Texas Instruments

Category: Power Management ICs

The TPS22971 is a space-saving single-channel load switch with controlled and adjustable Turn-ON slew rate and an integrated Power Good indicator. The device contains an N-channel MOSFET that can operate over a low input voltage range of 0.65 V to 3.6 V and can support a maximum continuous current of 3 A. A low on-resistance of 6.7-mΩ minimizes the power loss and voltage drop across the load switch. The switch is controlled by an on and off input (ON), which is capable of interfacing directly with low-voltage control signals.

By default, the TPS22971 has a Fast Turn-ON time to minimize system startup and wait time. The Adjustable Slew Rate can also be reduced to limit inrush current. A Power Good (PG) signal internally monitors the gate threshold and indicates when the switch is fully on. When the switch is disabled, a 150-Ω on-chip resistor quickly discharges the output to ground and keeps it from floating.

The TPS22971 is available in an ultra-small, space saving 8-pin WCSP package and is characterized for operation over the free-air temperature range of –40°C to 105°C and integrates thermal shutdown to turn off in case of overheating.

Features:

  • Input Voltage Range (VIN): 0.65 V to 3.6 V
  • On-Resistance
    • RON = 6.7 mΩ (typical) at VIN ≥ 1.8 V
    • RON = 7.2 mΩ (typical) at VIN = 1.05 V
    • RON = 8.9 mΩ (typical) at VIN = 0.65 V
  • Maximum Continuous Switch Current (IMAX): 3 A
  • ON State (IQ): 30 µA (typical) at 3.6 VIN
  • OFF State (ISD): 1.1 µA (typical) at 3.6 VIN
  • Adjustable Slew Rate through CT Pin
    • Fast Turn-ON ≤ 65 µs at VIN = 1 V
  • Power Good (PG) Indicator After Switch Turn ON
  • Low Threshold Enable (ON) of 0.9 V (VIH) supports use of low voltage control logic
  • Thermal Shutdown (TSD)
  • Quick Output Discharge (QOD): 150-Ω (typical)

$0.22 - $15.92
Distributor SKU Stock MOQ 1 10 50 100 1000 10000 Purchase
DigiKey 296-48999-6-ND 13887 $0.42 $0.29 $0.26 $0.23 $0.19 $0.17 Buy
Ameya360 TPS22971YZPR 21000 Buy
Arrow North American Components TPS22971YZPR 1823 1 $0.74 $0.74 $0.27 $0.73 $0.72 $0.21 Buy
AVNET Europe TPS22971YZPR 3000 * $0.29 Buy
AVNET Express TPS22971YZPR 3000 $0.22 Buy
Mouser Electronics 595-TPS22971YZPR 11117 1 $0.41 $0.34 $0.34 $0.26 $0.19 $0.16 Buy
Perceptive TPS22971YZPR 48300 1+ Buy
Texas Instruments TPS22971YZPR 4795 1 $0.36 $0.36 $0.36 $0.24 $0.13 $0.13 Buy
Verical Marketplace TPS22971YZPR 1823 40 $0.00 $0.00 $0.52 $0.38 $0.28 $0.22 Buy
Win Source TPS22971YZPR 6030 12 $13.26 $10.97 $10.97 $10.97 $10.97 Buy

Parts in family

Technical Specifications

Lead Free Status No
ROHS Compliance Compliant
Approx. Price (US$) 0.28 | 1ku
HBM ESD(kV) 2
Imax(A) 3
Number of Channels(#) 1
Operating Temperature Range(C) -40 to 85
Output Rise Time @ 1.8V(Typ)(us) 27
Package Group DSBGA
Package Size mm2
Quiescent Current (Iq)(Max)(uA) 90
Quiescent Current (Iq)(Typ)(uA) 35
Rating Catalog
Rise Time(Typ)(us) 29
Ron @1.8V(Typ)(mOhm) 7.5
Ron(Typ)(mOhm) 7.5
Shutdown Current (ISD)(Typ)(uA) 1
Special Features Adjustable Rise Time,Power Good,Quick Output Discharge,Thermal Shutdown
Vin(Max)(V) 3.6
Vin(Min)(V) 0.65