Microchip MCP16331 | Demoboard DS20005308D | Würth Elektronik Reference Design Search

Overview

Topology	Buck Converter
Input voltage	4.4-50 V
Output 1	24 V

Description

The MCP16331 device is a highly integrated, high-efficiency, fixed-frequency, step-down DC-DC converter in a popular 6-pin SOT-23 or 8-pin 2 mm x 3 mm TDFN package, that operates from input voltage sources up to 50V. Integrated features include a high-side switch, fixed frequency Peak Current-Mode control, internal compensation, peak current limit and overtemperature protection. Only a few external components are necessary to develop a complete step-down DC-DC converter power supply.

Features

Up to 96% Efficiency
Input Voltage Range: 4.4V to 50V
Output Voltage Range: 2.0V to 24V
2% Output Voltage Accuracy
Passes Automotive AEC-Q100 Reliability Testing
Integrated N-Channel Buck Switch: 600 m
Minimum 500 mA Output Current Over All Input Voltage Ranges (see Figure 2-9 for Maximum Output Current vs. VIN)
Up to 1.2A output current at 3.3V and 5V VOUT, VIN > 12V, SOT-23 package at +25°C ambient temperature
Up to 0.8A output current at 12V VOUT, VIN > 18V, SOT-23 package at +25°C ambient temperature
500 kHz Fixed Frequency
Adjustable Output Voltage
Low Device Shutdown Current
Peak Current Mode Control
Internal Soft Start
Internal Compensation
Internal Pull-up on the Enable pin
Stable with Ceramic Capacitors
Cycle-by-Cycle Peak Current Limit
Undervoltage Lockout (UVLO): 4.1V to Start; 3.6V to Stop
Overtemperature Protection
Available Packages: 6-Lead SOT-23, 8-Lead 2 mm x 3 mm TDFN

Typical applications

Medical and Health Care
PIC® Microcontroller and dsPIC® Digital Signal Controller Bias Supply, Distributed Power Supplies, AC-DC Digital Control Power Source
Automotive
48V, 24V and 12V Industrial Input DC-DC Conversion

