S8880A Datasheet, PDF (10/30 Pages) Seiko Instruments Inc – ENERGY HARVESTING POWERED BY ULTRA-LOW POWER AND ULTRA-LOW VOLTAGE OPERATION BOOST CHARGE PUMP FOR STEP-UP DC-DC CONVERTER STARTUP

ENERGY HARVESTING POWERED BY ULTRA-LOW POWER AND ULTRA-LOW VOLTAGE OPERATION BOOST CHARGE PUMP FOR STEP-UP DC-DC CONVERTER STARTUP
S-8880A Series
Rev.1.0_01
3. V_OUT > 3.0 V, C_L ≤ C_CPOUT × 0.1, no load
V_IN
CIN
SD2
CCPOUT
CPOUT
OUT
VIN
S-8880A Series
VM
VSS
VDD
VOUT
VIN _{Step-up DC-DC converter}
R₁
R_OUT
VSS
R₂
4. V_OUT > 3.0 V, C_L > C_CPOUT × 0.1
Figure 9
V_VOUT
CL
V_IN
CIN
SD2
C_CPOUT
CPOUT
OUT
VIN _{S-8880A Series}
VM
VSS
SD1
VIN
R_OUT
VDD
Step-up DC-DC converter
VSS
CVDD
VOUT
R₁
R₂
V_VOUT
CL
Figure 10
Caution The above connection diagram and constant will not guarantee successful operation. Perform
thorough evaluation using the actual application to set the constant.
10