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LM2731XMF_NOPB Datasheet(PDF) 4 Page - Texas Instruments

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Part No. LM2731XMF_NOPB
Description  LM2731 0.6/1.6 MHz Boost Converters With 22V Internal FET Switch in SOT-23
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Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
Logo TI1 - Texas Instruments

LM2731XMF_NOPB Datasheet(HTML) 4 Page - Texas Instruments

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TI Confidential - NDA Restrictions
LM2731
SNVS217F – MAY 2004 – REVISED NOVEMBER 2012
www.ti.com
Electrical Characteristics
Limits in standard typeface are for TJ = 25°C, and limits in boldface type apply over the full operating temperature range
(
−40°C ≤ TJ ≤ +125°C). Unless otherwise specified: VIN = 5V, VSHDN = 5V, IL = 0A.
Parameter
Test Conditions
Min(1)
Typ(2)
Max(1)
Units
VIN
Input Voltage
2.7
14
V
VOUT (MIN)
Minimum Output Voltage
RL = 43Ω
VIN = 2.7V
5.4
7
V
Under Load
X Option(3)
VIN = 3.3V
8
10
VIN = 5V
16
RL = 43Ω
VIN = 2.7V
6
7.5
Y Option(3)
VIN = 3.3V
8.75
11
VIN = 5V
15
RL = 15Ω
VIN = 2.7V
3.75
5
X Option(3)
VIN = 3.3V
5
6.5
VIN = 5V
10
RL = 15Ω
VIN = 2.7V
4
5
Y Option(3)
VIN = 3.3V
5.5
7
VIN = 5V
10
ISW
Switch Current Limit
See(4)
1.8
2
A
1.4
RDS(ON)
Switch ON Resistance
ISW = 100 mA
260
400
m
Vin = 5V
500
ISW = 100 mA
300
450
Vin = 3.3V
550
SHDNTH
Shutdown Threshold
Device ON
1.5
V
Device OFF
0.50
ISHDN
Shutdown Pin Bias Current VSHDN = 0
0
µA
VSHDN = 5V
0
2
VFB
Feedback Pin Reference
VIN = 3V
1.205
1.230
1.255
V
Voltage
IFB
Feedback Pin Bias Current
VFB = 1.23V
60
500
nA
IQ
Quiescent Current
VSHDN = 5V, Switching "X"
2
3.0
mA
VSHDN = 5V, Switching "Y"
1.0
2
VSHDN = 5V, Not Switching
400
500
µA
VSHDN = 0
0.024
1
ΔVFB/ΔVIN
FB Voltage Line
2.7V
≤ VIN ≤ 14V
0.02
%/V
Regulation
FSW
Switching Frequency(5)
“X” Option
1
1.6
1.85
MHz
“Y” Option
0.40
0.60
0.8
DMAX
Maximum Duty Cycle(5)
“X” Option
78
86
%
“Y” Option
88
93
IL
Switch Leakage
Not Switching VSW = 5V
1
µA
(1)
Limits are guaranteed by testing, statistical correlation, or design.
(2)
Typical values are derived from the mean value of a large quantity of samples tested during characterization and represent the most
likely expected value of the parameter at room temperature.
(3)
L = 10 µH, COUT = 4.7 µF, duty cycle = maximum
(4)
Switch current limit is dependent on duty cycle (see Typical Performance Characteristics).
(5)
Guaranteed limits are the same for Vin = 3.3V input.
4
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Copyright © 2004–2012, Texas Instruments Incorporated
Product Folder Links: LM2731


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