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LM2735YMF Scheda tecnica(PDF) 5 Page - Texas Instruments

Il numero della parte LM2735YMF
Spiegazioni elettronici  LM2735/LM2735-Q1 520kHz/1.6MHz ??Space-Efficient Boost and SEPIC DC-DC Regulator
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Produttore elettronici  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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LM2735YMF Scheda tecnica(HTML) 5 Page - Texas Instruments

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LM2735
www.ti.com
SNVS485F – JUNE 2007 – REVISED APRIL 2013
Electrical Characteristics
Limits in standard type are for TJ = 25°C only; limits in boldface type apply over the junction temperature range of (TJ = -
40°C to 125°C). Minimum and Maximum limits are specified through test, design, or statistical correlation. Typical values
represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. VIN = 5V unless
otherwise indicated under the Conditions column.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
−40°C ≤ to TJ ≤ +125°C (SOT-23)
1.230
1.255
1.280
0°C
≤ to TJ ≤ +125°C (SOT-23)
1.236
1.255
1.274
−40°C ≤ to TJ ≤ +125°C (WSON)
1.225
1.255
1.285
VFB
Feedback Voltage
V
−0°C ≤ to TJ ≤ +125°C (WSON)
1.229
1.255
1.281
−40°C ≤ to TJ ≤ +125°C
1.220
1.255
1.290
(MSOP-PowerPAD)
0°C
≤ to TJ ≤ +125°C (MSOP-PowerPAD)
1.230
1.255
1.280
ΔVFB/VIN
Feedback Voltage Line Regulation
VIN = 2.7V to 5.5V
0.06
%/V
IFB
Feedback Input Bias Current
0.1
1
µA
LM2735-X
1200
1600
2000
kHz
FSW
Switching Frequency
LM2735-Y
360
520
680
LM2735-X
88
96
DMAX
Maximum Duty Cycle
%
LM2735-Y
91
99
LM2735-X
5
DMIN
Minimum Duty Cycle
%
LM2735-Y
2
SOT-23 and MSOP-PowerPAD
170
330
RDS(ON)
Switch On Resistance
m
WSON
190
350
ICL
Switch Current Limit
2.1
3
A
SS
Soft Start
4
ms
LM2735-X
7.0
11
mA
Quiescent Current (switching)
IQ
LM2735-Y
3.4
7
Quiescent Current (shutdown)
All Options VEN = 0V
80
nA
Undervoltage Lockout
VIN Rising
2.3
2.65
V
UVLO
VIN Falling
1.7
1.9
Shutdown Threshold Voltage
See(1)
0.4
VEN_TH
V
Enable Threshold Voltage
See(1)
1.8
I-SW
Switch Leakage
VSW = 24V
1.0
µA
I-EN
Enable Pin Current
Sink/Source
100
nA
WSON and MSOP-PowerPAD Package
80
Junction to Ambient
θJA
°C/W
0 LFPM Air Flow(2)
SOT-23 Package
118
WSON and MSOP-PowerPAD Package
18
θJC
Junction to Case(2)
°C/W
SOT-23 Package
60
TSD
Thermal Shutdown Temperature(3)
160
°C
Thermal Shutdown Hysteresis
10
(1)
Do not allow this pin to float or be greater than VIN +0.3V.
(2)
Applies for packages soldered directly onto a 3” x 3” PC board with 2oz. copper on 4 layers in still air.
(3)
Thermal shutdown will occur if the junction temperature exceeds the maximum junction temperature of the device
Copyright © 2007–2013, Texas Instruments Incorporated
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