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| TLF50211EL_15 Datasheet, PDF (22/27 Pages) Marl International Limited – 2.2 MHz Step-Down Regulator 500 mA, 5 V, low quiescent current | |||
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TLF50211EL
Application Information
8
Application Information
Note: The following information is given as a hint for the implementation of the device only and shall not be
regarded as a description or warranty of a certain functionality, condition or quality of the device.
DIN
LIN
VS
CIN1
CIN2
CIN3
VS
TLF50211EL
Over
Temperature
Shutdown
EN
Enable
LIN, CIN1 and CIN3 recommended for
suppression of EME,
DIN depending on application
FREQ
SYNC
R5
N.C.
N.C.
Buck
Converter
Oscillator
Bandgap
Reference
Soft Start
Ramp
Generator
INT.
SUPPLY
SWO
DCATCH
FB
N.C.
N.C.
LOUT
VCC
COUT
N.C.
GND GND N.C.
Figure 8 Application Diagram
Note: This is a very simplified example of an application circuit. The function must be verified in the real application
Part-No.
CIN2
CIN3
COUT
DCATCH
LOUT
-
Value
Type
47µF/50V electrolytic
100nF/50V ceramic
10µF/25V ceramic
1A/100V 10BQ100 Schottky
10µH
MSS1278 T
-
-
Manufacturer
AVX
AVX
AVX
International Rectifier
Coilcraft
-
-
-
-
-
-
-
-
-
-
-
-
R5
43 kâ¦
0.25 W
-
Panasonic
Figure 9 Bill of Material for Application Diagram
Remark
For improving EME
1 A current capability
4.7 µH also possible
fOSC set to 2.2 MHz
Data Sheet
22
Rev. 1.0, 2013-06-19
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