Datasheet

0.00001 0.0001 0.001 0.01 0.1 1
I
O
-OutputCurrent- A
0
50
90
100
Efficiency-%
70
40
20
10
V
OUT
A
=1.2V
T =25 C
o
80
60
30
2.3V
2.8V
3.3V
3.6V
4.2V
4.5V
5.5V
5V
6V
t- Time-100 s/divm
Ch1:VDCDC
50mV/div
Ch2:DCDCLoadCurrent
200mA/div
DCDC LoadCurrent=60mA to540mA
Mode=GND
VINDCDC=3.6V
T =25 C
A
o
VDCDC=1.8V
www.ti.com TPS650061 Typical Performance Data and Characteristic Curves
5.1 Efficiency
Figure 2. TPS650061 Efficiency vs Load Current
5.2 Line and Load Regulation
Figure 3 and Figure 4 show the load transient response of the DCDC converter and LDO, while Figure 5
and Figure 6 show the line transient response.
Figure 3. TPS650061 DCDC Converter Load Transient Response
7
SLVU354–March 2010 Using the TPS650061EVM 2.25 MHz Step-Down Converter with Dual LDO
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