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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

Parts approved by Microchip

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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
ActiveProduction is active. Expected lifetime: >10 years.
iProduction 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
ActiveProduction is active. Expected lifetime: >10 years.
iProduction 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, –, –
Simu­lation
Availability
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Downloads10 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction 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
ActiveProduction is active. Expected lifetime: >10 years.
iProduction 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
Availability
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Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction 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
–Check availability
560112120013
SPECWRIS-RSKS Thick Film Resistors, –, –
Simu­lation
Availability
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction 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