TPS51200
www.ti.com
SLUS812–FEBRUARY 2008
Design Example 6
This design example describes a 3.3-VIN, LDO Configuration.
R1
10 kW
TPS51200
REFIN
2.5 V
1
2
VIN 10
3.3 VIN
R2 C4
3.86 kW 1000 pF
R3
100 kW
C6
4.7 mF
VLDOIN PGOOD
9
PGOOD
V
= V
= 2.5 V
VLDOIN
VLDOREF
C7
10 mF
C8
10 mF
3
4
5
VO
GND
EN
8
7
6
V
= 1.8 V
VLDO
C1
C2
C3
10 mF 10 mF 10 mF
PGND
ENABLE
REFOUT
VOSNS REFOUT
C5
0.1 mF
UDG-08033
Figure 30. 3.3-VIN, LDO Configuration
Design Example 6 List of Materials
REFERENCE
DESIGNATOR
DESCRIPTION
SPECIFICATION
PART NUMBER
MANUFACTURER
R1
10 kΩ
R2
R3
Resistor
3.86 kΩ
100 kΩ
C1, C2, C3
C4
10 µF, 6.3 V
1000 pF
GRM21BR70J106KE76L
Murata
C5
Capacitor
0.1 µF
C6
4.7 µF, 6.3 V
10 µF, 6.3 V
GRM21BR60J475KA11L
GRM21BR70J106KE76L
Murata
Murata
C7, C8
Copyright © 2008, Texas Instruments Incorporated
27
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