PS0020
ELECTRICAL CHARACTERISTICS ( continued )
TA = 25°C. VIN = 1.5V, VOUT = 3.3V, VSHUTB = 1.5V (UNLESS OTHERWISE NOTED).
Parameter
Conditions
Min
Typ
Max
Unit
SHUTB Input High
SHUTB Input Low
SHUTB Input Current
Frequency in Start-up
Thermal Shutdown
0.95
V
V
μA
kHz
°C
0.35
10
100
145
15°C Hysteresis
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 VOUT > 4.3V, an external Schottky diode is required.
Note 4: Limits are 100% production tested at TA = 25°C. Limits over the operating temperature range are guaranteed by
design.
Version 1.1
July 6, 2007
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© 2007 Power IC. All Rights Reserved.
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