- Datasheet Download Datasheet
- Stock & Prices $ Price & Stock for RT9728BLGQW
- Part Number RT9728BLGQW
- Manufacturer RICHTEK
- Pin Count 7
- Part Category Integrated Circuit
- Package Category Small Outline No-lead
- Footprint Name Small Outline No-lead - 6L DFN 2x2_
- Released Date Oct 23, 2020
- Last Modified Date Mar 7, 2023 4:10 PM UTC
- Pinout / Pin List Click Here (Member Only)
RT9728BLGQW Details
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Manufacturer Part Number:
RT9728BLGQW
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Pbfree Code:
Yes
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Rohs Code:
Yes
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Part Life Cycle Code:
Active
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Package Description:
WDFN-6
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ECCN Code:
EAR99
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HTS Code:
8542.39.00.60
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Manufacturer:
Richtek Technology Corp
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YTEOL:
7
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Additional Feature:
CURRENT LIMIT: 1.295A; THERMAL SHUTDOWN:160C; ADJUSTABLE CURRENT LIMIT
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Adjustable Threshold:
YES
RT9728BLGQW Frequently Asked Questions (FAQs)
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Richtek provides a recommended PCB layout in their application note AND9231, which includes guidelines for thermal vias, copper pours, and component placement to minimize thermal resistance and ensure reliable operation.
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The output capacitor selection depends on the output voltage, output current, and desired ripple voltage. Richtek recommends using a low-ESR capacitor with a minimum capacitance of 10uF and a voltage rating of at least 1.5 times the output voltage. A X5R or X7R dielectric capacitor is recommended for its low temperature coefficient and high reliability.
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Although the datasheet specifies a maximum input voltage of 18V, Richtek recommends limiting the input voltage to 15V to ensure reliable operation and prevent damage to the internal components.
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The RT9728BLGQW has a built-in overcurrent protection feature that can be enabled by connecting a resistor between the OCP pin and the GND pin. The value of the resistor determines the overcurrent threshold. Richtek provides a calculation formula for the resistor value in their datasheet.
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Richtek recommends using a ceramic capacitor with a value of 1uF to 10uF and a voltage rating of at least 1.5 times the input voltage. A X5R or X7R dielectric capacitor is recommended for its low temperature coefficient and high reliability.
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