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CS8151YT7

5.0 V, 100 mA Low Dropout Linear Regulator with Watchdog, RESET, and Wake Up

ON Semiconductor 

VIN

RESET

Wake Up

CS8151

TIMING DIAGRAMS

Wake Up

Duty Cycle = 50%

WDI

VOUT

POR

RESET High

to Wake Up

Delay Time

Power Up

Sleep Mode

Normal Operation with Varying Watchdog Signal

Figure 2. Power Up, Sleep Mode and Normal Operation

VIN

RESET

Wake Up

WDI

RESET Delay Time

VOUT

POR

RESET High

to Wake Up

Delay Time

Wake Up

Period

RESET High

to Wake Up

Delay Time

Figure 3. Error Condition: Watchdog Remains Low and a RESET Is Issued

RESET

Wake Up

Wake Up Period

WDI

VOUT

Watchdog

Pulse Width

POR

RTL

Power Down

Watchdog Pulse Width

POR

Figure 4. Power Down and Restart Sequence

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