BU90002GWZ Datasheet, PDF (6/24 Pages) Rohm – Step-down Switching regulators with Built-in Power MOSFET

BU9000xGWZ series
Datasheet
Vout
50mV/div
ac coupled
IOUT
200mA/div
Vout
20mV/div
ac coupled
4us
LX
5V/div
IL
500mA/div
400ns
Figure 9. Load transient response 150mA to 500mA
tr=tf=100ns, MODE : High
Figure 10. PFM mode Operation
Iout=40mA
Vout
20mV/div
ac coupled
MODE
4us
2V/div
80ns
LX
5V/div
Vout
20mV/div
ac coupled
IL
500mA/div
IL
500mA/div
Figure 11. PWM mode Operation
Iout=100mA
Figure 12. Mode Change Response
MODE : High to Low
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TSZ22111・15・001
6/21
TSZ02201-0F2F0AG00010-1-2
04.Jul.2012 Rev.001