20a digital microdlynx, Non-isolated dc-dc power modules, Module – GE Industrial Solutions 20A Digital MicroDLynx User Manual
Page 35: Data sheet, Example application circuit

GE
Data Sheet
20A Digital MicroDLynx
TM
: Non-Isolated DC-DC Power Modules
3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current
April 24, 2013
©2012 General Electric Company. All rights reserved.
Page 35
Example Application Circuit
Requirements:
Vin:
12V
Vout:
1.8V
Iout:
15A max., worst case load transient is from 10A to 15A
Vout:
1.5% of Vout (27mV) for worst case load transient
Vin, ripple
1.5% of Vin (180mV, p-p)
CI1
Decoupling cap - 1x0.047
F/16V ceramic capacitor (e.g. Murata LLL185R71C473MA01)
CI2
3x22
F/16V ceramic capacitor (e.g. Murata GRM32ER61C226KE20)
CI3
47
F/16V bulk electrolytic
CO1
Decoupling cap - 1x0.047
F/16V ceramic capacitor (e.g. Murata LLL185R71C473MA01)
CO2 N.A.
CO3
3 x 330
F/6.3V Polymer (e.g. Sanyo Poscap)
CTune
4700pF ceramic capacitor (can be 1206, 0805 or 0603 size)
RTune
330 ohms SMT resistor (can be 1206, 0805 or 0603 size)
RTrim
10k
SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%)
Note: The DATA, CLK and SMBALRT pins do not have any pull-up resistors inside the module. Typically, the SMBus master
controller will have the pull-up resistors as well as provide the driving source for these signals.
RADDR0
DATA
SEQ
VS-
RADDR1
GND
Vin+
CI3
CO3
ADDR0
VOUT
VS+
GND
TRIM
CTUNE
RTUNE
RTrim
VIN
CO1
CI1
Vout+
ON/OFF
SEQ
SMBALRT#
MODULE
PGOOD
ADDR1
SIG_GND
SYNC
CI2
CO2