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ILC6390CP-25 Fiches technique(PDF) 2 Page - Impala Linear Corporation

No de pièce ILC6390CP-25
Description  SOT-89 STEP-UP PFM SWITCHER WITH AUTO-LOAD SENSE
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Fabricant  IMPALA [Impala Linear Corporation]
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Logo IMPALA - Impala Linear Corporation

ILC6390CP-25 Fiches technique(HTML) 2 Page - Impala Linear Corporation

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SOT-89 Step-Up PFM Switcher with Auto-Load Sense
Impala Linear Corporation
2
(408) 574-3939
www.impalalinear.com
Feb 2001
ILC6390 1.1
Parameter
Symbol
Ratings
Units
VOUT Input Voltage
VOUT
12
V
Voltage on pin LX
VLX
12
V
Current on pin LX
ILX
400
mA
Voltage on pin EXT
VEXT
VSS-0.3~VOUT+0.3
V
Current on pin EXT
IEXT
±50
mA
CE Input Voltage
VCE
12
V
VDD Input Voltage
VDD
12
V
Continuous Total Power Dissipation
PD (SOT-25)
PD (SOT-89)
150
500
mW
Operating Ambient Temperature
Topr
-30~+80
°C
Storage Temperature
Tstg
-40~+125
°C
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Output Voltage
VOUT
Test Circuit of Figure 1
4.875
5.000
5.125
V
Input Voltage
VIN
10
V
Oscillation Startup Voltage
VST
IOUT = 1mA
0.80
0.9
V
Oscillation Hold Voltage
VHLD
IOUT = 1mA
0.70
V
NO-Load Input Current
IIN
IOUT = 0mA (See Note 1)
5.3
10.6
µA
Supply Current 1 (See Note 2)
IDD 1
VOUT = 4.75V
31.7
63.4
µA
Supply Current 2
IDD 2
VOUT = 5.5V
2.4
4.8
µA
LX Switch-On Resistance
RSWON
VOUT = 4.75V, VLX = 0.4
2.8
4.3
LX Leakage Current
ILXL
No external components, VOUT =
VLX = 10V
1.0
µA
Duty Ratio 1
DUTY 1
VOUT = 4.75V, Measuring of LX
waveform
70
75
80
%
Duty Ratio 2
DUTY 2
VOUT = 4.75V, Measuring of LX
on-time
50
55
60
%
Maximum Oscillation Freq. 1
MFO 1
VOUT = 4.75V, 75% duty
85
100
115
kHz
Maximum Oscillation Freq. 2
MFO 2
VOUT = 4.75V, 55% duty
153
180
207
kHz
Stand = by Current
ISTB
VOUT = 4.75V
0.5
µA
CE “High” Voltage
VCEH
VOUT = 4.75V, Existance of LX
Oscillation
0.75
V
CE “Low” Voltage
VCEL
VOUT = 4.75V, Disappearance of
LX Oscillation
0.20
V
CE “High” Current
ICEH
VCE = VOUT x 0.95
0.25
µA
CE “Low” Current
ICEL
VOUT = 4.75V, VCE = 0V
-0.25
µA
LX Limit Voltage
VLXLMT
VOUT = 4.75V, fosc > MFO x 2
(See Note 3)
0.7
1.1
V
Note:
1. The Schottky diode (S.D.), in figure 3 must be type MA735, with Reverse current (IR) < 1.0µA at reverse voltage (VR)=10.0V
2. “Supply Current 1” is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates which
results in less average power consumption.
The current that is actually provided by external VIN source is represented by “No-Load Input Current”
3. The switching frequency is determined by the delay time of the internal comparator and MFO1, which sets the min. on-time
Absolute Maximum Ratings (TA = 25°C)
Electrical Characteristics ILC6390
VOUT = 5.0V TA = 25°C. Unless otherwise specified, VIN = VOUT x 0.6, IOUT = 50mA. See schematic, fig. 3.


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