Document
LMR64010 SIMPLE SWITCHER® 40Vout, 1A Step-Up Voltage Regulator in SOT-23
September 23, 2011
LMR64010 SIMPLE SWITCHER® 40Vout, 1A Step-Up Voltage Regulator in SOT-23
Applications
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30167501
Boost Conversions from 3.3V, 5V, and 12V Rails Space Constrained Applications Embedded Systems LCD Displays LED Applications
Features
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Input voltage range of 2.7V to 14V Output voltage up to 40V Switch current up to 1A 1.6 MHz switching frequency Low shutdown Iq, <1 µA Cycle-by-cycle current limiting Internally compensated SOT23-5 packaging (2.92 x 2.84 x 1.08mm) Fully enabled for WEBENCH® Power Designer
System Performance
Performance Benefits
■ Extremely easy to use ■ Tiny overall solution reduces system cost
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30167558
© 2011 National Semiconductor Corporation
301675
www.national.com
Free Datasheet http://www.datasheet4u.com/
LMR64010
Connection Diagram
Top View
30167502
5-Lead SOT-23 Package See NS Package Number MF05A
Ordering Information
Order Number LMR64010XMFE LMR64010XMF LMR64010XMFX SOT23-5 MF05A Package Type Package Drawing Supplied As 250 Units, Tape and Reel 1000 Units, Tape and Reel 3000 Units, Tape and Reel Package ID SF9B
Pin Descriptions
Pin 1 2 3 4 5 Name SW GND FB SHDN VIN Drain of the internal FET switch. Analog and power ground. Feedback point that connects to external resistive divider. Shutdown control input. Connect to VIN if this feature is not used. Analog and power input. Function
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Free Datasheet http://www.datasheet4u.com/
LMR64010
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Storage Temperature Range Operating Junction Temperature Range Lead Temp. (Soldering, 5 sec.) Power Dissipation (Note 2) FB Pin Voltage −65°C to +150°C −40°C to +125°C 300°C Internally Limited −0.4V to +6V
SW Pin Voltage Input Supply Voltage SHDN Pin Voltage
−0.4V to +40V −0.4V to +14.5V −0.4V to VIN + 0.3V
θJ-A (SOT23-5) 265°C/W ESD Rating (Note 3) Human Body Model 2 kV Machine Model 200V For soldering specifications: see product folder at www.national.com and www.national.com/ms/MS/MSSOLDERING.pdf
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. Symbol VIN ISW RDS(ON) SHDNTH ISHDN VFB IFB IQ Parameter Input Voltage Switch Current Limit Switch ON Resistance Shutdown Threshold Shutdown Pin Bias Current Feedback Pin Reference Voltage Feedback Pin Bias Current Quiescent Current (Note 6) ISW = 100 mA Device ON Device OFF VSHDN = 0 VSHDN = 5V VIN = 3V VFB = 1.23V VSHDN = 5V, Switching VSHDN = 5V, Not Switching VSHDN = 0 FB Voltage Line Regulation 2.7V ≤ VIN ≤ 14V 1.15 87 Not Switching VSW = 5V 1.205 0 0 1.230 60 2.1 400 0.024 0.02 1.6 93 1 1.85 3.0 500 1 2 1.255 1.5.