參數(shù)資料
型號(hào): LT1173CS8-5
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: Micropower DC/DC Converter Adjustable and Fixed 5V, 12V
中文描述: 1.5 A SWITCHING REGULATOR, 23 kHz SWITCHING FREQ-MAX, PDSO8
封裝: PLASTIC, SOIC-8
文件頁(yè)數(shù): 2/16頁(yè)
文件大?。?/td> 322K
代理商: LT1173CS8-5
LT1173
2
U
PACKAGE/ORDER U
LT1173CN8
LT1173CN8-5
LT1173CN8-12
A
U
G
W
A
W
U
W
A
R
BSOLUTE
XI
TI
S
Supply Voltage (V
IN
)................................................ 36V
SW1 Pin Voltage (V
SW1
).......................................... 50V
SW2 Pin Voltage (V
SW2
).............................–0.5V to V
IN
Feedback Pin Voltage (LT1173)................................. 5V
Sense Pin Voltage (LT1173, -5, -12) ....................... 36V
Maximum Power Dissipation............................. 500mW
Maximum Switch Current....................................... 1.5A
Operating Temperature Range.....................0
°
C to 70
°
C
Storage Temperature Range..................–65
°
C to 150
°
C
Lead Temperature, (Soldering, 10 sec.)................300
°
C
Consult factory for Industrial and Military grade parts
SYMBOL
I
Q
I
Q
PARAMETER
Quiescent Current
Quiescent Current, Boost
Mode Configuration
CONDITIONS
Switch Off
No Load LT1173-5
LT1173-12
Step-Up Mode
Step-Down Mode
LT1173 (Note 1)
LT1173-5 (Note 2)
LT1173-12 (Note 2)
LT1173
LT1173-5
LT1173-12
MIN
TYP
110
135
250
MAX
150
UNITS
G
μ
A
μ
A
μ
A
V
IN
Input Voltage
G
2.0
12.6
30
1.30
5.25
12.6
10
40
100
30
59
32
50
100
0.4
0.4
0.075
0.65
1.0
1.4
V
V
V
V
V
G
Comparator Trip Point Voltage
Output Sense Voltage
G
1.20
4.75
11.4
1.245
5.00
12.0
5
20
50
23
51
22
10
20
0.15
0.2
0.02
0.5
0.8
V
OUT
G
G
Comparator Hysteresis
Output Hysteresis
G
mV
mV
mV
kHz
%
μ
s
nA
nA
V
%/V
%/V
G
G
f
OSC
Oscillator Frequency
Duty Cycle
Switch ON Time
Feedback Pin Bias Current
Set Pin Bias Current
Gain Block Output Low
Reference Line Regulation
G
18
43
17
Full Load
I
LIM
tied to V
IN
LT1173, V
FB
= 0V
V
SET
= V
REF
I
SINK
= 100
μ
A, V
SET
= 1.00V
2.0V
V
IN
5V
5V
V
IN
30V
V
IN
= 3.0V, I
SW
= 650mA
V
IN
= 5.0V, I
SW
= 1A
G
t
ON
G
G
G
V
OL
G
G
G
V
SAT
SW
SAT
Voltage, Step-Up Mode
G
V
V
V
G
T
A
= 25
°
C, V
IN
= 3V, unless otherwise noted.
ELECTRICAL C
HARA TERISTICS
1
2
3
4
8
7
6
5
TOP VIEW
I
LIM
V
IN
SW1
SW2
FB (SENSE)*
SET
AO
GND
N8 PACKAGE
8-LEAD PLASTIC DIP
*FIXED VERSIONS
T
JMAX
= 90
°
C,
θ
JA
= 130
°
C/W
TOP VIEW
S8 PACKAGE
8-LEAD PLASTIC SOIC
*FIXED VERSIONS
T
JMAX
= 90
°
C,
θ
JA
= 150
°
C/W
1
2
3
4
8
7
6
5
I
LIM
V
IN
SW1
SW2
FB (SENSE)*
SET
AO
GND
LT1173CS8
LT1173CS8-5
LT1173CS8-12
S8 PART MARKING
1173
11735
117312
ORDER PART
NUMBER
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