NCP1421EVB: Up to 600 mA DC-DC Converter Evaluation Board

NCP1421 is a monolithic, micro-power, high-frequency, step-up switching converter IC designed for battery operated hand-held electronic products with up to 600 mA loading. It integrates a synchronous rectifier (Sync-Rect) to improve efficiency and to eliminate the external Schottky Diode. The NCP1421's high switching frequency (up to 1.2 MHz) allows for a low profile, small sized inductor and output capacitor to be used. When the device is disabled, the internal conduction path from the battery to the load is fully blocked, which isolates the load from the battery. This True-Cutoff function reduces the shutdown current to typically only 50nA. A Ring-Killer is also integrated to eliminate high-frequency ringing in discontinuous conduction mode. Finally, a Low-Battery Detector, Logic-Controlled Shutdown, Cycle-by Cycle Current Limiting and Thermal Shutdown provide value-added features for various battery operated applications. With all these functions ON, the quiescent supply current is typically only 8.5 µA. This device is available in the compact and low profile Micro8 package.

Evaluation/Development Tool Information
ProductStatusComplianceShort DescriptionParts Used
NCP1421EVBActiveUp to 600 mA DC-DC Converter Evaluation BoardNCP1421DMR2G
Technical Documents
TypeDocument TitleDocument ID/SizeRev
Eval Board: BOMNCP1421EVB BILL OF MATERIALSNCP1421EVB_BOM.REV1.PDF - 70.0 KB1
Eval Board: GerberNCP1421EVB GERBER LAYOUT FILES (ZIP FORMAT)NCP1421EVB_GERBER.REV1.ZIP - 180.0 KB1
Eval Board: SchematicNCP1421EVB SCHEMATICNCP1421EVB_SCHEMATIC.REV1.PDF - 126.0 KB1
Eval Board: Test ProcedureNCP1421EVB TEST PROCEDURENCP1421EVB_TEST_PROCEDURE.REV1.PDF - 115.0 KB1
VideoUp to 600 mA DC-DC Converter Evaluation Board - NCP1421EVBWVD17570/D
NCP1421EVB BOM NCP1421EVB
NCP1421EVB GERBER NCP1421EVB
NCP1421EVB SCHEMATIC NCP1421EVB
NCP1421EVB TEST PROCEDURE NCP1421EVB
NCP1421EVB