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LT1619 数据表(PDF) 14 Page - Linear Technology

部件名 LT1619
功能描述  Low Voltage Current Mode PWM Controller
PDF  20 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LT1619 数据表(HTML) 14 Page - Linear Technology

Back Button LT1619 Datasheet HTML 10Page - Linear Technology LT1619 Datasheet HTML 11Page - Linear Technology LT1619 Datasheet HTML 12Page - Linear Technology LT1619 Datasheet HTML 13Page - Linear Technology LT1619 Datasheet HTML 14Page - Linear Technology LT1619 Datasheet HTML 15Page - Linear Technology LT1619 Datasheet HTML 16Page - Linear Technology LT1619 Datasheet HTML 17Page - Linear Technology LT1619 Datasheet HTML 18Page - Linear Technology Next Button
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background image
14
LT1619
1619fa
APPLICATIO S I FOR ATIO
S/S
FB
VC
GND
8
7
6
5
1
2
3
4
VIN
DRV
GATE
SENSE
LT1619
+
RC
75k
CZ
15nF
CIN1: SANYO POSCAP 6TPB150M ×2
COUT1: SANYO POSCAP 10TPB220M ×4
D1: MOTOROLA MBRB1545CT
L1: SUMIDA CEPH149-1R0
RSENSE: PANASONIC 0.002Ω 1W
CIN2
1
µF
CERAMIC
CIN1
300
µF
+
COUT1
220
µF
×4
L1
1
µH
VIN
3.3V
D1
M1
FDS6680A
×2
CDRV
0.1
µF
CERAMIC
CP
150pF
RSENSE
COUT2
10
µF
CERAMIC
R1
37400
Ω
5V
8A
1619 F15a
R2
12400
Ω
Figure 15a. 3.3V to 5V/8A Boost Converter
LOAD CURRENT (A)
0.01
83
87
88
89
0.1
1
10
1619 F15b
86
85
84
VIN = 3.3V
Figure 15b. Efficiency of the 5V/8A Boost Converter



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