Datasheet

VoltagePositioningPFMMode
PWMMode
0.001 0.01 0.1 1 10
I -LoadCurrent- A
L
L =1 H,
C =10 F,
V =1.8V,
Mode: AutoPFM/PWM
m
m
OUT
OUT
V =4.2V
IN
V =5V
IN
V =3.6V
IN
V =3.3V
IN
1.710
1.728
1.746
1.764
1.782
1.800
1.818
1.836
1.854
1.872
1.890
V -OutputVoltageDC-V
O
1.710
1.728
1.746
1.764
1.782
1.800
1.818
1.836
1.854
1.872
1.890
V -OutputVoltageDC-V
O
0.001 0.01 0.1 1 10
I -LoadCurrent- A
L
L =1 H,
C =10 F,
V =1.8V,
Mode:ForcedPWM
m
m
OUT
OUT
V =4.2V
IN
V =5V
IN
V =3.6V
IN
V =3.3V
IN
0
10
20
30
40
50
60
70
80
90
100
Efficiency-%
0.001 0.01 0.1 1 10
I -LoadCurrent- A
L
L =1.2 H(NRG4026T1R2),
C =10 F(0603size),
V =1.8V
m
m
OUT
OUT
V =3.3V
IN
V =3.6V
V =4.2V
V =5V
IN
IN
IN
AutoPFM/PWMMode
V =3.3V
IN
V =3.6V
V =4.2V
V =5V
IN
IN
IN
ForcedPWMMode
50
55
60
65
70
75
80
85
90
95
100
Efficiency-%
0 0.25 0.5 0.75 1 1.25 1.5 1.75 2
I -LoadCurrent- A
L
V =4.2V
IN
V =5V
IN
V =3.7V
IN
L =1.2 H(NRG4026T1R2),
C =22 F(0603size),
V =3.3V,
Mode: AutoPFM/PWM
m
m
OUT
OUT
TPS62065, TPS62067
www.ti.com SLVS833B –MARCH 2010–REVISED NOVEMBER 2013
EFFICIENCY EFFICIENCY
vs vs
LOAD CURRENT LOAD CURRENT
Figure 3. V
OUT
= 3.3V, Auto PFM/PWM Mode, Figure 4. Auto PFM/PWM Mode vs. Forced PWM Mode,
Linear Scale Logarithmic Scale
OUTPUT VOLTAGE ACCURACY OUTPUT VOLTAGE ACCURACY
vs vs
LOAD CURRENT LOAD CURRENT
Figure 5. Auto PFM/PWM Mode Figure 6. Forced PWM Mode
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