Datasheet

V =2.5V
20mV/div
OUT
SW
2V/div
I
200mA/div
L
V =3.6V
C =4.7 F
L =2.2 H
IN
OUT
m
m
t-Time-1 ms/div
MODE=GND
I =10mA
OUT
V =2.5V
20mV/Div
OUT
SW
2V/div
I
200mA/Div
L
V =3.6V
IN
C =4.7 F
OUT
m
L =1 Hm
t-Time-1 ms/div
MODE=GND
I =10mA
OUT
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
2 2.5 3 3.5 4 4.5 5 5.5 6
V -InputVoltage-V
IN
r -StaticDrain-SourceOn-StateResistance-
DS(ON)
W
T =85°C
A
T =60°C
A
T =25°C
A
T =-40°C
A
NMOS
0
10
20
30
40
50
60
70
80
90
100
10 100 1k 10k 100k 1M
PSRR-PowerSupplyRejectionRatio-dB
f-Frequency-kHz
I =50mA,
MODE=0,
forcedPWM
OUT
I =50mA,
MODE=1,
PFM/PWM
OUT
I =150mA,
PWMMode
OUT
V =3.6V,
V =1.8V,
C =2.2 F,
C =4.7 F,
IN
OUT
IN
OUT
m
m
L =2.2 Hm
TPS62230, TPS62231, TPS62232, TPS62233, TPS62234, TPS62235, TPS62236
TPS62237, TPS62238, TPS62239, TPS622310, TPS622311, TPS622312
TPS622313, TPS622314, TPS622315, TPS622316, TPS622317, TPS622318
www.ti.com SLVS941E –APRIL 2009–REVISED DECEMBER 2010
TYPICAL CHARACTERISTICS (continued)
Figure 33. NMOS R
DSON
vs Supply Voltage V
IN
and Ambient Figure 34. TPS62231 1.8V PSRR
Temperature T
A
Figure 35. PFM Mode Operation I
OUT
= 10mA Figure 36. PFM Mode Operation I
OUT
= 10mA
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