s-882150aph-m2ztfu Seiko Instruments Inc., s-882150aph-m2ztfu Datasheet - Page 2

• Manufacturer Part Number: s-882150aph-m2ztfu
• Description: Voltage Regulation Step-up Charge Pump Dc-dc Converter
• Manufacturer: Seiko Instruments Inc.

2
VOLTAGE REGULATION STEP-UP CHARGE PUMP DC-DC CONVERTER
S-8821 Series
Block Diagram
C
PUMP
C
IN
=0.10 µ F
=4.7 µ F
VIN
C +
C −
SW2
SW1
SW3
SW4
control
Switch
circuit
Soft start
circuit
Seiko Instruments Inc.
ON/OFF
Figure 1
PFM control
(1.0 MHz)
oscillator
circuit
ON/OFF
circuit
Reference
voltage
+
-
R
R
s
f
GND
VOUT
Rev.4.1
C
OUT
=10 µ F
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