L3383 Datasheet, PDF (4/14 Pages) Unisonic Technologies – PFM CONTROLLED, STEP-UP DC/DC CONVERTERS (VARIABLE DUTY RATIO)

L3383
CMOS IC
ELECTRICAL CHARACTRISTICS(Cont.)
UTC L3383-2.5V (I_OUT=10mA)
PARAMETER
SYMBOL
TEST CONDITIONS
Output Voltage
V_OUT L, SD, C_L etc. connected
Maximum Input Voltage
V_IN
Oscillation Start-up Voltage
V_ST I_OUT=1mA
Oscillation Hold Voltage
V_HLD I_OUT=1mA
Lx Limit Voltage
V_LxLMT Same as I_DD1. Fosc>Fosc1×2
No-Load Input Current
I_IN I_OUT=0mA (Note 1)
Supply Current 1(Note 2)
Supply Current 2
Lx Leakage Current
I_DD1 V_IN=V_OUT×0.95
I_DD2 V_IN=V_OUT+0.5V
I_LXL No external components, V_OUT=V_Lx=10V.
Lx Switch-On Resistance
R_SWON Same as I_DD1. V_Lx=0.4V
Duty Ratio 1
DTY1 Same as I_DD1. Measuring of Lx waveform
Duty Ratio 2
DTY2 I_OUT=1mA. Measuring of Lx on-time
Efficiency
Maximum Oscillation Frequency
For 5-Pins package Only
EFFI
Fosc1
Fosc2
L, SD, C_L etc. connected
Same as I_DD1. 75% duty
Same as I_DD1. 45% duty
CE Voltage
High
Low
V_CEH
V_CEL
Same as I_DD1.
Existence of Lx Oscillation.
Same as I_DD1.
Disappearance of Lx Oscillation
CE ”High” Current
High
Low
I_CEH Same as I_DD1. V_CE=V_OUT×0.95
I_CEL Same as I_DD1. V_CE=0V
Stand-by Current
I_STB Same as I_DD1.
MIN
2.438
0.70
0.7
70
40
150
100
TYP
2.500
0.80
4.45
16.65
2.0
7.15
75
45
70
180
120
MAX
2.563
10
0.90
1.1
8.95
33.35
4.05
1.0
10.8
80
50
210
130
UNIT
V
V
V
V
V
µA
µA
µA
µA
Ω
%
%
%
kHz
kHz
0.75
V
0.20 V
0.25 µA
-0.25 µA
0.5 µA
UTC L3383-2.6V (I_OUT=10mA)
PARAMETER
SYMBOL
TEST CONDITIONS
Output Voltage
V_OUT L, SD, C_L etc. connected
Maximum Input Voltage
V_IN
Oscillation Start-up Voltage
V_ST I_OUT=1mA
Oscillation Hold Voltage
V_HLD I_OUT=1mA
Lx Limit Voltage
V_LxLMT Same as I_DD1. Fosc>Fosc1×2
No-Load Input Current
I_IN I_OUT=0mA (Note 1)
Supply Current 1(Note 2)
Supply Current 2
Lx Leakage Current
I_DD1 V_IN=V_OUT×0.95
I_DD2 V_IN=V_OUT+0.5V
I_LXL No external components, V_OUT=V_Lx=10V.
Lx Switch-On Resistance
R_SWON Same as I_DD1. V_Lx=0.4V
Duty Ratio 1
DTY1 Same as I_DD1.Measuring of Lx waveform
Duty Ratio 2
DTY2 I_OUT=1mA. Measuring of Lx on-time
Efficiency
EFFI L, SD, C_L etc. connected
Maximum Oscillation Frequency ^{Fosc1 Same as IDD1. 75% duty}
Fosc2 Same as I_DD1. 45% duty
For 5-Pins package Only
CE Voltage
High
Low
V_CEH
V_CEL
Same as I_DD1.
Existence of Lx Oscillation.
Same as I_DD1.
Disappearance of Lx Oscillation
CE ”High” Current
High
Low
I_CEH Same as I_DD1. V_CE=V_OUT×0.95
I_CEL Same as I_DD1. V_CE=0V
Stand-by Current
I_STB Same as I_DD1.
MIN
2.535
0.70
0.7
70
40
150
100
TYP
2.600
0.80
4.48
17.26
2.02
6.76
75
45
70
180
120
MAX
2.665
10
0.90
1.1
9.02
34.56
4.08
1.0
10.22
80
50
210
130
UNIT
V
V
V
V
V
µA
µA
µA
µA
Ω
%
%
%
kHz
kHz
0.75
V
0.20 V
0.25 µA
-0.25 µA
0.5 µA
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R502-032,E