TPS22949YZPR

illustrate

Yes, the TPS22949 and TPS22949A devices provide protection against the system and load under high current conditions. The device contains a 500 meter Current-limited P-channel MOSFETs that operate from an input voltage range of 1.62 V to 4.5 volts and a low dropout 1.8 fixed output voltage (LDO) regulator five

The switch is directly controlled by an on/off input (EN1), which is the interface low voltage signal. When the switching current reaches its maximum limit, the TPS22949/TPS22949A operate in constant current mode, prohibiting excessive damage current. If the current condition persists after 12 milliseconds, these devices turn off the switch and unplug the fault signal pin (overclocking) low.

characteristic

• Integrated current limiter
  • Input voltage range: 1.62 V to 4.5 V
  • Low on-resistance
    _targetR ON = 300 meters _{In V IN}= 4.5V
    _targetR ON = 350 meters _{In V IN}= 3.3 volts
    _targetR ON = 400 meters _{In V IN}= 2.5 volts
    _targetR ON = 600 meters _{In V IN}= 1.8 volts
  • Integrated minimum current limit of 100 - mA
  • Undervoltage lockout
  • Fast current limit response time
  • Integrated fault blanking and automatic restart
• Stable, No Current Limiter Output Capacitor (TPS22949A only)
• Integrated low noise RF LDO
  • Input voltage range: 1.62 V to 4.5 V
  • Low noise: 50μVrms (10 Hz to 100 kHz)
  • 80 dB V IN_targetPower supply rejection ratio (10 Hz to 10 kHz)
  • Fast start-up time: 130 microseconds
  • Low dropout voltage of 100 mV at I = 100 mA_load
  • Integrated output discharge
  • The output is stable with a capacitor of 2.2μF
• 1.8-V compatible control input threshold
• 22 ESD performance tests per JESD
  • 3500-V man, mannequin
    (A114 - Type B, II)
  • Model of a live device at 1000-V
    （C101）