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