Texas Instruments LM5018 | Demoboard TIDA-00210 | Würth Elektronik Reference Design Search

reference designLM5018 | Demoboard TIDA-00210

Overview

Topology	Buck Converter
Input voltage	12-95 V
Output 1	12 V / 0.05 A
IC revision	E1

Description

The LM5018 is a 100-V, 300-mA synchronous step-down regulator with integrated high-side and low-side MOSFETs. The constant-on-time (COT) control scheme employed in the LM5018 device requires no loop compensation, provides excellent transient response, and enables very low step-down ratios. The on-time varies inversely with the input voltage resulting in nearly constant frequency over the input voltage range. A high-voltage startup regulator provides bias power for internal operation of the IC and for integrated gate drivers.

A peak current limit circuit protects against overload conditions. The undervoltage lockout (UVLO) circuit allows the input undervoltage threshold and hysteresis to be independently programmed. Other protection features include thermal shutdown and bias supply undervoltage lockout.

The LM5018 device is available in WSON-8 and SO PowerPAD-8 plastic packages.

Features

Wide 7.5 V to 100 V Input Range
Integrated 100 V, High and Low Side Switches
No Schottky Required
Constant On-time Control
No Loop Compensation Required
Ultra-Fast Transient Response
Nearly Constant Operating Frequency
Intelligent Peak Current Limit
Adjustable Output Voltage from 1.225 V
Precision 2% Feedback Reference
Frequency Adjustable to 1 MHz
Adjustable Undervoltage Lockout
Remote Shutdown
Thermal Shutdown
Packages:
WSON-8
SO PowerPAD-8

Typical applications

Telecommunication Systems
Isolated Bias Supply
Brush DC Motors
Bipolar Stepper Motors
Brush DC Motors
Automotive Electronics
Smart Power Meters
Bipolar Stepper Motors

