LT1182/83/84 데이터 시트보기 (PDF) - Linear Technology
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LT1182/83/84 Datasheet PDF : 8 Pages
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LT1305
ABSOLUTE AXI U RATI GS
VIN Voltage .............................................................. 10V
SW1 Voltage ............................................................ 25V
FB Voltage ............................................................... 10V
Shutdown Voltage ................................................... 10V
LBO Voltage ............................................................. 10V
LBI Voltage .............................................................. 10V
Maximum Power Dissipation ............................. 500mW
Operating Temperature Range ..................... 0°C to 70°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
PACKAGE/ORDER I FOR ATIO
TOP VIEW
GND 1
LBO 2
SHDN 3
FB 4
8 PGND
7 SW
6 VIN
5 LBI
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 100°C, θJA = 80°C/ W
ORDER PART
NUMBER
LT1305CS8
S8 PART MARKING
1305
Consult factory for Industrial and Military grade parts.
ELECTRICAL CHARACTERISTICS TA = 25°C, VIN = 2.0V, unless otherwise noted.
SYMBOL PARAMETER
IQ
Quiescent Current
VIN
Input Voltage Range
DC
tON
VCESAT
Feedback Voltage
Comparator Hysteresis
Feedback Pin Bias Current
Oscillator Frequency
Oscillator TC
Maximum Duty Cycle
Switch On Time
Output Line Regulation
Switch Saturation Voltage
Switch Leakage Current
Peak Switch Current
VSHDNH
VSHDNL
ISHDN
LBI Trip Voltage
LBI Input Bias Current
LBO Output Low
LBO Leakage Current
Shutdown Pin High
Shutdown Pin Low
Shutdown Pin Bias Current
CONDITIONS
VSHDN = 0.5V, VFB = 2V
VSHDN = 1.8V
VFB = 1V
Current Limit Not Asserted
Current Limit Not Asserted
1.8V < VIN < 6V
ISW = 1A
VSW = 5V, Switch Off
VIN = 2V
VIN = 5V
(Note 2)
VLBI = 1V
ILOAD = 100µA
VLBI = 1.3V, VLBO = 5V
VSHDN = 5V
VSHDN = 2V
VSHDN = 0V
MIN TYP MAX
q
120 200
q
7
15
1.8
1.55
q 2.0
q 1.22 1.24 1.26
q
6
12.5
q
7
20
120 155 185
0.2
q 75
86
95
5.6
q
0.06 0.15
q
140 280
q
0.1
10
1.35
2
2.35
q 1.20
2.50
1.15
2.15
q 1.21 1.24 1.27
q
7
20
q
0.11
0.4
q
0.1
5
q 1.8
0.5
q
8.0
20
q
3.0
q
0.1
1
UNITS
µA
µA
V
V
V
mV
nA
kHz
%/°C
%
µs
%/V
mV
µA
A
A
A
V
nA
V
µA
V
V
µA
µA
µA
The q denotes specifications which apply over the 0°C to 70°C operating
temperature range.
Note 1: Hysteresis specified is DC. Output ripple may be higher if output
capacitance is insufficient or capacitor ESR is excessive.
Note 2: Low-battery detector comparator is inoperative when device is in
shutdown.
2
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