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ADP5303ACBZ-2-R7 데이터시트(PDF) 19 Page - Analog Devices

부품명 ADP5303ACBZ-2-R7
상세설명  50 mA/500 mA, Ultralow Power Step-Down Regulator With Battery Voltage Monitor
PDF  21 Pages
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ADP5303ACBZ-2-R7 데이터시트(HTML) 19 Page - Analog Devices

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Data Sheet
ADP5303
Rev. B | Page 19 of 21
TYPICAL APPLICATION CIRCUITS
The ADP5303 can be used as a keep-alive, ultralow power step-
down regulator to extend battery life (see Figure 42), and as a
battery-powered equipment or wireless sensor network
controlled by a microcontroller or a processor (see Figure 43).
2.2µH
SW
PGND
FB
10µF
10µF
VOUT = 1.8V
PVIN
VID
EN
Li-Ion BATTERY
SYNC/MODE
VIN = 3.0V TO 4.2V
ADP5303
R2
20kΩ
1%
VINOK
AGND
Figure 42. Typical Application Circuit with Li-Ion Battery
TWO
ALKALINE
OR Li-Ion
BATTERIES
2.2µH
SW
PGND
FB
10µF
R2
1MΩ
10µF
PVIN
EN
SYNC/MODE
VIN = 2.0V TO 3.0V
VOUT = 1.8V
ADP5303
ADC/RF/AFE
MCU
(ALWAYS-ON)
VID
AGND
VINOK
R1
19.6kΩ
1%
Figure 43. Typical Application Circuit with Two Alkaline or NiMH Batteries



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