Onsemi NCP81231 | Demoboard STR-USBC-4PORT-200W-EVK | Würth Elektronik Reference Design Search

reference designNCP81231 | Demoboard STR-USBC-4PORT-200W-EVK

Overview

Topology	Buck Converter
Switching frequency	150-1200 kHz
IC revision	3

Description

The NCP81231 is a synchronous buck that is optimized for converting battery voltage or adaptor voltage into power supply rails required in notebook, tablet, and desktop systems, as well as many other consumer devices using USB PD standard and C−Type cables. The NCP81231 is fully compliant to the USB Power Delivery Specification when used in conjunction with a USB PD or C−Type Interface Controller. NCP81231 is designed for applications requiring dynamically controlled slew rate limited output voltage.

Features

Wide Input Voltage Range: from 4.5 V to 28 V
Dynamically Programmed Frequency from 150 kHz to 1.2 MHz
I2C Interface
Real Time Power Good Indication
Controlled Slew Rate Voltage Transitioning
Feedback Pin with Internally Programmed Reference
High Resolution DAC Voltage
Two Independent Current Sensing Inputs
Support Inductor DCR Sensing
Over Temperature Protection
Adaptive Non−Overlap Gate Drivers
Filter Capacitor Switch Control
100% Duty Cycle Operation
Latched Over−Voltage and Over−Current Protection
Dead Battery Power Support
5 x 5 mm QFN32 Package

Typical applications

Notebooks, Tablets, Desktops, Gaming, Monitors, TVs, and Set Top Boxes, Consumer Electronics,
Power Banks, Car Chargers, Docking Stations

