MB39C006A 1 ch DC/DC Converter IC with PFM/PWM Synchronous Rectification Description The MB39C006A is a current mode type 1-channel DC/DC converter IC built-in switching FET, synchronous rectification, and down conversion support. The device is integrated with a switching FET, oscillator, error amplifier, PFM/PWM control circuit, reference voltage source, and POWERGOOD circuit. External inductor and decoupling capacitor are needed only for the external component. MB39C006A is small, achieve a highly effective DC/DC converter in the full load range, this is suitable as the built-in power supply for handheld equipment such as mobile phone/PDA, DVDs, and HDDs. Features High efficiency : 96 % (Max) Low current consumption : 30 A (at PFM) Output current (DC/DC) : 800 mA (Max) Input voltage range : 2.5 V to 5.5 V Operating frequency : 2.0/3.2 MHz (Typ) Built-in PWM operation fixed function No flyback diode needed Low dropout operation : For 100 % on duty Built-in high-precision reference voltage generator : 1.20 V 2 % Consumption current in shutdown mode : 1 A or less Built-in switching FET : P-ch MOS 0.3 (Typ) N-ch MOS 0.2 (Typ) High speed for input and load transient response in the current mode Over temperature protection Packaged in a compact package : SON10 Applications Flash ROMs MP3 players Electronic dictionary devices Surveillance cameras Portable GPS navigators Mobile phones etc. Cypress Semiconductor Corporation 198 Champion Court San Jose, CA 95134-1709 408-943-2600 Document Number: 002-09201 Rev. *C Revised June 26, 2017 MB39C006A Contents Description .................................................................................................................................................................... 1 Features ........................................................................................................................................................................ 1 Applications .................................................................................................................................................................. 1 Contents ........................................................................................................................................................................ 2 1. Pin Assignment ....................................................................................................................................................... 3 2. Pin Descriptions ...................................................................................................................................................... 3 3. I/O Pin Equivalent Circuit Diagram ........................................................................................................................ 4 4. Block Diagram ......................................................................................................................................................... 5 5. Function of Each Block .......................................................................................................................................... 6 6. Absolute Maximum Ratings ................................................................................................................................... 8 7. Recommended Operating Conditions ................................................................................................................... 9 8. Electrical Characteristics ..................................................................................................................................... 10 9. Test Circuit for Measuring Typical Operating Characteristics ......................................................................... 12 10. Application Notes ................................................................................................................................................ 13 10.1 Selection of components ............................................................................................................................... 13 10.2 Output voltage setting ................................................................................................................................... 13 10.3 About conversion efficiency .......................................................................................................................... 14 10.4 Power dissipation and heat considerations ................................................................................................... 15 10.5 Transient response ....................................................................................................................................... 15 10.6 Board layout, design example ....................................................................................................................... 15 11. Example of Standard Operation Characteristics .............................................................................................. 17 12. Application Circuit Examples ............................................................................................................................. 31 13. Usage Precautions .............................................................................................................................................. 33 14. Ordering Information .......................................................................................................................................... 33 15. RoHS Compliance Information .......................................................................................................................... 33 16. Package Dimension ............................................................................................................................................ 34 Document History ...................................................................................................................................................... 35 Sales, Solutions, and Legal Information .................................................................................................................. 36 Document Number: 002-09201 Rev. *C Page 2 of 36