SC604A
POWER MANAGEMENT
Evaluation Board Bill of Materials
Reference
Value
Comment
U1
SC604A
1.OµF
10µF
-
-
-
-
Component references in bold are the only essential design components.
Bucket, input and output capacitors. Ceramic, low ESR type, 6.3V rating or higher.
This extra capacitor supports usage of long power leads from benchtop supply.
Add LEDs to meet the requirements of the application.
Jumpers in series with each LED.
C1,C2,C3,C4
C6
D1,D2,D3,D4
J1, J2, J3, J4
JP1,JP2,JP3,JP4
JP5
Jumpers to bypass each 1Ω sense resistor and bypass J1, J2, J3 and J4.
Jumper for bypassing the R4 input resistor.
JP6
-
Enable jumper.
JP7
-
-
-
Connects RSET potentiometer. Remove this jumper when using a fixed value R1.
Jumpers provide High/Low settings for the control bits.
RSET resistor
CTRL0,CTRL1,CTRL2
RSET
3296W-105
0.22Ω
16.5kΩ
-
Evaluation board has 1MΩ potentiometer in place of R1.
Series input resistor for studying effects of input resistance.
Resistor for analog brightness control. Apply test signal of 0 to 1.2V at VADJ test point.
Banana jacks for power supply.
R4
RADJ
J5
Evaluation Board Gerber Plots
Bottom View
Top View
2005 Semtech Corp.
www.semtech.com
16
SEMTECH [ SEMTECH CORPORATION ]
