Details

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BUY BCM35143KQLEG https://www.utsource.net/itm/p/8151705.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VDD	Operating	2.7		5.5	V
Output Current	IO	Continuous		1.5		A
Switching Frequency	fSW			600		kHz
Efficiency	η	@ 3.3V, 1A		90		%
Quiescent Current	IQ			40		μA
Shutdown Current	ISD			1		μA
Thermal Shutdown	TSD			160		°C
Operating Temperature	TOPR	Storage	-40		85	°C

Instructions for BCM35143KQLEG

1. Power Supply Connection:

   • Connect the VDD pin to a power supply within the operating range of 2.7V to 5.5V.

2. Output Configuration:

   • Ensure that the load connected to the output does not exceed the continuous output current rating of 1.5A.

3. Switching Frequency Adjustment:

   • The device operates at a typical switching frequency of 600kHz. No external components are required for this setting.

4. Efficiency Optimization:

   • For optimal efficiency (up to 90% at 3.3V and 1A), ensure proper PCB layout with short traces and adequate copper area for heat dissipation.

5. Quiescent and Shutdown Current:

   • The quiescent current is typically 40μA, and the shutdown current is as low as 1μA, making it suitable for battery-powered applications.

6. Thermal Management:

   • Monitor the junction temperature to avoid exceeding 160°C, which can trigger thermal shutdown.

7. Temperature Range:

   • Operate the device within the temperature range of -40°C to 85°C for reliable performance.

8. Installation and Handling:

   • Handle the component with care to avoid damage from electrostatic discharge (ESD) and follow standard surface mount technology (SMT) assembly procedures.

(For reference only)