2
LT3150
3150f
(Note 1)
V
IN1
, SHDN1 Voltage .............................................. 10V
SW Voltage.............................................. 0.4V to 36V
FB1 Voltage ................................................ V
IN1
+ 0.3V
Current into FB1, FB2 Pin .................................... ?mA
V
IN2
, I
POS
, I
NEG
....................................................... 22V
SHDN2.................................................................... V
IN2
Operating Ambient Temperature Range..... 0癈 to 70癈
Junction Temperature (Note 2)........................... 125癈
Storage Temperature Range................ 65癈 to 150癈
Lead Temperature (Soldering, 10 sec)................. 300癈
ABSOLUTE AXI U RATI GS
W
W
U
ACKAGE/ORDER I FOR ATIO
U
W
GN PACKAGE
1 -LEAD PLA TI
P
1
2
3
4
5
6
7
8
TOP VIEW
16
15
14
13
12
11
10
9
SW
WGND
V
IN1
HDN2
V
IN2
GND
NC
FB2
FB1
GND
SHDN1
I
POS
I
NEG
GATE
NC
COMP
ORDER PART
NUMBER
LT3150CGN
GN PART
MARKING
3150
T
JMAX
= 125癈, ?/DIV>
JA
= 130癈/W, ?/DIV>
JC
= 40癈/W
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25?/SPAN>C.
V
IN1
= 1.5V, V
SHDN1
= V
IN1
, V
IN2
= 12V, GATE = 6V, I
POS
= I
NEG
= 5V, V
SHDN2
= 0.75V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Boost Switching Regulator
V
IN1
Minimum Operating Voltage
0.9
1.1
V
V
IN1
Maximum Operating Voltage
10
V
V
FB1
FB1 Reference Voltage
q
1.20
1.23
1.255
V
FB1 Input Bias Current
Current Flows into Pin
q
27
80
nA
I
Q1
V
IN1
Quiescent Current
V
SHDN1
= 1.5V
3
4.5
mA
V
IN1
Quiescent Current in Shutdown
V
SHDN1
= 0V, V
IN1
= 2V
0.01
0.5
礎(chǔ)
V
SHDN1
= 0V, V
IN1
= 5V
0.01
1.0
礎(chǔ)
FB1 Reference Line Regulation
1.5V d V
IN1
d 10V
0.02
0.2
%/V
Switching Frequency
q
1
1.4
1.9
MHz
Maximum Duty Cycle
q
82
86
%
Switch Current Limit
(Note 3)
550
800
mA
Switch V
CESAT
I
SW
= 300mA
300
350
mV
Switch Leakage Current
V
SW
= 5V
0.01
1
礎(chǔ)
SHDN1 Input Voltage High
1
V
SHDN1 Input Voltage Low
0.3
V
SHDN1 Input Bias Current
V
SHDN1
= 3V, Current Flows into Pin
25
50
礎(chǔ)
V
SHDN1
= 0V, Current Flows into Pin
0.01
0.1
礎(chǔ)
Linear Regulator Controller
I
Q2
V
IN2
Quiescent Current
q
5
12
19
mA
V
FB2
FB2 Reference Voltage
1.203
1.210
1.217
V
q
1.198
1.210
1.222
V
FB2 Line Regulation
10V d V
IN2
d 20V
q
0.01
0.03
%/V
FB2 Input Bias Current
FB2 = V
FB2
,
Current Flows out of Pin
q
0.6
4
礎(chǔ)
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