MB39C007WQN-G-JN-ERE1

MB39C007 2 ch DC/DC Converter IC with PFM/PWM Synchronous Rectification Description The MB39C007 is a current mode type 2-channel DC/DC converter IC built-in voltage detection, synchronous rectifier, and down conversion support. The device is integrated with a switching FET, oscillator, error amplifier, PFM/PWM control circuit, reference voltage source, and voltage detection circuit. The external inductor and de-coupling capacitor are needed only for the external component.MB39C007 is small, achieve a highly effective DC/DC converter in the full load range. This device is suitable as the built-in power supply for handheld equipment such as mobile phones/PDA, DVDs, and HDDs. Features High efficiency: 96 (Max) Low current consumption: 30 ™A (At PFM/ch) Output current: 800 mA/ch (Max) Input voltage range: 2.5 V to 5.5 V Operating frequency: 2.0 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: 1.30 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: QFN-24 Applications Flash ROMs MP3 players Electronic dictionary devices Surveillance cameras Portable GPS navigators DVD drives IP phones Network hubs Mobile phones etc. Cypress Semiconductor Corporation Document Number: 002-08228 Rev. *C • 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600 Revised May 31, 2017 MB39C007 Contents Description ................................................................... 1 Features ....................................................................... 1 Applications ................................................................. 1 1. Pin Assignment ...................................................... 3 2. Pin Descriptions ..................................................... 4 3. I/O Pin Equivalent Circuit Diagram ....................... 5 4. Block Diagram ........................................................ 6 4.1 Current mode ...................................................... 7 5. Function Of Each Block ......................................... 8 6. Absolute Maximum Ratings ................................ 10 7. Recommended Operating Conditions ................ 11 8. Electrical Characteristics .................................... 12 9. Test Circuit for Measuring Typical Operating Characteristics ....................................................... 14 10. Application Notes ............................................... 15 10.1 Selection of Components ................................ 15 10.2 Output voltage setting ..................................... 16 10.3 About Conversion Efficiency ........................... 17 10.4 Power Dissipation and Heat Considerations ...................................................... 17 10.5 XPOR Threshold Voltage Setting [VPORH, VPORL] ................................................................. 18 10.6 Transient Response ........................................ 19 Document Number: 002-08228 Rev. *C 10.7 Board Layout, Design Example ...................... 19 11. Example Of Standard Operation Characteristics........................................................ 21 11.1 Characteristics CH1 ............................................. 21 11.2 Switching Waveform ....................................... 29 11.3 Output Waveforms at Sudden Load Changes 30 11.4 CTL Start-up Waveform .................................. 31 11.5 CTL Stop Waveform ....................................... 33 11.6 Current Limitation Waveform .......................... 33 11.7 Voltage Detection Waveform .......................... 34 11.8 Waveform of Dynamic Output Voltage Transition (VO1 1.8 V 2.5 V) ........................ 34 12. Application Circuit Examples ........................... 35 12.1 Application Circuit Example 1 ......................... 35 12.2 Application Circuit Example 2 ......................... 36 12.3 Application Circuit Example Components List 37 13. Usage Precautions ............................................. 38 14. Ordering Information ......................................... 38 15. RoHS Compliance Information ......................... 38 16. Package Dimension ........................................... 39 Document History ..................................................... 40 Sales, Solutions, and Legal Information ................. 41 Page 2 of 41 MB39C007 1. Pin Assignment (Top View) 0