LT1110 Linear Technology, LT1110 Datasheet - Page 2

• Manufacturer Part Number: LT1110
• Description: Micropower DC-DC Converter Adjustable and Fixed 5V/ 12V
• Manufacturer: Linear Technology

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