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TPS22949 Datasheet PDF - Texas Instruments

Part NameDescriptionManufacturer
TPS22949 CURRENT-LIMITED LOAD SWITCH WITH LOW NOISE REGULATION CAPABILITY TI
Texas Instruments TI
Other PDF  no available.
TPS22949 Datasheet PDF : TPS22949 pdf   
TPS22949A image

DESCRIPTION
The TPS22949 and TPS22949A are devices that provides protection to systems and loads in high-current conditions. The device contains a 500-mΩ current-limited P-channel MOSFET that can operate over an input voltage range of 1.62 V to 4.5 V as well as a low-dropout (LDO) regulator with a fixed output voltage of 1.8 V.

FEATURES
• Integrated Current Limiter
    – Input Voltage Range: 1.62 V to 4.5 V
    – Low ON-Resistance
        – rON = 300-mΩ at VIN = 4.5 V
        – rON = 350-mΩ at VIN = 3.3 V
        – rON = 400-mΩ at VIN = 2.5 V
        – rON = 600-mΩ at VIN = 1.8 V
    – Integrated 100-mA Minimum Current Limit
    – Undervoltage Lockout
    – Fast-Current Limit Response Time
    – Integrated Fault Blanking and Auto Restart
• Stable Without Current Limiter Output Capacitor (TPS22949A Only)
• Integrated Low-Noise RF LDO
    – Input Voltage Range: 1.62 V to 4.5 V
    – Low Noise: 50 μVrms (10 Hz to 100 kHz)
    – 80-dB VIN PSRR (10 Hz to 10 kHz)
    – Fast Start-Up Time: 130 μs
    – Low Dropout 100 mV at Iload =100 mA
    – Integrated Output Discharge
    – Stable With 2.2-μF Output Capacitor
• 1.8-V Compatible Control Input Threshold
• ESD Performance Tested Per JESD 22
    – 3500-V Human-Body Model (A114-B, Class II)
    – 1000-V Charged-Device Model (C101)
• Tiny 8-Terminal YZP Package (1.9 mm × 0.9 mm, 0.5-mm Pitch, 0.5-mm Height) and SON-8 (DRG) 3.0 mm × 3.0 mm

APPLICATIONS
• Fingerprint Module Protection
• Portable Consumer Electronics
• Smart Phone
• Notebooks
• Control Access Systems

 

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