SP6669

SP6669 800mA 1.5MHz Synchronous Step Down Converter July 26, 2021 GENERAL DESCRIPTION The SP6669 is a synchronous current mode PWM step down (buck) converter capable of delivering up to 800mA of current. It features a pulse skip mode (PSM) for light load efficiency and a LDO mode for 100% duty cycle. With a 2.5V to 6.0V input voltage range and a 1.5MHz switching frequency, the SP6669 allows the use of small surface mount inductors and capacitors ideal for battery powered portable applications. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. Low output voltages are easily supported with the 0.6V feedback reference voltage. Built-in over temperature and output over voltage lock-out protections insure safe operations under abnormal operating conditions. The SP6669 is offered in a RoHS compliant, “green”/halogen free 5-pin SOT23 package. TYPICAL APPLICATION DIAGRAM Rev. 5.0.0 APPLICATIONS Portable Equipment Battery Operated Equipment Audio-Video Equipment Networking & Telecom Equipment FEATURES Guaranteed 800mA Output Current − Input Voltage: 2.5V to 6.0V 1.5MHz PWM Current Mode Control − 100% Duty Cycle LDO Mode Operations − Achieves 97% Efficiency 0.6V 2% Accurate Reference Excellent Line/Load Transient Response 18µA Quiescent Current Over Temperature Protection RoHS Compliant “Green”/Halogen Free 5-Pin SOT23 Package Fig. 1: SP6669 Application Diagram (Adj. version shown) 1 SP6669 800mA 1.5MH...