LM2267x/LM22680 Simple Switcher® Series

LM2267X/LM22680 Simple Switcher Series

The LM2267x/LM22680 Simple Switcher Step-Down Regulator Series is the next generation of highly popular LM267x Simple Switcher Regulators. Numerous enhancements and improvements have been added such as an input range down to 4.5V, tighter output accuracy, adjustable switching frequency, a precision enable, and thermally enhanced green packages.

These new Simple Switcher Regulators together with WEBENCH Power Designer provide fast and easy design-in while delivering performance and flexibility to meet your design and application requirements.

Features

• Wide Input Voltage Range from 4.5V - 42V
• Load Currents from 0.5A – 5A
• Adjustable and Fixed Output Voltages
• Adjustable and Fixed Switching Frequencies (up to 1MHz) for optimal size and efficiency
• External Soft Start
• Precision Enable
• Internally compensated voltage mode control minimizes external component count
• V_out accurate within 2.0%, worst case
• Adjustable current limit
• Frequency Sync up to 1MHz
• PSOP-8 and TO263-7 THIN packages

Product Information

Product: Datasheet, Samples, Eval boards	Eval Boards AppNotes	VIn (V)	IOut (A)	Adj Cur Limit	Soft Start	Enable	Adj. Freq.	Package
								THIN TO-263	PSOP-8
LM22674	AN-1895	4.5-42	0.5			•			•
LM22671	AN-1895	4.5-42	0.5		•	•	•		•
LM22675	AN-1896	4.5-42	1.0			•			•
LM22672	AN-1896	4.5-42	1.0		•	•	•		•
LM22680		4.5-42	2.0			•	•		•
LM22670	AN-1885 AN-1888	4.5-42	3.0			•	•	•	•
LM22673	AN-1894	4.5-42	3.0	•	•			•	•
LM22676	AN-1885	4.5-42	3.0			•		•	•
LM22677	AN-1892	4.5-42	5.0			•	•	•
LM22678	AN-1892	4.5-42	5.0			•		•
LM22679	AN-1891	4.5-42	5.0	•	•			•

Note: All parts available with either fixed V_Out of 5.0V or adjustable V_Out of 1.285 - 30V