LM5026EVAL National Semiconductor, LM5026EVAL Datasheet - Page 5

• Manufacturer Part Number: LM5026EVAL
• Description: BOARD EVALUATION LM5026
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM5026EVAL

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Isolated
• Voltage - Output: 3.3V
• Current - Output: 30A
• Voltage - Input: 36 ~ 78V
• Regulator Topology: Buck
• Frequency - Switching: 230kHz
• Board Type: Fully Populated
• Utilized Ic / Part: LM5026
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Power - Output: -

Startup Regulator
V
I-V
V
Reference Supply
V
UVLO Shutdown/Standby
Current Limit
CC
CC
REF
Symbol
V
V
CS to GND
COMP Input Current
All other inputs to GND
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
Specifications with standard typeface are for T
perature range. V
IN
IN
CC
Reg
Supply
to GND
to GND
V
V
Startup Regulator
Leakage (external Vcc
Supply)
Shutdown Current (Iin) UVLO = 0V
V
Lockout Voltage
(positive going V
V
Hysteresis
V
(I
Ref Voltage
Ref Voltage Regulation I
Ref Current Limit
Undervoltage
Shutdown Threshold
Undervoltage
Shutdown Hysteresis
Undervoltage Standby
Threshold
Undervoltage Standby
Hysteresis Current
Source
Cycle by Cycle
Threshold Voltage
ILIM Delay to Output
Leading Edge Blanking
Time
CS Sink Impedance
(clocked)
CC
CC
CC
CC
CC
CC
)
Regulation
Current Limit
Under-voltage
Under-voltage
Supply Current
Parameter
IN
= 48V, V
cc
)
CC
= 10V, RT = 30.0kΩ, R
No Load
(Note
V
C
I
CS step from 0 to 0.6V Time to
onset of OUT transition (90%)
Cgate=0
I
REF
REF
CS
IN
gate
= 10mA
= 100V
= 0 mA
= 0 to 10mA
-0.3V to 105V
-0.3V to 16V
-0.3 to 1.0V
10mA
-0.3 to 7V
= 0, UVLO = 1.3V
4)
Conditions
J
(Note
= 25°C, and those with boldface type apply over full Operating Junction Tem-
1)
SET
= 34.8kΩ) unless otherwise stated
5
ESD Rating
Storage Temperature Range
Junction Temperature
V
External Voltage Applied to V
Operating Junction Temperature
Operating Ratings
IN
Human Body Model
Voltage
V
CC
220mV
4.85
1.21
0.45
Min
7.3
1.0
0.3
20
10
16
70
Reg -
(Note
2)
V
CC
120mV
1.25
Typ
165
350
100
(Note
7.6
1.5
0.4
0.1
0.5
25
25
20
20
40
30
Reg -
5
CC
3)
(Note
1)
2kV
-65°C to 150°C
150°C
Max
5.15
1.29
0.55
500
450
130
7.9
2.0
4.2
0.5
50
24
65
-40°C to +125°C
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13 to 100V
8V to 15V
Units
mA
mA
mV
mA
µA
µA
µA
ns
ns
V
V
V
V
V
V
V
V
Ω