LM27313 - 1.6 MHz Boost Converter With 30V Internal FET Switch in SOT-23
Datasheet Packaging Samples & Pricing Reliability Design Tools Application Notes Knowledge Base

Features
30V DMOS FET switch
1.6 MHz switching frequency
Low RDS(ON) DMOS FET
Switch current up to 800 mA
Wide input voltage range (2.7V–14V)
Low shutdown current (<1 µA)
5-Lead SOT-23 package
Uses tiny capacitors and inductors
Cycle-by-cycle current limiting
Internally compensated

General Description


The LM27313 switching regulator is a current-mode boost converter with a fixed operating frequency of 1.6 MHz.

The use of the SOT-23 package, made possible by the minimal losses of the 800 mA switch, and small inductors and capacitors result in extremely high power density. More...


Applications


White LED Current Source
PDA’s and Palm-Top Computers
Digital Cameras
Portable Phones, Games and Media Players
GPS Devices
  Typical Application
click for larger image


ParametersValues
Output Range 4 to 28V
Switch Current 1 Amp
Input Min Voltage 2.7 Volt
Input Max Voltage 14 Volt
Feedback Voltage 1.23 Volt
Frequency Max 1600 kHz
Output Min 4 Volt
Output Max 28 Volt
Efficiency (peak) 90 %
Sync Pin No
Adj Switch Frequency No
Frequency Min 1600 kHz
On/Off Pin Yes
Error Flag No
SoftStart No
Topology CV boost
Step-Up Yes
Inverting No
Flyback No
RegType Switching Regulator
Adjustable Output Yes
Output Power 2.5 Watt
Temperature Min -40 deg C
Temperature Max +125 deg C


Typical Performance


click for larger image


  Additional Resources
Design Tools

Application Notes


Block Diagram


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Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LM27313 1.6 MHz Boost Converter With 30V Internal FET Switch in SOT-23 337
Kbytes
8-Jul-07 Download
LM27313 1.6 MHz Boost Converter With 30V Internal FET Switch in SOT-23 (Japanese)
327 Kbytes   Download

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Package Availability, Models, Samples & Pricing
Part NumberPackageFactory Lead TimeModelsSamples &
Electronic
Orders
Budgetary PricingStd
Pack
Size
Package
Marking
Format
TypePinsSpec.MSL
Rating
Peak
Reflow
RoHS
Report
CAD
Symbols
WeeksQtyQty$US each
LM27313XMFSOT-235NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
Samples
Buy Now
1K+$0.61reel
of
1000
SRPB
XTT
6 weeks5000
LM27313XMFXSOT-235NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
 
Buy Now
1K+$0.61reel
of
3000
SRPB
XTT
6 weeks7500

General Description


The LM27313 switching regulator is a current-mode boost converter with a fixed operating frequency of 1.6 MHz.

The use of the SOT-23 package, made possible by the minimal losses of the 800 mA switch, and small inductors and capacitors result in extremely high power density. The 30V internal switch makes these solutions perfect for boosting to voltages of 5V to 28V.

This part has a logic-level shutdown pin that can be used to reduce quiescent current and extend battery life.

Protection is provided through cycle-by-cycle current limiting and thermal shutdown. Internal compensation simplifies design and reduces component count.

Reliability Metrics


Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM27313XMFABCD15003417500423400011201409060
LM27313XMFXABCD15003417500423400011201409060

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.


Design Tools


TitleSize in Kbytes Date Click link below to Download    
Article - Your Walls Will Be Changing     View    

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More Application Notes


TitleSize in Kbytes Date Click link below to Download
AN-1280: Application Note 1280 LM2731/LM2733 Evaluation Board 55
Kbytes
18-Apr-03 Download

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[Information as of 8-Nov-2009]