More information

Products

Order Code	Datasheet	Simulation	Downloads	Product series	Application	PCB/Cable/Panel	Modularity	λ_{Dom typ.} (nm)	Emitting Color	λ_{Peak typ.} (nm)	I_{V typ.} (mcd)	V_{F typ.} (V)	Chip Technology	2θ_{50% typ.} (°)	C	Tol. C	V_R (V (DC))	Size	Operating Temperature	Q (%)	DF (%)	R_ISO	Ceramic Type	L (mm)	W (mm)	Fl (mm)	L (µH)	I_R (mA)	I_{R 2} (mA)	I_SAT (mA)	R_DC (mΩ)	f_res (MHz)	Endurance (h)	Operating Temperature	I_RIPPLE (mA)	I_Leak (µA)	Pitch (mm)	Ø D (mm)	Pins	Rows	H (mm)	Gender	Type	I_R (A)	Packaging
691311500002	SPEC	–	6 files EDA models: Components ZIP ALT Altium_WR-TBL (rev23f).IntLib \| 168.8 MB CDS Cadence_WR-TBL (rev23h).zip \| 338.1 MB EAG Eagle_WR-TBL Pluggable Connector (rev23b).lbr \| 3.8 MB CAD files ZIP 3D 691311500002_1 (rev1).pdf \| 71.1 KB IGS 691311500002 (rev1).igs \| 569.4 KB STP 691311500002 (rev1).stp \| 218.5 KB	WR-TBL Series 311 - 5.08 mm Open Vertical PCB Header	Pluggable	PCB	No	–	–	–	–	–	–	–	–	–	–	–	-40 °C up to +105 °C	–	–	–	–	10.16	–	–	–	–	–	–	–	–	–	-40 °C up to +105 °C	–	–	5.08	–	2	–	–	–	Vertical	20	Box
691311500103	SPEC	–	6 files EDA models: Components ZIP ALT Altium_WR-TBL (rev23f).IntLib \| 168.8 MB CDS Cadence_WR-TBL (rev23h).zip \| 338.1 MB EAG Eagle_WR-TBL Pluggable Connector (rev23b).lbr \| 3.8 MB CAD files ZIP 3D 691311500103_1 (rev1).pdf \| 89 KB IGS 691311500103 (rev1).igs \| 778.8 KB STP 691311500103 (rev1).stp \| 296.6 KB	WR-TBL Series 311 - 5.08 mm Close Vertical PCB Header	Pluggable	PCB	No	–	–	–	–	–	–	–	–	–	–	–	-40 °C up to +105 °C	–	–	–	–	17.24	–	–	–	–	–	–	–	–	–	–	–	–	5.08	–	3	–	–	–	Vertical	20	Box
74479887310A	SPEC		6 files EDA models: Components ZIP ALT WE-PMI (rev22d).IntLib \| 159 KB ZUK Cadstar_WE-PMI (rev21c).zip \| 16.1 KB CDS Cadence_WE-PMI (rev22a).zip \| 468.7 KB EAG Eagle_WE-PMI (rev23a).lbr \| 75.1 KB Electric models ZIP PSP PSpice_WE-PMI (rev22a).zip \| 15.7 KB SCS Spectre_WE-PMI (rev23a).mod \| 20 KB Download all 6 files as zip archive ZIP	WE-PMI Power Multilayer Inductor	–	–	–	–	–	–	–	–	–	–	–	–	–	1008	-40 °C up to +125 °C	27	–	–	–	2.5	2	–	10	600	850	125	300	20	–	-40 °C up to +125 °C	–	–	–	–	2	–	0.8	–	High Saturation Current	–	–
74404041101	SPEC		8 files EDA models: Components ZIP ALT WE-LQS (rev23a).IntLib \| 1.1 MB ZUK Cadstar_WE-LQS (rev20b).zip \| 20.4 KB CDS Cadence_WE-LQS (rev23a).zip \| 6.3 MB EAG Eagle_WE-LQS (rev23c).lbr \| 135.1 KB CAD files ZIP IGS Download_IGS_WE-LQS-4012 (rev1).igs \| 457.8 KB STP Download_STP_WE-LQS-4012 (rev1).stp \| 411.3 KB Electric models ZIP PSP PSpice_WE-LQS (rev23a).zip \| 36.9 KB SCS Spectre_WE-LQS (rev23a).mod \| 42.7 KB Download all 8 files as zip archive ZIP	WE-LQS SMT Power Inductor	–	–	–	–	–	–	–	–	–	–	–	–	–	4012	-40 °C up to +125 °C	–	–	–	–	4	4	–	100	–	–	300	1697	10	–	-40 °C up to +125 °C	–	–	–	–	–	–	1.2	–	–	0.43	–
150060RS75000	SPEC		25 files EDA models: Components ZIP ALT Altium_WL-SMCW (rev22d).IntLib \| 741.5 KB CDS Cadence_WL-SMCW (rev24a).zip \| 996.7 KB EAG Eagle_WL-SMCW (rev22c).lbr \| 64.2 KB CAD files ZIP IGS IGS_150060xS75000 (rev1).igs \| 314.9 KB STP STP_150060xS75000 (rev1).stp \| 135.1 KB Electric models ZIP PSP PSpice_WL-SMCW (rev22b).zip \| 9.8 KB RAY files RIR Photopia_rir_150060RS75000_5M (rev1p0).zip \| 121 MB SRC Lucaray-maker_src_150060RS75000_5M (rev1p0).zip \| 121 MB ASA ASAP-and-APEX_dis_150060RS75000_5M (rev1p0).zip \| 121 MB COD CodeV_ray_150060RS75000_5M (rev1p0).zip \| 121 MB FRE Fred_dat_150060RS75000_5M (rev1p0).zip \| 121 MB FRE Fred_txt_150060RS75000_5M (rev1p0).zip \| 189 MB LIG LightTools_ray_150060RS75000_5M (rev1p0).zip \| 121 MB LIG LightTools_txt_150060RS75000_5M (rev1p0).zip \| 189 MB LUC LucidShape_ray_150060RS75000_5M (rev1p0).zip \| 121 MB LUC LucidShape_txt_150060RS75000_5M (rev1p0).zip \| 189 MB OPT optalix_DIS_150060RS75000_5M (rev1p0).zip \| 121 MB OPT OpTaliX_txt_150060RS75000_5M (rev1p0).zip \| 189 MB OPT OptiCAD_dat_150060RS75000_5M (rev1p0).zip \| 121 MB OPT OptiCAD_txt_150060RS75000_5M (rev1p0).zip \| 189 MB SIM Simulux_ray_150060RS75000_5M (rev1p0).zip \| 121 MB SPE Speos_ray_150060RS75000_5M (rev1p0).zip \| 125.7 MB TRA TracePro_txt_150060RS75000_5M (rev1p0).zip \| 189.1 MB ZEM Zemax_dat_150060RS75000_5M (rev1p0).zip \| 189 MB ZEM ZemaxBin_dat_150060RS75000_5M (rev1p0).zip \| 121 MB	WL-SMCW SMT Mono-color Chip LED Waterclear	–	–	–	625	Red	630	250	2	AlInGaP	140	–	–	–	0603	-40 °C up to +85 °C	–	–	–	–	1.6	0.8	–	–	–	–	–	–	–	–	-40 °C up to +85 °C	–	–	–	–	–	–	0.7	–	–	–	Tape and Reel
150060GS75000	SPEC		25 files EDA models: Components ZIP ALT Altium_WL-SMCW (rev22d).IntLib \| 741.5 KB CDS Cadence_WL-SMCW (rev24a).zip \| 996.7 KB EAG Eagle_WL-SMCW (rev22c).lbr \| 64.2 KB CAD files ZIP IGS IGS_150060xS75000 (rev1).igs \| 314.9 KB STP STP_150060xS75000 (rev1).stp \| 135.1 KB Electric models ZIP PSP PSpice_WL-SMCW (rev22b).zip \| 9.8 KB RAY files RIR Photopia_rir_150060GS75000_5M (rev1p0).zip \| 120.7 MB SRC Lucaray-maker_src_150060GS75000_5M (rev1p0).zip \| 120.7 MB ASA ASAP-and-APEX_dis_150060GS75000_5M (rev1p0).zip \| 120.7 MB COD CodeV_ray_150060GS75000_5M (rev1p0).zip \| 120.7 MB FRE Fred_dat_150060GS75000_5M (rev1p0).zip \| 120.7 MB FRE Fred_txt_150060GS75000_5M (rev1p0).zip \| 189.4 MB LIG LightTools_ray_150060GS75000_5M (rev1p0).zip \| 120.7 MB LIG LightTools_txt_150060GS75000_5M (rev1p0).zip \| 189.4 MB LUC LucidShape_ray_150060GS75000_5M (rev1p0).zip \| 120.7 MB LUC LucidShape_txt_150060GS75000_5M (rev1p0).zip \| 189.4 MB OPT optalix_DIS_150060GS75000_5M (rev1p0).zip \| 120.7 MB OPT OpTaliX_txt_150060GS75000_5M (rev1p0).zip \| 189.4 MB OPT OptiCAD_dat_150060GS75000_5M (rev1p0).zip \| 120.7 MB OPT OptiCAD_txt_150060GS75000_5M (rev1p0).zip \| 189.4 MB SIM Simulux_ray_150060GS75000_5M (rev1p0).zip \| 120.7 MB SPE Speos_ray_150060GS75000_5M (rev1p0).zip \| 125.4 MB TRA TracePro_txt_150060GS75000_5M (rev1p0).zip \| 189.4 MB ZEM Zemax_dat_150060GS75000_5M (rev1p0).zip \| 189.4 MB ZEM ZemaxBin_dat_150060GS75000_5M (rev1p0).zip \| 120.7 MB	WL-SMCW SMT Mono-color Chip LED Waterclear	–	–	–	525	Green	515	430	3.2	InGaN	140	–	–	–	0603	-40 °C up to +85 °C	–	–	–	–	1.6	0.8	–	–	–	–	–	–	–	–	-40 °C up to +85 °C	–	–	–	–	–	–	0.7	–	–	–	Tape and Reel
860040875005	SPEC		7 files EDA models: Components ZIP ALT Altium_WCAP-ATUL (rev22e).IntLib \| 11.2 MB ZUK CadStar_WCAP-ATUL (rev19a).zip \| 16.2 KB CDS Cadence_WCAP-ATUL (rev22b).zip \| 28.3 MB EAG Eagle_WCAP-ATUL (rev22a).lbr \| 171.3 KB CAD files ZIP IGS IGS_WCAP-ATUL_10x25x5x0 (rev1).igs \| 5 MB STP Download_STP_860040x7xxxx (rev1).stp \| 2.1 MB Electric models ZIP PSP PSpice_WCAP-ATUL (rev22a).zip \| 21.5 KB Download all 7 files as zip archive ZIP	WCAP-ATUL Aluminum Electrolytic Capacitors	–	–	–	–	–	–	–	–	–	–	100 µF	±20%	100	–	–	–	9	–	–	25	–	–	–	–	–	–	–	–	7000	-40 °C up to +105 °C	800	100	5	10	–	–	–	–	–	–	Ammopack
