BD9361GUL Datasheet, PDF (11/27 Pages) Rohm – 6ch Internal Power MOSFET System Switching Regulator + 1ch LDO

BD9361GUL
●Efficiency data (1)
100
90
80
70
60
50
40
10
CH1 STEP UP 5.0V Efficiency‐Io
100
Io[mA]
VBAT=4.2V
VBAT=3.6V
VBAT=3.0V
VBAT=2.5V
1000
Fig7. CH1 5.0V voltage boost efficiency－Io
Inductor : 2.2uH (YUDEN: NR4018T)
CH2 Cross converter 3.3V Io‐Efficiency
100
95
90
85
80
75
VBAT=4.2V
70
65
VBAT=3.6V
60
VBAT=2.8V
55
VBAT=2.5V
50
10
100
1000
Io [mA]
Fig8. CH2 3.3V Cross converter efficiency－Io
Inductor : 3.3uH (YUDEN: NR3015T)
CH3 Step Down 1.15V Io‐Efficiency
100
90
80
70
60
50
40
30
10
VBAT=4.2V
VBAT=3.6V
VBAT=2.8V
VBAT=2.5V
100
1000
Io [mA]
10000
Fig9. CH3 1.15V Step-down efficiency－Io
Inductor : 2.2uH (YUDEN: NR3015T)
100
95
90
85
80
75
70
65
60
55
50
10
CH4 Step Down 1.8V Io‐Efficiency
100
Io[mA]
VBAT=4.2V
VBAT=3.6V
VBAT=2.8V
VBAT=2.5V
1000
Fig10. CH4 1.8V Step-down efficiency－Io
Inductor : 2.2uH (YUDEN: NR3015T)
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11
TSZ22111・14・001
TSZ02201-0Q2Q0A400010-1-2
2011.12.22 Rev.001