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3507 Datasheet(PDF) 26 Page - Linear Technology

Part # 3507
Description  Triple Monolithic Step-Down Regulator with LDO
PDF  28 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

3507 Datasheet(HTML) 26 Page - Linear Technology

Back Button 3507 Datasheet HTML 20Page - Linear Technology 3507 Datasheet HTML 21Page - Linear Technology 3507 Datasheet HTML 22Page - Linear Technology 3507 Datasheet HTML 23Page - Linear Technology 3507 Datasheet HTML 24Page - Linear Technology 3507 Datasheet HTML 25Page - Linear Technology 3507 Datasheet HTML 26Page - Linear Technology 3507 Datasheet HTML 27Page - Linear Technology 3507 Datasheet HTML 28Page - Linear Technology  
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LT3507
26
3507f
TYPICAL APPLICATIONS
15V, 1.8V and 1.2V 2-Stage Step Down
VIN1
BOOST1
UVLO
OVLO
PGOOD2
PGOOD3
BOOST 2
SW2
FB2
VC2
BOOST3
SW3
FB3
TRK/SS2
TRK/SS3
PGOOD1
SW1
FB1
VC1
TRK/SS1
BIAS
0.1μF
22μF
D1
68.1k
31.6k
220pF
0.01μF
187k
L1 10μH
VOUT1
15V
0.4A
VBST
3V
VIN
21V TO 36V
L2 3.3μH
VIN2 VIN3 VINSW
49.9k
3.4k
UVLO = 19V
11.5k
10.5k
10μF
DRIVE
FB4
TRK/SS4
RT/SYNC
VC3
GND
LT3507
RUN1
RUN2
RUN3
0.1μF
33μF
PGOOD
VBST
D2
13.3k
SHDN
1000pF
D1: DIODES, INC. B140A
D2, D3: DIODES, INC. B240A
L1: TDK LTF5022T-100M1R4
L2: TDK VLCF5020T-3R3N2R0-1
L3: TDK VLCF5020T-2R2N1R7
Q1: DIODES INC. BC817-16
18.2k
100k
3507 TA04
54.9k
fSW = 800kHz
VOUT2
1.8V
1.5A
22.6k
VOUT2
L3 2.2μH
0.1μF
47μF
VBST
D3
12.7k
1000pF
30.1k
270pF
2.2μF
Q1
VOUT3
1.2V
1.5A
15.0k



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