SMALL OUTLINE, HEAT SINK/SLUG, VERY VERY THIN PROFILE
Seated Height-Max:
0.8 mm
Supply Current-Max (Isup):
0.004 mA
Surface Mount:
YES
Switcher Configuration:
BUCK-BOOST
Switching Frequency-Max:
2800 kHz
Terminal Form:
NO LEAD
Terminal Pitch:
0.5 mm
Terminal Position:
DUAL
Width:
3 mm
RTQ1741AGQW Frequently Asked Questions (FAQs)
Richtek provides a recommended PCB layout in their application note ANI03, which includes guidelines for thermal vias, copper pours, and component placement to minimize thermal resistance and ensure reliable operation.
Richtek recommends following the power-up sequence outlined in the datasheet, which includes applying a stable input voltage, waiting for the internal voltage regulator to settle, and then configuring the device through the I2C interface.
While the datasheet doesn't specify a maximum capacitance, Richtek recommends keeping the output capacitance below 1uF to ensure stability and prevent oscillations. Larger capacitances may require additional compensation or stabilization techniques.
The RTQ1741AGQW is rated for operation up to 125°C, but Richtek recommends derating the output current and voltage to ensure reliable operation at high temperatures. Consult the datasheet and application notes for specific guidelines.
Richtek provides a troubleshooting guide in their application note ANI05, which covers common issues such as bus contention, clock stretching, and data corruption. Additionally, using an I2C analyzer or logic analyzer can help identify and debug communication issues.
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RTQ1741AGQW Overview
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