LT1533
TYPICAL APPLICATIONS
Hysteretic Loop Lowers Quiescent Current to 100碌A While
Maintaining Low Output Noise. See AN70 for Details
2.7V TO 4V
(3 Ni-Cd BATTERIES)
+
4.7碌F
11
3
3300pF
4
5
18k
6
SHDN
DUTY
SYNC
C
T
R
T
R
CSL
10
0.01碌F
V
C
GND
9
NFB
8
FB
12 15k
7
C1
LTC1440
10pF
1.18V
V
Z
INTERNAL
TO LTC1440
L1, L3: COILTRONICS CTX100-3
L2: 22nH TRACE INDUCTANCE, FERRITE BEAD OR
INDUCTOR COILCRAFT B-07T TYPICAL
T1: CTX02-13665-X1
A 50V Output Low Noise Regulator. Cascoded Bipolar Transistors
Accommodate 60V Transformer Swings, Permitting 24V (20V
IN
to 30V
IN
)
Powered Operation. See AN70 for Details
68鈩?/div>
0.003碌F
3.3k
MUR110
Q1
10k
Q3
1N4148
1N752
5.6V
11
3
SHDN
DUTY
SYNC
C
T
LT1533
6
R
T
R
VSL
R
CSL
10
0.01碌F
V
C
GND
9
NFB
8
FB
PGND
14
V
IN
COL A
COL B
2
15
L2
16
13 15k
12 15k
360鈩?/div>
7
2.49k
1%
Q2
3.3k
97.6k
1%
68鈩?/div>
0.003碌F
1553 TA06
24V
(20V TO 30V)
360鈩?/div>
T1
+
47碌F
+
1碌F
3300pF
4
5
18k
L1: COILTRONICS CTX100-3
L2: 22nH TRACE INDUCTANCE, FERRITE BEAD OR
INDUCTOR COILCRAFT B-07T TYPICAL
Q1, Q2: ZETEX ZTX-853
Q3: 2N2222A
T1: CTX02-13665-X1
鈥?/div>
+
U
14
V
IN
COL A
COL B
PGND
LT1533
R
VSL
2
15
L2
16
T1
1N4148
L1
100碌H 12V
1N4148
OPTIONAL FOR
L3
100碌H LOWEST RIPPLE
(
)
+
47碌F
+
47碌F
5V
13 15k
21.5k
1%
2.32k
1%
150k
1553 TA05
L1
100碌H
MUR110
50V
OPTIONAL FOR
100碌H LOWEST RIPPLE
(
)
+
47碌F
+
47碌F
17
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LT1533C相關型號PDF文件下載
-
型號
版本
描述
廠商
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