LTC1143 Linear Technology, LTC1143 Datasheet - Page 18
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LTC1143
Manufacturer Part Number
LTC1143
Description
Dual High Efficiency SO-16 Step-Down Switching Regulator Controllers
Manufacturer
Linear Technology
Datasheet
1.LTC1143.pdf
(20 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LTC1143CS
Manufacturer:
LT/凌特
Quantity:
20 000
Company:
Part Number:
LTC1143LCS#PBF
Manufacturer:
LTC
Quantity:
247
Company:
Part Number:
LTC1143LCSADJTR
Manufacturer:
STM
Quantity:
6 877
3.3V/2A
LTC1143/LTC1143L
LTC1143L-ADJ
18
TYPICAL APPLICATIONS
V
220 F
C
OUT1
OUT1
10V
2
C
C
L1: SUMIDA CDRH125-270
L2: PULSE ENGINEERING PE-53718
IN1
OUT1
R
, C
+
0.05
SENSE1
, C
IN2
82.5k
49.9k
OUT2
: AVX TPSD226K025R0200
1%
1%
R1
R2
: AVX TPSE227M010R0100
+
MBRS130L
C
22 F
25V
IN1
27 H
2
L1
D1
P1
1000pF
100pF
0.22 F
16
4
1
2
U
SENSE
P-DRIVE 1
SENSE
V
GND1
P1, P2: SILICONIX Si9803DY
R
R
Z1: MMBZ5231B
FB1
V
SENSE1
SENSE2
IN1
3
13
Figure 12. Dual 3.3V/5V Buck-Boost Regulator
300pF
+
–
C
1
1
T1
: IRC 1206-R050F
: IRC 1206-R082F
C
T1
14
I
TH1
15
R
1k
C1
C
3300pF
LTC1143L-ADJ
3.5V TO 10V
C1
V
IN
I
TH2
7
R
1k
C2
C
3300pF
C2
C
T2
6
C
180pF
P-DRIVE 2
T2
SENSE
SENSE
GND2
5
V
IN2
V
11
FB2
+
–
2
2
8
10
9
12
0.22 F
1000pF
100pF
MMBT2222ALT1
P2
R
0.082
L2A
SENSE2
220 F
10V
+
OVERVOLTAGE
PROTECTION
D2
MBRS130L
L2B
R4
150k
1%
R3
49.9k
1%
+
1k
Z1
5.1V
C
22 F
25V
1143 F12
IN2
2
C
220 F
10V
V
5V/1A
OUT2
OUT2