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reference designNCP3231 | Demoboard STR-NCP3231-EVK

Onsemi NCP3231 | Demoboard STR-NCP3231-EVK

STR-NCP3231-EVK: Strata Enabled NCP3231,18V Input, 30A, Voltage-Mode Synchronous Buck Converter

Overview

TopologyBuck Converter
Input voltage4.5-23 V
Switching frequency550-1100 kHz
Output 130 A

Description

The NCP3231 is a high current, high efficiency voltage-mode synchronous buck converter which operates from 4.5 V to 18 V input and generates output voltages down to 0.6 V at up to 25 A DC load or 30 A instantaneous load.

Features

  • Strata-enabled Configurability and Telemetry
  • Switching Frequency Option: 550 kHz, 1.1 MHz
  • External Programmable Soft−Start
  • Lossless Low−side FET Current Sensing
  • Output Over−voltage Protection and Under−voltage Protection
  • Selective Hiccup/Latch Off Operation for All Faults
  • Pre−bias Start−up
  • Power Good Output
  • Internal Over−temperature Protection
  • Adjustable Input UVLO

Typical applications

  • ASIC, FPGA, DSP and CPU Core and I/O Supplies
  • Server and Storage System, Telecom and Network Equipmen
  • Industry PC Equipment,

More information

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(mm)		TiλDom typ.
(nm)		Emitting ColorλPeak typ.
(nm)		IV typ.
(mcd)		VF typ.
(V)		Chip Technology2θ50% typ.
(°)		CTol. CVR
(V (DC))		SizeOperating TemperatureQDF
(%)		RISOCeramic TypeW
(mm)		Fl
(mm)		L
(µH)		IRP,40K
(A)		ISAT,10%
(A)		ISAT,30%
(A)		RDC max.
(mΩ)		MaterialQmin.LR
(µH)		fres
(MHz)		SW
(mm)		ApplicationInterface TypeMountWorking Voltage
(V (AC))		H
(mm)		Operation Force (Value)
(g)		Electrical Life
(Cycles)		Actuator ColorVaporphase processPins (Value)
(pcs)		RowsGenderTypeIR
(A)		Packaging Samples
885012204002SPEC
7 files

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 Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 0.6 – – – – – – – –680 pF ±10% 50 0201 -55 °C up to +125 °C – 310 GΩ X7R Class II 0.3 0.15 – – – – – – – – – – – – – – 0.3 – – – – – – – – – 7" Tape & Reel
885012005007SPEC
6 files

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 Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 10 V(DC) 1 – – – – – – – –10 pF ±5% 10 0402 -55 °C up to +125 °C 600 –10 GΩ NP0 Class I 0.5 0.25 – – – – – – 600 – – – – – – – 0.5 – – – – – – – – – 7" Tape & Reel
885012205008SPEC
8 files

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 Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 10 V(DC) 1 – – – – – – – –2.2 nF ±10% 10 0402 -55 °C up to +125 °C – 510 GΩ X7R Class II 0.5 0.25 – – – – – – – – – – – – – – 0.5 – – – – – – – – – 7" Tape & Reel
150060RS75000SPEC
25 files

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 Active i| Production is active. Expected lifetime: >10 years.WL-SMCW SMT Mono-color Chip LED Waterclear 1.6 – 625 Red 630 250 2 AlInGaP 140 – – – 0603 -40 °C up to +85 °C – – – – 0.8 – – – – – – – – – – – – – SMT – 0.7 – – – – – – – – – Tape and Reel
150060YS75000SPEC
25 files

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 Active i| Production is active. Expected lifetime: >10 years.WL-SMCW SMT Mono-color Chip LED Waterclear 1.6 – 590 Yellow 595 120 2 AlInGaP 140 – – – 0603 -40 °C up to +85 °C – – – – 0.8 – – – – – – – – – – – – – SMT – 0.7 – – – – – – – – – Tape and Reel
150060GS75000SPEC
25 files

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 Active i| Production is active. Expected lifetime: >10 years.WL-SMCW SMT Mono-color Chip LED Waterclear 1.6 – 525 Green 515 430 3.2 InGaN 140 – – – 0603 -40 °C up to +85 °C – – – – 0.8 – – – – – – – – – – – – – SMT – 0.7 – – – – – – – – – Tape and Reel
150060BS75000SPEC
25 files

