LTC3109 Linear Technology, LTC3109 Datasheet - Page 8

• Manufacturer Part Number: LTC3109
• Description: Ultralow Voltage Step-Up Converter and Power Manager
• Manufacturer: Linear Technology

LTC3109
block DiagraM

V
IN
•
•
•
•
C1B
C1A
C2A
C2B
SWA
V
SWB
V
INA
INB
SWITCHES
POWER
RECTIFY
SYNC
RECTIFY
SYNC
V
V
VAUX
STORE
V
C
1µF
V
OUT
REF
AUX
OUT
5.25V
CONTROL
CHARGE
LDO
REFERENCE
VLDO
C
2.2µF
LDO
V REF
1.2V
2.2V
V
REF
+
–
+
–
GND
1
V
LDO
1M
V
VSTORE
OUT2_EN
PG00D
V
V
OUT2
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VS1
VS2
OUT
3109 BD
+
+
V
OUT2
PG00D
V
PROGRAM
C
OUT
C
OUT
STORE
V
3109f
OUT