PI3420-00-LGIZ Datasheet, PDF (13/30 Pages) Vicor Corporation – 8 V to 18 Vin, 15 A Cool-Power ZVS Buck Regulator

PI34xx-00
PI3422-00-LGIZ (2.5 V_OUT) Electrical Characteristics
Specifications apply for -40°C < T_J < 125°C, V_IN =12 V, L1 = 125 nH (Note 1) unless other conditions are noted.
Parameter
Symbol
Conditions
Min
Typ
Max Unit
Switching Frequency
Fault Restart Delay
f_S
t_{FR_DLY}
Note ^[6]
Timing
650
kHz
30
ms
Synchronization Frequency Range
SYNCI Threshold
∆f_SYNCI
V_SYNCI
Sync In (SYNCI)
Relative to set switching frequency. Note ^[3]
50
110
%
2.5
V
SYNCO High
SYNCO Low
SYNCO Rise Time
SYNCO Fall Time
V_{SYNCO_HI}
V_{SYNCO_LO}
t_{SYNCO_RT}
t_{SYNCO_FT}
Source 1mA
Sink 1mA
20pF load
20pF load
Sync Out (SYNCO)
4.5
V
0.5
V
10
ns
10
ns
TRK Active Input Range
TRK Max Output Voltage
TRK Disable Threshold
Charge Current (Soft–Start)
Discharge Current (Fault)
Soft-Start Time
V_TRK
V_{TRK_MAX}
V_{TRK_OV}
I_TRK
I_{TRK_DIS}
t_SS
Soft Start And Tracking
Internal reference tracking range.
C_TRK = 0uF
0
1.2
V
1.2
V
20
40
60
mV
-70
-50
-30
µA
6.8
mA
2.2
ms
High Threshold
Low Threshold
Threshold Hysteresis
Enable Pull-Up Voltage
(floating, unfaulted)
Enable Pull-Down Voltage
(floating, faulted)
Source Current
Sink Current
V_{EN_HI}
V_{EN_LO}
V_{EN_HYS}
V_{EN_PU}
Enable
With positive logic EN polarity
V_{EN_PD}
I_{EN_SO}
I_{EN_SK}
With negative logic EN polarity
With positive logic EN polarity
With negative logic EN polarity
0.9
1
1.1
V
0.7
0.8
0.9
V
100
200
300
mV
2
V
0
V
-50
uA
50
uA
[1] _{All parameters reflect regulator and inductor system performance. Measurements were made using a standard PI34xx-00 evaluation board with 3 x 4”}
dimensions and 4 layer, 2oz copper. Refer to inductor pairing table within Application Description section for specific inductor manufacturer and value.
[2] _{Regulator is assured to meet performance specifications by design, test correlation, characterization, and/or statistical process control.}
[3] _{Output current capability may be limited and other performance may vary from noted electrical characteristics when switching frequency or}
V_OUT is modified.
[4] _{Refer to Output Ripple plots.}
[5] _{Refer to Load Current vs. Ambient Temperature curves.}
[6] _{Refer to Switching Frequency vs. Load current curves.}
[7] _{Minimum 5 V between Vin-Vout must be maintained or a minimum load of 1 mA required.}
Cool-Power^®
Page 13 of 30
Rev 1.3
12/2015
vicorpower.com
800 927.9474