Onsemi NCP3170 | Demoboard NEBO52 | Würth Elektronik Reference Design Search

reference designNCP3170 | Demoboard NEBO52

Overview

Topology	Buck Converter
Input voltage	4.5-18 V
Switching frequency	1000 kHz
Output 1	5 V / 3 A
IC revision	2

Description

The NCP3170 is a flexible synchronous PWM Switching Buck Regulator. The NCP3170 operates from 4.5 V to 18 V, producing up to 3 A and is capable of producing output voltages as low as 0.8 V. The NCP3170 also incorporates current mode control. To reduce the number of external components, a number of features are internally set including soft start, power good detection, and switching frequency. The NCP3170 is currently available in an SOIC-8 package.

Features

4.5 V to 18 V Operating Input Voltage Range
90mΩ High-Side, 24mΩ Low-Side MOSFET
Output Voltage Adjustable to 0.8 V
3 A Continuous Output Current
Fixed 500 kHz and 1 MHz PWM Operation
1.5% Initial Output Accuracy
Internal 4 ms SoftStart
ShortCircuit Protection
Thermal Shutdown
Light Load Efficiency
Dedicated PowerGood and ENABLE pin

Typical applications

Point of Load (POL) DC/DC Regulator
Set-Top-Box (STB)

More information

Products

Order Code	Datasheet	Simulation	Downloads	Status	Product series	λ_{Dom typ.} (nm)	Emitting Color	λ_{Peak typ.} (nm)	I_{V typ.} (mcd)	V_{F typ.} (V)	Chip Technology	2θ_{50% typ.} (°)	Pins (pcs)	Center pin Ø (Value) (mm)	Plug OD (mm)	Type	Variant	I_R (A)	Working Voltage (V (AC))	Packaging	Application	Interface Type	Gender	Mount	I_R (A)	Pitch (mm)	Rows	H (mm)	Operation Force (g)	Electrical Life (Cycles)	Actuator Color	Washable	Vaporphase process
150060BS75000	SPEC		26 files EDA models: Components ZIP ALT Altium_WL-SMCW (rev24b).IntLib \| 246 KB CDS Cadence_WL-SMCW (rev24b).zip \| 1 MB EAG Eagle_WL-SMCW (rev25a).lbr \| 82.3 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 (rev24b).zip \| 10.9 KB RAY files ASA ASAP-and-APEX_dis_150060BS75000_5M (rev1p0).zip \| 120.7 MB COD CodeV_ray_150060BS75000_5M (rev1p0).zip \| 120.7 MB FRE Fred_dat_150060BS75000_5M (rev1p0).zip \| 120.7 MB FRE Fred_txt_150060BS75000_5M (rev1p0).zip \| 189.6 MB LIG LightTools_ray_150060BS75000_5M (rev1p0).zip \| 120.7 MB LIG LightTools_txt_150060BS75000_5M (rev1p0).zip \| 189.6 MB LUC LucidShape_ray_150060BS75000_5M (rev1p0).zip \| 120.7 MB LUC LucidShape_txt_150060BS75000_5M (rev1p0).zip \| 189.6 MB OPT OpTaliX_txt_150060BS75000_5M (rev1p0).zip \| 189.6 MB OPT OptiCAD_dat_150060BS75000_5M (rev1p0).zip \| 120.7 MB OPT OptiCAD_txt_150060BS75000_5M (rev1p0).zip \| 189.6 MB OPT optalix_DIS_150060BS75000_5M (rev1p0).zip \| 120.7 MB RIR Photopia_rir_150060BS75000_5M (rev1p0).zip \| 120.7 MB SIM Simulux_ray_150060BS75000_5M (rev1p0).zip \| 120.7 MB SPE Speos_ray_150060BS75000_5M (rev1p0).zip \| 125.5 MB SRC Lucaray-maker_src_150060BS75000_5M (rev1p0).zip \| 120.7 MB TRA TracePro_txt_150060BS75000_5M (rev1p0).zip \| 189.6 MB ZEM ZemaxBin_dat_150060BS75000_5M (rev1p0).zip \| 120.7 MB ZEM Zemax_dat_150060BS75000_5M (rev1p0).zip \| 189.6 MB Certificates ZIP CER IR_LED_certificate_WL-SMCW-0603 (rev1).pdf \| 964.2 KB	Active i\| Production is active. Expected lifetime: >10 years.	WL-SMCW SMT Mono-color Chip LED Waterclear	470	Blue	465	145	3.2	InGaN	140	–	–	–	–	–	–	–	Tape and Reel	–	–	–	SMT	–	–	–	0.7	–	–	–	–	–
150060RS75000	SPEC		26 files EDA models: Components ZIP ALT Altium_WL-SMCW (rev24b).IntLib \| 246 KB CDS Cadence_WL-SMCW (rev24b).zip \| 1 MB EAG Eagle_WL-SMCW (rev25a).lbr \| 82.3 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 (rev24b).zip \| 10.9 KB RAY files 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_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 OPT optalix_DIS_150060RS75000_5M (rev1p0).zip \| 121 MB RIR Photopia_rir_150060RS75000_5M (rev1p0).zip \| 121 MB SIM Simulux_ray_150060RS75000_5M (rev1p0).zip \| 121 MB SPE Speos_ray_150060RS75000_5M (rev1p0).zip \| 125.7 MB SRC Lucaray-maker_src_150060RS75000_5M (rev1p0).zip \| 121 MB TRA TracePro_txt_150060RS75000_5M (rev1p0).zip \| 189.1 MB ZEM ZemaxBin_dat_150060RS75000_5M (rev1p0).zip \| 121 MB ZEM Zemax_dat_150060RS75000_5M (rev1p0).zip \| 189 MB Certificates ZIP CER IR_LED_certificate_WL-SMCW-0603 (rev1).pdf \| 964.2 KB	Active i\| Production is active. Expected lifetime: >10 years.	WL-SMCW SMT Mono-color Chip LED Waterclear	625	Red	630	250	2	AlInGaP	140	–	–	–	–	–	–	–	Tape and Reel	–	–	–	SMT	–	–	–	0.7	–	–	–	–	–
61301011821	SPEC	–	7 files EDA models: Components ZIP ALT Altium_WR-PHD (rev24a).IntLib \| 34.1 MB CDS Cadence_WR-PHD (rev25a).zip \| 65.8 MB EAG Eagle_WR-PHD (rev25a).lbr \| 5.2 MB KIC KiCad_WR-PHD (rev25a).zip \| 311.3 MB CAD files ZIP 3D 61301011821_1 (rev1).pdf \| 71.2 KB IGS 61301011821 (rev1).igs \| 871.5 KB STP 61301011821 (rev1).stp \| 352.3 KB	Active i\| Production is active. Expected lifetime: >10 years.	WR-PHD Socket Header - Single	–	–	–	–	–	–	–	10	–	–	Straight	–	3	250	Tray	–	–	Socket Header	THT	–	2.54	Single	–	–	–	–	–	–
