GE Industrial Solutions 2 × 12A Digital Dual Output MicroDLynx - Manual (Page 31)

GE
Datasheet
2 × 12A Digital Dual MicroDlynx TM : Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12A Output Current
February 14, 2014 ©2014 General Electric Corporation. All rights reserved. Page 31
Example Application Circuit
Requirements:
Vin:
12V
Vout: 1.8V
Iout: 2 × 9A max., worst case load transient is from 6A to 9A
ΔVout: 1.5% of Vout (27mV) for worst case load transient
Vin, ripple 1.5% of Vin (180mV, p-p)
CI1 Decoupling cap - 4x0.1 μF/16V, 0402 size ceramic capacitor
CI2 4x22 μF/16V ceramic capacitor (e.g. Murata GRM32ER61C226KE20)
CI3 470 μF/16V bulk electrolytic
CO1 Decoupling cap - 2x0.1 μF/16V, 0402 size ceramic capacitor
CO2 3 x 47 μF/6.3V ceramic capacitor (e.g. Murata GRM31CR60J476ME19)
CO3 1 x 330 μF/6.3V Polymer (e.g. Sanyo Poscap)
CO4 Decoupling cap - 2x0.1 μF/16V, 0402 size ceramic capacitor
CO5 3 x 47 μF/6.3V ceramic capacitor (e.g. Murata GRM31CR60J476ME19)
CO6 1 x 330 μF/6.3V Polymer (e.g. Sanyo Poscap)
CTune1 1200pF ceramic capacitor (can be 1206, 0805 or 0603 size)
RTune1 300 ohms SMT resistor (can be 1206, 0805 or 0603 size)
RTrim1 10k Ω SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%)
CTune2 1200pF ceramic capacitor (can be 1206, 0805 or 0603 size)
RTune2 300 ohms SMT resistor (can be 1206, 0805 or 0603 size)
RTrim2 10k Ω 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.
RADDR1
RTUNE1
CO4
SIG_GND
ADDR1
CLK
CI2
DATA
VIN2
VS+1
VOUT1
GND
RTrim1
CO5
RADDR0
TRIM1
ADDR0
RTrim2
CTUNE2
CI3
PGND
Vin+
CO2
VIN1
CI1
Vout+
ON/OFF2
CO1
ON/OFF1
PGND
VOUT2
CTUNE2
SYNC
PGOOD1
PGOOD2
TRIM2
MODULE
RTUNE2
SMBALRT#
VS+2
CO3
CO6