LT1615ES5-1 Datasheet, PDF (2/8 Pages) Linear Technology – Micropower Step-Up DC/DC Converters in ThinSOT

LT1615/LT1615-1
ABSOLUTE AXI U RATI GS
(Note 1)
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
UW U
PACKAGE/ORDER I FOR ATIO
ORDER PART
NUMBER
SW 1
GND 2
FB 3
TOP VIEW
5 V_IN
4 SHDN
LT1615ES5
LT1615ES5-1
LT1615IS5
LT1615IS5-1
S5 PACKAGE
5-LEAD PLASTIC SOT-23
T_JMAX = 125°C, θ_JA = 256°C/W
S5 PART MARKING
LTIZ
LTKH
LTXZ
LTBHT
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS 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.
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
CONDITIONS
LT1615-1
LT1615
Not Switching
V_SHDN = 0V
1.2V < V_IN < 12V
V_FB = 1.23V
V_FB > 1V
V_FB < 0.6V
I_SW = 70mA (LT1615-1)
I_SW = 300mA (LT1615)
LT1615-1
LT1615
V_SHDN = 1.2V
V_SHDN = 5V
Switch Off, V_SW = 5V
MIN TYP MAX UNITS
1.0
V
1.2
V
20
30
µA
1
µA
q 1.205 1.23 1.255
V
8
mV
0.05
0.1
%/V
q
30
80
nA
400
ns
1.5
µs
85
120
mV
250 350
mV
75
100 125
mA
300 350 400
mA
2
3
µA
8
12
µA
0.9
V
0.25
V
0.01
5
µA
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LT1615E and LT1615E-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. The
LT1615I/LT1615I-1 is guaranteed to meet performance specifications over
the –40°C to 85°C operating temperature range.
Note 3: Bias current flows into the FB pin.
sn16151 16151fas
2