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reference designNCP3170 | Demoboard NEBO52

Onsemi NCP3170 | Demoboard NEBO52

Buck Regulator, Switching, PWM, 3.0 A

Overview

TopologyBuck Converter
Input voltage4.5-18 V
Switching frequency1000 kHz
Output 15 V / 3 A
IC revision2

Description

The NCP3170 is a flexible synchronous PWM Switching Buck Regulator. The NCP3170 operates from 4.5 V to 18 V, producing up to 3 A and is capable of producing output voltages as low as 0.8 V. The NCP3170 also incorporates current mode control. To reduce the number of external components, a number of features are internally set including soft start, power good detection, and switching frequency. The NCP3170 is currently available in an SOIC-8 package.

Features

  • 4.5 V to 18 V Operating Input Voltage Range
  • 90mΩ High-Side, 24mΩ Low-Side MOSFET
  • Output Voltage Adjustable to 0.8 V
  • 3 A Continuous Output Current
  • Fixed 500 kHz and 1 MHz PWM Operation
  • 1.5% Initial Output Accuracy
  • Internal 4 ms SoftStart
  • ShortCircuit Protection
  • Thermal Shutdown
  • Light Load Efficiency
  • Dedicated PowerGood and ENABLE pin

Typical applications

  • Point of Load (POL) DC/DC Regulator
  • Set-Top-Box (STB)

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
λDom typ.(nm)
Emitting Color
λPeak typ.(nm)
IV typ.(mcd)
VF typ.(V)
Chip Technology
2θ50% typ.(°)
Pins
Center pin Ø(mm)
Plug OD(mm)
Type
IR(A)
Working Voltage(V (AC))
Packaging
Interface Type
Variant
Gender
Mount
L(mm)
Operating Temperature
H(mm)
Operation Force(g)
Electrical Life(Cycles)
Actuator Color
Washable
Vaporphase process
SamplesAvailability & Sample
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150060BS75000
SPECWL-SMCW SMT Mono-color Chip LED Waterclear, 470 nm, Blue
Simu­lation
Availability
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Downloads28 files

RAY files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear
Dominant Wavelength [typ.]470 nm
Emitting ColorBlue 
Peak Wavelength [typ.]465 nm
Luminous Intensity [typ.]145 mcd
Forward Voltage [typ.]3.2 V
Chip TechnologyInGaN 
Viewing Angle Phi 0° [typ.]140 °
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PackagingTape and Reel 
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MountSMT 
Length1.6 mm
Operating Temperature -40 °C up to +85 °C
Height0.7 mm
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150060RS75000
SPECWL-SMCW SMT Mono-color Chip LED Waterclear, 625 nm, Red
Simu­lation
Availability
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Downloads27 files

RAY files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear
Dominant Wavelength [typ.]625 nm
Emitting ColorRed 
Peak Wavelength [typ.]630 nm
Luminous Intensity [typ.]250 mcd
Forward Voltage [typ.]2 V
Chip TechnologyAlInGaP 
Viewing Angle Phi 0° [typ.]140 °
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PackagingTape and Reel 
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MountSMT 
Length1.6 mm
Operating Temperature -40 °C up to +85 °C
Height0.7 mm
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61301011821
SPECWR-PHD Socket Header - Single, –, –
Simu­lation–
Availability
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Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Socket Header - Single
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Pins10 
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TypeStraight 
Rated Current3 A
Working Voltage250 V (AC)
PackagingTray 
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GenderSocket Header 
MountTHT 
Length25.9 mm
Operating Temperature -40 °C up to +105 °C
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61303621821
SPECWR-PHD Socket Header - Dual, –, –
Simu­lation–
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Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Socket Header - Dual
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Pins36 
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TypeStraight 
Rated Current3 A
Working Voltage250 V (AC)
PackagingTray 
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GenderSocket Header 
MountTHT 
Length46.22 mm
Operating Temperature -40 °C up to +105 °C
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694108106102
SPECWR-DC Power Jacks, –, –
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Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-DC Power Jacks
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Center pin Ø2.5 mm
Recommended Plug outer Ø5.5 mm
TypeRight Angled 
Rated Current5 A
Working Voltage24 V (AC)
PackagingTape and Reel 
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Variantwith Pegs 
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MountSMT 
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Operating Temperature -40 °C up to +85 °C
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434121025816
SPECWS-TASV SMT Tact Switch 6.0x3.8 mm, –, –
Simu­lation–
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Downloads6 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWS-TASV SMT Tact Switch 6.0x3.8 mm
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Rated Current0.05 A
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PackagingTape and Reel 
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Operating Temperature -40 °C up to +85 °C
Height2.5 mm
Operation Force160 g
Electrical Life50000 Cycles
Actuator ColorBlack 
WashableNo 
Vaporphase processnot specified 
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61300211121
SPECWR-PHD Pin Header - Single, –, –
Simu­lation–
Availability
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Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
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Pins2 
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TypeStraight 
Rated Current3 A
Working Voltage250 V (AC)
PackagingBag 
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GenderPin Header 
MountTHT 
Length5.08 mm
Operating Temperature -40 °C up to +105 °C
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61300311121
SPECWR-PHD Pin Header - Single, –, –
Simu­lation–
Availability
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Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
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Pins3 
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TypeStraight 
Rated Current3 A
Working Voltage250 V (AC)
PackagingBag 
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GenderPin Header 
MountTHT 
Length7.62 mm
Operating Temperature -40 °C up to +105 °C
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61300621121
SPECWR-PHD Pin Header - Dual, –, –
Simu­lation–
Availability
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Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Dual
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Pins6 
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TypeStraight 
Rated Current3 A
Working Voltage250 V (AC)
PackagingBag 
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GenderPin Header 
MountTHT 
Length7.62 mm
Operating Temperature -40 °C up to +105 °C
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61300811821
SPECWR-PHD Socket Header - Single, –, –
Simu­lation–
Availability
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Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Socket Header - Single
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Pins8 
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TypeStraight 
Rated Current3 A
Working Voltage250 V (AC)
PackagingTray 
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GenderSocket Header 
MountTHT 
Length20.82 mm
Operating Temperature -40 °C up to +105 °C
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65100516121
SPECWR-USB Mini/Micro Connectors, –, –
Simu­lation–
Availability
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Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-USB Mini/Micro Connectors
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Pins5 
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TypeHorizontal 
Rated Current1 A
Working Voltage30 V (AC)
PackagingTape and Reel & Mylar 
Interface TypeType B 
Variantwith Pads & Pegs 
GenderReceptacle 
MountSMT 
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Operating Temperature -40 °C up to +105 °C
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