LT1615/LT1615-1
ABSOLUTE
(Note 1)
AXI U RATI GS
PACKAGE/ORDER I FOR ATIO
TOP VIEW
SW 1
GND 2
FB 3
4 SHDN
5 V
IN
V
IN
, SHDN Voltage ................................................... 15V
SW Voltage .............................................................. 36V
FB Voltage .................................................................V
IN
Current into FB Pin ................................................. 1mA
Junction Temperature ........................................... 125°C
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
ORDER PART
NUMBER
LT1615ES5
LT1615ES5-1
S5 PART MARKING
LTIZ
LTKH
S5 PACKAGE
5-LEAD PLASTIC SOT-23
T
JMAX
= 125°C,
θ
JA
= 256°C/W
Consult factory for Industrial and Military grade parts.
ELECTRICAL CHARACTERISTICS
PARAMETER
Minimum Input Voltage
Quiescent Current
FB Comparator Trip Point
FB Comparator Hysteresis
Output Voltage Line Regulation
FB Pin Bias Current (Note 3)
Switch Off Time
Switch V
CESAT
Switch Current Limit
SHDN Pin Current
SHDN Input Voltage High
SHDN Input Voltage Low
Switch Leakage Current
Switch Off, V
SW
= 5V
1.2V < V
IN
< 12V
V
FB
= 1.23V
V
FB
> 1V
V
FB
< 0.6V
CONDITIONS
LT1615-1
LT1615
Not Switching
V
SHDN
= 0V
The
q
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 1.2V, V
SHDN
= 1.2V unless otherwise noted.
MIN
TYP
MAX
1.0
1.2
20
q
UNITS
V
V
µA
µA
V
mV
%/V
nA
ns
µs
30
1
1.255
0.1
80
1.205
1.23
8
0.05
q
30
400
1.5
85
250
75
300
100
350
2
8
0.9
I
SW
= 70mA (LT1615-1)
I
SW
= 300mA (LT1615)
LT1615-1
LT1615
V
SHDN
= 1.2V
V
SHDN
= 5V
120
350
125
400
3
12
0.25
0.01
5
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
The LT1615 and LT1615-1 are guaranteed to meet performance
specifications from 0°C to 70°C. Specifications over the
– 40°C to 85°C operating temperature range are assured by design,
characterization and correlation with statistical process controls.
Note 3:
Bias current flows into the FB pin.
2
U
mV
mV
mA
mA
µA
µA
V
V
µA
W
U
U
W W
W
LINER [ LINEAR TECHNOLOGY ]
