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PI3303-00-LGIZ Datasheet, PDF (28/42 Pages) Vicor Corporation – 8 V to 36 Vin Cool-Power ZVS Buck Regulator Family
PI33xx-x0
PI3305-x0-LGIZ (15.0 VOUT) Electrical Characteristics
Unless otherwise specified: -55°C < TJ < 125°C, VIN =24 V, L1 = 230 nH [1]
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Input Voltage
Input Current
Input Current At Output Short
(fault condition duty cycle)
Input Quiescent Current
Input Voltage Slew Rate
VIN_DC
IIN_DC
IIN_Short
IQ_VIN
VIN_SR
Input Specifications
[7]
VIN = 24 V, TC = 25°C, IOUT = 8 A
[2]
Disabled
Enabled (no load)
20.4
24
36
V
5.15
A
20
mA
2.0
mA
2.5
mA
1
V/μs
Output Specifications
Output Voltage Total Regulation VOUT_DC [2]
Output Voltage Trim Range
VOUT_DC
[3] [7]
Line Regulation
∆VOUT (∆VIN) @25°C, 8 V <VIN <36 V
Load Regulation
Output Voltage Ripple
Continuous Output
Current Range
∆VOUT (∆IOUT) @25°C, 0.5 A <IOUT <8 A
VOUT_AC IOUT = 4 A, COUT = 4 x 22 μF, 20 MHz BW [4]
IOUT_DC
[5] [7]
Current Limit
IOUT_CL
14.78 15.0 15.23
V
10.0
15
16
V
0.1
%
0.1
%
60
mVp-p
8
A
9
A
Protection
VIN UVLO Start Threshold
VIN UVLO Stop Threshold
VIN UVLO Hysteresis
VIN OVLO Start Threshold
VIN OVLO Stop Threshold
VIN OVLO Hysteresis
VIN UVLO/OVLO Fault Delay Time
VIN UVLO/OVLO Response Time
Output Overvoltage Protection
Overtemperature
Fault Threshold
Overtemperature
Restart Hysteresis
VUVLO_START
VUVLO_STOP
VUVLO_HYS
VOVLO_START
VOVLO_STOP
VOVLO_HYS
tf_DLY
tf
VOVP
TOTP
TOTP_HYS
Number of the switching freq cycles
Above VOUT
18.4 19.4 20.4
V
17.4 18.4 19.4
V
0.90
V
37.0 38.4
V
36.1
V
0.77
V
128
Cycles
500
ns
20
%
130
135
140
°C
30
°C
[1] All parameters reflect regulator and inductor system performance. Measurements were made using a standard PI33xx-x0 evaluation board with 3x4”
dimensions and 4 layer, 2 oz 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 electrical characteristics when switching frequency or VOUT 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 1mA required.
Cool-Power®
Page 28 of 42
Rev 2.0
02/2016
vicorpower.com
800 927.9474