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EV1320QI Datasheet, PDF (10/20 Pages) Enpirion, Inc. – The EV1320QI is a DC to DC converter specifically designed for memory termination applications. | |||
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Typical Performance Characteristics (Continued)
EV1320QI
Startup with POK at 2A
Parallel Operation Startup at 4A
ENABLE
VDDQ
VTT
POK
CONDIT IONS
No Load
CSS = 15nF
AVIN = 3.3V, VDDQ = 1.2V, VTT = 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)
CONDIT 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)
ÎVTT is due to ÎVDDQ
LOAD
CONDIT 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
06831
October 11, 2013
www.altera.com/enpirion, Page 10
Rev B
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