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ILC6391CM-25 Datenblatt(PDF) 3 Page - Impala Linear Corporation

Teilenummer ILC6391CM-25
Bauteilbeschribung  SOT-89 STEP-UP PFM SWITCHER WITH AUTO-LOAD SENSE
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Hersteller  IMPALA [Impala Linear Corporation]
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ILC6391CM-25 Datenblatt(HTML) 3 Page - Impala Linear Corporation

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SOT-89 Step-Up PFM Switcher with Auto-Load Sense
Impala Linear Corporation
3
(408) 574-3939
www.impalalinear.com
Feb 2001
ILC6390 1.1
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Output Voltage
VOUT
Test Circuit of Figure 4
4.875
5.000
5.125
V
Input Voltage
VIN
10
V
Operation Startup Voltage
VST
IOUT = 1mA
0.80
0.9
V
Operation Hold Voltage
VST
IOUT = 1mA
0.70
V
Supply Current 1 (See Note 1)
IDD 1
VOUT = 4.75V
31.7
63.4
µA
Supply Current 2
IDD 2
VOUT = 5.5V
2.4
4.8
µA
EXT “High” On-Resistance
REXTH
VOUT = 4.75V, VEXT = VOUT-0.4
50
75
EXT “Low” On-Resistance
REXTL
VOUT = 4.75V, VEXT = 0.4
50
75
Duty Ratio 1
DUTY 1
VOUT = 4.75V, Measuring of
EXT waveform
70
75
80
%
Duty Ratio 2
DUTY 2
VIN = VOUT x 0.95, IOUT = 1mA,
Measuring of EXT High State
50
55
60
%
Maximum Oscillation Freq. 1
MFO 1
VOUT = 4.75V, 75% duty
85
100
115
kHz
Maximum Oscillation Freq. 2
MFO 2
VIN = VOUT x 0.95, 55% duty
153
180
207
kHz
Stand = by Current
ISTB
VOUT = 4.75V
0.5
µA
CE “High” Voltage
VCEH
VOUT = 4.75V, Existence of
EXT Oscillation
0.75
V
CE “Low” Voltage
VCEL
VOUT = 4.75V, Disappearance
of EXT Oscillation
0.20
V
CE “High” Current
ICEH
VCE = VOUT = 4.75V
0.25
µA
CE “Low” Current
ICEL
VOUT = 4.75V, VCE = 0V
-0.25
µA
Efficiency
EFFI
Test Circuit Figure 4
85
%
Note:
1. “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.
Electrical Characteristics ILC6391
VOUT = 5.0V TA = 25°C. Unless otherwise specified, VIN = VOUT x 0.6, IOUT = 50mA. See schematic, Fig.4


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