EV1320QI Datasheet, PDF (10/20 Pages) Enpirion, Inc. – The EV1320QI is a DC to DC converter specifically designed for memory termination applications.

Typical Performance Characteristics (Continued)
EV1320QI
Startup with POK at 2A
Parallel Operation Startup at 4A
ENABLE
VDDQ
VTT
POK
COND IT IONS
No Load
CSS = 15nF
AVIN = 3.3V, VDDQ = 1.2V, VT T = 0.6V
CIN=22µF, COUT=22µF
C1P = 22µF+1x10µF
ENABLE
VDDQ (VDDQ#1 tied to VDDQ#2)
VTT (VTT#1 tied to VTT#2)
Total Load = 4A (2A + 2A)
C ON DIT IONS
LOAD = 4A
CSS = 15nF
AVIN = 3.3V, VDDQ = 1.8V, VTT = 0.9V,
CIN=22µF, COUT=22µF
C1P = 22µF+1x10µF
Parallel VDDQ Startup with POK
VDDQ (VDDQ#1 tied to VDDQ#2)
VTT (VTT#1 tied to VTT#2)
POK #1
POK #2
CONDIT IONS
LOAD = 4A, CSS = 15nF
AVIN = 3.3V, VDDQ = 1.8V, VTT = 0.9V,
CIN=22µF, COUT=22µF
C1P = 22µF+1x10µF
Parallel Operation at 4A
CH1: VDDQ (VDDQ#1 tied to VDDQ#2)
CH2:VTT (VTT#1 tied to VTT#2)
Total Load = 4A (2A + 2A)
Load #2: 2A
Load #1: 2A
Parallel Operation Load Transient
CH1: VDDQ (VDDQ#1 tied to VDDQ#2)
CH2: VTT (VTT#1 tied to VTT#2)
∆VTT is due to ∆VDDQ
LOAD
COND IT IONS
LOAD = 4A
AVIN = 3.3V, VDDQ = 1.5V, VTT = 0.75V,
CIN=22µF, COUT=22µF
C1P = 22µF+1x10µF
Note: Output deviation is measured at bulk capacitors on
evaluation board edge
©Enpirion 2012 all rights reserved, E&OE
06831
Enpirion Confidential
April 9, 2012
www.enpirion.com, Page 10
Rev: C