Datasheet BD70522GUL (Rohm) - 5

BD70522GUL Electrical Characteristics - continued
(Unless otherwise specified VIN=3.6V Ta=25°C) Parameter Symbol Min Typ Max Unit Conditions
Control
EN High Level VENH 1.1 - - V EN Low Level VENL - - 0.3 V EN Input Current IEN - 0 1 µA VSEL High Level VSELH VIN-0.3 - VIN+0.3 V VSEL Low Level VSELL -0.3 - +0.3 V VSEL Input Current IVSEL - 0 1 µA
Power Switch
High-side FET On-Resistance RONH - 0.30 0.45 Ω ILX =50mA Low-side FET On-Resistance RONL - 0.15 0.23 Ω ILX=-50mA High-side FET Switch Current Limit 1 ILIMITH1 1225 1750 2275 mA Peak current of inductor Low-side FET Switch Current Limit ILIMITL 680 970 1260 mA Bottom current of inductor High-side FET Switch Current Limit 2 ILIMITH2 680 970 1260 mA 100%ON Mode VOUT Discharge FET On-Resistance RDISCH 50 100 200 Ω IOUT=-10mA
Power Good Output
Power Good Detection Threshold VPGTH - 95 - % VOUT rising Power Good Hysteresis VPGHYS - -5 - % PG Low Level Output Voltage VOLPG -0.3 - 0.3 V IPG=-1mA PG Output Off Leak Current IOFFPG - 0 1 µA
100% ON Mode Transition
100% ON Mode Detection Threshold V100THM 100 200 300 mV VIN falling, VIN = VOUT + V100THM 100% ON Mode Release Threshold V100THP 150 250 350 mV VIN rising, VIN = VOUT + V100THP
Output
Output Voltage Range VOUTRG 1.2 - 3.3 V Refer to Table 1 Output Voltage Accuracy 1 VOACC1 -2.0 0.0 2.0 % IOUT=10mA Output Voltage Accuracy 2 VOACC2 -2.5 0.0 2.5 % IOUT=100mA Startup Delay Time tSDELAY 2.5 5.0 10.0 ms Soft-Start Time tSS 1.5 3.0 6.0 ms Table 1. Output Voltage Settings (Note 5) VSET VSEL1 VSEL2 1.2V GND OPEN 1.5V OPEN GND 1.8V GND GND 2.0V VIN GND 2.5V OPEN VIN 2.8V VIN OPEN 3.0V OPEN OPEN 3.2V GND VIN 3.3V VIN VIN (Note 5) The output voltage is only determined by the states of VSEL1 and VSEL2 during the startup delay. In order to reduce the current consumption, the output voltage cannot be changed by changing the states of VSEL1 and VSEL2 after the startup delay. www.rohm.com
TSZ02201-0Q1Q0AJ00400-1-2
© 2017 ROHM Co., Ltd. All rights reserved. 5/24 TSZ22111 • 15 • 001
21.Aug.2017 Rev.002
Document Outline General Description Features Applications Key Specifications Package Typical Application Circuit Contents Pin Configuration Pin Descriptions Block Diagram Absolute Maximum Ratings Thermal Resistance Recommended Operating Conditions Electrical Characteristics Detailed Descriptions Typical Performance Curves Figure 7. Efficiency vs Output Current Figure 8. Efficiency vs Output Current Figure 9. Efficiency vs Output Current Figure 10. Efficiency vs Output Current Figure 11. Output Voltage vs Output Current Figure 12. Output Voltage vs Output Current Figure 13. Output Voltage vs Output Current Figure 14. Output Voltage vs Output Current Figure 15. Switching Frequency vs Output Current Figure 16. Switching Frequency vs Output Current Figure 17. Switching Frequency vs Output Current Figure 18. Switching Frequency vs Output Current Figure 19. Output Ripple Voltage vs Output Current Figure 20. Output Ripple Voltage vs Output Current Figure 21. Output Ripple Voltage vs Output Current Figure 22. Output Ripple Voltage vs Output Current Figure 23. Load Transient Response Figure 24. Load Transient Response Figure 25. Load Transient Response Figure 26. Load Transient Response Figure 27. Line Transient Response Figure 28. Line Transient Response Figure 29. Line Transient Response Figure 30. Line Transient Response Figure 31. Line Transient Response Figure 32. Line Transient Response Figure 33. Line Transient Response Figure 34. Line Transient Response Figure 35. Startup Figure 36. Startup Figure 37. Shutdown Figure 38. Shutdown Figure 39. Input Voltage Ramp Up/Down Figure 40. Input Voltage Ramp Up/Down Figure 41. Input Voltage Ramp Up/Down Figure 42. Input Voltage Ramp Up/Down Timing Chart Application Examples I/O Equivalence Circuits Operational Notes 1. Reverse Connection of Power Supply 2. Power Supply Lines 3. Ground Voltage 4. Ground Wiring Pattern 5. Recommended Operating Conditions 6. Inrush Current 7. Operation Under Strong Electromagnetic Field 8. Testing on Application Boards 9. Inter-pin Short and Mounting Errors 10. Unused Input Pins 11. Regarding the Input Pin of the IC 12. Ceramic Capacitor 13. Area of Safe Operation (ASO) 14. Thermal Shutdown Circuit(TSD) 15. Over Current Protection Circuit (OCP) 16. Disturbance Light Ordering Information Marking Diagram Physical Dimension and Packing Information Revision History