Texas Instruments TPS2291L02 Load Switch

Texas Instruments TPS2291L02 Load Switch is a compact, low I_Q, low R_ON load switch with controlled turn-on time. This switch is controlled by an on and off input (EN), which is capable of interfacing directly with low-voltage control signals. The TPS2291L02 switch features an N-channel MOSFET that operates over an input voltage range of 1.05V to 5.5V and supports a maximum continuous current of 2A. This load switch operates at an input voltage of 1.05V_IN to 5.5V_IN, making the device a versatile design for various voltage rails. The TPS2291L02 switch is available in a small, space-saving 0.616mm x 0.616mm, 0.35mm pitch, 0.35mm height 4-pin Wafer-Chip-Scale (DSBGA) package (YCJ). This load switch operates over the free-air temperature range of -40°C to 105°C. The TPS2291L02 device is ideal for notebook PCs, tablets, wearable technology, digital cameras, gaming consoles, and solid-state drives.

Features

Integrated single-channel load switch
1.05V to 5.5V input operating voltage range (V_IN)
Low On-Resistance (R_ON):
- R_ON = 18.6mΩ (typical) at V_IN ≥ 3.3V
- R_ON = 20.1mΩ (typical) at V_IN = 1.8V
- R_ON = 23.3mΩ (typical) at V_IN = 1.05V
Low power consumption:
- 90nA (typical) ON state (I_Q)
- 1.6nA (typical) OFF state (ISD)
2A maximum continuous current
Controlled turn-on time of 130μs

235Ω (typical) Quick Output Discharge (QOD)
Thermal shutdown for self-protection
Smart EN pin pulldown (R_PD,EN):
- 25nA (maximum) EN ≥ V_IH (I_ON)
- 530kΩ (typical) EN ≤ V_IL (R_PD,ON)
Ultra small wafer chip scale package with 0.616mm x 0.616mm, 0.35mm pitch, and 0.35mm height DSBGA (YCJ)
ESD performance tested per JESD 22 2kV HBM and 1kV CDM