More information

Products

Order Code	Datasheet	Simulation	Downloads	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.} (°)	I_RP,40K (A)	I_SAT,30% (A)	R_{DC typ.} (mΩ)	f_res (MHz)	V (V)	SW (mm)	T_i	T_o	Application	Interface Type	PCB Thickness (mm)	I_R (A)	Working Voltage (V (AC))	H (mm)	Operation Force (Value) (g)	Electrical Life (Cycles)	Actuator Color	Vaporphase process	I_R (A)	L (mH)	R_{DC max.} (mΩ)	V_R (V (AC))	V_T (V (AC))	Material	L (mm)	W (mm)	Mount	Pins	Rows	G (mm)	Gender	Type	Packaging
155124BS73200	SPEC		6 files EDA models: Components ZIP ALT WL-SMSW (rev22b).IntLib \| 195.5 KB CDS Cadence_WL-SMSW (rev22a).zip \| 1000.8 KB EAG Eagle_WL-SMSW (rev22b).lbr \| 46.4 KB CAD files ZIP IGS Download_IGS_WL-SMSW-1204 (rev1).igs \| 704.3 KB STP Download_STP_WL-SMSW-1204 (rev1).stp \| 164.3 KB Electric models ZIP PSP PSpice_WL-SMSW (rev22a).zip \| 7 KB Download all 6 files as zip archive ZIP	WL-SMSW SMT Mono-color Side View Waterclear	470	Blue	468	150	3.4	InGaN	120	–	–	–	–	–	–	–	–	–	–	–	–	–	1	–	–	–	–	–	–	–	–	–	–	3.2	1.5	SMT	–	–	–	–	–	Tape and Reel
155124GS73200	SPEC		6 files EDA models: Components ZIP ALT WL-SMSW (rev22b).IntLib \| 195.5 KB CDS Cadence_WL-SMSW (rev22a).zip \| 1000.8 KB EAG Eagle_WL-SMSW (rev22b).lbr \| 46.4 KB CAD files ZIP IGS Download_IGS_WL-SMSW-1204 (rev1).igs \| 704.3 KB STP Download_STP_WL-SMSW-1204 (rev1).stp \| 164.3 KB Electric models ZIP PSP PSpice_WL-SMSW (rev22a).zip \| 7 KB Download all 6 files as zip archive ZIP	WL-SMSW SMT Mono-color Side View Waterclear	525	Green	520	600	3.3	InGaN	120	–	–	–	–	–	–	–	–	–	–	–	–	–	1	–	–	–	–	–	–	–	–	–	–	3.2	1.5	SMT	–	–	–	–	–	Tape and Reel
150060YS75000	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_150060YS75000_5M (rev1p0).zip \| 121.1 MB SRC Lucaray-maker_src_150060YS75000_5M (rev1p0).zip \| 121.1 MB ASA ASAP-and-APEX_dis_150060YS75000_5M (rev1p0).zip \| 121.1 MB COD CodeV_ray_150060YS75000_5M (rev1p0).zip \| 121.1 MB FRE Fred_dat_150060YS75000_5M (rev1p0).zip \| 121.1 MB FRE Fred_txt_150060YS75000_5M (rev1p0).zip \| 189.9 MB LIG LightTools_ray_150060YS75000_5M (rev1p0).zip \| 121.1 MB LIG LightTools_txt_150060YS75000_5M (rev1p0).zip \| 189.9 MB LUC LucidShape_ray_150060YS75000_5M (rev1p0).zip \| 121.1 MB LUC LucidShape_txt_150060YS75000_5M (rev1p0).zip \| 189.8 MB OPT optalix_DIS_150060YS75000_5M (rev1p0).zip \| 121.1 MB OPT OpTaliX_txt_150060YS75000_5M (rev1p0).zip \| 189.9 MB OPT OptiCAD_dat_150060YS75000_5M (rev1p0).zip \| 121.1 MB OPT OptiCAD_txt_150060YS75000_5M (rev1p0).zip \| 189.8 MB SIM Simulux_ray_150060YS75000_5M (rev1p0).zip \| 121.1 MB SPE Speos_ray_150060YS75000_5M (rev1p0).zip \| 125.7 MB TRA TracePro_txt_150060YS75000_5M (rev1p0).zip \| 189.9 MB ZEM Zemax_dat_150060YS75000_5M (rev1p0).zip \| 189.8 MB ZEM ZemaxBin_dat_150060YS75000_5M (rev1p0).zip \| 121.1 MB	WL-SMCW SMT Mono-color Chip LED Waterclear	590	Yellow	595	120	2	AlInGaP	140	–	–	–	–	–	–	–	–	–	–	–	–	–	0.7	–	–	–	–	–	–	–	–	–	–	1.6	0.8	SMT	–	–	–	–	–	Tape and Reel
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	–	–	–	–	–	–	–	–	–	–	–	–	–	0.7	–	–	–	–	–	–	–	–	–	–	1.6	0.8	SMT	–	–	–	–	–	Tape and Reel
744823422	SPEC		10 files EDA models: Components ZIP ALT WE-CMB (rev22b).IntLib \| 8.2 MB ZUK Cadstar_WE-CMB (rev21b).zip \| 20.8 KB CDS CADENCE_WE-CMB (rev21b).zip \| 127.8 MB EAG Eagle_WE-CMB (rev21d).lbr \| 70.6 KB CAD files ZIP 3D 3D_IndCMB_M_744823422 (rev1).pdf \| 98.9 MB IGS IGS_744823422 (rev1).igs \| 7.5 MB STP STP_744823422 (rev1).stp \| 2.7 MB Electric models ZIP S S-Parameter_744823422 (rev20a).s4p \| 308.5 KB PSP PSpice_WE-CMB (rev22a).zip \| 14.2 KB	WE-CMB Common Mode Power Line Choke	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	4	–	25.5	–	–	–	–	4	2.2	30	250	1500	MnZn	23.5	13.8	THT	4	–	3	–	–	–
61301621021	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 61301621021_1 (rev1).pdf \| 67.9 KB IGS 61301621021 (rev1).igs \| 1.1 MB STP 61301621021 (rev1).stp \| 440.3 KB	WR-PHD 2.54 mm THT Angled Dual Pin Header	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	250	–	–	–	–	–	3	–	–	–	–	–	20.32	–	THT	16	Dual	–	Pin Header	Angled	Bag
971100365	SPEC	–	3 files CAD files ZIP 3D 3D_971100365 (rev1).pdf \| 58.7 KB IGS Download_IGS_971100365 (rev1).igs \| 204.2 KB STP Download_STEP_971100365 (rev1).stp \| 48.5 KB Download all 3 files as zip archive ZIP	WA-SPAIE Plastic Spacer Stud, metric, internal/ external	–	–	–	–	–	–	–	–	–	–	–	–	6	M3	M3	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	Polyamide	10	–	–	–	–	–	–	–	Bag
434153017835	SPEC	–	5 files EDA models: Components ZIP ALT Altium_WS-TASV (rev24a).IntLib \| 2 MB CDS Cadence_WS-TASV (rev23a).zip \| 12.5 MB EAG Eagle_WS-TASV (rev23a).lbr \| 408.8 KB CAD files ZIP IGS Download_IGS_434153017835 (rev1).igs \| 1.6 MB STP Download_STP_434153017835 (rev1).stp \| 641.5 KB Download all 5 files as zip archive ZIP	WS-TASV J-Bend SMT Tact Switch 3.5x2.9 mm	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	1.7	350	200000	Blue	not specified	0.05	–	–	12	–	–	–	–	–	–	–	–	–	–	Tape and Reel
970300365	SPEC	–	3 files CAD files ZIP 3D 3D_970300356 (rev1).pdf \| 35.9 KB IGS Download_IGS_970300365 (rev1).igs \| 194.5 KB STP Download_STEP_970300365 (rev1).stp \| 35.7 KB Download all 3 files as zip archive ZIP	WA-SPAII Plastic Spacer Stud, metric, internal/ internal	–	–	–	–	–	–	–	–	–	–	–	–	6	M3	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	Polyamide	30	–	–	–	–	–	–	–	Bag
632723300011	SPEC	–	6 files EDA models: Components ZIP ALT Altium_WR-USB (rev24a).IntLib \| 12.1 MB CDS Cadence_WR-COM_USB (rev24b).zip \| 61.5 MB EAG Eagle_WR-USB (rev24a).lbr \| 448.2 KB CAD files ZIP 3D Download_3D_632723300011 (rev1).pdf \| 781.4 KB IGS Download_IGES_632723300011 (rev1).iges \| 11.4 MB STP Download_STP_632723300011 (rev1).stp \| 3.1 MB Download all 6 files as zip archive ZIP	WR-COM USB 3.1 Type C Receptacle Horizontal THR / SMT	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	USB 3.1	Type C	1.6	–	20	–	–	–	–	–	5	–	–	–	–	–	–	–	THR	24	–	1.9	Receptacle	Horizontal	Tape and Reel
61300211121	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 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	WR-PHD 2.54 mm THT Pin Header	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	250	–	–	–	–	–	3	–	–	–	–	–	5.08	–	THT	2	Single	–	Pin Header	Straight	Bag
65100516121	SPEC	–	6 files EDA models: Components ZIP ALT Altium_WR-USB (rev24a).IntLib \| 12.1 MB CDS Cadence_WR-COM_USB (rev24b).zip \| 61.5 MB EAG Eagle_WR-USB (rev24a).lbr \| 448.2 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	WR-COM Mini USB 2.0 Type B SMT Horizontal 5 Contacts	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	Mini USB	Type B	–	–	30	–	–	–	–	–	1	–	–	–	–	–	–	–	SMT	5	–	–	Receptacle	Horizontal	Tape and Reel & Mylar
74438357047	SPEC		9 files EDA models: Components ZIP ALT WE-MAPI (rev24a).IntLib \| 588 KB ZUK Cadstar_WE-MAPI (rev20a).zip \| 15.9 KB CDS Cadence_WE-MAPI (rev24a).zip \| 2.4 MB EAG Eagle_WE-MAPI (rev24a).lbr \| 170.6 KB CAD files ZIP 3D 3D_WE-IndMAPI_SSMC-4030_3D (rev1).pdf \| 69.8 KB IGS Download_WE-MAPI-4030_igs (rev1).igs \| 585.1 KB STP Download_WE-MAPI-4030_stp (rev1).stp \| 198.9 KB Electric models ZIP PSP PSpice_WE-MAPI (rev24a).zip \| 31.1 KB SCS Spectre_WE-MAPI (rev23a).mod \| 31.1 KB Download all 9 files as zip archive ZIP	WE-MAPI SMT Power Inductor	–	–	–	–	–	–	–	5.1	8.2	39.9	24	80	–	–	–	–	–	–	–	–	3	–	–	–	–	3.9	0.0047	44	–	–	–	4	4	SMT	2	–	–	–	–	–
613016243121	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 Downloads_3D_613016243121 (rev1).pdf \| 109.7 KB IGS Downloads_IGES_613016243121 (rev1).iges \| 1.8 MB STP Downloads_STEP_613016243121 (rev1).stp \| 448.3 KB	WR-PHD 2.54 mm Angled Dual Socket Header	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	250	–	–	–	–	–	3	–	–	–	–	–	20.82	–	THT	16	Dual	–	Socket Header	Angled	Tray
613020243121	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 Downloads_3D_613020243121 (rev1).pdf \| 128.1 KB IGS Downloads_IGES_613020243121 (rev1).iges \| 2.1 MB STP Downloads_STEP_613020243121 (rev1).stp \| 530.8 KB	WR-PHD 2.54 mm Angled Dual Socket Header	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	250	–	–	–	–	–	3	–	–	–	–	–	25.9	–	THT	20	Dual	–	Socket Header	Angled	Tray

