LM2731_07 Datasheet, PDF (5/16 Pages) National Semiconductor (TI) – 0.6/1.6 MHz Boost Converters With 22V Internal FET Switch in SOT-23

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