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LTC3459 Просмотр технического описания (PDF) - Linear Technology
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Компоненты Описание
производитель
LTC3459
10V Micropower Synchronous Boost Converter
Linear Technology
LTC3459 Datasheet PDF : 12 Pages
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LTC3459
TYPICAL PERFORMANCE CHARACTERISTICS
(T
A
= 25°C, unless otherwise noted).
V
OUT
AC Ripple
V
OUT
50mV/DIV
INDUCTOR
CURRENT
50mA/DIV
V
IN
= 3.3V
V
OUT
= 5V
L = 22μH
C
OUT
= 4.7μF
C
FF
= 47pF
5μs/DIV
Burst Cycle
SW
CURRENT
50mA/DIV
INDUCTOR
CURRENT
50mA/DIV
3459 G10
V
IN
= 5V
V
OUT
= 10V
L = 22μH
1μs/DIV
V
OUT
Regulated Below
V
IN
Burst Cycle
Shorted Output
SW
CURRENT
50mA/DIV
INDUCTOR
CURRENT
50mA/DIV
V
IN
= 5V
V
OUT
= 3.5V
L = 22μH
1μs/DIV
SW
CURRENT
50mA/DIV
INDUCTOR
CURRENT
50mA/DIV
3459 G13
V
IN
= 5V
V
OUT
= 0V
L = 22μH
500ns/DIV
Burst Cycle
SW
CURRENT
50mA/DIV
INDUCTOR
CURRENT
50mA/DIV
3459 G11
V
IN
= 2V
V
OUT
= 10V
L = 22μH
1μs/DIV
Start-Up
V
OUT
VOLTAGE
50mA/DIV
INPUT
CURRENT
50mA/DIV
3459 G14
V
IN
= 3.6V
250μs/DIV
V
OUT
= 0V TO 8V
L = 22μH
C
IN
= 2.2μF
3459 G12
3459 G15
Load Steps
V
OUT
AC RIPPLE
50mV/DIV
WITH 50kΩ
(TRACE 2
GROUNDED)
TO 500Ω
(TRACE 2 = 5V)
V
IN
= 3.6V
V
OUT
= 8V
L = 22μH
C
OUT
= 4.7μF
C
FF
= 47pF
100μs/DIV
3459 G16
Load Steps
V
OUT
AC RIPPLE
50mV/DIV
WITH 5kΩ
(TRACE 2
GROUNDED)
TO 500Ω
(TRACE 2 = 5V)
V
IN
= 3.6V
V
OUT
= 8V
L = 22μH
C
OUT
= 4.7μF
C
FF
= 47pF
100μs/DIV
3459 G17
3459fc
5
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