Features Internal 60V Startup Regulator 1A Peak MOSFET Gate Driver VIN Range 6V to 60V Duty Cycle Limit of 90% Programmable UVLO with Hysteresis Cycle-by-Cycle Current Limit External Synchronizable (AC-coupled) Single Resistor Oscillator Frequency Set Slope Compensation Adjustable Soft-start MSOP-10 Package Description The LM5022 is a high voltage low-side N-channel MOSFET controller ideal for use in boost and SEPIC regulators. It contains all of the features needed to implement single ended primary topologies. Output voltage regulation is based on current-mode control, which eases the design of loop compensation while providing inherent input voltage feed-forward. The LM5022 includes a start-up regulator that operates over a wide input range of 6V to 60V. The PWM controller is designed for high speed capability including an oscillator frequency range up to 2 MHz and total propagation delays less than 100 ns. Additional features include an error amplifier, precision reference, line under-voltage lockout, cycle-by-cycle current limit, slope compensation, soft-start, external synchronization capability and thermal shutdown. The LM5022 is available in the MSOP-10 package. Applications Boost Converter SEPIC Converter

WEBENCH® LM5022     Min   Max   Range     VIN – V    6.00 – 60.00V     VOUT V    6.00 – 300.00V     IOUT A    ≤ 20.00A     Ambient Temp °C    ≤ 100°C   Footprint BOM Cost Efficiency What are WEBENCH® tools? Also Recommended LM3421 Similar Output Power Range, Dedicated For Boost And Buck-boost LED Drivers LM3423 Similar To LM3421 (dedicated LED Driver) With More Features Than LM3421 LM3430▲ Vin 6V To 40V, Adds DHC, LLP-12 Package LM3481▲ Vin 2.97V To 48V LM5020▲ Vin 13V To 100V

Typical Application click for larger image	Block Diagram click for larger image
Typical Performance click for larger image

Parameters / Values	LM5022	LM3430	LM3481	LM5020
Input Min Voltage	6 Volt	6 Volt	2.97 Volt	13 Volt
Input Max Voltage	60 Volt	40 Volt	48 Volt	100 Volt
Adjustable Output	Yes	Yes	Yes	Yes
Feedback Voltage	1.25 Volt	1.25 Volt	1.275 Volt	1.25 Volt
Efficiency (peak)	90 %	94 %		85 %
Frequency Min	200 kHz	200 kHz	100 kHz	50 kHz
Frequency Max	2000 kHz	2000 kHz	1000 kHz	1000 kHz
Adj Switch Frequency	Yes	Yes	Yes	Yes
Sync Pin	Yes	Yes	Yes	Yes
On/Off Pin	Yes	No	Yes	Yes
SoftStart	Yes	Yes	Yes	Yes
PowerGood / Error Flag	No	No	No	No
Topology	Boost, Sepic	Boost	Boost, SEPIC, Flyback	Flyback, Inverting, Buck, Boost, Forward
Step-Down	No	No	No	Yes
Step-Up	Yes	Yes	Yes	Yes
Inverting	No	No	No	Yes
Flyback	No	No	Yes	Yes
RegType	Switching Controller	Switching Controller	Switching Controller	Switching Controller
Multiple Output Capability	No	No	Yes	Yes
Temperature Min	-40 deg C	-40 deg C	-40 deg C	-40 deg C
Temperature Max	125 deg C	125 deg C	125 deg C	125 deg C
Automotive	No	Yes	Yes
PowerWise	Yes	Yes		Yes

Datasheets

Title		Size	Date	Other Language
	LM5022 60V Low Side Controller for Boost and SEPIC	579 Kbytes	3-Oct-11	日本語

