S-882125AMH-M2ATFZ Datasheet, PDF (15/24 Pages) Seiko Instruments Inc – VOLTAGE REGULATION

Rev.5.1_01
VOLTAGE REGULATION STEP-UP CHARGE PUMP DC-DC CONVERTER
S-8821 Series
(4) Ripple voltage vs. Operation input voltage
S-882133A
100
I_OUT=10 mA, Ta=25°C
80
60
40
20
01.5 _{2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5}
V_IN [V]
(5) Efficiency^*1 vs. Operation input voltage
S-882133A
100
I_OUT=10 mA, Ta=25°C
S-882150A
100
I_OUT=10 mA, Ta=25°C
80
60
40
20
01.5 _{2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5}
V_IN [V]
S-882150A
100
I_OUT=10 mA, Ta=25°C
80
80
60
60
40
40
201.5 _{2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5}
V_IN [V]
201.5 _{2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5}
V_IN [V]
*1. The ideal efficiency is indicated by the following expression.
Efficiency (η)=(VOUT × IOUT) / (2.0 × VIN × IOUT)
(6) Maximum oscillation frequency vs. Operation input voltage
S-882133A
1300
Ta=25°C
S-882150A
1300
Ta=25°C
1200
1200
1100
1100
1000
1000
900
900
800
800
7001.5 _{2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5}
V_IN [V]
7001.5 _{2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5}
V_IN [V]
15