LT1301 Просмотр технического описания (PDF) - Linear Technology
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LT1301 Datasheet PDF : 12 Pages
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LT1301
ABSOLUTE MAXIMUM RATINGS
VIN Voltage .............................................................. 10V
SW1 Voltage ............................................................ 20V
Sense Voltage .......................................................... 20V
Shutdown Voltage ................................................... 10V
Select Voltage .......................................................... 10V
ILIM Voltage ............................................................ 0.5V
Maximum Power Dissipation ............................. 500mW
Operating Temperature Range
LT1301C ................................................... 0°C to 70°C
LT1301I .................................................. 40°C to 85°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
PACKAGE/ORDER INFORMATION
GND 1
SEL 2
SHDN 3
SENSE 4
TOP VIEW
8 PGND
7 SW
6 VIN
5 ILIM
N8 PACKAGE
S8 PACKAGE
8-LEAD PLASTIC DIP 8-LEAD PLASTIC SOIC
TJMAX = 100°C, θJA = 150°C/ W
ORDER PART
NUMBER
LT1301CN8
LT1301CS8
LT1301IS8
S8 PART MARKING
1301
1301I
ELECTRICAL CHARACTERISTICS TA = 25°C, VIN = 2V unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
IQ
Quiescent Current
VIN
Input Voltage Range
VOUT
Output Sense Voltage
DC
tON
VCESAT
VSHDNH
VSHDNL
VSELH
VSELL
ISHDN
Output Referred
Comparator Hysteresis
Oscillator Frequency
Oscillator TC
Maximum Duty Cycle
Switch On-Time
Output Line Regulation
Switch Saturation Voltage
Switch Leakage Current
Peak Switch Current
(Internal Trip Point)
Shutdown Pin High
Shutdown Pin Low
Select Pin High
Select Pin Low
Shutdown Pin Bias Current
ISEL
Select Pin Bias Current
VSHDN = 0.5V, VSEL = 5V, VSENSE = 5.5V
VSHDN = 1.8V
VSEL = 5V
VSEL = 0V
VSEL = 5V (Note 1)
VSEL = 0V (Note 1)
Current Limit not Asserted.
Current Limit not Asserted.
1.8V < VIN < 6V
ISW = 700mA
VSW = 5V, Switch Off
ILIM Floating (See Typical Application)
ILIM Grounded
VSHDN = 5V
VSHDN = 2V
VSHDN = 0V
0V < VSEL < 5V
q
120 200
q
7
15
1.8
q
2.0
q
11.52 12.00 12.48
q
4.75 5.00 5.25
q
50 100
q
22 50
120 155 185
0.2
75 86 95
5.6
q
0.06 0.15
q
130 200
q
0.1 10
0.75 1.0 1.25
0.4
q
1.8
0.5
q
1.5
q
0.8
q
8
20
q
3
q
0.1 1
q
1
3
The q denotes specifications which apply over the 0°C to 70°C
temperature range.
Note 1: Hysteresis specified is DC. Output ripple may be higher if
output capacitance is insufficient or capacitor ESR is excessive.
See operation section.
UNITS
µA
µA
V
V
V
V
mV
mV
kHz
%/ °C
%
µs
%/V
mV
µA
A
A
V
V
V
V
µA
µA
µA
µA
2
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