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reference designMCP16331 | Demoboard BB22H52A

Microchip MCP16331 | Demoboard BB22H52A

High-Voltage Input Integrated Switch Step-Down Regulator

Overview

TopologyBuck Converter
Input voltage6-50 V
Output 15 V / 0.5 A
IC revision1

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

  • Modular Design for Easy Evaluation of Each Converter
  • Clearly Labeled Sub-Modules for Quick Identification
  • Pre-Configured Output Voltages for Typical Use CasesBuilding Block Solutions – Switchers User’s Guide User Guide © 2025 Microchip Technology Inc. and its subsidiaries DS50003984A - 2
  • Test Points and Connectors for Easy Measurement and Integration

Typical applications

  • SLA Battery-Powered Devices
  • Automotive
  • Medical and Health Care
  • Distributed Power Supplies, AC/DC Adapters, PIC® Microcontroller and dsPIC® Digital Signal Controller Bias Supply, 48V, 24V and 12V Industrial Input DC-DC Conversion
  • Consumer
  • Power Meters

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
C
Tol. C
VR(V (DC))
Size
Operating Temperature
DF(%)
RISO
Ceramic Type
L(mm)
W(mm)
H(mm)
Fl(mm)
Packaging
L(µH)
IRP,40K(A)
ISAT,30%(A)
RDC typ.(mΩ)
fres(MHz)
VOP(V)
Mount
R
Tol. R
PRated(W)
TCR(ppm/ °C)
TCR(ppm/ °C)
VE(V)
SamplesAvailability & Sample
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885012207128
SPECWCAP-CSGP MLCCs 100 V(DC), 100 nF, ±10%
Simu­lation
Availability
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Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 100 V(DC)
Capacitance100 nF
Capacitance±10% 
Rated Voltage100 V (DC)
Size0805 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor2.5 %
Insulation Resistance1 GΩ
Ceramic TypeX7R Class II 
Length2 mm
Width1.25 mm
Height1.25 mm
Pad Dimension0.5 mm
Packaging7" Tape & Reel 
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885012108022
SPECWCAP-CSGP MLCCs 50 V(DC), 10 µF, ±10%
Simu­lation
Availability
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
Capacitance10 µF
Capacitance±10% 
Rated Voltage50 V (DC)
Size1206 
Operating Temperature -55 °C up to +85 °C
Dissipation Factor10 %
Insulation Resistance0.005 GΩ
Ceramic TypeX5R Class II 
Length3.2 mm
Width1.6 mm
Height1.6 mm
Pad Dimension0.6 mm
Packaging7" Tape & Reel 
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74438356220
SPECWE-MAPI SMT Power Inductor, –, –

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.

Simu­lation
Availability
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Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
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Size4020 
Operating Temperature -40 °C up to +125 °C
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Length4 mm
Width4 mm
Height2 mm
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Inductance22 µH
Performance Rated Current1.85 A
Saturation Current @ 30%2.45 A
DC Resistance250 mΩ
Self Resonant Frequency11 MHz
Operating Voltage80 V
MountSMT 
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560112120002
SPECWRIS-RSKS Thick Film Resistors, –, –
Simu­lation
Availability
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Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWRIS-RSKS Thick Film Resistors
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Size0805 
Operating Temperature -55 °C up to +155 °C
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Length2 mm
Width1.25 mm
Height0.5 mm
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MountSMT 
Resistance0 Ω
Resistance+0.05Ω/-0Ω 
Rated Power0.125 W
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560112120004
SPECWRIS-RSKS Thick Film Resistors, –, –
Simu­lation
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Downloads8 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWRIS-RSKS Thick Film Resistors
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Size0805 
Operating Temperature -55 °C up to +155 °C
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Length2 mm
Width1.25 mm
Height0.5 mm
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MountSMT 
Resistance10 kΩ
Resistance±1% 
Rated Power0.25 W
Temperature Coefficient of Resistance (min.)-100 ppm/ °C
Temperature Coefficient of Resistance (max.)100 ppm/ °C
Limiting Element Voltage150 V
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560112120013
SPECWRIS-RSKS Thick Film Resistors, –, –
Simu­lation
Availability
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Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWRIS-RSKS Thick Film Resistors
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Size0805 
Operating Temperature -55 °C up to +155 °C
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Length2 mm
Width1.25 mm
Height0.5 mm
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MountSMT 
Resistance100 kΩ
Resistance±1% 
Rated Power0.25 W
Temperature Coefficient of Resistance (min.)-100 ppm/ °C
Temperature Coefficient of Resistance (max.)100 ppm/ °C
Limiting Element Voltage150 V
–Check availability