Datasheet

0
500
1000
1500
2000
2500
3000
3500
0 10 20 30 40 50
f - Frequency - kHz
I - Output Current - mA
OUT
L = 2.2 H Murata LQM21PN2R2,
C = 2.2 F,
ON/BYP = V
m
m
OUT
IN
V = 2.3 V
IN
V = 2.5 V
IN
V = 2.7 V
IN
V = 3 V
IN
V = 3.3 V
IN
V = 3.6 V
IN
DC/DC mode
bypass mode
2
2.05
2.1
2.15
2.2
2.25
2.3
V - Output Voltage - V
OUT
1.9 2 2.1 2.2 2.3 2.4 2.5
V - Input Voltage - V
IN
I = 1 mA -40ºC
OUT
I = 1 mA 25ºC
OUT
I = 1 mA 85ºC
OUT
I = 20 mA -40ºC
OUT
I = 20 mA
OUT
I = 20 mA 85ºC
OUT
ON/BYP = high
automatic transition
into bypass mode
rising V
IN
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
1.9 2.3 2.9 3.5 3.9
V - Input Voltage - V
IN
r - Drain-Source On-State Resistance -
DS(ON)
W
2.1 2.72.5 3.1 3.3 3.7
T = -40°C
A
T = 25°C
A
T = 50°C
A
T = 60°C
A
T = 70°C
A
T = 85°C
A
T = -20°C
A
T = 0°C
A
I = 1 mA 25ºC
OUT
DC/DC
mode
bypass
mode
2
2.05
2.1
2.15
2.2
2.25
2.3
V - Output Voltage - V
OUT
1.9 2 2.1 2.2 2.3 2.4 2.5
V - Input Voltage - V
IN
I = 20 mA -40ºC
OUT
I = 1 mA 85ºC
OUT
I = 20 mA 25ºC
OUT
I = 1 mA -40ºC
OUT
I = 20 mA 85ºC
OUT
ON/BYP = high
automatic transition
into bypass mode
falling VIN
TPS62732, TPS62733
TPS62730
www.ti.com SLVSAC3C –MAY 2011–REVISED DECEMBER 2012
TYPICAL CHARACTERISTICS (continued)
Figure 9. r
DS(ON)
NMOS vs Input Voltage Figure 10. Automatic Transition into Bypass Mode - Falling
V
IN
Figure 11. Automatic Transition into Bypass Mode - Rising Figure 12. Switching Frequency vs I
OUT
vs V
IN
V
IN
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