MQFL-28VE-1R8S
Output:
1.8V
Current:
40A
technical Specification
MQFL-28VE-1R8S ELECTRICAL CHARACTERISTICS
Parameter
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Non-Operating
Operating
Reverse Bias (Tcase = 125ºC)
Reverse Bias (Tcase = -55ºC)
Isolation Voltage (I/O to case, I to O)
Continuous
Transient (≤100µs)
Operating Case Temperature
Storage Case Temperature
Lead Temperature (20s)
Voltage at ENA1, ENA2
INPUT CHARACTERISTICS
Operating Input Voltage Range
"
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Lockout Voltage Hysteresis
Input Over-Voltage Shutdown
Turn-Off Voltage Threshold
Turn-On Voltage Threshold
Shutdown Voltage Hysteresis
Maximum Input Current
No Load Input Current (operating)
Disabled Input Current (ENA1)
Disabled Input Current (ENA2)
Input Terminal Current Ripple (pk-pk)
OUTPUT CHARACTERISTICS
Output Voltage Set Point (Tcase = 25ºC)
Output Voltage Set Point Over Temperature
Output Voltage Line Regulation
Output Voltage Load Regulation
Total Output Voltage Range
Output Voltage Ripple and Noise Peak to Peak
Operating Output Current Range
Operating Output Power Range
Output DC Current-Limit Inception
Short Circuit Output Current
Back-Drive Current Limit while Enabled
Back-Drive Current Limit while Disabled
Maximum Output Capacitance
DYNAMIC CHARACTERISTICS
Output Voltage Deviation Load Transient
For a Pos. Step Change in Load Current
For a Neg. Step Change in Load Current
Settling Time (either case)
Output Voltage Deviation Line Transient
For a Pos. Step Change in Line Voltage
For a Neg. Step Change in Line Voltage
Settling Time (either case)
Turn-On Transient
Output Voltage Rise Time
Output Voltage Overshoot
Turn-On Delay, Rising Vin
Turn-On Delay, Rising ENA1
Turn-On Delay, Rising ENA2
EFFICIENCY
Iout = 40A (16Vin)
Iout = 20A (16Vin)
Iout = 40A (28Vin)
Iout = 20A (28Vin)
Iout = 40A (40Vin)
Iout = 20A (40Vin)
Iout = 40A (70Vin)
Load Fault Power Dissipation
Short Circuit Power Dissipation
Min.
Typ.
Max. Units Notes & Conditions
Vin=28V dc ±5%, Iout=40A, CL=0µF, free running (see Note 10)
boost-converter non-operational unless otherwise specified
Group A
Subgroup
ad
pu
va
bl
ic n
at ce
io d
n
100
100
-0.8
-1.2
500
800
135
135
300
50
70
80
V
V
V
V
See Note 1
-500
-800
-55
-65
-1.2
16
5.5
V
V
°C
°C
°C
V
V
V
See Note 2
28
28
14.75
13.80
0.50
90.0
82.0
3.0
15.50
14.40
1.10
95.0
86.0
9.0
110
2
25
80
16.00
15.00
1.80
V
V
V
Continuous
Transient, 1s; see Under-Voltage Transient Profile
See Note 3
1, 2, 3
4, 5, 6
100.0
90.0
15.0
8
160
5
50
120
1.82
1.83
20
13
1.84
50
40
72
52
53
V
V
V
A
mA
mA
mA
mA
See Note 15
1, 2, 3
1, 2, 3
1, 2, 3
1,
1,
1,
1,
1,
1,
1,
1,
2,
2,
2,
2,
2,
2,
2,
2,
Vin = 16V; Iout = 40A
Vin = 16V, 28V, 70V
Vin = 16V, 28V, 70V
Bandwidth = 100kHz – 10MHz; see Figure 14
3
3
3
3
3
3
3
3
1.78
1.77
-20
5
1.76
0
0
41
41
1.80
1.80
0
9
1.80
15
46
47
13
10
50
10,000
V
V
mV
mV
V
mV
A
W
A
A
A
mA
µF
mV
mV
µs
Vout at sense leads
"
" ; Vin = 16V, 28V, 70V; Iout=40A
" ; Vout @ (Iout=0A) - Vout @ (Iout=40A)
"
Bandwidth = 10MHz; CL=11µF
See Note 4
Vout ≤ 1.2V
1
2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
See Note 5
4, 5, 6
4, 5, 6
4, 5, 6
-450
-300
300
350
450
-200
-200
250
6
0
5.5
3.0
1.5
200
200
500
10
25
8.0
6.0
3.0
mV
mV
µs
ms
%
ms
ms
ms
%
%
%
%
%
%
%
W
W
See Note 6
Total Iout step = 20A‹-›40A, 4A‹-›20A; CL=11µF
"
See Note 7
Vin step = 16V‹-›50V; CL=11µF; see Note 8
"
"
See Note 7
4, 5, 6
4, 5, 6
See Note 5
Vout = 0.18V-›1.62V
ENA1, ENA2 = 5V; see Notes 9 & 12
ENA2 = 5V; see Note 12
ENA1 = 5V; see Note 12
4, 5, 6
See Note 5
4, 5, 6
4, 5, 6
4, 5, 6
1,
1,
1,
1,
1,
1,
1,
1,
1,
2,
2,
2,
2,
2,
2,
2,
2,
2,
3
3
3
3
3
3
3
3
3
TBD
TBD
TBD
TBD
TBD
TBD
TBD
83
85
82
84
82
83
80
TBD
TBD
TBD
TBD
Iout at current limit inception point; See Note 4
Vout ≤ 1.2V
Doc.# 005-0005206 Rev. 1
Product # MQFL-28VE-1R8S
Phone 1-888-567-9596
www.synqor.com
04/22/09
Page 3
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