PI352X-00 Datasheet, PDF (8/34 Pages) Vicor Corporation – 30VIN to 60VIN Cool-Power ZVS Buck Regulator

PI3525-00 (5.0V_OUT) Electrical Characteristics
Specifications apply for -40°C < T_INT < 120°C, V_IN = 48V, EN = High, unless otherwise noted.
Parameter
Symbol
Conditions
PI352x-00
Min
Typ
Max
Unit
Input Voltage
Input Current
Input Current At Output Short
(fault condition duty cycle)
Input Quiescent Current
Input Quiescent Current
Input Voltage Slew Rate
Input capacitance, Internal
V_{IN_DC}
I_{IN_DC}
I_{IN_Short}
I_{Q_VIN}
I_{Q_VIN}
V_{IN_SR}
C_{IN_INT}
Input Specifications
V_IN = 48V, T_CASE = 25°C, I_OUT = 20A
Short at terminals
Disabled
Enabled, no load, T_CASE = 25°C
Effective value V_IN = 48V, 25°C
30
48
60
V
2.28
A
2.3
mA
0.75
1.2
mA
2.5
mA
1
V/µs
0.50
µF
EAIN Voltage Total Regulation
Output Voltage Trim Range
Line Regulation
Load Regulation
Output Voltage Ripple
Output Current
Current Limit
Maximum Array Size
Output Current, array of 2
Output Current, array of 3
Output Specifications
V_EAIN
V_{OUT_DC}
[2]
[2] [3]
ΔV_OUT / ΔV_IN @ 25°C, 30V < V_IN < 60V
ΔV_OUT / ΔI_OUT @ 25°C, 2A < I_OUT < 20A
V_{OUT_AC}
I_OUT = 20A, C_OUT = 12 x 47µF, 20MHz BW ^[4]
I_{OUT_DC}
[5]
I_{OUT_CL}
Typical current limit based on nominal 230nH inductor.
Minimum current limit includes worst case rated 10%
inductor tolerance
N_PARALLEL
[2]
I_{OUT_DC_ARRAY2} Total array capability, ^[2] see applications section for details
I_{OUT_DC_ARRAY3} Total array capability, ^[2] see applications section for details
0.975
4.0
0
20
0
0
0.990
5.0
0.10
0.10
75
23
1.005
6.5
20
V
V
%
%
mVp-p
A
A
3
Modules
[7]
A
[7]
A
Protection
Input UVLO Start Threshold
Input UVLO Stop Hysteresis
Input UVLO Response Time
V_{UVLO_START}
V_{UVLO_HYS}
27.0
29.1
V
1.66
2.08
2.50
V
1.25
µs
Input OVLO Stop Threshold
V_OVLO
62
64.3
V
Input OVLO Start Hysteresis
V_{OVLO_HYS} Hysteresis active when OVLO present for at least t_{FR_DLY}
0.90
1.17
1.60
V
Input OVLO Response Time
t_f
1.25
µs
Output Overvoltage Protection,
Relative
V_{OVP_REL}
Above set V_OUT
20
%
Output Overvoltage Protection,
Absolute
V_{OVP_ABS}
6.7
7.5
V
[1] _{All parameters reflect regulator and inductor system performance. Measurements were made using a standard PI352x evaluation board with 2.5 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.}
Output voltage is determined by an external feedback divider ratio.
[3] _{Output current capability may be limited and other performance may vary from noted electrical characteristics when VOUT is not set to nominal.}
[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] _{Contact factory applications for array derating and layout best practices to minimize sharing errors.}
Cool-Power^® ZVS Switching Regulators
Page 8 of 34
Rev 1.3
06/2017
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