ISL8201M
Electrical Specifications
T A = +25°C. V IN = 12V, V OUT = 1.5V. C IN = 220μFx1, 10μF/Ceramicx2, C OUT = 330μF (ESR = 10m Ω ),
22μF/Ceramicx3. (Continued)
PARAMETER
Oscillator Frequency
Internal Resistor Between V OUT and FB Pins
Disabled Threshold Voltage (COMP/EN)
Reference Voltage
Reference Voltage Tolerance
SYMBOL
F OSC
R FB-TI
V ENDIS
V REF
CONDITIONS
(Note 7)
(Note 7)
(Note 7)
0°C to +70°C (Note 7)
-40°C to +85°C (Note 7)
MIN
510
9.66
0.375
-
-1.0
-1.5
TYP
600
9.76
0.4
0.6
-
-
MAX
660
9.85
0.425
-
+1.0
+1.5
UNITS
kHz
k Ω
V
V
%
%
FAULT PROTECTION
Internal Resistor Between I SET and P GND Pins
R SET-IN
-
3.57
-
k Ω
I SET Current Source
I SET
(Note 7)
18.0
21.5
23.5
μA
P OUT ( V OUT xI OUT )
P IN ( V IN xI IN )
NOTE:
7. Parameters are 100% tested for internal IC prior to module assembly.
Typical Performance Characteristics
Efficiency Performance T A = +25°C, V IN = P VCC (P VCC =5V for 18V IN ) , C IN = 220μFx1, 10μF/Ceramicx2, C OUT = 330μF (ESR = 10m Ω ),
Output Power
22μF/Ceramicx3. The efficiency equation is: Efficiency = ----------------------------------------- = ---------------- = --------------------------------------
Input Power
100
90
80
70
100
90
80
70
60
50
3.3V
2.5V
1.5V
1.2V
60
50
5.0V
3.3V
2.5V
1.5V
1.2V
40
0.8V
40
0.8V
30
0
2
4
6
8
10
30
0
2
4
6
8
10
LOAD CURRENT (A)
FIGURE 2. EFFICIENCY vs LOAD CURRENT (5V IN )
100
90
80
5.0V
LOAD CURRENT (A)
FIGURE 3. EFFICIENCY vs LOAD CURRENT (12V IN )
V IN = 12V
V OUT = 1.2V
I OUT = 0A to 5A
70
60
50
3.3V
2.5V
1.5V
1.2V
40
30
0
2
4
6
8
10
LOAD CURRENT (A)
FIGURE 4. EFFICIENCY vs LOAD CURRENT (18V IN )
5
FIGURE 5. 1.2V TRANSIENT RESPONSE
FN6657.2
October 21, 2010
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