BD71805MWV Datasheet, PDF (87/100 Pages) Rohm – System PMIC for Battery Powered Systems

BD71805MWV
Typical Performance Curves - continued
100
90
80
70
60
50
40
30
20
10
0
0.001
VBAT=4.2V, Vout=3.3V, Ta=25°C
0.010
0.100
1.000
BUCK3 Output Current : Iout [A]
Figure 37. BUCK3 – Efficiency
(Auto Mode)
100
VBAT=4.2V, Vout=3.3V, Ta=25°C
90
PFM Mode
80
70
PWM Mode
60
50
40
30
20
10
0
0.001
0.010
0.100
1.000
BUCK3 Output Current : Iout [A]
Figure 38. BUCK3 – Efficiency
(PWM Mode / PFM Mode)
100
90
80
70
60
50
40
30
20
10
0
0.001
VBAT=4.2V, Vout=1.8V, Ta=25°C
0.010
0.100
1.000
BUCK4 Output Current : Iout [A]
Figure 39. BUCK4 – Efficiency
(Auto Mode)
100
PFM Mode
90
VBAT=4.2V, Vout=1.8V, Ta=25°C
80
70
60
PWM Mode
50
40
30
20
10
0
0.001
0.010
0.100
1.000
BUCK4 Output Current : Iout [A]
Figure 40. BUCK4 – Efficiency
(PWM Mode / PFM Mode)
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TSZ02201-0Q4Q0AB00050-1-2
27.Feb.2015 Rev.001