PS0020
ELECTRICAL CHARACTERISTICS ( continued )
T
A
= 25°C. V
IN
= 1.5V, V
OUT
= 3.3V, V
SHUTB
= 1.5V (UNLESS OTHERWISE NOTED).
Parameter
SHUTB Input High
SHUTB Input Low
SHUTB Input Current
Frequency in Start-up
Thermal Shutdown
Conditions
Min
0.95
Typ
Max
Unit
V
V
μA
kHz
°C
0.35
10
15°C Hysteresis
100
145
Note 1:
Minimum operating input voltage is fixed by the battery’s ability to provide necessary power at that (terminal)
voltage. Below this voltage, the battery fails to deliver required power as it enters into deeply discharged state. This voltage
can be lower if the required duty cycle is less.
Note 2:
When input voltage is greater than output voltage regulation point, the part is in track mode (see Track Mode).
Note 3:
For applications where V
OUT
> 4.3V, an external Schottky diode is required.
Note 4:
Limits are 100% production tested at T
A
= 25°C. Limits over the operating temperature range are guaranteed by
design.
Version 1.1
July 6, 2007
www.picsemi.com
© 2007 Power IC. All Rights Reserved.
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