PRODUCT SPECIFICATION
RC5041
Table 2. Bill of Materials for a 4-Bit Non-Synchronous DC-DC Converter
Item
C4
C12
C8
C
EXT
C6
C11
C7
C
IN
C
OUT
DS1
DS2
L1
L2
R
SENSE
R1
R2
R3
R4
R6
M1
U1
Description
Ceramic Capacitor, 0.1
µ
F, X7R, SMT0805
Ceramic Capacitor, 1
µ
F, X7R, SMT0805
Ceramic Capacitor, 0.1
µ
F, X7R, SMT0805
Ceramic Capacitor, 100pF, X7R, SMT0805
Ceramic Capacitor, 1
µ
F, X7R, SMT0805
Ceramic Capacitor, 0.1µF, X7R, SMT0805
Capacitor, 0.1µF, X7R, SMT0805
Capacitor, Al-Elect, 1200µF, 10v, 10 x 20 radial
Capacitor, Al-Elect, 1500µF, 6.3v, 10 x 20 radial
Schottky Diode, MBR2535CT
Schottky Diode, 1N5817
Output Inductor, 1.0µH, Toroid, 6 turns 17AWG
Input Inductor, 2.5µH, Toroid, 10 turns 17AWG
Sense Resistor, CuNi Allow Wire, 1W, 6mΩ, 10%
10Ω Resistor, 1/8W, 5%, SMT0805
10Ω Resistor, 1/8W, 5%, SMT0805
10Ω Resistor, 1/8W, 5%, SMT0805
10Ω Resistor, 1/8W, 5%, SMT0805
10Ω Resistor, 1/8W, 5%, SMT0805
N-ch Power FET
PWM Controller, Raytheon RC5041M
See Table 2
See Note 1
See Table 3
See Table 3
Comments
Preliminary Information
Note:
1. The inductor L2 is recommended to isolate the 5V ipower supply from current surges caused by the MOSFET switching. This
inductor is not required for the proper operation of the DC-DC converter and can be substituted with a ferrite beads inductor
or omitter completely.
Table 3. Part Selection Table
Raytheon
DC-DC Converter
CIN
Sanyo
10MV1200GX
1x
1x
RC5041
2x
3x
1x
COUT
Sanyo
6MV1500GX
2x
2x
4x
6x
2x
K6 CPU
166 MHz
200 MHz
233 MHz
266 MHz
300 MHz+
Output Voltage
2.9V
2.9V
3.2V
3.2V
2.1V
I
MAX
6.25A
7.5A
9.5A
13.0A
5.6A
MOSFET
IRL3103
IRL3103
IRL3103
IRL2203
IRL3103
5
RAYTHEON [ RAYTHEON COMPANY ]
