LT3464 データシートの表示（PDF） - Linear Technology
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LT3464 Datasheet PDF : 16 Pages
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LT3464
ABSOLUTE AXI U RATI GS
(Note 1)
VIN, SHDN, CTRL Voltage ........................................ 10V
OUT, CAP Voltage .................................................... 36V
SW Voltage .............................................................. 36V
FB Voltage ................................................................. 6V
Maximum 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
TOP VIEW
CTRL 1
FB 2
OUT 3
GND 4
8 SHDN
7 VIN
6 SW
5 CAP
TS8 PACKAGE
8-LEAD PLASTIC SOT-23
TJMAX = 125°C, θJA = 140°C/W, θJC = 85°C/W
ORDER PART
NUMBER
LT3464ETS8
TS8 PART MARKING
LTG2
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 TA = 25°C. VIN = 3.6V, unless otherwise noted. (Note 2)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Minimum Input Voltage
2.0
2.3
V
Quiescent Current
FB Comparator Trip Voltage
FB Comparator Hysteresis
Not Switching
VSHDN = 0.2V
VFB Falling, VCTRL = 3.6V
25
36
µA
0.01
0.5
µA
q 1.215 1.250 1.275
V
10
mV
FB Pin Bias Current
FB Voltage Line Regulation
Switch Off Time
Switch Leakage Current
Switch VCESAT
Switch Current Limit
VFB = 1.25V, VCTRL = 3.6V
2.3V < VIN < 10V
VCAP-VIN = 5V
VCAP-VIN = 0V
VSW = 36V
ISW = 80mA
q
3
30
nA
0.05
0.1
%/V
250
ns
1.0
µs
0.02
1
µA
190 300
mV
85
115 140
mA
Schottky Forward Voltage
Schottky Reverse Leakage
PNP Disconnect VCAP-OUT
PNP Disconnect Q Current
PNP Disconnect Leakage
PNP Disconnect Current Limit
SHDN Pin Current
SHDN Input Voltage High
ISCHOTTKY = 110mA
VCAP-SW = 36V
IOUT = 200µA
IOUT = 10mA
IOUT = 0, VCAP = 36V (Note 3)
SHDN = 0.2, VCAP = 10V, VOUT = 0V
VCAP = 10V, VOUT = 0V
VSHDN = 3.6V
600 750
mV
1
10
µA
100
mV
190
mV
1.5
5
µA
0.1
5
µA
25
45
75
mA
5
10
µA
2.3
V
SHDN Input Voltage Low
0.2
V
CTRL Pin Bias Current
CTRL to FB Offset
VCTRL = 0.5V, VFB = 1V
VCTRL = 0.5V (Note 4)
q
6
80
nA
2
7
mV
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LT3464E is 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: Current consumed by Disconnect PNP when there is no load on
the OUT pin.
Note 4: This figure is computed according to ((VFB falling + VFB rising)/2)
–VCONTROL.
3464f
2
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