The Texas Instruments TPS71709QDSERQ1 is a low-dropout (LDO) voltage regulator that provides a fixed output voltage of 0.9 V. It has a maximum output current of 150 mA and can operate with an input voltage range of 2.1 V to 6.5 V. The TPS71709QDSERQ1 is available in a 6-pin WSON package and is AEC-Q100 qualified for automotive applications.

Features

Fixed output voltage of 0.9 V Maximum output current of 150 mA Input voltage range of 2.1 V to 6.5 V Low dropout voltage: 300 mV @ 150 mA High PSRR: 70 dB @ 100 Hz Enable input for power control Current limit protection Over temperature protection Reverse polarity protection Under voltage lockout (UVLO) protection AEC-Q100 qualified for automotive applications Applications

The TPS71709QDSERQ1 is suitable for a wide range of applications, including:

Automotive electronics Industrial electronics Consumer electronics Medical devices Battery-powered devices Point-of-sale systems Security systems Networking equipment Telecommunications equipment Benefits

The TPS71709QDSERQ1 offers a number of benefits, including:

High efficiency: The TPS71709QDSERQ1 has a high efficiency of up to 95%, which helps to extend battery life in portable applications. Low power consumption: The TPS71709QDSERQ1 has a low quiescent current of 80 µA, which helps to reduce power consumption in standby mode. Small size and low weight: The TPS71709QDSERQ1 is available in a small 6-pin WSON package, which makes it ideal for space-constrained applications. Wide operating temperature range: The TPS71709QDSERQ1 has a wide operating temperature range of -40°C to 125°C, which makes it suitable for use in a variety of environments. Design Considerations

When using the TPS71709QDSERQ1, it is important to consider the following:

Input voltage range: The input voltage range of the TPS71709QDSERQ1 is 2.1 V to 6.5 V. Care should be taken to ensure that the input voltage does not exceed this range, as this could damage the device. Output capacitor: The TPS71709QDSERQ1 requires an output capacitor of at least 10 µF to maintain stability. The capacitor should be placed as close to the output pin of the device as possible. Enable input: The enable input of the TPS71709QDSERQ1 can be used to control the power to the device. When the enable input is high, the device is enabled. When the enable input is low, the device is disabled. Current limit protection: The TPS71709QDSERQ1 has a current limit protection feature that protects the device from overload conditions. If the output current exceeds the current limit, the device will reduce the output voltage until the current falls below the limit. Over temperature protection: The TPS71709QDSERQ1 has an over temperature protection feature that protects the device from thermal overload. If the temperature of the device exceeds the safe operating temperature, the device will shut down until the temperature cools down. Reverse polarity protection: The TPS71709QDSERQ1 has a reverse polarity protection feature that protects the device from damage if the input voltage is connected backwards. Under voltage lockout (UVLO) protection: The TPS71709QDSERQ1 has an under voltage lockout (UVLO) protection feature that prevents the device from operating if the input voltage is below the minimum operating voltage. Conclusion

The Texas Instruments TPS71709QDSERQ1 is a high-performance LDO voltage regulator that is suitable for a wide range of applications. It offers a number of benefits, including high efficiency, low power consumption, small size, low weight, and a wide operating temperature range.