61303621821	SPEC	–	7 files EDA models: Components ZIP ALT Altium_WR-PHD (rev24a).IntLib \| 34.1 MB CDS Cadence_WR-PHD (rev25a).zip \| 65.8 MB EAG Eagle_WR-PHD (rev25a).lbr \| 5.2 MB KIC KiCad_WR-PHD (rev25a).zip \| 311.3 MB CAD files ZIP 3D 61303621821_1 (rev1).pdf \| 170.2 KB IGS 61303621821 (rev1).iges \| 2.6 MB STP 61303621821 (rev1).stp \| 635.3 KB	Active i\| Production is active. Expected lifetime: >10 years.	WR-PHD Socket Header - Dual	–	–	–	–	–	–	–	36	–	–	Straight	–	3	250	Tray	–	–	Socket Header	THT	3	2.54	Dual	–	–	–	–	–	–
694108106102	SPEC PCN pending Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. SPEC Datasheet valid to 18/12/2025 SPEC Datasheet valid from 19/12/2025 PCN PCN document	–	7 files EDA models: Components ZIP ALT Altium_WR-DC (rev22a).IntLib \| 1.8 MB CDS Cadence_WR-DC (rev23a).zip \| 5 MB EAG Eagle_WR-DC (rev21a).lbr \| 137.8 KB KIC KiCad_WR-DC (rev25a).zip \| 3.4 MB CAD files ZIP 3D 694108106102 (rev1).pdf \| 293.4 KB IGS 694108106102 (rev1).igs \| 1.9 MB STP 694108106102 (rev1).stp \| 453.3 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WR-DC Power Jacks	–	–	–	–	–	–	–	–	2.5	5.5	Right Angled	with Pegs	5	24	Tape and Reel	–	–	–	SMT	5	–	–	–	–	–	–	–	–
434121025816	SPEC	–	5 files EDA models: Components ZIP ALT Altium_WS-TASV (rev24d).IntLib \| 2.1 MB CDS Cadence_WS-TASV (rev24c).zip \| 13.6 MB EAG Eagle_WS-TASV (rev25a).lbr \| 448 KB CAD files ZIP IGS 434121025816 (rev1).igs \| 844 KB STP 434121025816 (rev1).stp \| 246.6 KB Download all 5 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WS-TASV SMT Tact Switch 6.0x3.8 mm	–	–	–	–	–	–	–	–	–	–	–	–	0.05	–	Tape and Reel	–	–	–	–	–	–	–	2.5	160	50000	Black	No	not specified
61300211121	SPEC	–	7 files EDA models: Components ZIP ALT Altium_WR-PHD (rev24a).IntLib \| 34.1 MB CDS Cadence_WR-PHD (rev25a).zip \| 65.8 MB EAG Eagle_WR-PHD (rev25a).lbr \| 5.2 MB KIC KiCad_WR-PHD (rev25a).zip \| 311.3 MB CAD files ZIP 3D 3D_61300211121 (rev1).pdf \| 21.6 KB IGS Download_IGES_61300211121 (rev1).iges \| 257.6 KB STP Download_STP_61300211121 (rev1).stp \| 63.3 KB	Active i\| Production is active. Expected lifetime: >10 years.	WR-PHD Pin Header - Single	–	–	–	–	–	–	–	2	–	–	Straight	–	3	250	Bag	–	–	Pin Header	THT	–	2.54	Single	–	–	–	–	–	–
61300311121	SPEC	–	7 files EDA models: Components ZIP ALT Altium_WR-PHD (rev24a).IntLib \| 34.1 MB CDS Cadence_WR-PHD (rev25a).zip \| 65.8 MB EAG Eagle_WR-PHD (rev25a).lbr \| 5.2 MB KIC KiCad_WR-PHD (rev25a).zip \| 311.3 MB CAD files ZIP 3D 3D_61300311121 (rev1).pdf \| 25.9 KB IGS Download_IGES_61300311121 (rev1).iges \| 345.8 KB STP Download_STP_61300311121 (rev1).stp \| 83.8 KB	Active i\| Production is active. Expected lifetime: >10 years.	WR-PHD Pin Header - Single	–	–	–	–	–	–	–	3	–	–	Straight	–	3	250	Bag	–	–	Pin Header	THT	–	2.54	Single	–	–	–	–	–	–
61300621121	SPEC	–	7 files EDA models: Components ZIP ALT Altium_WR-PHD (rev24a).IntLib \| 34.1 MB CDS Cadence_WR-PHD (rev25a).zip \| 65.8 MB EAG Eagle_WR-PHD (rev25a).lbr \| 5.2 MB KIC KiCad_WR-PHD (rev25a).zip \| 311.3 MB CAD files ZIP 3D 3D_61300621121 (rev1).pdf \| 34.1 KB IGS Download_IGES_61300621121 (rev1).iges \| 435.1 KB STP Download_STP_61300621121 (rev1).stp \| 103.5 KB	Active i\| Production is active. Expected lifetime: >10 years.	WR-PHD Pin Header - Dual	–	–	–	–	–	–	–	6	–	–	Straight	–	3	250	Bag	–	–	Pin Header	THT	–	2.54	Dual	–	–	–	–	–	–
61300811821	SPEC	–	7 files EDA models: Components ZIP ALT Altium_WR-PHD (rev24a).IntLib \| 34.1 MB CDS Cadence_WR-PHD (rev25a).zip \| 65.8 MB EAG Eagle_WR-PHD (rev25a).lbr \| 5.2 MB KIC KiCad_WR-PHD (rev25a).zip \| 311.3 MB CAD files ZIP 3D 61300811821_1 (rev1).pdf \| 64.2 KB IGS 61300811821 (rev1).iges \| 738.5 KB STP 61300811821 (rev1).stp \| 303.3 KB	Active i\| Production is active. Expected lifetime: >10 years.	WR-PHD Socket Header - Single	–	–	–	–	–	–	–	8	–	–	Straight	–	3	250	Tray	–	–	Socket Header	THT	–	2.54	Single	–	–	–	–	–	–
65100516121	SPEC	–	6 files EDA models: Components ZIP ALT Altium_WR-USB (rev25a).IntLib \| 12 MB CDS Cadence_WR-COM_USB (rev25c).zip \| 64.6 MB EAG Eagle_WR-USB (rev25c).lbr \| 473.1 KB CAD files ZIP 3D 3D_65100516121 (rev1).pdf \| 224.5 KB IGS Download_IGS_65100516121 (rev1).igs \| 3.2 MB STP Download_STP_65100516121 (rev1).stp \| 1.2 MB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WR-USB Mini/Micro Connectors	–	–	–	–	–	–	–	5	–	–	Horizontal	with Pads & Pegs	1	30	Tape and Reel & Mylar	Mini USB 2.0	Type B	Receptacle	SMT	–	–	–	–	–	–	–	–	–

