User Manual

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 10μF/16V ceramic capacitor (e.g. Murata GRM Series)
CI2 47μF/16V bulk electrolytic
CO1 2 x 47μF/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 4.87kΩ SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%)