ADP5302

Data Sheet

Rev. B | Page 20 of 22

TYPICAL APPLICATION CIRCUITS

The ADP5302 can be used as a keep-alive, ultralow power step-

down regulator to extend battery life (see Figure 43) and as a

battery-powered equipment or wireless sensor network

controlled by a microcontroller or a processor (see Figure 44).

The stop switching function achieves a quiet system environment

for noise sensitive applications.

Li-Ion

BATTERY

2.2µH

SW

PGND

FB

10µF

R2

1MΩ

10µF

PVIN

EN

SYNC/MODE

ADP5302

ADC/RF/AFE

MCU

(ALWAYS-ON)

VID

AGND

VINOK

STOP

Figure 43. Typical Application Circuit with STOP Switching Functionality

TWO ALKALINE

OR Ni-MH

BATTERIES

R1

19.6k

1%

2.2µH

SW

PGND

FB

10µF

R2

1MΩ

10µF

PVIN

EN

SYNC/MODE

ADP5302

ADC/RF/AFE

MCU

(ALWAYS-ON)

VID

AGND

VINOK

STOP

Figure 44. Typical Application Circuit with 2 Alkaline or NiMH Batteries