LTC1504A
ABSOLUTE
MAXIMUM
RATINGS
(Note 1)
PACKAGE/ORDER I FOR ATIO
TOP VIEW
I
MAX
1
V
CC
2
SW 3
GND 4
8
7
6
5
COMP
SS
SHDN
FB/SENSE*
Supply Voltage (V
CC
to GND) ................................... 10V
Peak Output Current (SW) .......................................
±
1A
Input Voltage (All Other Pins) ...... – 0.3V to (V
CC
+ 0.3V)
Operating Temperature Range
LTC1504AC ............................................. 0°C to 70°C
LTC1504AI ......................................... – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
ORDER PART
NUMBER
LTC1504ACS8
LTC1504ACS8-3.3
LTC1504AIS8
LTC1504AIS8-3.3
S8 PART MARKING
1504A
1504AI
1504A33 04AI33
S8 PACKAGE
8-LEAD PLASTIC SO
*FB FOR LTC1504A, SENSE FOR LTC1504A-3.3
T
JMAX
= 125°C,
θ
JA
= 90°C/W
Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS
SYMBOL
V
CC
V
FB
∆V
FB
V
SENSE
∆V
SENSE
I
CC
PARAMETER
Minimum Supply Voltage
Feedback Voltage
Feedback Voltage PSRR
Sense Pin Voltage
Sense Voltage PSRR
Supply Current
CONDITIONS
(Note 7)
LTC1504ACS8
LTC1504AIS8
V
CC
= 5V, T
A
= 25°C unless otherwise specified. (Note 2)
MIN
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
TYP
1.265
1.265
1.1
1.1
MAX
1.28
1.29
1.6
1.8
3.40
1.8
2.0
0.6
20
250
300
2.0
2.2
0.8
UNITS
V
V
V
%
%
V
%
%
mA
mA
µA
kHz
kHz
Ω
Ω
V
V
µA
V
V
µA
µmho
µmho
dB
µmho
4
1.25
1.23
Figure 1, 4V
≤
V
CC
≤
10V, LTC1504ACS8
Figure 1, 4V
≤
V
CC
≤
10V, LTC1504AIS8
LTC1504ACS8-3.3
Figure 1, 4V
≤
V
CC
≤
10V, LTC1504ACS8-3.3
Figure 1, 4V
≤
V
CC
≤
10V, LTC1504AIS8-3.3
Figure 1, V
SHDN
= V
CC
, I
OUT
= 0 (Note 4)
Figure 1, V
SHDN
= V
CC
, I
OUT
= 0, V
FB
/V
SENSE
= V
CC
(Note 4)
V
SHDN
= 0V
Commercial
Industrial
Commercial
Industrial
3.20
3.30
1.2
1.2
3
0.3
1.0
f
OSC
R
SW
V
IH
V
IL
I
IN
V
OH
V
OL
I
OH
, I
OL
g
mV
A
V
g
mI
I
MAX
Internal Oscillator Frequency
Internal Switch Resistance
SHDN Input High Voltage
SHDN Input Low Voltage
SHDN Input Current
Error Amplifier Positive Swing
Error Amplifier Negative Swing
Error Amplifier Output Current
Error Amplifier Transconductance
Error Amplifier DC Gain
I
LIM
Amplifier Transconductance
I
MAX
Sink Current
150
130
200
200
1.3
1.3
2.4
±0.1
4.5
±50
350
300
40
8
8
4.95
0.05
±100
600
600
48
2000
12
12
16
17
0.5
±200
1100
1200
±1
Figure 2
Figure 2
Figure 2
Commercial (Note 5)
Industrial (Note 5)
(Note 5)
(Note 6)
V
IMAX
= V
CC
, Commercial
V
IMAX
= V
CC
, Industrial
q
q
q
q
q
q
q
q
2
U
µA
µA
W
U
U
W W
W
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