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 Active i| Production is active. Expected lifetime: >10 years.WL-SMCW SMT Mono-color Chip LED Waterclear 1.6 – 470 Blue 465 145 3.2 InGaN 140 – – – 0603 -40 °C up to +85 °C – – – – 0.8 – – – – – – – – – – – – – SMT – 0.7 – – – – – – – – – Tape and Reel
61300211121SPEC
–6 files

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 Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.54 mm THT Pin Header 5.08 – – – – – – – – – – – – -40 °C up to +105 °C – –1000 MΩ – – – – – – – – – – – – – – – THT 250 – – – – – 2 Single Pin Header Straight 3 Bag
7443340030SPEC

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.

8 files

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 Active i| Production is active. Expected lifetime: >10 years.WE-HCC SMT High Current Cube Inductor 8.4 – – – – – – – – – – – 8070 -40 °C up to +125 °C – – – – 7.9 – 0.3 25.5 35.4 40.3 2.7 Ferrite – 0.3 272 – – – SMT – 7.2 – – – – 2 – – – 20.5 –
61300411121SPEC
–6 files

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 Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.54 mm THT Pin Header 10.16 – – – – – – – – – – – – -40 °C up to +105 °C – –1000 MΩ – – – – – – – – – – – – – – – THT 250 – – – – – 4 Single Pin Header Straight 3 Bag
971100365SPEC
–3 files

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 Active i| Production is active. Expected lifetime: >10 years.WA-SPAIE Plastic Spacer Stud, metric, internal/ external – – – – – – – – – – – – -30 °C up to +110 °C – – – – – – – – – – – Polyamide – – – – – – – – – – – – – – – – – – Bag
434153017835SPEC
–5 files

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 Active i| Production is active. Expected lifetime: >10 years.WS-TASV J-Bend SMT Tact Switch 3.5x2.9 mm – – – – – – – – – – – 12 – -40 °C up to +85 °C – –100 MΩ – – – – – – – – – – – – – – – – – 1.7 350 200000 Blue not specified – – – – 0.05 Tape and Reel
65100516121SPEC
–6 files

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 Active i| Production is active. Expected lifetime: >10 years.WR-COM Mini USB 2.0 Type B SMT Horizontal 5 Contacts – – – – – – – – – – – – – -40 °C up to +105 °C – –1000 MΩ – – – – – – – – – – – – – Mini USB Type B SMT 30 – – – – – 5 – Receptacle Horizontal 1 Tape and Reel & Mylar
709940300SPEC
–3 files

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 Active i| Production is active. Expected lifetime: >10 years.WA-SNTE Snap-In Stop Spacer for Printed Circuit Boards – M3 – – – – – – – – – – – -30 °C up to +85 °C – – – – – – – – – – – Nylon 66 – – – 5.5 – – – – 2.4 – – – – – – – – – Bag
Order Code Data­sheet Simu­lation
885012204002SPEC
885012005007SPEC
885012205008SPEC
150060RS75000SPEC
150060YS75000SPEC
150060GS75000SPEC
150060BS75000SPEC
61300211121SPEC
–
7443340030SPEC

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.

61300411121SPEC
–
971100365SPEC
–
434153017835SPEC
–
65100516121SPEC
–
709940300SPEC
–
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(mm)		TiλDom typ.
(nm)		Emitting ColorλPeak typ.
(nm)		IV typ.
(mcd)		VF typ.
(V)		Chip Technology2θ50% typ.
(°)		CTol. CVR
(V (DC))		SizeOperating TemperatureQDF
(%)		RISOCeramic TypeW
(mm)		Fl
(mm)		L
(µH)		IRP,40K
(A)		ISAT,10%
(A)		ISAT,30%
(A)		RDC max.
(mΩ)		MaterialQmin.LR
(µH)		fres
(MHz)		SW
(mm)		ApplicationInterface TypeMountWorking Voltage
(V (AC))		H
(mm)		Operation Force (Value)
(g)		Electrical Life
(Cycles)		Actuator ColorVaporphase processPins (Value)
(pcs)		RowsGenderTypeIR
(A)		Packaging Samples