LTC1439 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
LTC1439
Linear Technology
'LTC1439' PDF : 32 Pages View PDF
LTC1438/LTC1439
TYPICAL APPLICATIONS
LTC1439 High Efficiency Low Noise 5V/3A, 3.3V/3.5A and 12V/200mA Regulator
VIN
6V TO 28V
CLP
RLP
0.01µF
10k
CSS1
0.1µF
1000pF
1
36
RUN/SS1 PLL LPF
2 SENSE+ 1
35
PLLIN
CC1A
220pF
1000pF
3 SENSE– 1 BOOST 1 34
CC1
1000pF
4
INTVCC
VPROG1
33
TGL1
5
32
ITH1
SW1
RC1
POR2
6
31
10k
COSC
56pF
POR2
TGS1
100k
7
LTC1439
30
COSC
VIN
8
SGND
29
BG1
110k, 1%
100pF
CC2A
470pF
390k, 1%
LBO
CC2 100k
1000pF
9
LBI
10
LBO
11
SFB1
28
INTVCC
27
PGND
26
BG2
RC
10k
12
ITH2
25
EXTVCC
13
VPROG2
24
TGS2
14
VOSENSE2
23
SW2
0.1µF
15 SENSE– 2
22
TGL2
1000pF
16 SENSE+ 2 BOOST 2 21
17
20
RUN/SS2 AUXON
CSS2
0.1µF
18
AUXDR
19
AUXFB
EXT
CLOCK
+ CIN1
22µF
MBRS1100T3
35V
0.1µF
×2
T1*
10µH
3.3µF +
25V
M1 1:1.8
RSENSE1
M3
0.03Ω
D2
+
CMDSH-3
D1
+ 4.7µF 16V
M2
MBRS140T3
VOUT1
5V/3A
COUT1
100µF
10V
×2
D4
CMDSH-3
M6
COUT2
M5
D3
MBRS140T3
+
100µF
10V × 2
L2
10µH
RSENSE2
0.03Ω
M4
0.1µF
AUX ON/OFF
VOUT1
VOUT2
3.3V
3.5A
CIN2
+
22µF
35V
×2
47k
4.7µF +
25V
MMBT
2907
VOUT2
12V
200mA
R6
1M
1%
R5
90.9k
1%
* T1 = DALE LPE-6562-A262 GAPPED E-CORE
1438 TA02
BH ELECTRONICS 501-0657 GAPPED TOROID
M1, M2, M4, M5 = IRF7403
M3, M6 = IRLML2803
L2 = SUMIDA CDRH125-100MC
ALL INPUT OUTPUT CAPACITORS ARE AVX-TPS SERIES
14389fb
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