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