UM3433 Datasheet, PDF (3/9 Pages) Union Semiconductor, Inc. – 600mA, 600kHz Step-Up DC-DC Converter

UM3433
Electrical Characteristics
(V_IN= +1.2V, V_OUT= +3.3V T_A=+25°C, unless otherwise noted.)
Parameter
Test Conditions
Min
Input Voltage Range
0.9
Fixed Output Voltage
UM3433-3.3, I_load=100mA 3.22
UM3433-3.0, I_load=100mA 2.92
Output Voltage Adjustable
Range
UM3433-ADJ
2.5
Feedback Voltage
1.192
Quiescent Current
(power-saving mode)
Quiescent Current
(Active)
Quiescent Current
(shutdown)
I_load=0mA
I_load=100mA
_____________
SHDN=0V
NMOS Leakage
V_SW=3.3V
PMOS Leakage
NMOS On-resistance
PMOS On-resistance
NMOS Current limit
600
Power-Saving Mode
Operation Current threshold
L=10µH (Note)
Current Limit Delay to
Output
Switching Frequency
____________
SHDN Input High
_____________
I_load=100mA, SHDN=1V
I_load=100mA
1
____________
SHDN Input Low
I_load=100mA
____________
SHDN Input Current
_____________
I_load=100mA, SHDN=1V
Note: Design guaranteed.
Typ
3.3
3.0
1.230
20
380
0.1
0.1
0.35
0.45
850
3
40
600
0.01
Max
2.5
3.38
3.08
5
1.268
550
1
0.35
1
Unit
V
V
V
V
µA
µA
µA
µA
µA
Ω
Ω
mA
mA
ns
kHz
V
V
µA
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http://www.union-ic.com Rev.05 Dec.2009
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