Application Notes

Title		Size	Date	Other Language
	AN-1557: Application Note 1557 LM5022 Evaluation Board	513 Kbytes	22-May-08	中文
	AN-1605: Application Note 1605 LM5022 Boost LED Driver Evaluation Board	769 Kbytes	2-Oct-07
	AN-1696: Application Note 1696 Designing a Boost LED Driver Using the LM5022	286 Kbytes	22-Feb-08	中文
	AN-1656: Application Note 1656 Design Challenges of Switching LED Drivers	203 Kbytes	18-Oct-07	日本語 中文

Other Technical Documents

Title		Type	Date
	Driving LEDs: To Cap or Not to Cap	Power Designer	2007-03-21

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LM5022MM/NOPB LM5022MM RoHS Status	MINI SOIC	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 1885 DIGI-KEY Worldwide 2544 FARNELL Europe and Asia 999 MOUSER Worldwide 995 NEWARK Americas 143 RS COMPONENTS Worldwide 600 RSL MICRO Asia Pacific 5000 TAYLOR Americas 8184	$1.13 each at 1K+ pcs	reel of 1000
LM5022MME/NOPB RoHS Status	MINI SOIC	Full production Lead Time: 8 weeks	Distributor Region Qty ARROW Worldwide 250 AVNET-EM Worldwide 500 DIGI-KEY Worldwide 0 TAYLOR Americas 250	$1.13 each at 1K+ pcs	reel of 250
LM5022MMX/NOPB LM5022MMX RoHS Status	MINI SOIC	Full production Lead Time: 8 weeks	Distributor Region Qty AVNET-EM Worldwide 3500 DIGI-KEY Worldwide 0	$1.13 each at 1K+ pcs	reel of 3500

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 LM5022.

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 LM5022 is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LM5022BSTBLDT	evaluation board	Full production	Contact your distributor	CALL	N/A

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LM5022EVAL/NOPB	60V Low Side Controller for Boost Evaluation Board	Full production Lead Free (RoHS)	Distributor Region Qty AVNET-EM Worldwide 2 DIGI-KEY Worldwide 0 MOUSER Worldwide 2	$57.00 each	1
LM5022 60V Low Side Controller for Boost and SEPIC Features: Internal 60V Startup Regulator 1A Peak MOSFET Gate Driver VIN Range 6V to 60V Duty Cycle Limit of 90% Programmable UVLO with Hysteresis Cycle-by-Cycle Current Limit External Sychronizable (AC-coupled) Single Resistor Oscillator Frequency Set Slope Compensation Adjustable Soft-start MSOP-10 Package Applications: Boost Converter SEPIC Converter LM5022 Package Includes: A fully assembled LM5022 Boost evaluation board LM5022 datasheet LM5022 Boost eval board App note AN-1557

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LM5022SEPBLDT	evaluation board	Full production	Contact your distributor	CALL	N/A

National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C1) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/en/packaging/greennopb.html. Lead free products are RoHS compliant.

Lead Free product status is available through the search tool located here

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LM5022MM/NOPB LM5022MM	29.841 30.002	MINI SOIC	10	1 1	260 260	Detail	Download	N/A	ZXTT 5022
LM5022MME/NOPB	29.841	MINI SOIC	10	1	260	Detail	Download	N/A	ZXTT 5022
LM5022MMX/NOPB LM5022MMX	29.841 30.002	MINI SOIC	10	1 1	260 260	Detail	Download	N/A	ZXTT 5022

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 LM5022.

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 LM5022 is located at RoHS Status.

Design Tools

Title	Size	Date
Matching Driver to LED
Current Mode Modeling - Reference Guide
Understanding and Applying Current-Mode Control Theory
Article - High PoE Made Easy

CAD Symbols and Models Download LM5022 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM5022MM	ABCD150XV1	0	3868	0	0	2595000	2	736338335
LM5022MME	ABCD150XV1	0	3868	0	0	2595000	2	736338335
LM5022MMX	ABCD150XV1	0	3868	0	0	2595000	2	736338335

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 LM5022.

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 LM5022 is located at RoHS Status.

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