Features LM27313Q is an automotive grade product that is AEC-Q100 grade 1 qualified (-40°C to +125°C operating junction temperature) 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 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. 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	Block Diagram click for larger image
Typical Performance click for larger image

Datasheets

Title		Size	Date	Other Language
	LM27313 1.6 MHz Boost Converter With 30V Internal FET Switch in SOT-23	358 Kbytes	28-Jul-11	日本語

Other Technical Documents

Title		Type	Date
	Boost Converter Efficiency Through Accurate Calculations	External Article	2008-09-01
	Your Walls Will Be Changing (Circuits for LCD Multimedia TV Panels)	External Article	2007-09-12

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LM27313XMF/NOPB LM27313XMF RoHS Status	SOT-23	Full production Lead Time: 6 weeks	Distributor Region Qty AITG Asia Pacific 1001 ARROW Worldwide 2255 AVNET-EM Worldwide 299 CEAC Asia Pacific 17000 DIGI-KEY Worldwide 8755 FARNELL Europe and Asia 5576 KEIKONG Asia Pacific 113900 MOUSER Worldwide 544 NEWARK Americas 3793 TAYLOR Americas 12074	$0.61 each at 1K+ pcs	reel of 1000
LM27313XMFX/NOPB LM27313XMFX RoHS Status	SOT-23	Full production Lead Time: 6 weeks	Distributor Region Qty AVNET-EM Worldwide 3000 DIGI-KEY Worldwide 0	$0.61 each at 1K+ pcs	reel of 3000
LM27313XQMF/NOPB RoHS Status	SOT-23	Full production Lead Time: 6 weeks	Contact your distributor	CALL	reel of 1000
LM27313XQMFX/NOPB RoHS Status	SOT-23	Full production Lead Time: 6 weeks	Contact your distributor	CALL	reel of 3000

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LM27313.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LM27313 is located at RoHS Status.

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LM27313XMF/NOPB LM27313XMF	14.696 14.801	SOT-23	5	1 1	260 260	Detail	Download	N/A	SRPB XTT
LM27313XMFX/NOPB LM27313XMFX	14.696 14.801	SOT-23	5	1 1	260 260	Detail	Download	N/A	SRPB XTT
LM27313XQMF/NOPB		SOT-23	5	1	260	Detail	Download	N/A	SD3B XTT
LM27313XQMFX/NOPB		SOT-23	5	1	260	Detail	Download	N/A	SD3B XTT

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LM27313.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LM27313 is located at RoHS Status.

CAD Symbols and Models Download LM27313 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM27313XMF	ABCD150	0	42680	0	0	6394000	1	1814314958
LM27313XMFX	ABCD150	0	42680	0	0	6394000	1	1814314958
LM27313XQMF	ABCD150	0	42680	0	0	6394000	1	1814314958
LM27313XQMFX	ABCD150	0	42680	0	0	6394000	1	1814314958

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.

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LM27313.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LM27313 is located at RoHS Status.