

• Adjustable Undervoltage Lockout Threshold (UVLO)

• Adjustable Voltage Supervisor with Power Good (PG) Indicator

• Adjustable Output Slew Rate Control

•  Enhanced Quick Output Discharge Remains Active after Power is Removed (TPS22954 Only)

• 15 Ω (Typ) Discharges 100 µF Within 10  ms

• Reverse Current Blocking when Disabled (TPS22953 Only)

• Automatic Restart after Supervisor Fault Detection When Enabled

• Thermal Shutdown

• Low Quiescent Current ≤ 50 µA

• SON 10  -pin Package with Thermal Pad

• ESD Performance Tested Per JESD 22 

• 2-kV HBM and 750 -V CDM

●UltrabookTM

●Notebooks/Netbooks

●Tablet PC

●Consumer Electronics

●Set-top Boxes/Residential Gateways

●Telecom Systems

●Solid State Drives (SSDs)

The TPS22965 device is a single channel, 6-A load switch in an 8-pin SON package. To reduce the voltage drop in high current rails, the device implements an ultra-low resistance N-channel MOSFET. The device has a programmable slew rate for applications that require specific rise-time. The device has a very low leakage current during off state. This prevents downstream circuits from pulling high standby current from the supply. Integrated control logic, driver, power supply, and output discharge FETeliminates the need for any external components, which reduces solution size and bill of materials (BOM) count. The functional block diagram is shown below.

TPS22965 Functional Block Diagram

This application demonstrates how the TPS22965 can be used to power downstream modules.

TPS22965-Powering a Downstream Module