EN2390QI Datasheet, PDF (5/21 Pages) Enpirion, Inc. – 9A Voltage Mode Synchronous Buck PWM

EN2390QI
Electrical Characteristics
NOTE: V_IN=12V, Minimum and Maximum values are over operating ambient temperature range unless otherwise noted.
Typical values are at T_A = 25°C.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNITS
Operating Input Voltage
PVIN
4.5
14.0
V
Controller Input Voltage
AVIN
2.5
5.5
V
PVIN Under Voltage
Lock-out
UVLO_PVIN
Voltage above which UVLO is not
asserted
2
V
AVIN Under Voltage
Lock-out rising
AVIN_UVLOR
Voltage above which UVLO is not
asserted
2.3
V
AVIN Under Voltage
Lock-out falling
AVIN_OVLOF
Voltage below which UVLO is
asserted
2.1
V
AVIN pin Input Current
Internal Linear
Regulator Output
Voltage
I_AVIN
AVINO
TBD
mA
3.3
V
Shut-Down Supply
IPVIN_S PVIN=12V, AVIN=3.3, ENABLE=0V
300
µA
Current
IAVIN_S PVIN=12V, AVIN=3.3, ENABLE=0V
50
µA
Feedback Pin Voltage
Feedback Pin Voltage
Feedback pin Input
Leakage Current
V_OUT Rise Time
Soft Start Capacitor
Range
Maximum Continuous
Output Current
Over Current Trip Level
Disable Threshold
ENABLE Threshold
ENABLE Lockout Time
ENABLE pin Input
Current
Switching Frequency
External SYNC Clock
Frequency Lock Range
S_IN Threshold – Low
S_IN Threshold – High
S_OUT Threshold – Low
S_OUT Threshold –
High
POK Lower Threshold
V_FB
V_FB
I_FB
t_RISE
C_{SS_RANGE}
I_{OUT_Max_Cont}
I_OCP
V_DISABLE
V_ENABLE
T_ENLOCKOUT
I_ENABLE
F_SW
F_{PLL_LOCK}
V_{S_IN_LO}
V_{S_IN_HI}
V_{S_OUT_LO}
V_{S_OUT_HI}
POK_LT
Feedback node voltage at:
VIN = 12V, ILOAD = 0, TA = 25°C
Feedback node voltage at:
4.5V ≤ VIN ≤ 14V
0A ≤ ILOAD ≤ 9A, TA = -40 to 85°C
VFB pin input leakage current
(Note 3)
C_SS = 47nF (Note 4 and Note 5)
Reference Table 2
ENABLE pin logic Low.
ENABLE pin logic High
180kΩ pull down (Note 3)
RFADJ =3kΩ
Range of SYNC clock frequency
S_IN clock logic low level
S_IN clock logic high level
S_OUT clock logic low level
S_OUT clock logic high level
Output voltage as a fraction of
expected output voltage
0.594 0.60 0.606
V
0.588 0.60 0.612
V
-5
5
1.5
2.0
2.5
TBD 47 TBD
9
13.5
0.0
0.6
1.8
AVIN
8
4
1.0
0.8
1.6
0.8
1.8
2.5
0.8
1.8
2.5
90
nA
ms
nF
A
A
V
V
ms
µA
MHz
MHz
V
V
V
V
%
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Enpirion Confidential
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