Datasheet

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