LT3758 LINER [Linear Technology], LT3758 Datasheet - Page 36

• Manufacturer Part Number: LT3758
• Description: High Input Voltage, Boost, Flyback, SEPIC and Inverting Controller
• Manufacturer: LINER [Linear Technology]

LT3758
TYPICAL APPLICATIONS
RELATED PARTS
PART NUMBER
LT1619
LTC1624
LTC1871, LTC1871-1
LTC1871-7
LTC1872
LT1930
LT1931
LTC3704
LT3844
LT3757
LT3782A
LTC3803, LTC3803-3,
LTC3803-5
LTC3805, LTC3805-5
LT3845
LTC3872
No R
36
8V TO 72V
SENSE
V
IN
and ThinSOT are trademarks of Linear Technology Corporation.
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
L1A, L1B: COILTRONICS DRQ127-220
41.2k
300kHz
C
2.2μF
100V
X7R
x2
IN
DESCRIPTION
Current Mode PWM Controller
Current Mode DC/DC Controller
No R
No R
TSOT-23 Boost Controller
1.2MHz, SOT-23 Boost Converter
Inverting 1.2MHz, SOT-23 Converter
Positive-to-Negative DC/DC Controller
High Voltage, Current Mode Switching Regulator
Controller
Boost, Flyback, SEPIC and Inverting Controller
2-Phase Step-Up DC/DC Controller
Constant-Frequency, Current Mode DC/DC
Controller
Adjustable, Synchronizable Frequency, Current
Mode DC/DC Controller
Low I
Step-Down DC/DC Controller
No R
154k
32.4k
0.47μF
●
SENSE
SENSE
SENSE
8V to 72V Input, 12V Output SEPIC Converter
FAX: [phone]
Q
SHDN/UVLO
SYNC
, High Voltage Single Output Synchronous
RT
SS
VC
™ Boost, Flyback and SEPIC Controller
10k
Boost, Flyback and SEPIC Controller
Boost, Flyback and SEPIC Controller
10nF
LT3758
V
IN
GND INTV
SENSE
GATE
FBX
CC
C
4.7μF
10V
X5R
●
VCC
www.linear.com
L1A
•
M1
Si7456DP
0.012Ω
X7R, x2
2.2μF
100V
C
DC
MBRS3100T3G
•
L1B
D1
COMMENTS
300kHz Fixed Frequency, Boost, SEPIC, Flyback Topology; 1.9V ≤ V
V
SO-8 Package
2.5V ≤ V
Frequency from 50kHz to 1MHz, 5V Gate Drive
7V Gate Drive Version of LTC1871
550kHz Fixed Frequency, Current Mode, 2.5V ≤ V
2.6V ≤ V
Positive-to-Negative DC/DC Conversion, Miniature Design
No R
Wide Input Range: 4V to 60V
2.9V ≤ V
Operation Frequency, 3mm × 3mm DFN-10 and MSOP-10E Packages
6V ≤ V
Wide Input Range; Flyback, Boost and SEPIC Topologies, ThinSOT™
Package
V
and SEPIC Topologies
1.23V ≤ V
2.75V ≤ V
DFN-8 Packages
105k
1%
15.8k
1%
IN
IN
Up to 36V, 300kHz Operating Frequency; Buck, Boost, SEPIC Design,
and V
SENSE
+
IN
IN
IN
IN
≤ 40V, 4A Gate Drive, 150kHz to 500kHz
OUT
OUT
IN
, Current Mode Control, 50kHz to 1MHz
≤ 36V, Current Mode Control, Programmable Operating
≤ 16V, Up to 34V Output, 1A Switch Current
≤ 40V, Current Mode Control, 100kHz to 1MHz Programmable
C
47μF
20V
x2
3757 TA08a
≤ 9.8V, Current Mode Control, TSOT-23 and 2mm × 3mm
OUT1
Limited Only by External Components, Used in Flyback, Boost
≤ 36V, 4V ≤ V
C
10μF
16V
X5R
x4
OUT2
V
12V
2A
OUT
IN
≤ 60V, 120μA I
100
90
80
70
60
50
40
30
20
10
0.001
© LINEAR TECHNOLOGY CORPORATION 2009
Effi ciency vs Output Current
Q
V
IN
0.01
= 42V
IN
OUTPUT CURRENT (A)
≤ 9.8V
V
IN
= 8V
LT 0709 • PRINTED IN USA
0.1
V
IN
= 72V
1
IN
≤ 18V
3757 TA08b
3758f
10