MB39C022NPN-G-ERE1 Infineon

MB39C022G/J/L/N Buck DC/DC Converter + Low Noise LDO Description The MB39C022 is a 2 channels power supply IC. It consists of one channel Buck DC/DC Converter and one channel LDO regulator. The DC/DC converter has fast transient response with current mode control topology. Moreover, the integrated LDO provides an auxiliary output supply for noise sensitive circuit. Features Power supply voltage range : 2.5 V to 5.5 V For Buck DC/DC included SW FET (CH1) : output 0.8 V to 4.5 V, 600 mA Max DC For LDO (CH2) : output 3.30 V (MB39C022G) 300 mA Max DC : output 2.85 V (MB39C022J) 300 mA Max DC : output 1.80 V (MB39C022L) 300 mA Max DC : output 1.20 V (MB39C022N) 300 mA Max DC Error amplifier threshold voltage : 0.3 V (2.5 %) (CH1) Fast line transient response with current mode topology (CH1) PFM mode at light load current with VO1/VIN1 80 % (IO1 10 mA) (CH1) Power-on-reset with 66 ms delay (CH1) Built-in short circuit protect (CH2) Built-in over current protect (CH1, CH2) Built-in thermal protection function Small size plastic SON-10 (3 mm 3 mm) package Applications Portable Equipment PND, GPS PMP Mobile TV, USB-dongle (CMMB, DVB-T, DMB-T) Smart-phone MP3 Cypress Semiconductor Corporation 198 Champion Court San Jose, CA 95134-1709 408-943-2600 Document Number: 002-08460 Rev. *C Revised June 19, 2017 MB39C022G/J/L/N Contents Description ............................................................................. 1 10. Application Notes ......................................................... 14 Features .................................................................................. 1 10.1 Selection of components ....................................... 14 Applications ........................................................................... 1 10.2 DC/DC Output voltage setting ............................... 15 10.3 Power On Reset (POR) ......................................... 15 1. Pin Assignment ................................................................ 3 10.4 Power dissipation and heat considerations ........... 16 2. Pin Descriptions ............................................................... 4 10.5 Board layout, design example ............................... 17 3. I/O Terminal Equivalent Circuit Diagram ........................ 5 11. Example Of Standard Operation Characteristics ...... 18 4. Block Diagram .................................................................. 6 11.1 DC/DC Conversion Efficiency ...............................18 11.2 DC/DC Load Regulation ........................................ 18 5. Function Descriptions ...................................................... 7 11.3 DC/DC Line Regulation ......................................... 19 5.1 PFM/PWM Logic Control Block (CH1) ...................... 7 11.4 DC/DC Switching Waveform ................................. 19 5.2 Level converter and Iout Comparator circuit (CH1) ... 7 11.5 LDO Load Regulation ............................................ 20 5.3 Error Amp. circuit (CH1) ............................................ 7 11.6 LDO Line Regulation ............................................. 20 5.4 LDO Block (CH2) ....................................................... 7 11.7 LDO Power Supply Rejection Ratio ...................... 21 5.5 POR Block ................................................................. 7 11.8 DC/DC Load Transient Waveforms ....................... 21 5.6 Reference Voltage Block (VREF) .............................. 7 11.9 DC/DC Power MOS FET ON Resistance .............. 22 5.7 Under Voltage Lockout Protection Circuit Block (UVLO) ........................................................................ 8 12. Application Circuits Examples .................................... 24 5.8 Over Temperature Protection Block (OTP) ............... 8 13. Usage Precautions ....................................................... 26 5.9 Control Block (CTL) ................................................... 8 14. Ordering Information .................................................... 26 6. Absolute Maximum Ratings ............................................ 9 15. RoHS Compliance Information .................................... 26 7. Recommended Operating Conditions ..........................10 16. Package Dimension ...................................................... 27 8. Electrical Characteristics ............................................... 11 Document History ................................................................ 28 9. Test Circuit For Measuring Typical Operating Sales, Solutions, and Legal Information ...........................29 Characteristics ............................................................... 13 Document Number: 002-08460 Rev. *C Page 2 of 29