BD9C301FJ-LB Datasheet, PDF (7/22 Pages) Rohm – 4.5V to 18V Input, 3.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter

BD9C301FJ-LB
Typical Performance Curves (Continued)
EN [5V/div]
V_OUT [2V/div]
SW [10V/div]
EN [5V/div]
V_OUT [2V/div]
SW [10V/div]
T - Time – 1msec/div
Figure 12. Start-up with EN
(V_IN=12V, V_OUT =3.3V, L=4.7µH, Cout=44µF, Iout=0A)
T - Time – 200msec/div
Figure 13. Shutdown Wave Form
(V_IN=12V, V_OUT=3.3V, L=4.7µH, Cout=44µF, Iout=0A)
V_OUT (AC) [100mV/div]
Δ=+105mV
Δ=-100mV
Iout [1A/div]
V_OUT [5V/div]
SW [20V/div]
IL [5A/div]
T - Time – 1msec/div
Figure 14. Load Transient response
(V_IN=12V, V_OUT=3.3V, L=4.7µH, Cout=44µF, Iout=2A)
T - Time - 200µsec/div
Figure 15. OCP Function
(V_IN=12V, V_OUT 3.3V, L=4.7µH,
Cout=44µF, V_OUT is short to GND)
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TSZ22111・15・001
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TSZ02201-0J3J0AJ00540-1-2
21.Feb.2014 Rev.002