LTC1159 查看數據表（PDF） - Linear Technology
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LTC1159 Datasheet PDF : 20 Pages
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LTC1159
LTC1159-3.3/LTC1159-5
TYPICAL APPLICATIO S
VIN
5V
8V TO 20V
1N4148
1N4148
IRF7205
+ 47µF
25V × 2
OS-CON
1µF
WIMA
1
P-GATE
CAP 16
0.1µF
0.15µF
2
VIN
3
VCC
15
SHDN2
EXTVCC 14
+
3.3µF
1000pF
0.047µF
4
P-DRIVE
N-GATE 13
5
LTC1159
12
VCC
PGND
6
CT
SGND 11
7
ITH
VFB 10
8 SENSE–
SENSE+ 9
2k
10k
SHUTDOWN
IRF7201
L*
15µH
RSENSE**
1 0.02Ω 2
3
4
VOUT
2.5V/5A
IRF7201 MBRS330
+ 330µF
6.3V × 3
AVX
100pF
1000pF
10k
10k
1%
1%
100Ω
100Ω
LTC1159 • F10
*MAGNETICS 77120-A7 CORE, 16T 18GA. WIRE
**KRL SL-1-R020J
Figure 10. High Efficiency 8V to 20V Input 2.5/5A Output Regulator
1N4148
1N4148
1
P-GATE
CAP 16
0.1µF
0.15µF
2
VIN
3
VCC
SHDN2 15
14
EXTVCC
4
P-DRIVE
13
N-GATE
+
1µF
5
LTC1159-3.3
12
VCC
PGND
6
CT
11
SGND
270pF
3300pF
7
ITH
8 SENSE–
SHDN1 10
SENSE+ 9
1k
*COILTRONICS CTX20-4
**KRL SL-1/2-R040J
VIN
4V TO 20V
+
Si9435DY
47µF
25V
OS-CON
0.1µF
L*
20µH
RSENSE**
1 0.04Ω 2
3
4
VOUT
3.3V/2.5A
VN2222LL BAT85
Si9410DY
MBRS130LT3
BAT85
0.22µF
BAT85
+
1µF
+ 330µF
6.3V × 2
AVX
SHUTDOWN
0.01µF
LTC1159 • F11
Figure 11. 5:1 Input Range (4V to 20V) High Efficiency 3.3V/2.5A Regulator
16
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