Panasonic EVB-NN30312A User Manual

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Panasonic EVB-NN30312A User Manual Manual pdf 3 page image

314EVB-NN30312AUser’s Guidefor Evaluation BoardRevisedTotal Pages PageTentativeIndustrial Devices Company, Panasonic CorporationRegulationsNo. 312A805E2012-04-17Table 1. Input Voltage and Output Current Summary1 IntroductionThis user’s guide contains background information for theNN30312A : 10A Synchronous DCDC Step Down Regulator with Integrated Power MOSFETas well as support documentation for the NN30312A Evaluation Board (EVB-NN30312A). Also included are the schematic, the test set-up, the bill of materials and the Board Layout for the Evaluation Board.1.1 OverviewNN30312A is a synchronous DCDC Step Down Regulator (1-ch) with integrated power MOSFETs, which employs hysteretic controlsystem. By this system, when load current changes suddenly, it responds at high speed and minimizes the changes of output voltage.Since it is possible to use capacitors with small capacitance and it is unnecessary to add external parts for system phase compensation,this IC realizes downsizing of set and reducing in the number of external parts.Output voltage is adjustable by user. Maximum current is 10 A.1.2 Features—High-speed response DCDC Step Down Regulator circuit that employs the hysteretic control system—Integrated Two 9mΩ (Typ) MOSFETs for high efficiency—Switchable FCCM (continuous) / SKIP (discontinuous) mode—Input Voltage Range: 4.5V (TBD)~ 30V (TBD)—Output Voltage Range: 0.75V (TBD) ~ 5.5V (TBD)—Built-in 0.6V±1% (TBD) Reference Voltage—Selectable Switching Frequency 250kHz / 750kHz / 1250kHz—Adjustable Soft Start—Low Operating and Standby Quiescent Current—Indication for normal Output Voltage to PGOOD pin—Built-in Under Voltage Lockout (UVLO), Thermal Shut Down (TSD), Output Over-Voltage Detection (OVD), Output Over-CurrentProtection (OCP), Short-Circuit Protection (SCP) functionsInput voltage and output current range for the evaluation Board are given in Table 1.1.3 Typical Applications—High Current Distributed Power Systems such as HDDs (Hard Disk Drives), SSDs (Solid State Drives), PCs, Game consoles, Severs,Security Cameras, Network TVs, Home Appliances, OA Equipment etc.1.4 Package— 40pin Plastic Quad Flat Non-leaded Package Heat Slug Down (QFN Type)(Size : 6 × 6 mm, 0.5 mm pitch)1.5 Type—Multichip ICEvaluation Board Input Voltage range Output Current RangeEVB-NN30312A PVIN, AVIN = 4.5V(TBD) to 30V (TBD) *1V-EN = 1.5V to 5V 0A to 10A*1 : PVIN pin and AVIN pin are normally connected on Evaluation Board by 0 ohm resister (R-AVIN).Note: The parameters above is subject to change without notice for improvement.