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LT1619 Fiches technique(PDF) 20 Page - Linear Technology

No de pièce LT1619
Description  Low Voltage Current Mode PWM Controller
PDF  20 Pages
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Fabricant  LINER [Linear Technology]
Site Internet  http://www.linear.com
Logo LINER - Linear Technology

LT1619 Fiches technique(HTML) 20 Page - Linear Technology

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20
LT1619
1619fa
LT/TP 1002 1K REV A • PRINTED IN USA
©LINEAR TECHNOLOGY CORPORATION 2000
PART NUMBER
DESCRIPTION
COMMENTS
LT1370
500kHz, 6A Switching Regulator
Boost, Buck, Flyback, Forward, Inverting; 42V Switch Voltage
LT1372
500kHz, 1.5A Switching Regulator
SO-8, 2.7V
≤ VIN ≤ 30V, 42V Switch Voltage
LT1613
1.4MHz, SOT-23 DC/DC Converter
Fixed Frequency, 0.9V
≤ VIN ≤ 10V, 36V Switch Voltage
LTC1624
Switching Regulator Controller
SO-8, Drives N-Ch MOSFET, 3.5V
≤ VIN ≤ 36V
LT1680
Synchronous Boost Controller
Synchronous Operation for High Current/High Efficiency
LT1698
Isolated or Nonisolated 10W to 100W
50% Lower Cost than Quarter Brick and Half Brick Modules
Power Supply Solution with Multiple Outputs
Fits the Foot Print
LTC1871
No RSENSE Boost, Flyback, SEPIC Controller
2.5V
≤ VIN ≤ 36V, Current Mode Control, 50kHz to 1MHz
Adjustabe Frequency, MSOP-10
LTC1872
SOT-23 Boost Controller
550kHz Fixed Frequency, Current Mode
LT1946
1.2MHz, 65A DC/DC Converter
MSOP-8, 5V to 12V/400mA
LT3710/LT3781
Isolated or Nonisolated 10W to 100W
50% Lower Cost than Quarter Brick and Half Brick Modules
Power Supply Solution with Multiple Outputs
Fits the Foot Print
RELATED PARTS
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 q FAX: (408) 434-0507 q www.linear.com
TYPICAL APPLICATIO
VIN DRV
LT1619
GATE
SENSE
FB
S/S
14
R9
2.2k
C4, C5: VITRAMON VJ1825Y155MXB (1825/X7R)
C6: TAIYO YUDEN LMK325BJ106MN (1210/X7R)
C8: TAIYO YUDEN EMK316BJ105ML (1206/X7R)
T1: COILTRONICS VP1-0190 (ER11/5, 6 WINDINGS EACH 12.2
µH)
R7
30
Ω
D3
MBRS0530T1
Q3
MMFT3055VL
D2
MBRS340T3
Q1
FMMT3904
D4
1N4687
4.3V
LOW LEVEL
(IZT = 50µA)
C9
2.2nF
C8
1
µF
16V
C7
220pF
3
87
6
6
3
5
2
5
2
GND
VC
R8
0.015
Ω
R10
1.24k
1%
R5
100
Ω
R6
3.74k
1%
C1
0.022
µF
C6
10
µF
10V
VOUT
5V
0.5A
1619 TA01
C5
1.5
µF
100V
••
••
10
T1
7
11
8
4
1
12
9
••
C4
1.5
µF
100V
VIN
4V TO 28V
R3
5.6k
Figure 19. 2.5W, 4VIN-28VIN to 5V/0.5A Nonisolated Supply



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