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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
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
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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
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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
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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
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