LT1616 Просмотр технического описания (PDF) - Linear Technology
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LT1616 Datasheet PDF : 16 Pages
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LT1616
ABSOLUTE AXI U RATI GS
(Note 1)
Input Voltage (VIN) ................................................. 25V
BOOST Pin Voltage ................................................. 35V
BOOST Pin Above SW Pin ...................................... 25V
SHDN Pin ............................................................... 25V
FB Voltage ................................................................ 6V
Current Into FB Pin ............................................... ±1mA
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Maximum Junction Temperature .......................... 125°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
BOOST 1
GND 2
FB 3
TOP VIEW
6 SW
5 VIN
4 SHDN
S6 PACKAGE
6-LEAD PLASTIC SOT-23
TJMAX = 125°C, θJA = 250°C/ W
ORDER PART
NUMBER
LT1616ES6
S6 PART MARKING
LTNB
Consult factory for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.
VIN = 10V, VBOOST = 15V, unless otherwise noted. (Note 2)
PARAMETER
Undervoltage Lockout
Feedback Voltage
FB Pin Bias Current
Quiescent Current
Quiescent Current in Shutdown
Reference Line Regulation
Switching Frequency
Frequency Shift Threshold on FB Pin
Maximum Duty Cycle
Switch Current Limit
Switch VCESAT
Switch Leakage Current
Minimum Boost Voltage Above Switch
BOOST Pin Current
SHDN Input Voltage High
SHDN Input Voltage Low
SHDN Bias Current
CONDITIONS
VFB = Measured VREF + 10mV
Not Switching
VSHDN = 0V
VIN = 5V to 25V
VFB = 1.1V
fSW = 700kHz
(Note 3)
ISW = 300mA
ISW = 300mA
ISW = 300mA
VSHDN = 3V
VSHDN = 0V
MIN TYP MAX
3.35 3.6
q 1.225 1.25 1.275
q
150
600
1.9
2.5
0.01
2
0.005
q
1
1.4
1.8
0.44
q
80
87
630
850
220
350
10
1.6
2.5
7
12
1.8
0.4
8
15
0.01 0.1
UNITS
V
V
nA
mA
µA
%/V
MHz
V
%
mA
mV
µA
V
mA
V
V
µA
µA
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: The LT1616E 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 limit guaranteed by design and/or correlation to static test.
Slope compensation reduces current limit at higher duty cycle.
2
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