Datasheet

TimeBase-10 s/Divm
V 3.6V,
V 1.8V,I 150mA,
L 2.2 H,C 10 F0603
IN
OUT OUT
OUT
m m
V 10mV/Div
OUT
SW2V/Div
I 200mA/Div
coil
TimeBase-10 s/Divm
V 20mV/Div
OUT
V 3.6V,
V 1.8V,I 10mA,
L 2.2 H,C 10 F0603
IN
OUT OUT
OUT
m m
SW2V/Div
I 200mA/Div
coil
V − InputVoltage − V
IN
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
2.5 3 3.5 4 4.5 5 5.5
I
-ShutdownCurrentIntoVIN
−
A
SD
m
T =85 C
A
o
T =-40 C
A
o
EN=GND
T =25 C
A
o
V − InputVoltage − V
IN
10
12
14
16
18
20
2.5 3 3.5
4
4.5
5 5.5
8
I – QuiescentCurrent – A
Q
m
T =-40 C
A
o
T =25 C
A
o
T =85 C
A
o
MODE=GND,
EN=VIN,
DeviceNotSwitching
TPS62590
www.ti.com SLVS897B –JANUARY 2009– REVISED APRIL 2011
TYPICAL OPERATION – PFM MODE TYPICAL OPERATION – PWM MODE
Figure 13. Figure 14.
SHUTDOWN CURRENT INTO VIN QUIESCENT CURRENT
vs vs
INPUT VOLTAGE INPUT VOLTAGE
Figure 15. Figure 16.
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