Semtech SC120 User Manual page 4

Standard Bill of Materials
Reference
R1
R2
R3
R4
R5
R6
SW1
TP1
TP3
TP4
TP5
TP6
TP2, TP7, TP8, TP9
L1
U1
C1, C2
C3, C4
C5
JP1
JP2
PTP2
J1
J2
Note:
Component values on the EVB may vary per specifi c customer requirements.
Value Footprint
499kΩ 0603
1MΩ 0603
100kΩ 0603
0 0603
No Pop 2512
0 0603
DPDT
Test point 0.040
Test point 0.040
Test point 0.040
Test point 0.040
Test point 0.040
Test point 0.040
4.7μH 7 x 4 (mm)
SC120UL or
1.5 x 2 (mm)
SC121UL
SC120SK 2.8 x 2.9 (mm)
22μF 0805
No Pop 1206
No Pop 0603
Berg-2pin 2-100
Berg-2pin 2-100
SLX
Banana Jack
Banana Jack
SC120/SC121 EVB
Hardware Notes
Valid for 1.8V output.
Pull-up resistor from EN to VIN
Shorting bar is provided off set, with only one terminal connect-
ed. Install shorting bar to bypass inductor current sense loop.
Not populated, optional load resistor
R6 is connected in series with R1. R6 permits using two resistors
in series for a large (effective) value of R
Push-button switch, down position enables output.
LX pin voltage sense
IN pin voltage sense
EN pin voltage sense
FB pin voltage sense
OUT pin voltage sense
Ground
Inductor, Murata LQH43MN4R7K03
Semtech integrated circuit — MLPD-UT-6 package
Semtech integrated circuit — SOT23-6 package
Capacitor, X5R dielectric, 6.3V rating, Murata GRM21BR60J226M
Not populated
Feedback capacitor — optional
Inductor current sense loop connections — external loop con-
nector provided
Short = 3.3V, open = resistor programmed
PRB-TP-5031
Input
Output
(see datasheet).
1
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