More information

Products

Order Code	Datasheet	Simulation	Downloads	Status	Product series	L(µH)	I_RP,40K(A)	I_SAT,30%(A)	R_{DC typ.}(mΩ)	f_res(MHz)	V_OP(V)	Mount	I_R(A)	I_SAT(A)	R_{DC max.}(mΩ)	Version	Size	I_SAT,10%(A)
744025150	WE-TPC SMT Tiny Power Inductor, 15 µH, –	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-TPC (rev23a).IntLib \| 1.5 MB CDS Cadence_WE-TPC (rev23a).zip \| 10.8 MB EAG Eagle_WE-TPC (rev23b).lbr \| 219.3 KB KIC KiCad_WE-TPC (rev25b).zip \| 3.9 MB ZUK Download_CadStar_WE-TPC (rev19a).zip \| 47.5 KB CAD files ZIP IGS WE-TPC_2828 (rev1).igs \| 891.5 KB STP WE-TPC_2828 (rev1).stp \| 355 KB Electric models ZIP PSP PSpice_WE-TPC (rev23a).zip \| 39.9 KB SCS Spectre_WE-TPC (rev24a).mod \| 52.7 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-TPC SMT Tiny Power Inductor	Inductance15 µH	–	–	DC Resistance356 mΩ	Self Resonant Frequency32 MHz	–	MountSMT	Rated Current0.72 A	Saturation Current0.9 A	DC Resistance400 mΩ	VersionSMT	Size2828	–
744042150	WE-TPC SMT Tiny Power Inductor, 15 µH, –	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-TPC (rev23a).IntLib \| 1.5 MB CDS Cadence_WE-TPC (rev23a).zip \| 10.8 MB EAG Eagle_WE-TPC (rev23b).lbr \| 219.3 KB KIC KiCad_WE-TPC (rev25b).zip \| 3.9 MB ZUK Download_CadStar_WE-TPC (rev19a).zip \| 47.5 KB CAD files ZIP IGS WE-TPC_4818 (rev1).igs \| 1.3 MB STP WE-TPC_4818 (rev1).stp \| 458 KB Electric models ZIP PSP PSpice_WE-TPC (rev23a).zip \| 39.9 KB SCS Spectre_WE-TPC (rev24a).mod \| 52.7 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-TPC SMT Tiny Power Inductor	Inductance15 µH	–	–	DC Resistance190 mΩ	Self Resonant Frequency35 MHz	–	MountSMT	Rated Current1.03 A	Saturation Current0.75 A	DC Resistance220 mΩ	VersionSMT	Size4818	–
74408942150	WE-SPC SMT Power Inductor, 15 µH, –	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-SPC (rev22d).IntLib \| 241.5 KB CDS Cadence_WE-SPC (rev23a).zip \| 1.2 MB EAG Eagle_WE-SPC (rev23a).lbr \| 44.8 KB KIC KiCad_WE-SPC (rev25b).zip \| 271.5 KB ZUK Download_CadStar_WE-SPC (rev19a).zip \| 43.6 KB CAD files ZIP IGS WE-SPC_4828SPC (rev1).igs \| 1.4 MB STP WE-SPC_4828SPC (rev1).stp \| 489.1 KB Electric models ZIP PSP PSpice_WE-SPC (rev22a).zip \| 10.5 KB SCS Spectre_WE-SPC (rev24a).mod \| 12.4 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-SPC SMT Power Inductor	Inductance15 µH	–	–	DC Resistance207 mΩ	Self Resonant Frequency19 MHz	–	MountSMT	Rated Current1.1 A	Saturation Current1.6 A	DC Resistance245 mΩ	VersionSMT	Size4828	–
7447779115	WE-PD SMT Power Inductor, 15 µH, 2.8 A	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-PD (rev25b).IntLib \| 2.3 MB CDS Cadence_WE-PD (rev25b).zip \| 13.4 MB EAG Eagle_WE-PD (rev25a).lbr \| 333.8 KB KIC KiCad_WE-PD (rev25b).zip \| 4.2 MB ZUK CadStar_WE-PD (rev20a).zip \| 36.5 KB CAD files ZIP IGS Download_WE-PD_7345R_IGS (rev1).igs \| 2.5 MB STP Download_WE-PD_7345R_STP (rev1).stp \| 752.5 KB Electric models ZIP PSP PSpice_WE-PD (rev25a).zip \| 59.6 KB SCS Spectre_WE-PD (rev25a).mod \| 78.4 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-PD SMT Power Inductor	Inductance15 µH	Performance Rated Current2.8 A	Saturation Current @ 30%2.7 A	DC Resistance70 mΩ	Self Resonant Frequency19.5 MHz	Operating Voltage120 V	MountSMT	Rated Current1.6 A	Saturation Current2.2 A	DC Resistance81 mΩ	VersionRobust	Size7345	Saturation Current @ 10%2.2 A
