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| LTC3459_07 Datasheet, PDF (5/12 Pages) Linear Technology – 10V Micropower Synchronous Boost Converter | |||
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LTC3459
TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C, unless otherwise noted).
VOUT AC Ripple
VOUT
50mV/DIV
INDUCTOR
CURRENT
50mA/DIV
VIN = 3.3V
VOUT = 5V
L = 22μH
COUT = 4.7μF
CFF = 47pF
5μs/DIV
Burst Cycle
SW
CURRENT
50mA/DIV
INDUCTOR
CURRENT
50mA/DIV
3459 G10
VIN = 5V
VOUT = 10V
L = 22μH
1μs/DIV
VOUT Regulated Below
VIN Burst Cycle
Shorted Output
SW
CURRENT
50mA/DIV
INDUCTOR
CURRENT
50mA/DIV
VIN = 5V
VOUT = 3.5V
L = 22μH
1μs/DIV
SW
CURRENT
50mA/DIV
INDUCTOR
CURRENT
50mA/DIV
3459 G13
VIN = 5V
VOUT = 0V
L = 22μH
500ns/DIV
Burst Cycle
SW
CURRENT
50mA/DIV
INDUCTOR
CURRENT
50mA/DIV
3459 G11
VIN = 2V
VOUT = 10V
L = 22μH
1μs/DIV
Start-Up
VOUT
VOLTAGE
50mA/DIV
INPUT
CURRENT
50mA/DIV
3459 G14
VIN = 3.6V
250μs/DIV
VOUT = 0V TO 8V
L = 22μH
CIN = 2.2μF
3459 G12
3459 G15
Load Steps
VOUT
AC RIPPLE
50mV/DIV
WITH 50kΩ
(TRACE 2
GROUNDED)
TO 500Ω
(TRACE 2 = 5V)
VIN = 3.6V
VOUT = 8V
L = 22μH
COUT = 4.7μF
CFF = 47pF
100μs/DIV
3459 G16
Load Steps
VOUT
AC RIPPLE
50mV/DIV
WITH 5kΩ
(TRACE 2
GROUNDED)
TO 500Ω
(TRACE 2 = 5V)
VIN = 3.6V
VOUT = 8V
L = 22μH
COUT = 4.7μF
CFF = 47pF
100μs/DIV
3459 G17
3459fc
5
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