PI354X-00 Datasheet, PDF (18/39 Pages) –

PI354x-00
PI3545-00 (5.0V_OUT) Electrical Characteristics (Cont.)
Specifications apply for -40°C < T_J < 125°C, V_IN = 48V, EN = High, V_VDR = 5.1V +/- 2%, L1 = 420nH ^[1] unless other conditions are noted.
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Soft Start, Tracking and Error Amplifier
TRK Active Range (Nominal)
V_TRK
0
1.4
V
TRK Enable Threshold
V_{TRK_OV}
20
40
60
mV
TRK to EAIN Offset
V_{EIAN_OV} V_TRK = 0.5V, EA0 shorted to EAIN
50
80
110
mV
Charge Current (Soft-Start)
I_TRK
70
50
30
µA
Discharge Current (Fault)
I_{TRK_DIS}
V_TRK = 0.5V
10
mA
Soft-Start Time
t_SS
C_TRK = 0µF
0.6
0.94
1.6
ms
Error Amplifier Trans-Conductance
GM_EAO
[2]
5.1
mS
PSM Skip Threshold
PSM_SKIP
[2]
0.8
V
Error Amplifier Output Impedance
R_OUT
[2]
1
MΩ
Internal Compensation Capacitor
C_HF
[2]
56
pf
Internal Compensation Resistor
R_ZI
[2]
6
kΩ
[1] _{All parameters reflect regulator and inductor system performance. Measurements were made using a standard PI354x evaluation board with 2.5 x 4”}
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. 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.}
Cool-Power^® ZVS Switching Regulators
Page 18 of 39
Rev 1.6
03/2017
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