885012205031	SPEC		8 files EDA models: Components ZIP ALT Altium_WCAP-CSGP (rev24b).IntLib \| 898 KB ZUK Cadstar_WCAP-CSGP (rev21c).zip \| 46.5 KB CDS Cadence_WCAP-CSGP (rev24b).zip \| 685.2 KB EAG Eagle_WCAP-CSGP (rev24b).lbr \| 1.1 MB CAD files ZIP 3D 1.0x0.5x0.5x0 (rev1).pdf \| 12.2 KB IGS 1.0x0.5x0.5x0 (rev1).igs \| 52.9 KB STP Download_STP_8850120050xx (rev1).stp \| 29.3 KB Electric models ZIP PSP PSpice_WCAP-CSGP (rev22c).zip \| 331.8 KB Download all 8 files as zip archive ZIP	WCAP-CSGP MLCCs 16 V(DC)	–	–	–	–	–	–	–	–	–	–	10 nF	±10%	16	0402	-55 °C up to +125 °C	–	3.5	10 GΩ	X7R Class II	1	0.5	0.25	–	–	–	–	–	–	–	–	–	–	–	–	–	–	0.5	–	–	–	7" Tape & Reel
885012205044	SPEC		8 files EDA models: Components ZIP ALT Altium_WCAP-CSGP (rev24b).IntLib \| 898 KB ZUK Cadstar_WCAP-CSGP (rev21c).zip \| 46.5 KB CDS Cadence_WCAP-CSGP (rev24b).zip \| 685.2 KB EAG Eagle_WCAP-CSGP (rev24b).lbr \| 1.1 MB CAD files ZIP 3D 1.0x0.5x0.5x0 (rev1).pdf \| 12.2 KB IGS 1.0x0.5x0.5x0 (rev1).igs \| 52.9 KB STP Download_STP_8850120050xx (rev1).stp \| 29.3 KB Electric models ZIP PSP PSpice_WCAP-CSGP (rev22c).zip \| 331.8 KB Download all 8 files as zip archive ZIP	WCAP-CSGP MLCCs 25 V(DC)	–	–	–	–	–	–	–	–	–	–	1 nF	±10%	25	0402	-55 °C up to +125 °C	–	3.5	10 GΩ	X7R Class II	1	0.5	0.25	–	–	–	–	–	–	–	–	–	–	–	–	–	–	0.5	–	–	–	7" Tape & Reel
885012205055	SPEC		8 files EDA models: Components ZIP ALT Altium_WCAP-CSGP (rev24b).IntLib \| 898 KB ZUK Cadstar_WCAP-CSGP (rev21c).zip \| 46.5 KB CDS Cadence_WCAP-CSGP (rev24b).zip \| 685.2 KB EAG Eagle_WCAP-CSGP (rev24b).lbr \| 1.1 MB CAD files ZIP 3D 1.0x0.5x0.5x0 (rev1).pdf \| 12.2 KB IGS 1.0x0.5x0.5x0 (rev1).igs \| 52.9 KB STP Download_STP_8850120050xx (rev1).stp \| 29.3 KB Electric models ZIP PSP PSpice_WCAP-CSGP (rev22c).zip \| 331.8 KB Download all 8 files as zip archive ZIP	WCAP-CSGP MLCCs 50 V(DC)	–	–	–	–	–	–	–	–	–	–	100 pF	±10%	50	0402	-55 °C up to +125 °C	–	2.5	10 GΩ	X7R Class II	1	0.5	0.25	–	–	–	–	–	–	–	–	–	–	–	–	–	–	0.5	–	–	–	7" Tape & Reel
885012106017	SPEC		8 files EDA models: Components ZIP ALT Altium_WCAP-CSGP (rev24b).IntLib \| 898 KB ZUK Cadstar_WCAP-CSGP (rev21c).zip \| 46.5 KB CDS Cadence_WCAP-CSGP (rev24b).zip \| 685.2 KB EAG Eagle_WCAP-CSGP (rev24b).lbr \| 1.1 MB CAD files ZIP 3D 1.6x0.8x0.8x0 (rev1).pdf \| 12.3 KB IGS 1.6x0.8x0.8x0 (rev1).igs \| 76.4 KB STP Download_STP_8850122060xx (rev1).stp \| 29.4 KB Electric models ZIP PSP PSpice_WCAP-CSGP (rev22c).zip \| 331.8 KB Download all 8 files as zip archive ZIP	WCAP-CSGP MLCCs 16 V(DC)	–	–	–	–	–	–	–	–	–	–	1 µF	±20%	16	0603	-55 °C up to +85 °C	–	10	0.1 GΩ	X5R Class II	1.6	0.8	0.4	–	–	–	–	–	–	–	–	–	–	–	–	–	–	0.8	–	–	–	7" Tape & Reel
61030421121	SPEC	–	6 files EDA models: Components ZIP ALT Altium_WR-PHD (rev24a).IntLib \| 34.1 MB CDS Cadence_WR-PHD (rev24c).zip \| 63.9 MB EAG Eagle_WR-PHD (rev24b).lbr \| 5.2 MB CAD files ZIP 3D 61030421121_1 (rev1).pdf \| 25.7 KB IGS 61030421121 (rev1).igs \| 324.8 KB STP 61030421121 (rev1).stp \| 132.8 KB	WR-PHD 2.54 mm SMT Dual Pin Header	–	–	–	–	–	–	–	–	–	–	–	–	–	–	-40 °C up to +105 °C	–	–	1000 MΩ	–	5.08	–	–	–	–	–	–	–	–	–	–	–	–	2.54	–	4	Dual	–	Pin Header	Straight	3	Tape and Reel with Cap
61031221121	SPEC	–	6 files EDA models: Components ZIP ALT Altium_WR-PHD (rev24a).IntLib \| 34.1 MB CDS Cadence_WR-PHD (rev24c).zip \| 63.9 MB EAG Eagle_WR-PHD (rev24b).lbr \| 5.2 MB CAD files ZIP 3D 61031221121_1 (rev1).pdf \| 50.9 KB IGS 61031221121 (rev1).igs \| 795.4 KB STP 61031221121 (rev1).stp \| 308.5 KB	WR-PHD 2.54 mm SMT Dual Pin Header	–	–	–	–	–	–	–	–	–	–	–	–	–	–	-40 °C up to +105 °C	–	–	1000 MΩ	–	15.24	–	–	–	–	–	–	–	–	–	–	–	–	2.54	–	12	Dual	–	Pin Header	Straight	3	Tape and Reel with Cap

