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reference designNCP3235 | Demoboard ONSEC-18-017

Onsemi NCP3235 | Demoboard ONSEC-18-017

4.5 V to 23 V, DC/DC Converter with Integrated MOSFETs

Overview

TopologyBuck Converter
Input voltage4-21 V
Output 10.6 V / 15 A
IC revision1.0

Description

The NCP3235 is a 15 A DC/DC converter with internal MOSFETs and offers flexibility in design. The device can deliver an adjustable output voltage as low as 0.6V to over 80% of the input voltage. Features include adjustable current limit, output voltage, and soft-start timing. Pin selectable features enable switching frequencies of 550 kHz or 1 MHz, selecting DCM/CCM operating modes, and the ability latch off or hiccup mode during over current. The part can be configure to operate in ultra-sonic mode to stay out of the audio band. The part is offered in a thermally enhanced 6mm by 6mm TQFN package.

Features

  • Accurate 0.6 V reference
  • DCM/CCM selectable options
  • 550kHz/1.1MHz switching frequency
  • Ultra-sonic mode
  • Thermally enhanced QFN package
  • Wide operating range 4.5 V to 21 V
  • Adjustable soft start

Typical applications

  • Computing/Servers
  • Datacom/Networking
  • FGPA, ASIC, DSP power / 12 V Point of load

More information

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(mm)		ToTiλDom 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
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
885012205060SPEC
8 files

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 Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 1 – – – – – – – – –680 pF ±10% 50 0402 -55 °C up to +125 °C – 2.510 GΩ X7R Class II 0.5 0.25 – – – – – – – – – – – – – – 0.5 – – – – – – – – – 7" Tape & Reel
885012205063SPEC
8 files

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 Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 1 – – – – – – – – –2.2 nF ±10% 50 0402 -55 °C up to +125 °C – 2.510 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 –
971100365SPEC
–3 files

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 Active i| Production is active. Expected lifetime: >10 years.WA-SPAIE Plastic Spacer Stud, metric, internal/ external 10 M3 M3 – – – – – – – – – – – -30 °C up to +110 °C – – – – – – – – – – – Polyamide – – – 6 – – – – – – – – – – – – – – Bag
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
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
885012005007SPEC
885012205060SPEC
885012205063SPEC
150060RS75000SPEC
150060YS75000SPEC
150060GS75000SPEC
150060BS75000SPEC
61300211121SPEC
–
7443340030SPEC
971100365SPEC
–
61300411121SPEC
–
434153017835SPEC
–
65100516121SPEC
–
709940300SPEC
–
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(mm)		ToTiλDom 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