PS0020 Datasheet, PDF (5/10 Pages) Power IC Ltd. – Low Iq Synchronous Boost Converter with Output Disconnect

PS0020
ELECTRICAL CHARACTERISTICS ( continued )
T_A = 25°C. V_IN = 1.5V, V_OUT = 3.3V, V_SHUTB = 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
15°C Hysteresis
0.95
V
0.35
V
10
μA
100
kHz
145
°C
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
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5
July 6, 2007
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