TPS22925 3.6V, 3A, 9mΩ load switch with reverse current protection and optional quick output discharge | TI.com

TPS22925
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3.6V, 3A, 9mΩ load switch with reverse current protection and optional quick output discharge

 

Description

The TPS22925 product family consists of four devices: TPS22925B, TPS22925BN, TPS22925C, and TPS22925CN. Each device is a 9-mΩ, single-channel load switch with a controlled slew rate.

The devices contain an N–channel MOSFET that can operate over an input voltage range of 0.65 V to 3.6 V and can support a maximum continuous current of 3 A. This continuous current enables the devices to be used across multiple designs and end equipments. Each of the TPS22925 devices provides reverse current blocking when disabled allowing for power supply protection and power multiplexing capabilities.

The controlled rise time for the device greatly reduces inrush current caused by large bulk load capacitances, thereby reducing or eliminating power supply droop. When operating with an input voltage of 3.6 V, the TPS22925Bx devices feature a 97 µs rise time and the TPS22925Cx devices feature an 810 µs rise time.

The TPS22925 family of devices can help reduce the total solution size by offering an optional integrated, 150-Ω pull–down resistor for quick output discharge (QOD) when the switch is turned off. Each of the TPS22925 devices is available in a 0.9 mm × 1.4 mm, 0.5-mm pitch, 0.4-mm height 6–pin wafer chip scale package (WCSP) allowing for smaller, more integrated designs. The WCSP and 9 mΩ of on-resistance allow use in space constrained, battery powered applications. The device is characterized for operation over the free–air temperature range of –40°C to +105°C.

Features

  • Input Voltage Range: 0.65 V to 3.6 V
  • On-Resistance
    • RON = 9.2 mΩ at VIN = 3.6 V
    • RON = 9.2 mΩ at VIN = 1.8 V
    • RON = 10.2 mΩ at VIN = 1 V
    • RON = 13.1 mΩ at VIN = 0.65 V
  • 3-A Maximum Continuous Switch Current
  • Quiescent Current, IQ,VIN = 29 µA at VIN = 3.6 V
  • Low Control Input Threshold Enables 1.5-, 1.8-, 2.5-, or 3.3-V Logic
  • Controlled Slew Rate
    • tR = 97 µs at VIN = 3.6 V (TPS22925Bx)
    • tR = 810 µs at VIN = 3.6 V (TPS22925Cx)
  • Reverse Current Blocking (When Disabled)
  • Quick Output Discharge (QOD) (TPS22925B and TPS22925C only)
  • Wafer Chip Scale Package:
    • 0.9 mm × 1.4 mm, 0.5-mm Pitch, 0.4-mm Height
  • ESD Performance Tested per JESD 22
    • 2-kV HBM and 1-kV CDM

Parametrics

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Part number Order Number of channels (#) Vin (Min) (V) Vin (Max) (V) Imax (A) Ron (Typ) (mOhm) Shutdown current (ISD) (Typ) (uA) Quiescent current (Iq) (Typ) (uA) Soft start Rise time (Typ) (us) Features Operating temperature range (C)
TPS22925 Order now 1     0.65     3.6     3     10.3     0.5     60     Fixed Rise Time     61     Quick Output Discharge
Reverse Current Protection    
-40 to 105    
TPS22924B Order now 1     0.75     3.6     2     18.3     0.15     75     Fixed Rise Time     96     Quick Output Discharge     -40 to 85    
TPS22924C Order now 1     0.75     3.6     2     18.3     0.15     75     Fixed Rise Time     800     Quick Output Discharge     -40 to 85    
TPS22924D Order now 1     0.75     3.6     2     18.3     0.15     75     Fixed Rise Time     6200     Quick Output Discharge     -40 to 85    
TPS22963C Order now 1     1     5.5     3     13.8     0.76     38     Fixed Rise Time     890     Reverse Current Protection     -40 to 85    
TPS22964C Order now 1     1     5.5     3     13.8     0.76     38     Fixed Rise Time     890     Quick Output Discharge
Reverse Current Protection    
-40 to 85