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LT1110 Datasheet(PDF) 2 Page - Linear Technology

Part No. LT1110
Description  Micropower DC-DC Converter Adjustable and Fixed 5V, 12V
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Maker  LINER [Linear Technology]
Homepage  http://www.linear.com
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LT1110 Datasheet(HTML) 2 Page - Linear Technology

 
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LT1110
2
PACKAGE/ORDER I FOR ATIO
A
G
A
U
A
R
BSOLUTEXI
TI
S
Supply Voltage, Step-Up Mode ................................ 15V
Supply Voltage, Step-Down Mode ........................... 36V
SW1 Pin Voltage ...................................................... 50V
SW2 Pin Voltage ......................................... – 0.5V to VIN
Feedback Pin Voltage (LT1110) .............................. 5.5V
Switch Current ........................................................ 1.5A
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
ORDER PART
NUMBER
LT1110CN8
LT1110CN8-5
LT1110CN8-12
1110
11105
11012
Consult factory for Industrial and Military grade parts.
TJMAX = 90°C, θJA = 150°C/W
1
2
3
4
8
7
6
5
TOP VIEW
ILIM
VIN
SW1
SW2
FB (SENSE)*
SET
A0
GND
N8 PACKAGE
8-LEAD PLASTIC DIP
*FIXED VERSIONS
TJMAX = 90°C, θJA = 130°C/W
1
2
3
4
8
7
6
5
TOP VIEW
FB (SENSE)*
SET
A0
GND
ILIM
VIN
SW1
SW2
S8 PACKAGE
8-LEAD PLASTIC SOIC
*FIXED VERSIONS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IQ
Quiescent Current
Switch Off
q
300
µA
VIN
Input Voltage
Step-Up Mode
q
1.15
12.6
V
1.0
12.6
V
Step-Down Mode
q
30
V
Comparator Trip Point Voltage
LT1110 (Note 1)
q
210
220
230
mV
VOUT
Output Sense Voltage
LT1110-5 (Note 2)
q
4.75
5.00
5.25
V
LT1110-12 (Note 2)
q
11.4
12.00
12.6
V
Comparator Hysteresis
LT1110
q
48
mV
Output Hysteresis
LT1110-5
q
90
180
mV
LT1110-12
q
200
400
mV
fOSC
Oscillator Frequency
q
52
70
90
kHz
DC
Duty Cycle
Full Load (VFB < VREF)
q
62
69
78
%
tON
Switch ON Time
q
7.5
10
12.5
µs
IFB
Feedback Pin Bias Current
LT1110, VFB = 0V
q
70
150
nA
ISET
Set Pin Bias Current
VSET = VREF
q
100
300
nA
VAO
AO Output Low
IAO = –300µA, VSET = 150mV
q
0.15
0.4
V
Reference Line Regulation
1.0V
≤ VIN ≤ 1.5V
q
0.35
1.0
%/V
1.5V
≤ VIN ≤ 12V
q
0.05
0.1
%/V
ELECTRICAL C
C
HARA TERISTICS T
A = 25°C, VIN = 1.5V, unless otherwise noted.
S8 PART MARKING
LT1110CS8
LT1110CS8-5
LT1110CS8-12


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