TPS22949ADRGR Semiconductors - ICs by Texas Instruments

LOAD SWITCH CURRENT LIMITED 8SON

Electronic & Electrical Components>Semiconductors - ICs>Power Management
Status: Unknown
Series: -
RoHS: Unknown
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The TPS22949 and TPS22949A are devices that provide protection to systems and loads in highcurrent 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. The switch is controlled by an on/off input (EN1), which can interface directly with low-voltage control signals. When the switch current reaches the maximum limit, the TPS22949/TPS22949A operates in a constant-current mode to prohibit excessive currents from causing damage. If the constant current condition persists after 12 ms, these devices shut off the switch and pull the fault signal pin (OC) low. The TPS22949/TPS22949A has an auto-restart feature that turns the switch on again after 70 ms if the EN1 pin is still active. The output of the current limiter is internally connected to an RF low-dropout (LDO) regulator that offers good AC performance with very low ground current, good power supply rejection ratio (PSRR), low noise, fast start-up, and excellent line and load transient response. The output of the regulator is stable with ceramic capacitors. This LDO uses a precision voltage reference and feedback loop to achieve overall accuracy of 2% over all load, line, process, and temperature variations.

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Specifications

Power Load Switch Type High Side
Input Voltage 4.5V
Current Limit 150mA
On State Resistance 0.4ohm
Distribution Switch Case Style SON
No. of Pins 8Pins
Thermal Protection Yes
On / Enable Input Polarity Active High
No. of Outputs 2Outputs
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 2 - 1 year
SVHC No SVHC (27-Jun-2018)
Base Number 22949
Internal Switch No
Operating Temperature Range -40°C to +85°C
Power Dissipation Pd 1.525W
Termination Type Surface Mount Device

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The TPS22949ADRGR is listed under Electronic & Electrical Components > Semiconductors - ICs > Power Management.

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This part has not been flagged as RoHS Compliant.

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