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參數(shù)資料
| 型號： | LT3150CGN |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Fast Transient Response, Low Input Voltage, Very Low Dropout Linear Regulator Controller |
| 中文描述： | 0.8 A SWITCHING CONTROLLER, 1900 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SSOP-16 |
| 文件頁數(shù)： | 2/20頁 |
| 文件大?。?/td> | 263K |
| 代理商： | LT3150CGN |
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 ....................................
±
1mA
V
IN2
, I
POS
, I
NEG
....................................................... 22V
SHDN2.................................................................... V
IN2
Operating Ambient Temperature Range..... 0
°
C to 70
°
C
Junction Temperature (Note 2)........................... 125
°
C
Storage Temperature Range................ –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)................. 300
°
C
ABSOLUTEW
W
W
U
PACKAGE/ORDER U
U
W
GN PACKAGE
16-LEAD PLASTIC SSOP
1
2
3
4
5
6
7
8
TOP VIEW
16
15
14
13
12
11
10
9
SW
SWGND
V
IN1
SHDN2
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
°
C,
θ
JA
= 130
°
C/W,
θ
JC
= 40
°
C/W
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The
G
denotes specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25
°
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
Boost Switching Regulator
V
IN1
Minimum Operating Voltage
V
IN1
Maximum Operating Voltage
V
FB1
FB1 Reference Voltage
FB1 Input Bias Current
Current Flows into Pin
I
Q1
V
IN1
Quiescent Current
V
SHDN1
= 1.5V
V
IN1
Quiescent Current in Shutdown
V
SHDN1
= 0V, V
IN1
= 2V
V
SHDN1
= 0V, V
IN1
= 5V
FB1 Reference Line Regulation
1.5V
≤
V
IN1
≤
10V
Switching Frequency
Maximum Duty Cycle
Switch Current Limit
(Note 3)
Switch V
CESAT
I
SW
= 300mA
Switch Leakage Current
V
SW
= 5V
SHDN1 Input Voltage High
SHDN1 Input Voltage Low
SHDN1 Input Bias Current
V
SHDN1
= 3V, Current Flows into Pin
V
SHDN1
= 0V, Current Flows into Pin
Linear Regulator Controller
I
Q2
V
IN2
Quiescent Current
V
FB2
FB2 Reference Voltage
MIN
TYP
MAX
UNITS
0.9
1.1
10
1.255
80
4.5
0.5
1.0
0.2
1.9
V
V
V
G
1.20
1.23
27
3
0.01
0.01
0.02
1.4
86
800
300
0.01
G
nA
mA
μ
A
μ
A
%/V
MHz
G
1
G
82
550
%
mA
mV
μ
A
350
1
1
V
V
0.3
50
0.1
25
0.01
μ
A
μ
A
G
5
12
19
mA
1.203
1.198
1.210
1.210
0.01
–0.6
1.217
1.222
0.03
–4
V
V
G
FB2 Line Regulation
FB2 Input Bias Current
10V
≤
V
IN2
≤
20V
FB2 = V
FB2
,
Current Flows out of Pin
G
%/V
μ
A
G
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