Datasheet

V
5 V/div
SW
V
50 mV/div
S_AC
I
1 A/div
L
200 ns/div
V = 3.3 V
V = 12 V/300 mA
f = 1.2 MHz
IN
S
S
V
5 V/div
SW
V
50 mV/div
S_AC
I
200 mA/div
L
200 ns/div
V = 3.3 V
V = 12 V/1 mA
f = 1.2 MHz
IN
S
S
V _AC
200 mV/div
S
I
100 mA/div
OUT
200 s/divµ
I = 50 mA - 200 mA
OUT
V = 3.3 V
V = 12 V
IN
S
C = 20 µF
L = 3.3 H
R = 51 k
C = 1.6 nF
OUT
COMP
COMP
µ
Ω
200µs/div
V _AC
200 mV/div
S
I
100 mA/div
OUT
V = 3.3 V
V = 12 V
IN
S
I = 50 mA - 200 mA
OUT
C = 20 µF
L = 6.8 H
R = 24 k
C = 3.3 nF
OUT
COMP
COMP
µ
Ω
200 s/divµ
TPS61085
SLVS859A –JUNE 2008–REVISED APRIL 2012 www.ti.com
PWM SWITCHING PWM SWITCHING
DISCONTINUOUS CONDUCTION MODE CONTINUOUS CONDUCTION MODE
Figure 5. Figure 6.
LOAD TRANSIENT RESPONSE LOAD TRANSIENT RESPONSE
HIGH FREQUENCY (1.2 MHz) LOW FREQUENCY (650 kHz)
Figure 7. Figure 8.
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