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LM2736YMKX датащи(PDF) 3 Page - Texas Instruments

номер детали LM2736YMKX
подробное описание детали  LM2736 Thin SOT 750mA Load Step-Down DC-DC Regulator
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производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
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LM2736YMKX датащи(HTML) 3 Page - Texas Instruments

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LM2736
www.ti.com
SNVS316F – SEPTEMBER 2004 – REVISED APRIL 2013
Operating Ratings
(1)
VIN
3V to 18V
SW Voltage
-0.5V to 18V
Boost Voltage
-0.5V to 23V
Boost to SW Voltage
1.6V to 5.5V
Junction Temperature Range
−40°C to +125°C
Thermal Resistance
θJA
(2)
118°C/W
(1)
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is intended to be functional, but specific performance is not ensured. For specific specifications and the test conditions,
see Electrical Characteristics.
(2)
Thermal shutdown will occur if the junction temperature exceeds 165°C. The maximum power dissipation is a function of TJ(MAX) , θJA
and TA . The maximum allowable power dissipation at any ambient temperature is PD = (TJ(MAX) – TA)/θJA . All numbers apply for
packages soldered directly onto a 3” x 3” PC board with 2oz. copper on 4 layers in still air. For a 2 layer board using 1 oz. copper in still
air,
θJA = 204°C/W.
Electrical Characteristics
Specifications with standard typeface are for TJ = 25°C, and those in boldface type apply over the full Operating
Temperature Range (TJ = -40°C to 125°C). VIN = 5V, VBOOST - VSW = 5V unless otherwise specified. Datasheet min/max
specification limits are ensured by design, test, or statistical analysis.
Symbol
Parameter
Conditions
Min(1)
Typ(2)
Max(1)
Units
VFB
Feedback Voltage
1.225
1.250
1.275
V
ΔVFB/ΔVIN
Feedback Voltage Line Regulation
VIN = 3V to 18V
0.01
% / V
IFB
Feedback Input Bias Current
Sink/Source
10
250
nA
Undervoltage Lockout
VIN Rising
2.74
2.90
UVLO
Undervoltage Lockout
VIN Falling
2.0
2.3
V
UVLO Hysteresis
0.30
0.44
0.62
LM2736X
1.2
1.6
1.9
FSW
Switching Frequency
MHz
LM2736Y
0.40
0.55
0.66
LM2736X
85
92
DMAX
Maximum Duty Cycle
%
LM2736Y
90
96
LM2736X
2
DMIN
Minimum Duty Cycle
%
LM2736Y
1
RDS(ON)
Switch ON Resistance
VBOOST - VSW = 3V
350
650
m
ICL
Switch Current Limit
VBOOST - VSW = 3V
1.0
1.5
2.3
A
IQ
Quiescent Current
Switching
1.5
2.5
mA
Quiescent Current (shutdown)
VEN = 0V
30
nA
LM2736X (50% Duty Cycle)
2.2
3.3
IBOOST
Boost Pin Current
mA
LM2736Y (50% Duty Cycle)
0.9
1.6
Shutdown Threshold Voltage
VEN Falling
0.4
VEN_TH
V
Enable Threshold Voltage
VEN Rising
1.8
IEN
Enable Pin Current
Sink/Source
10
nA
ISW
Switch Leakage
40
nA
(1)
Specified to Texas Instruments' Average Outgoing Quality Level (AOQL).
(2)
Typicals represent the most likely parametric norm.
Copyright © 2004–2013, Texas Instruments Incorporated
Submit Documentation Feedback
3
Product Folder Links: LM2736


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