GE Industrial Solutions PicoTLynx 3A - Manual (Page 19)

GE
Data Sheet
PicoTLynx TM 3A: Non-Isolated DC-DC Power Modules
2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A Output Current
September 11, 2013 ©2013 General Electric Company. All rights reserved. Page 19
Example Application Circuit
Requirements:
Vin:
3.3V
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 (50mV, p-p)
MODULE
VOUT
SENSE
GND
TRIM
RTUNE
CTUNE
RTrim
VIN
CO1
+
CI2 CI1
Vin+ Vout+
ON/OFF
Q3
CI1 22 μF/6.3V ceramic capacitor
CI2 47 μF/6.3V bulk electrolytic
CO1 2 x 47 μF/6.3V ceramic capacitor (e.g. Murata GRM31CR60J476ME19)
CTune 27nF ceramic capacitor (can be 1206, 0805 or 0603 size)
RTune 33 ohms SMT resistor (can be 1206, 0805 or 0603 size)
RTrim 1k Ω SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%)