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ILC6380 Fiches technique(PDF) 3 Page - Impala Linear Corporation

No de pièce ILC6380
Description  SOT-89 STEP-UP DUAL-MODE SWITCHER WITH SHUTDOWN
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Fabricant  IMPALA [Impala Linear Corporation]
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Logo IMPALA - Impala Linear Corporation

ILC6380 Fiches technique(HTML) 3 Page - Impala Linear Corporation

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SOT-89 Step-up Dual-Mode Switcher with Shutdown
Impala Linear Corporation
3
(408) 574-3939
www.impalalinear.com
Sept 1999
ILC6380/1 1.4
VOUT = 5.0V, FOSC = 100kHz TA = 25°C. Unless otherwise specified, VIN = VOUTX0.6, IOUT = 50mA. See the schematic, figure 4.
ILC6380
1
2
3
45
CE
V
OUT
C
L
+
GND
V
IN
L
SD
ILC6381
1
2
3
45
CE
V
OUT
C
L
+
L
SD
V
IN
C
B
R
B
Tr
L:
100µH ( SUMIDA, CD-54)
SD: Diode (Schottky diode; MATSUSHITA MA735)
CL: 16V 47µF (Tantalum Capacitor; NICHICON, F93)
L:
47µH ( SUMIDA, CD-54)
SD: Diode (Schottky diode; MATSUSHITA MA735)
CL: 16V 47µF (Tantalum Capacitor; NICHICON, F93)
RB: 1kW
CB: 3300pF
Tr: 2SC3279, 2SDI628G
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Output Voltage
VOUT
Test Circuit of Figure 2
4.875
5.000
5.125
V
Input Voltage
VIN
10
V
Oscillation Startup Voltage
VST2
VOUT = VST2
0.8
V
Operation Startup Voltage
VST1
IOUT = 1mA
0.9
V
Supply Current 1
(See Note 2)
IDD 1
EXT = 10k
Ω pull-up to 5V,
VOUT = 4.5V
78.6
131.1
µA
Supply Current 2
IDD 2
EXT = 10k
Ω pull-up to 5V,
VOUT = 5.5V
6.9
13.8
µA
EXT “High” On-Resistance
REXTH
EXT = 10k
Ω pull-up to 5V,
VOUT = 4.5V, VEXT = VOUT – 0.4V
30
50
EXT “Low” On-Resistance
REXTL
EXT = 10
Ω pull-up to 5V,
VOUT = 4.5V, VEXT = VOUT - 0.4V
30
50
Oscillator Frequency
FOSC
EXT = 10k
Ω pull-up to 5V, V
OUT =
4.5V, Measuring of EXT waveform
85
100
115
kHz
Maximum Duty Ratio
MAXDTY
EXT = 10k
Ω pull-up to 5V, V
OUT =
4.5V, Measuring of EXT high state
80
87
92
%
CE “High” Voltage
VCEH
EXT = 10k
Ω pull-up to 5V, V
OUT =
4.5V, Existence of Oscillation
0.75
V
CE “Low” Voltage
VCEL
EXT = 10k
Ω pull-up to 5V, V
OUT =
4.5V, Stopped EXT Oscillation
0.20
V
CE “High” Current
ICEH
EXT: 10k
Ω pull-up to 5V,
VOUT = 4.5V, VCE = VOUT X 0.95V
0.25
µA
CE “Low” Current
ICEL
EXT = 10k
Ω pull-up to 5V,
VOUT = 4.5V, VCE = 0V
-0.25
µA
Efficiency
EFFI
85
%
Slow Start Time
TSS
10
msec
Notes:
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 (IIN)”
Electrical Characteristics ILC6380BP-50
Typical Applications
Figure 3
Figure 4


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