Datasheet

EN
5V/div
V
5V/div
S
I
1 A/div
L
V =3.3V
V =12V/300mA
IN
S
C =100nF
SS
2ms/div
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
2 2.5 3 3.5 4 4.5 5 5.5 6
V - Supply Current - V
CC
I - Supply Current - mA
CC
Switching
f = 1.2 MHz
L = 3.3 H
S
µ
Switching
f = 650 kHz
L = 6.8 H
S
µ
Not Switching
0
200
400
600
800
1000
1200
1400
1600
0.0 0.1 0.2 0.3 0.4 0.5 0.6
I - Load current - mA
OUT
f - Frequency - kHz
S
FREQ = V
L = 3.3 H
IN
µ
FREQ = GND
L = 6.8 Hµ
V = 3.3 V
V = 12 V
IN
S
0
200
400
600
800
1000
1200
1400
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
V - Supply Voltage - V
CC
f - Frequency - kHz
S
FREQ = V
L = 3.3 H
IN
µ
FREQ = GND
L = 6.8 Hµ
V = 12 V / 200 mA
S
TPS61085
www.ti.com SLVS859A –JUNE 2008–REVISED APRIL 2012
SUPPLY CURRENT
vs
SOFT-START SUPPLY VOLTAGE
Figure 9. Figure 10.
FREQUENCY FREQUENCY
vs vs
LOAD CURRENT SUPPLY VOLTAGE
Figure 11. Figure 12.
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