LT3489 Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Fabricante
LT3489 Datasheet PDF : 12 Pages
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LT3489
TYPICAL APPLICATIO S
8V Output Boost Converter
VIN
3.3V TO 5V
L1
2.2µH
D1
6
5
3 VIN
SW
OFF ON SHDN
+
C1
4.7µF
8
SS
LT3489
7
COMP
2
FB
VC
GND
CSS
100nF
1
4
RC
35.7k
CC
330pF
C1: AVX 08056D475KAT
C2: 2 × 10µF, TAIYO YUDEN LMK3168BJ106ML
D1: DIODES INC. DFLS220L
L1: COOPER BUSSMANN SD25-2R2
*EXPOSED PAD MUST ALSO BE GROUNDED
R1
28.7k
R2
5.23k
VOUT
650mA, VIN = 3.3V
1.1A, VIN = 5V
C2
20µF
3489 TA02
Efficiency
90
85
80
75
70
65
60
55
VIN = 3.3V
VIN = 5V
50
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1
LOAD CURRENT (A)
3489 TA09
Transient Response
VOUT
100mV/DIV
AC COUPLED
IL1
1A/DIV
400mA
IOUT
200mA
VIN = 3.3V
50µs/DIV
3489 G10
3489f
8
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