74437324150	WE-LHMI SMT Power Inductor, 15 µH, 1.6 A	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-LHMI (rev25c).IntLib \| 1.8 MB CDS Cadence_WE-LHMI (rev25a).zip \| 4.5 MB EAG Eagle_WE-LHMI (rev24c).lbr \| 193.1 KB KIC KiCad_WE-LHMI (rev25b).zip \| 991.6 KB ZUK Download_CadStar_WE-LHMI (rev19a).zip \| 16.7 KB CAD files ZIP IGS WE-LHMI_4020 (rev1).igs \| 943.7 KB STP WE-LHMI_4020 (rev1).stp \| 377.6 KB Electric models ZIP PSP PSpice_WE-LHMI (rev24b).zip \| 33.5 KB SCS Spectre_WE-LHMI (rev24a).mod \| 43.1 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-LHMI SMT Power Inductor	Inductance15 µH	Performance Rated Current1.6 A	Saturation Current @ 30%2.75 A	DC Resistance325 mΩ	Self Resonant Frequency17 MHz	Operating Voltage120 V	MountSMT	–	–	DC Resistance374 mΩ	–	Size4020	Saturation Current @ 10%1.35 A
74438356150	WE-MAPI SMT Power Inductor, 15 µH, 2.1 A	Simulation	Downloads10 files EDA models: Components ZIP ALT WE-MAPI (rev25a).IntLib \| 599.5 KB CDS Cadence_WE-MAPI (rev25a).zip \| 2.3 MB EAG Eagle_WE-MAPI (rev25a).lbr \| 200.3 KB KIC KiCad_WE-MAPI (rev25b).zip \| 743.4 KB ZUK Cadstar_WE-MAPI (rev20a).zip \| 15.9 KB CAD files ZIP 3D 3D_WE-IndMAPI_SSMC-4020_3D (rev1).pdf \| 93.9 KB IGS Download_IGS_WE-MAPI_4020 (rev1).igs \| 337.9 KB STP Download_STP_WE-MAPI_4020 (rev1).stp \| 325.7 KB Electric models ZIP PSP PSpice_WE-MAPI (rev24a).zip \| 31.1 KB SCS Spectre_WE-MAPI (rev24a).mod \| 41 KB Download all 10 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-MAPI SMT Power Inductor	Inductance15 µH	Performance Rated Current2.1 A	Saturation Current @ 30%2.85 A	DC Resistance200 mΩ	Self Resonant Frequency14 MHz	Operating Voltage80 V	MountSMT	Rated Current1.9 A	Saturation Current2.1 A	DC Resistance230 mΩ	–	Size4020	Saturation Current @ 10%1.35 A
744025220	WE-TPC SMT Tiny Power Inductor, 22 µH, –	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-TPC (rev23a).IntLib \| 1.5 MB CDS Cadence_WE-TPC (rev23a).zip \| 10.8 MB EAG Eagle_WE-TPC (rev23b).lbr \| 219.3 KB KIC KiCad_WE-TPC (rev25b).zip \| 3.9 MB ZUK Download_CadStar_WE-TPC (rev19a).zip \| 47.5 KB CAD files ZIP IGS WE-TPC_2828 (rev1).igs \| 891.5 KB STP WE-TPC_2828 (rev1).stp \| 355 KB Electric models ZIP PSP PSpice_WE-TPC (rev23a).zip \| 39.9 KB SCS Spectre_WE-TPC (rev24a).mod \| 52.7 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-TPC SMT Tiny Power Inductor	Inductance22 µH	–	–	DC Resistance525 mΩ	Self Resonant Frequency23 MHz	–	MountSMT	Rated Current0.5 A	Saturation Current0.75 A	DC Resistance575 mΩ	VersionSMT	Size2828	–
744042220	WE-TPC SMT Tiny Power Inductor, 22 µH, –	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-TPC (rev23a).IntLib \| 1.5 MB CDS Cadence_WE-TPC (rev23a).zip \| 10.8 MB EAG Eagle_WE-TPC (rev23b).lbr \| 219.3 KB KIC KiCad_WE-TPC (rev25b).zip \| 3.9 MB ZUK Download_CadStar_WE-TPC (rev19a).zip \| 47.5 KB CAD files ZIP IGS WE-TPC_4818 (rev1).igs \| 1.3 MB STP WE-TPC_4818 (rev1).stp \| 458 KB Electric models ZIP PSP PSpice_WE-TPC (rev23a).zip \| 39.9 KB SCS Spectre_WE-TPC (rev24a).mod \| 52.7 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-TPC SMT Tiny Power Inductor	Inductance22 µH	–	–	DC Resistance280 mΩ	Self Resonant Frequency26 MHz	–	MountSMT	Rated Current0.88 A	Saturation Current0.6 A	DC Resistance300 mΩ	VersionSMT	Size4818	–
