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What is LMR24210?

This electronic component, produced by the manufacturer "National Semiconductor", performs the same function as "1.0A Step-Down Voltage Regulator".


LMR24210 Datasheet PDF - National Semiconductor

Part Number LMR24210
Description 1.0A Step-Down Voltage Regulator
Manufacturers National Semiconductor 
Logo National Semiconductor Logo 


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LMR24210
October 17, 2011
SIMPLE SWITCHER® 42Vin, 1.0A Step-Down Voltage
Regulator in micro SMD
Features
Input voltage range of 4.5V to 42V
Output voltage range of 0.8V to 24V
Output current up to 1.0A
Integrated low RDS(ON) synchronous MOSFETs for high
efficiency
Up to 1 MHz switching frequency
Low shutdown Iq, 25 µA typical
Programmable soft-start
No loop compensation required
COT architecture with ERM
28 bump micro SMD (2.45 x 3.64 x 0.60 mm) packaging
Fully enabled for WEBENCH®Power Designer
Performance Benefits
Tiny overall solution reduces system cost
Integrated synchronous MOSFETs provides high
efficiency at low output voltages
COT with ERM architecture requires no loop
compensation, reduces component count, and provides
ultra fast transient response
Stable with low ESR capacitors
Applications
Point-of-Load Conversions from 5V, 12V and 24V Rails
Space Constrained Applications
Industrial Distributed Power Applications
Power Meters
System Performance
Efficiency vs Load Current
(VOUT = 3.3V)
100
90
80
70
60
50
40
0.0
VIN = 4.5V
VIN = 9V
VIN = 12v
VIN = 24V
VIN = 42v
0.2 0.4 0.6 0.8
LOAD CURRENT (A)
VOUT Regulation vs Load Current
(VOUT = 3.3V)
0.20
0.15
0.10
0.05
0.00
1.0
30173870
-0.05
-0.10
-0.15
-0.20
0.0
VIN = 4.5V
VIN = 9V
VIN = 12V
VIN = 24V
VIN = 42V
0.2 0.4 0.6 0.8
LOAD CURRENT (A)
1.0
30173871
SIMPLE SWITCHER® is a registered trademark of National Semiconductor Corporation
© 2011 National Semiconductor Corporation 301738
www.national.com
Free Datasheet http://www.datasheet4u.com/

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LMR24210 equivalent
Symbol
TSD
TSD-HYS
Parameter
Thermal shutdown temperature
Thermal shutdown temperature
hysteresis
Conditions
TJ rising
TJ falling
Min Typ Max Units
165 °C
20 °C
Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the
device is intended to be functional. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2: The human body model is a 100pF capacitor discharged through a 1.5kresistor into each pin.
Note 3: Min and Max limits are 100% production tested at 25°C. Limits over the operating temperature range are guaranteed through correlation using Statistical
Quality Control (SQC) methods. Limits are used to calculate National's Average Outgoing Quality Level (AOQL).
Note 4: VCC provides self bias for the internal gate drive and control circuits. Device thermal limitations limit external loading.
Note 5: θJA calculations were performed in general accordance with JEDEC standards JESD51–1 to JESD51–11.
5 www.national.com
Free Datasheet http://www.datasheet4u.com/


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LMR24210 datasheet


1. PDF - Step-Down Voltage Regulator

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Featured Datasheets

Part NumberDescriptionMFRS
LMR24210The function is LMR24210 SIMPLE SWITCHER 42Vin 1.0A Step-Down Voltage Regulator (Rev. G). Texas InstrumentsTexas Instruments
LMR24210The function is 1.0A Step-Down Voltage Regulator. National SemiconductorNational Semiconductor

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