BU90002GWZ Datasheet, PDF (10/24 Pages) Rohm – Step-down Switching regulators with Built-in Power MOSFET

BU9000xGWZ series
Datasheet
2us
MODE
2V/div
Vout
50mV/div
ac coupled
IL
200mA/div
1.236
Figure 25. Mode Change Response
MODE : Low to High
100
90
80
VIN=2.7V
70
VIN=3.6V
VIN=4.2V
60
50
40
30
20
10
0
0.1
1
10
100
Load current[mA]
1000
Figure 26. Efficiency vs Load current
PWM/PFM Auto mode
1.224
1.212
VIN=4.2
VIN=3.6
VIN=2.7
1.200
1.188
0
200 400 600 800
Load current[mA]
Figure 27. Load regulation
PWM/PFM Auto mode
1000
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TSZ22111・15・001
10/21
TSZ02201-0F2F0AG00010-1-2
04.Jul.2012 Rev.001