GE Industrial Solutions 12V PicoTLynx 3A - Manual (Page 20)

GE
Data Sheet
12V PicoTLynx TM 3A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current
May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 20
Example Application Circuit
Requirements:
Vin:
12V
Vout: 1.8V
Iout: 2.25A max., worst case load transient is from 1.5A to 2.25A
ΔVout: 1.5% of Vout (27mV) for worst case load transient
Vin, ripple 1.5% of Vin (180mV, p-p)
MODULE
VOUT
SENSE
GND
TRIM
RTUNE
CTUNE
RTrim
VIN
CO1
+
CI2 CI1
Vin+ Vout+
ON/OFF
Q3
CI1 10 μF/16V ceramic capacitor (e.g. Murata GRM Series)
CI2 47 μF/16V bulk electrolytic
CO1 2 x 47 μF/6.3V ceramic capacitor (e.g. TDK C Series)
CTune 4.7nF ceramic capacitor (can be 1206, 0805 or 0603 size)
RTune 180 ohms SMT resistor (can be 1206, 0805 or 0603 size)
RTrim 4.87k Ω SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%)