1 Amp SOT-89 Step Down PWM Switcher Controller
Absolute Maximum Ratings (T
A
= 25
ο
C)
Parameter
Input Voltage
Voltage on V
OUT
pin
Voltage on pin EXT
Current on pin EXT
Continuous Total Power Dissipation
Operating Ambient Temperature
Storage Temperatures
Symbol
V
IN
V
OUT
V
EXT
I
EXT
P
D
T
A
T
STG
Ratings
12
12
-0.3 to V
IN
+ 0.3
+50
500
-30 to +80
-40 to+125
Units
V
V
V
mA
mW
ο
C
ο
C
Electrical Characteristics ILC6375CP-50
V
OUT
= 5.0V F
OSC
= 100kHz T
A
= 25 C, unless otherwise specified, V
IN
= 6V, I
OUT
= 100mA, See test circuit, figure 1.
o
Parameter
Output Voltage
Input Voltage
Supply Current 1
Supply Current 2
EXT “High” ON Resistance
EXT “Low” ON Resistance
Oscillator Frequency
Maximum Duty Ratio
Efficiency
Soft-Start Time
Symbol
V
OUT
V
IN
I
DD
1
I
DD
2
R
EXTH
R
EXTL
F
OSC
MAXDTY
EFFI
T
SS
Conditions
Min
4.875
Typ
5.000
25
20
38
30
4.75V applied to V
OUT
with no
external components
5.5V applied to V
OUT
with no
external components
5.5V applied to V
OUT
with no
external components, V
EXT
=4.6V
4.75V applied to V
OUT
with no
external components, V
EXT
=0.4V
Measure Frequency at EXT pin
Measure Duty Cycle at EXT pin
Max
5.125
10
42
34
63
50
115
Units
V
V
µA
µA
Ω
Ω
kHz
%
%
ms
85
100
100
90
10
Impala Linear Corporation
ILC6375 1.1
(408) 574-3939
www.impalalinear.com
June 1999
2
IMPALA [ Impala Linear Corporation ]
