PI33XX-X0 Datasheet, PDF (25/42 Pages) List of Unclassifed Manufacturers – 8V to 36Vin Cool-Power ZVS B uck Regulator Family

PI33XX-X0
PI3303-X0 (12.0 Vout) Electrical Characteristics
Specifications apply for -40C < T_J < 125C, Vin =24V, L1=230nH (Note 1) unless other conditions are noted.
Parameter
Symbol
Min Typ Max Units Conditions
Timing
Switching Frequency
Fault Restart Delay
Sync In (SYNCI)
f_S
t_{FR_DLY}
1.4
MHz Note 6.
30
ms
Synchronization Frequency Range
SYNCI Threshold
Sync Out (SYNCO)
∆f_SYNCI
V_SYNCI
50
110
%
Relative to set switching
frequency. Note 3.
2.5
V
SYNCO High
SYNCO Low
SYNCO Rise Time
V_{SYNCO_HI}
4.5
V Source 1mA
V_{SYNCO_LO}
0.5
V Sink 1mA
t_{SYNCO_RT}
10
20
ns 20pF load
SYNCO Fall Time
t_{SYNCO_FT}
10
20
ns 20pF load
Soft Start And Tracking
TRK Active Range (Nominal)
TRK Enable Threshold
Charge Current (Soft – Start)
Discharge Current (Fault)
Soft-Start Time
Enable
V_TRK
V_{TRK_OV}
I_TRK
I_{TRK_DIS}
t_SS
0
1
V
20
40
60
mV
-70
-50
-30
µA
6.8
mA
2.2
2.6
ms C_TRK = 0
High Threshold
V_{EN_HI}
Low Threshold
V_{EN_LO}
Threshold Hysteresis
V_{EN_HYS}
Enable Pull-Up Voltage (floating,
unfaulted)
V_{EN_PU}
Enable Pull-Down Voltage (floating,
faulted)
V_{EN_PD}
Source Current
I_{EN_SO}
Sink Current
I_{EN_SK}
Note 1: All parameters reflect regulator and inductor system
performance. Measurements were made using a standard PI33XX
evaluation board with 3x4” dimensions and 4 layer, 2oz copper.
Refer to inductor pairing table within Application Description
section for specific inductor manufacturer and value.
Note 2: Regulator is assured to meet performance specifications
by design, test correlation, characterization, and/or statistical
process control.
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
Note 3: Output current capability may be limited and other
performance may vary from noted electrical characteristics when
switching frequency or Vout is modified.
Note 4: Refer to Output Ripple plots.
Note 5: Refer to Load Current vs. Ambient Temperature curves.
Note 6: Refer to Switching Frequency vs. Load current curves.
Note 7: Minimum 5V between Vin-Vout must be maintained or a
minimum load of 1mA required.
vicorpower.com
800 735.6200
Rev 1.4
11/2012
Cool-Power^®
Page 25 of 42