TPS64200 Datasheet, PDF (5/24 Pages) Texas Instruments – SOT23 STEP DOWN CONTROLLER

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TYPICAL CHARACTERISTICS
TPS64200, TPS64201
TPS64202, TPS64203
SLVS485 − AUGUST 2003
All graphs were generated using the circuit as shown unless otherwise noted. For output voltages other than
3.3 V, the output voltage divider was changed accordingly. Graphs for the TPS64203 were taken using the
application circuit shown in Figure 25.
VI
CI
10 µF
X7R
TPS6420x
1 _{EN SW} 6
2 _{GND VIN} 5
3 _{FB ISENSE} 4
MBRM120LT3
R(ISENSE) = 33 mΩ
Si5447DC
CDRH 103R−100
10 µH
R1
620 kΩ
Cff
4.7 pF
VO
Co
47 µF PosCap
6TPA47M
R2
360 kΩ
Figure 1. Basic Application Circuit For a 2-A Step-Down Converter
TABLE OF GRAPHS
η Efficiency
Output voltage
Switching frequency
Operating quiescent current
Output voltage ripple
Line transient response
Load transient response
Start-up timing
vs Load current
vs Output current
vs Output current
vs Input voltage
Using circuit according to Figure 1
Using circuit according to Figure 1
Using circuit according to Figure 1
FIGURE
2−5
6−9
10 − 13
14
15
16
17
18
5