74408942220	WE-SPC SMT Power Inductor, 22 µH, –	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-SPC (rev22d).IntLib \| 241.5 KB CDS Cadence_WE-SPC (rev23a).zip \| 1.2 MB EAG Eagle_WE-SPC (rev23a).lbr \| 44.8 KB KIC KiCad_WE-SPC (rev25b).zip \| 271.5 KB ZUK Download_CadStar_WE-SPC (rev19a).zip \| 43.6 KB CAD files ZIP IGS WE-SPC_4828SPC (rev1).igs \| 1.4 MB STP WE-SPC_4828SPC (rev1).stp \| 489.1 KB Electric models ZIP PSP PSpice_WE-SPC (rev22a).zip \| 10.5 KB SCS Spectre_WE-SPC (rev24a).mod \| 12.4 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-SPC SMT Power Inductor	Inductance22 µH	–	–	DC Resistance300 mΩ	Self Resonant Frequency14 MHz	–	MountSMT	Rated Current0.85 A	Saturation Current1.3 A	DC Resistance354 mΩ	VersionSMT	Size4828	–
7447779122	WE-PD SMT Power Inductor, 22 µH, 2.45 A	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-PD (rev25b).IntLib \| 2.3 MB CDS Cadence_WE-PD (rev25b).zip \| 13.4 MB EAG Eagle_WE-PD (rev25a).lbr \| 333.8 KB KIC KiCad_WE-PD (rev25b).zip \| 4.2 MB ZUK CadStar_WE-PD (rev20a).zip \| 36.5 KB CAD files ZIP IGS Download_WE-PD_7345R_IGS (rev1).igs \| 2.5 MB STP Download_WE-PD_7345R_STP (rev1).stp \| 752.5 KB Electric models ZIP PSP PSpice_WE-PD (rev25a).zip \| 59.6 KB SCS Spectre_WE-PD (rev25a).mod \| 78.4 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-PD SMT Power Inductor	Inductance22 µH	Performance Rated Current2.45 A	Saturation Current @ 30%2.1 A	DC Resistance90 mΩ	Self Resonant Frequency17 MHz	Operating Voltage120 V	MountSMT	Rated Current1.41 A	–	DC Resistance110 mΩ	VersionRobust	Size7345	Saturation Current @ 10%1.7 A
74437324220	WE-LHMI SMT Power Inductor, 22 µH, 1.3 A	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-LHMI (rev25c).IntLib \| 1.8 MB CDS Cadence_WE-LHMI (rev25a).zip \| 4.5 MB EAG Eagle_WE-LHMI (rev24c).lbr \| 193.1 KB KIC KiCad_WE-LHMI (rev25b).zip \| 991.6 KB ZUK Download_CadStar_WE-LHMI (rev19a).zip \| 16.7 KB CAD files ZIP IGS WE-LHMI_4020 (rev1).igs \| 943.7 KB STP WE-LHMI_4020 (rev1).stp \| 377.6 KB Electric models ZIP PSP PSpice_WE-LHMI (rev24b).zip \| 33.5 KB SCS Spectre_WE-LHMI (rev24a).mod \| 43.1 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-LHMI SMT Power Inductor	Inductance22 µH	Performance Rated Current1.3 A	Saturation Current @ 30%2.35 A	DC Resistance470 mΩ	Self Resonant Frequency14 MHz	Operating Voltage120 V	MountSMT	–	–	DC Resistance500 mΩ	–	Size4020	Saturation Current @ 10%1.45 A
74438356220	WE-MAPI SMT Power Inductor, 22 µH, 1.85 A	Simulation	Downloads10 files EDA models: Components ZIP ALT WE-MAPI (rev25a).IntLib \| 599.5 KB CDS Cadence_WE-MAPI (rev25a).zip \| 2.3 MB EAG Eagle_WE-MAPI (rev25a).lbr \| 200.3 KB KIC KiCad_WE-MAPI (rev25b).zip \| 743.4 KB ZUK Cadstar_WE-MAPI (rev20a).zip \| 15.9 KB CAD files ZIP 3D 3D_WE-IndMAPI_SSMC-4020_3D (rev1).pdf \| 93.9 KB IGS Download_IGS_WE-MAPI_4020 (rev1).igs \| 337.9 KB STP Download_STP_WE-MAPI_4020 (rev1).stp \| 325.7 KB Electric models ZIP PSP PSpice_WE-MAPI (rev24a).zip \| 31.1 KB SCS Spectre_WE-MAPI (rev24a).mod \| 41 KB Download all 10 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-MAPI SMT Power Inductor	Inductance22 µH	Performance Rated Current1.85 A	Saturation Current @ 30%2.45 A	DC Resistance250 mΩ	Self Resonant Frequency11 MHz	Operating Voltage80 V	MountSMT	Rated Current1.7 A	Saturation Current1.85 A	DC Resistance280 mΩ	–	Size4020	Saturation Current @ 10%1.1 A

IC manufacturers (103)

Microchip MCP16331 | Demoboard DS20005308D

High-Voltage Input Integrated Switch Step-Down Regulator