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LTC1872 Datasheet(PDF) 36 Page - Linear Technology

Part # LTC1872
Description  Wide Input Range, No RSENSE Current Mode Boost, Flyback and SEPIC Controller
PDF  36 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1872 Datasheet(HTML) 36 Page - Linear Technology

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LTC1871
36
1871fe
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2001
LT 0108 REV E • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
High Power SLIC Supply with Undervoltage Lockout
(Also See the LTC3704 Data Sheet)
+
RUN
ITH
FB
FREQ
MODE/SYNC
SENSE
VIN
INTVCC
GATE
GND
LTC1871
RT
120k
f = 200kHz
*COILTRONICS VP5-0155
(PRIMARY = 3 WINDINGS IN PARALLEL)
C1
4.7μF
X5R
+
CIN
220μF
16V
TPS
C3
10μF
25V
X5R
IRL2910
RS
0.012Ω
C8
0.1μF
D3
10BQ060
5
•
•
VIN
7V TO 12V
T1*
1, 2, 3
RC
82k
CC1
1nF
CC2
100pF
CR
1nF
R1
49.9k
1%
R2
150k
1%
D4
10BQ060
6
•
D2
10BQ060
4
•
C4
10μF
25V
X5R
COUT
3.3μF
100V
GND
VOUT1
–24V
200mA
VOUT2
–72V
200mA
C5
10μF
25V
X5R
4
3
1871 TA06
2
6
1
10k
RF1
10k
1%
RF2
196k
1%
C2
4.7μF
50V
X5R
LT1783
PART NUMBER
DESCRIPTION
COMMENTS
LT
®1619
Current Mode PWM Controller
300kHz Fixed Frequency, Boost, SEPIC, Flyback Topology
LTC1624
Current Mode DC/DC Controller
SO-8; 300kHz Operating Frequency; Buck, Boost, SEPIC Design;
VIN Up to 36V
LTC1700
No RSENSE Synchronous Step-Up Controller
Up to 95% Efficiency, Operation as Low as 0.9V Input
LTC1871-7
Wide Input Range Controller
No RSENSE, 7V Gate Drive, Current Mode Control
LTC1872
SOT-23 Boost Controller
Delivers Up to 5A, 550kHz Fixed Frequency, Current Mode
LT1930
1.2MHz, SOT-23 Boost Converter
Up to 34V Output, 2.6V ≤ VIN ≤ 16V, Miniature Design
LT1931
Inverting 1.2MHz, SOT-23 Converter
Positive-to-Negative DC/DC Conversion, Miniature Design
LTC3401/LTC3402
1A/2A 3MHz Synchronous Boost Converters
Up to 97% Efficiency, Very Small Solution, 0.5V ≤ VIN ≤ 5V
LTC3704
Positive-to-Negative DC/DC Controller
No RSENSE, Current Mode Control, 50kHz to 1MHz
LT3782
2-Phase Step-Up DC/DC Controller
6V ≤ VIN ≤ 40V; 4A Gate Drive, 150kHz to 500kHz



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