LM2731XEVAL National Semiconductor, LM2731XEVAL Datasheet - Page 4

• Manufacturer Part Number: LM2731XEVAL
• Description: BOARD EVALUATION LM2731X
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM2731XEVAL

• Main Purpose: DC/DC, Step Up
• Outputs And Type: 1, Non-Isolated
• Current - Output: 1.8A
• Voltage - Input: 2.7 ~ 14V
• Regulator Topology: Boost
• Frequency - Switching: 1.6MHz
• Board Type: Fully Populated
• Utilized Ic / Part: LM2731
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Voltage - Output: -
• Power - Output: -

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V
V
I
R
SHDN
I
V
I
I
F
SW
SHDN
FB
Q
SW
IN
OUT (MIN)
FB
DS
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
Limits in standard typeface are for T
(−40°C
Storage Temperature Range
Operating Junction
Lead Temp. (Soldering, 5 sec.)
(ON)
Symbol
TH
Temperature Range
≤
T
J
≤
+125°C). Unless otherwise specified: V
Input Voltage
Minimum Output Voltage
Under Load
Switch Current Limit
Switch ON Resistance
Shutdown Threshold
Shutdown Pin Bias
Current
Feedback Pin Reference
Voltage
Feedback Pin Bias
Current
Quiescent Current
FB Voltage Line
Regulation
Switching Frequency
(Note
7)
Parameter
J
= 25°C, and limits in boldface type apply over the full operating temperature range
−65°C to +150°C
−40°C to +125°C
R
X Option
(Note
R
Y Option
(Note
R
X Option
(Note
R
Y Option
(Note
(Note
I
Vin = 5V
I
Vin = 3.3V
Device ON
Device OFF
V
V
V
V
V
V
V
V
2.7V
“X” Option
“Y” Option
SW
SW
SHDN
SHDN
IN
FB
SHDN
SHDN
SHDN
SHDN
L
L
L
L
= 43Ω
= 43Ω
= 15Ω
= 15Ω
= 100 mA
= 100 mA
= 3V
(Note
Conditions
= 1.23V
≤
8)
8)
8)
8)
6)
= 0
= 5V
= 5V, Switching "X"
= 5V, Switching "Y"
= 5V, Not Switching
= 0
V
IN
300°C
1)
IN
≤
= 5V, V
14V
4
SHDN
V
V
V
V
V
V
V
V
V
V
V
V
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
= 2.7V
= 3.3V
= 5V
= 2.7V
= 3.3V
= 5V
= 2.7V
= 3.3V
= 5V
= 2.7V
= 3.3V
= 5V
Power Dissipation
FB Pin Voltage
SW Pin Voltage
Input Supply Voltage
SHDN Pin Voltage
θ
ESD Rating
= 5V, I
J-A
(SOT23-5)
Human Body Model
L
= 0A.
(Note
(Note
1.205
8.25
10.5
3.75
8.75
0.40
Min
2.7
5.4
5.5
1.8
1.4
1.5
13
14
8
5
5
9
1
3)
(Note
4)
2)
(Note
Typical
1.230
0.024
0.02
0.60
260
300
400
6.5
7.5
1.0
1.6
10
17
10
12
16
11
11
60
7
5
6
2
0
0
2
5)
(Note
−0.4V to VIN + 0.3V
1.255
Max
0.50
1.85
400
500
450
550
500
500
3.0
0.8
14
Internally Limited
2
2
1
−0.4V to +14.5V
−0.4V to +22V
4)
−0.4V to +6V
265°C/W
Units
MHz
%/V
mΩ
mA
µA
nA
µA
2 kV
V
V
A
V
V