LTC1514-3.3/LTC1514-5
ABSOLUTE
MAXIMUM
RATINGS
(Note 1)
PACKAGE/ORDER INFORMATION
TOP VIEW
SHDN 1
LBO 2
LBI 3
GND 4
8 V
OUT
7 V
IN
6 C1
+
5 C1
–
V
IN
to GND ................................................ – 0.3V to 12V
V
OUT
to GND ............................................. – 0.3V to 12V
SHDN, LBI, LBO to GND ........................... – 0.3V to 12V
V
OUT
Short-Circuit Duration ............................. Indefinite
Operating Temperature Range
Commercial ............................................. 0°C to 70°C
Industrial ........................................... – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
ORDER PART
NUMBER
LTC1514CS8-3.3
LTC1514CS8-5
LTC1514IS8-3.3
LTC1514IS8-5
S8 PART MARKING
15143
15145
1514I3
1514I5
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 125°C,
θ
JA
= 110°C/ W
Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS
V
IN
= 2V to 10V, SHDN = 3V, C1 = 0.22µF, C
IN
= C
OUT
= 10µF, unless otherwise noted (Note 2).
PARAMETER
V
IN
Operating Voltage
V
OUT
(LTC1514-3.3)
V
OUT
(LTC1514-5)
V
IN
Operating Current
V
IN
Shutdown Current
Output Ripple
Switching Frequency
LBI Trip Point
LBI Trip Point Hysteresis
LBI Input Current
LBO V
OL
LBO Leakage Current
SHDN Input Threshold
SHDN Input Current
I
OUT
Short-Circuit Current
t
ON
LBI = 1.145V
I
SINK
= 100µA, V
IN
= 3V
V
LBO
= 5V, LBI = V
IN
V
IL
V
IH
SHDN = V
IN
SHDN = 0V
V
OUT
= 0V
Soft Start Turn-On Time
Note 2:
For V
IN
≥
8V, C
OUT
= 22µF.
q
q
q
q
q
q
q
q
CONDITIONS
LTC1514-3.3
LTC1514-5
2V
≤
V
IN
≤
8V, I
OUT
≤
15mA
3V
≤
V
IN
≤
8V, I
OUT
≤
50mA
2.7V
≤
V
IN
≤
10V, I
OUT
≤
15mA
3.3V
≤
V
IN
≤
10V, I
OUT
≤
50mA
V
IN
≤
5V, I
OUT
= 0, SHDN = 3V
V
IN
> 5V, I
OUT
= 0, SHDN = 3V
SHDN = 0V, V
IN
≤
5V
SHDN = 0V, V
IN
> 5V
Full Load (Note 2)
q
q
q
q
q
q
q
q
q
q
MIN
2.0
2.7
3.17
3.17
4.8
4.8
TYP
MAX
8
10
UNITS
V
V
V
V
V
V
µA
µA
µA
µA
mV
P-P
kHz
V
%
nA
V
µA
V
V
µA
µA
mA
ms
3.3
3.3
5
5
60
75
10
100
3.43
3.43
5.2
5.2
100
120
20
35
800
1.180
50
500
1.110
– 50
650
1.145
1
0.025
LBI Ramping Negative
q
0.4
1
–1
0.4
–1
–1
12
4
1
1
1.6
1
1
40
The
q
denotes specifications which apply over the full operating
temperature range.
Note 1:
Absolute Maximum Ratings are those values beyond which the life of
the device may be impaired.
2
U
W
U
U
W W
W
LINER [ LINEAR TECHNOLOGY ]