Order Code	Datasheet	Simulation
691311500002	SPEC	–
691311500103	SPEC	–
74479887310A	SPEC
74404041101	SPEC
150060RS75000	SPEC
150060GS75000	SPEC
860040875005	SPEC
885012205031	SPEC
885012205044	SPEC
885012205055	SPEC
885012106017	SPEC
61030421121	SPEC	–
61031221121	SPEC	–

Samples

	Order Code	Datasheet	Simulation	Downloads	Product series	Application	PCB/Cable/Panel	Modularity	λ_{Dom typ.} (nm)	Emitting Color	λ_{Peak typ.} (nm)	I_{V typ.} (mcd)	V_{F typ.} (V)	Chip Technology	2θ_{50% typ.} (°)	C	Tol. C	V_R (V (DC))	Size	Operating Temperature	Q (%)	DF (%)	R_ISO	Ceramic Type	L (mm)	W (mm)	Fl (mm)	L (µH)	I_R (mA)	I_{R 2} (mA)	I_SAT (mA)	R_DC (mΩ)	f_res (MHz)	Endurance (h)	Operating Temperature	I_RIPPLE (mA)	I_Leak (µA)	Pitch (mm)	Ø D (mm)	Pins	Rows	H (mm)	Gender	Type	I_R (A)	Packaging	Samples

IC manufacturers (96)

Texas Instruments LM5018 | Demoboard TIDA-00210

LM5018 100-V, 300-mA Constant On-Time Synchronous Buck Regulator