Order Code	Datasheet	Simulation
150060BS75000	SPEC
150060RS75000	SPEC
61301011821	SPEC	–
61303621821	SPEC	–
694108106102	SPEC PCN pending Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. SPEC Datasheet valid to 18/12/2025 SPEC Datasheet valid from 19/12/2025 PCN PCN document	–
434121025816	SPEC	–
61300211121	SPEC	–
61300311121	SPEC	–
61300621121	SPEC	–
61300811821	SPEC	–
65100516121	SPEC	–

Samples

	Order Code	Datasheet	Simulation	Downloads	Status	Product series	λ_{Dom typ.} (nm)	Emitting Color	λ_{Peak typ.} (nm)	I_{V typ.} (mcd)	V_{F typ.} (V)	Chip Technology	2θ_{50% typ.} (°)	Pins (pcs)	Center pin Ø (Value) (mm)	Plug OD (mm)	Type	Variant	I_R (A)	Working Voltage (V (AC))	Packaging	Application	Interface Type	Gender	Mount	I_R (A)	Pitch (mm)	Rows	H (mm)	Operation Force (g)	Electrical Life (Cycles)	Actuator Color	Washable	Vaporphase process	Samples

IC manufacturers (104)

Onsemi NCP3170 | Demoboard NEBO52

Buck Regulator, Switching, PWM, 3.0 A