Order Code	Datasheet	Simulation
155124BS73200	SPEC
155124GS73200	SPEC
150060YS75000	SPEC
150060RS75000	SPEC
744823422	SPEC
61301621021	SPEC	–
971100365	SPEC	–
434153017835	SPEC	–
970300365	SPEC	–
632723300011	SPEC	–
61300211121	SPEC	–
65100516121	SPEC	–
74438357047	SPEC
613016243121	SPEC	–
613020243121	SPEC	–

Samples

	Order Code	Datasheet	Simulation	Downloads	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.} (°)	I_RP,40K (A)	I_SAT,30% (A)	R_{DC typ.} (mΩ)	f_res (MHz)	V (V)	SW (mm)	T_i	T_o	Application	Interface Type	PCB Thickness (mm)	I_R (A)	Working Voltage (V (AC))	H (mm)	Operation Force (Value) (g)	Electrical Life (Cycles)	Actuator Color	Vaporphase process	I_R (A)	L (mH)	R_{DC max.} (mΩ)	V_R (V (AC))	V_T (V (AC))	Material	L (mm)	W (mm)	Mount	Pins	Rows	G (mm)	Gender	Type	Packaging	Samples

IC manufacturers (96)

Onsemi NCP81231 | Demoboard STR-USBC-4PORT-200W-EVK

NCP81231: Buck Controller, USB Power Delivery and Type-C Applications