BD90541MUV-CE2 ROHM

Secondary power supply series for automotive 2.6V to 5.5V, 4A, 0.3MHz to 2.4MHz Synchronous Step-Down Converter BD90541MUV-C General Description Key Specifications The BD90541MUV-C is a synchronous step-down Operating Temperature Range(Ta): -40C to +125C converter which operates in current mode. It can operate Input Voltage Range: 2.6V to 5.5V with maximum frequency of 2.4 MHz, and can downsize Output Current: 4.0A(Max) external parts such as inductor. It can supply a maximum Reference Voltage Accuracy: 1.5 % output current of 4A with built-in Pch and Nch output Output Voltage Range: 0.6V to 5.0V MOSFET. Output voltage and oscillation frequency can Switching Frequency: 0.3MHz to 2.4MHz be adjusted by external resistors and can also be synchronized with an external clock. Package W(Typ) x D(Typ) x H(Max) 4.00mm x 4.00mm x 1.00mm Features (Note 1) AEC-Q100 Qualified Up to 2.4MHz movement Excellent Load Response by Current Mode Control Built-in Pch/Nch Output MOSFET. Frequency Synchronization with External Clock. Output Error Monitor Terminal (PGOOD Terminal) Adjustable Output Voltage and Oscillation Frequency by External Resistors. Built-in Self-Reset Type Overcurrent Protection. Built-in Output Overvoltage/Short Circuit Detection. VQFN20SV4040 Built-in Temperature Protection (TSD) and UVLO. (Note 1: Grade 1) Applications Automotive Battery-Powered Supplies (Cluster Panels, Car Multimedia) Industrial / Consumer Supplies Other electronic equipment Typical Application Circuit Product structure : Silicon monolithic integrated circuit This product has no designed protection against radioactive rays www.rohm.co.jp TSZ02201-0J3J0AL01140-1-2 2016 ROHM Co., Ltd. All rights reserved. 1/36 TSZ2211114001 26.Apr.2016 Rev.001 VIN PGND EN PGND CTL1 PGOOD CTL2 GND COMP SYNCDatasheetDatasheet BD90541MUV-C Contents General Description ........................................................................................................................................................................ 1 Features .......................................................................................................................................................................................... 1 Applications .................................................................................................................................................................................... 1 Key Specifications .......................................................................................................................................................................... 1 Package .................................................................................................................................................................................. 1 Typical Application Circuit ............................................................................................................................................................... 1 Contents ......................................................................................................................................................................................... 2 Pin Configurations .......................................................................................................................................................................... 3 Pin Descriptions .............................................................................................................................................................................. 3 Block Diagram ................................................................................................................................................................................ 4 Description of Blocks ...................................................................................................................................................................... 4 Absolute Maximum Ratings ............................................................................................................................................................ 6 Thermal Resistance ........................................................................................................................................................................ 6 Recommended Operating Conditions ............................................................................................................................................. 7 Electrical Characteristics ................................................................................................................................................................. 8 Typical Performance Curves ........................................................................................................................................................... 9 Description of Operation and Timing Chart ................................................................................................................................... 14 Selection of Components Externally Connected ........................................................................................................................... 17 Recommended Parts Manufacturer List........................................................................................................................................ 23 Application Examples 1................................................................................................................................................................. 24 Application Examples 2................................................................................................................................................................. 26 Notes on the PCB Layout ............................................................................................................................................................. 28 Power Dissipation ......................................................................................................................................................................... 30 I/O Equivalent Circuits .................................................................................................................................................................. 31 Operational Notes ......................................................................................................................................................................... 32 Ordering Information ..................................................................................................................................................................... 34 Marking Diagrams ......................................................................................................................................................................... 34 Physical Dimension, Tape and Reel Information ........................................................................................................................... 35 Revision History ............................................................................................................................................................................ 36 www.rohm.co.jp TSZ02201-0J3J0AL01140-1-2 2016 ROHM Co., Ltd. All rights reserved. 2/36 TSZ22111 15 001 26.Apr.2016 Rev.001