LMR24210 Datasheet PDF - National Semiconductor
Part Number | LMR24210 | |
Description | 1.0A Step-Down Voltage Regulator | |
Manufacturers | National Semiconductor | |
Logo | ||
There is a preview and LMR24210 download ( pdf file ) link at the bottom of this page. Total 18 Pages |
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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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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 1.5kΩ resistor 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
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for LMR24210 electronic component. |
Information | Total 18 Pages | |
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