Datasheet

I -OutputCurrent-A
O
0
10
20
30
40
50
60
70
80
90
100
Efficiency-%
0.0001 0.001 0.01 0.1 1
V =3.6V
I
V =4.2V
I
V =3.3V
I
V =2.7V
I
V =2.3V
I
V =5V,
I =max
O
lim
V =5.5V
I
V =6V
I
V =5V,
I =max
O
lim
0
10
20
30
40
50
60
70
80
90
100
Efficiency-%
0.001 0.01 0.1 1
I -OutputCurrent-A
O
TPS61252
www.ti.com SLVSAG3 –SEPTEMBER 2010
TYPICAL CHARACTERISTICS
TABLE OF GRAPHS
DESCRIPTION FIGURE
Efficiency vs Output current (V
OUT
= 5.0 V, I
LIM
= 1.5 A) Figure 1
vs Output current in 100% Duty-Cycle Mode (V
OUT
= 5.0 V, I
LIM
= 1.5 A) Figure 2
vs Input voltage (V
OUT
= 5.0 V, I
Load
= {10; 100; 1000 mA}) , I
LIM
= 1.5 A Figure 3
Maximum output current vs Input voltage (TPS61252, V
OUT
= 5.0 V) Figure 4
Output voltage vs Output current (V
OUT
= 5.0 V, I
LIM
= 1.5 A) Figure 5
Load transient response (V
IN
< V
OUT
, I
LIM
= 500mA, Load change from 20 mA to 300
Waveforms Figure 6
mA)
Load transient response (V
IN
> V
OUT
, I
LIM
= 1000mA, Load change from 50 mA to 550
Figure 7
mA)
Startup after enable (V
OUT
= 5.0 V, V
IN
= 3.6 V, I
LIM
= 500mA) Figure 8
Startup after enable (V
OUT
= 5.0 V, V
IN
= 3.6 V, I
LIM
= 1000mA) Figure 9
Startup after enable in 500 mA load (V
OUT
= 5.0 V, V
IN
= 3.6 V, I
LIM
= 1000mA) Figure 10
EFFICIENCY EFFICIENCY
vs vs
OUTPUT CURRENT OUTPUT CURRENT – IN 100% DUTY CYCLE MODE
Figure 1. Figure 2.
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