SMALL OUTLINE, HEAT SINK/SLUG, EXTREMELY THIN PROFILE
Peak Reflow Temperature (Cel):
260
Screening Level:
AEC-Q100
Seated Height-Max:
0.8 mm
Supply Voltage-Max (Vsup):
65 V
Supply Voltage-Min (Vsup):
3 V
Supply Voltage-Nom (Vsup):
12 V
Surface Mount:
YES
Technology:
BICMOS
Terminal Finish:
Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form:
NO LEAD
Terminal Pitch:
0.5 mm
Terminal Position:
DUAL
Threshold Voltage-Nom:
+3.4V
Width:
3 mm
LM74721QDRRRQ1 Frequently Asked Questions (FAQs)
Texas Instruments provides a recommended PCB layout in the datasheet, but it's essential to follow good thermal design practices, such as using a solid ground plane, placing thermal vias under the device, and keeping the thermal path short and direct to the heat sink or chassis.
To ensure reliable operation in high-temperature environments, follow the recommended operating conditions, use a suitable heat sink, and consider derating the device's power dissipation according to the temperature derating curve provided in the datasheet.
Using a different input capacitor value than recommended may affect the device's stability, output voltage ripple, and transient response. It's essential to follow the recommended input capacitor value and type to ensure optimal performance and stability.
While the LM74721QDRRRQ1 is designed for high-current applications, it's crucial to ensure that the device is properly heatsinked and that the maximum current rating is not exceeded. Additionally, consider using a device with a higher current rating or paralleling multiple devices to achieve the required current.
To troubleshoot issues with the device's output voltage regulation, check the input voltage, output voltage, and feedback resistors. Ensure that the feedback resistors are correctly connected and that the output voltage is within the specified range. Also, verify that the device is properly heatsinked and that the thermal shutdown is not triggered.
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LM74721QDRRRQ1 Overview
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
