Datasheet

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© May 2016
Würth Elektronik eiSos GmbH & Co. KG - Data Sheet - REV 1.0
39/46
WPMDU1251501 / 171021501
MagI³C Power Module
VDRM - Variable Step Down Regulator Module
EVALUATION BOARD SCHEMATIC
C
IN1
EN/UVLO
VIN
RT/CLK
PGND SS/TRK
FB
VOUT
Module
R
SET
C
SS
C
OUT1
AGND
26
27
31
28
36
V
IN
V
OUT
SSCHO
29
PG
35
R
RT
C
IN2
C
OUT3
C
IN3
C
OUT2
IC1
C
f
L
f
R
1
R
2
LED1
C
OUT4
R
UVLO1
R
UVLO2
R
SYNC
C
SYNC
EXT.
CLOCK
Optional input
filter
Bill of Material
Designator
Description
Quantity
Order Code
Manufacturer
IC1
MagI
3
C Power Module
1
171021501
Würth Elektronik
C
IN1
Aluminium Electrolythic capacitor 27µF/100V
1
860040874001
Würth Elektronik
C
IN2
,C
IN3
Ceramic chip capacitor 4,7µF/100V X5R
2
C
OUT1
Ceramic chip capacitor 100nF/100V X7R 0805
1
C
OUT2
,C
OUT3
Ceramic chip capacitor 22µF/25V X7R
2
885012109014
Würth Elektronik
C
OUT4
Aluminium Polymer Electrolythic capacitor 33µF/25V
1
875105545004
Würth Elektronik
C
SS,
C
SYNC
Not mounted
C
f
(1)
Filter ceramic chip capacitor 2.2µF/100V
1
L
f
(2)
Filter inductor 22µH, PD2
1
744774122
Würth Elektronik
R
UVLO1
,R
UVLO2
,
R
SYNC
Not mounted
R
1
12.4kΩ
1
R
2
12.4kΩ
1
LED1
LED red
1
150080SS75000
Würth Elektronik
R
RT
Set
by
jumper
Open for f
sw
= 400kHz
1.1MΩ for f
sw
= 500kHz
1
549kΩ for f
sw
= 600kHz
1
365kΩ for f
sw
= 700kHz
1
267kΩ for f
sw
= 800kHz
1
215kΩ for f
sw
= 900kHz
1
178kΩ for f
sw
= 1MHz
1
R
SET
Set
by
jumper
21.5kΩ for V
OUT
= 2.5V
1
31.6kΩ for V
OUT
= 3.3V
1
52.3kΩ for V
OUT
= 5V
1
102kΩ for V
OUT
= 9V
1
140kΩ for V
OUT
= 12V
1
178kΩ for V
OUT
= 15V
1
(1) not mounted on the Evaluation Board
(2) not mounted on the Evaluation Board. A shorting wire or 0R resistor is put in its place