LT1317CS8 Linear Technology, LT1317CS8 Datasheet - Page 3

• Manufacturer Part Number: LT1317CS8
• Description: IC BOOST ADJ .5A 8SOIC
• Manufacturer: Linear Technology
• Type: Step-Up (Boost)r

Specifications of LT1317CS8

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.24 ~ 30 V
• Current - Output: 500mA
• Frequency - Switching: 620kHz
• Voltage - Input: 1.5 ~ 12 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

Commercial Grade
SYMBOL
The
temperature range.
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
ELECTRICAL C
Industrial Grade
SYMBOL
I
V
I
g
f
Q
B
OSC
m
FB
denotes specifications which apply over the full operating
PARAMETER
Shutdown Pin Current
LBI Threshold Voltage
LBO Output Low
LBO Leakage Current
LBI Input Bias Current (Note 4)
Low-Battery Detector Gain
Switch Leakage Current
Switch V
Reference Line Regulation
SHDN Input Voltage High
SHDN Input Voltage Low
PARAMETER
Quiescent Current
Feedback Voltage
FB Pin Bias Current (Note 2)
Input Voltage Range
Error Amp Transconductance
Maximum Duty Cycle
Switch Current Limit (Note 3)
Switching Frequency
Shutdown Pin Current
LBI Threshold Voltage
LBO Output Low
LBO Leakage Current
LBI Input Bias Current (Note 4)
Switch Leakage Current
Switch V
Reference Line Regulation
SHDN Input Voltage High
SHDN Input Voltage Low
CE
CE
V
Sat
Sat
IN
V
IN
= 2V, V
HARA TERISTICS
= 2V, V
SHDN
SHDN
= 2V, – 40 C T
C
= 2V, T
A
= 25 C unless otherwise noted.
A
85 C unless otherwise noted.
CONDITIONS
V
V
I
V
V
1M Load
V
I
1.8V V
CONDITIONS
Not Switching, V
V
V
V
V
V
I
V
V
V
I
1.8V V
SINK
SW
SINK
SW
SHDN
SHDN
LBI
LBI
SW
SHDN
SHDN
IN
SHDN
SHDN
LBI
LBI
SW
I = 5 A
= 2.5V, Duty Cycle = 30%
= 500mA
= 500mA
= 250mV, V
= 150mV
= 5V
= 250mV, V
= 150mV
= 5V
= 10 A
= 10 A
= V
= 0V
= 0V (LT1317/LT1317B)
= 2V, Switching (LT1317B)
= V
= 0V
IN
IN
IN
IN
12V
12V
Note 2: Bias current flows into FB pin.
Note 3: Switch current limit guaranteed by design and/or correlation to
static tests. Duty cycle affects current limit due to ramp generator.
Note 4: Bias current flows out of LBI pin.
LBO
LBO
SHDN
= 5V
= 5V
= 2V (LT1317)
MIN
1.20
190
180
MIN
550
500
180
1.4
1.7
1.4
70
80
LT1317/LT1317B
0.015
2000
– 2.3
TYP
0.15
0.02
0.01
0.08
200
200
300
TYP
140
5
MAX
0.06
1350
0.25
0.15
MAX
210
220
350
400
1.26
0.25
0.15
0.1
0.4
160
240
750
220
400
– 6
7.5
0.1
0.1
0.4
40
– 7
40
80
12
60
3
6
3
6
UNITS
UNITS
mhos
3
%/V
%/V
V/V
mV
mV
mV
mV
kHz
mA
mA
mV
mV
nA
nA
nA
%
A
A
V
A
A
V
V
A
A
V
V
A
A
V
A
A
V
V