S-882Z Datasheet, PDF (2/24 Pages) Seiko Instruments Inc – ULTRA-LOW VOLTAGE OPERATION CHARGE PUMP IC FOR STEP-UP DC-DC CONVERTER STARTUP

ULTRA-LOW VOLTAGE OPERATION CHARGE PUMP IC FOR STEP-UP DC-DC CONVERTER STARTUP
S-882Z Series
Rev.1.2_00
„ Block Diagram
VIN 4
*1
CPOUT
5
Charge pump circuit
CLK signal
Oscillation
circuit
EN−
CCPOUT
*1
1 OUT
M1
*1
COMP1
−
+
VREF
−
+
COMP2
3 VM
*1
2
VSS
*1. Parasitic diode
Figure 1
2
Seiko Instruments Inc.