LT1171C View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LT1171C' PDF : 20 Pages View PDF
LT1170/LT1171/LT1172
TYPICAL APPLICATIO S
VIN
D3
+
C3
2.2µF
+
C5*
100µF
Positive Buck Converter
VIN
VSW
LT1170
FB
GND
VC
R3
470Ω
C1
1µF
D1
* REQUIRED IF INPUT LEADS ≥ 2"
** PULSE ENGINEERING 92114
COILTRONICS 50-2-52
L2
4µH
R1
3.74k
D2
1N914
OPTIONAL
OUTPUT
FILTER
+
R2
C2
1.24k
1µF
L1**
r
50µH
C4 +
1000µF
C5
200µF
R4
10Ω
5V, 4.5A
100mA
MINIMUM
1170/1/2 TA13
Negative Boost Regulator
D2
VIN
VSW
+
C4*
470µF
LT1170
FB
GND
VC
VIN
–15V
L1
50µH
R3
3.3k
C2
0.22µF
* REQUIRED IF INPUT LEADS ≥ 2"
R1
27k +
R2
1.24k
C3 +
10µF
D1
C1
1000µF
RO
(MINIMUM
LOAD)
VOUT
–28V, 1A
1170/1/2 TA14
Driving High Voltage NPN
C1
D2
VIN
LT1170
GND
R2**
R1*
Q1
D1
VSW
* SETS IB (ON)
** SETS IB (OFF)
1170/1/2 TA15
13
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