Rainbow Electronics ATtiny43U - Manual (Page 166)

166
8048B–AVR–03/09
ATtiny43U
Figure 21-2. Boost Converter Efficiency vs. Load Current and V
BAT
Voltage
Figure 21-3. Input Voltage Required to Maintain Regulation vs. Load Current
60
70
80
90
Load Current (mA)
Efficiency (%)
10 0 20 30
BOOST CONVERTER EFFICIENCY vs. LOAD CURRENT
V
BAT
= 1.8 V
V
BAT
= 1.2 V
V
BAT
= 1.0 V
V
BAT
= 0.7 V
V
BAT
= 1.5 V
0.6
0.8
1.0
1.2
Load Current (mA)
V
BAT
(V)
10 0 20 30
TYPICAL V
BAT
VOLTAGES REQUIRED TO MAINTAIN OUTPUT REGULATION
1.1
0.9
0.7