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reference designMCP16331 | Demoboard DS20005308D

Microchip MCP16331 | Demoboard DS20005308D

High-Voltage Input Integrated Switch Step-Down Regulator

Overview

TopologyBuck Converter
Input voltage4.4-50 V
Output 124 V

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

  • Up to 96% Efficiency
  • Input Voltage Range: 4.4V to 50V
  • Output Voltage Range: 2.0V to 24V
  • 2% Output Voltage Accuracy
  • Passes Automotive AEC-Q100 Reliability Testing
  • Integrated N-Channel Buck Switch: 600 m
  • Minimum 500 mA Output Current Over All Input Voltage Ranges (see Figure 2-9 for Maximum Output Current vs. VIN)
  • Up to 1.2A output current at 3.3V and 5V VOUT, VIN > 12V, SOT-23 package at +25°C ambient temperature
  • Up to 0.8A output current at 12V VOUT, VIN > 18V, SOT-23 package at +25°C ambient temperature
  • 500 kHz Fixed Frequency
  • Adjustable Output Voltage
  • Low Device Shutdown Current
  • Peak Current Mode Control
  • Internal Soft Start
  • Internal Compensation
  • Internal Pull-up on the Enable pin
  • Stable with Ceramic Capacitors
  • Cycle-by-Cycle Peak Current Limit
  • Undervoltage Lockout (UVLO): 4.1V to Start; 3.6V to Stop
  • Overtemperature Protection
  • Available Packages: 6-Lead SOT-23, 8-Lead 2 mm x 3 mm TDFN

Typical applications

  • Medical and Health Care
  • PIC® Microcontroller and dsPIC® Digital Signal Controller Bias Supply, Distributed Power Supplies, AC-DC Digital Control Power Source
  • Automotive
  • 48V, 24V and 12V Industrial Input DC-DC Conversion

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,30%(A)
RDC typ.(mΩ)
fres(MHz)
VOP(V)
Mount
IR(A)
ISAT(A)
RDC max.(mΩ)
Version
Size
ISAT,10%(A)
SamplesAvailability & Sample
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744025150
SPECWE-TPC SMT Tiny Power Inductor, 15 µH, –
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TPC SMT Tiny Power Inductor
Inductance15 µH
–
–
DC Resistance356 mΩ
Self Resonant Frequency32 MHz
–
MountSMT 
Rated Current0.72 A
Saturation Current0.9 A
DC Resistance400 mΩ
VersionSMT 
Size2828 
–
–Check availability
744042150
SPECWE-TPC SMT Tiny Power Inductor, 15 µH, –
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TPC SMT Tiny Power Inductor
Inductance15 µH
–
–
DC Resistance190 mΩ
Self Resonant Frequency35 MHz
–
MountSMT 
Rated Current1.03 A
Saturation Current0.75 A
DC Resistance220 mΩ
VersionSMT 
Size4818 
–
–Check availability
74408942150
SPECWE-SPC SMT Power Inductor, 15 µH, –

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
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-SPC SMT Power Inductor
Inductance15 µH
–
–
DC Resistance207 mΩ
Self Resonant Frequency19 MHz
–
MountSMT 
Rated Current1.1 A
Saturation Current1.6 A
DC Resistance245 mΩ
VersionSMT 
Size4828 
–
–Check availability
7447779115
SPECWE-PD SMT Power Inductor, 15 µH, 2.8 A
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-PD SMT Power Inductor
Inductance15 µH
Performance Rated Current2.8 A
Saturation Current @ 30%2.7 A
DC Resistance70 mΩ
Self Resonant Frequency19.5 MHz
Operating Voltage120 V
MountSMT 
Rated Current1.6 A
Saturation Current2.2 A
DC Resistance81 mΩ
VersionRobust 
Size7345 
Saturation Current @ 10%2.2 A
–Check availability
74437324150
SPECWE-LHMI SMT Power Inductor, 15 µH, 1.6 A
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LHMI SMT Power Inductor
Inductance15 µH
Performance Rated Current1.6 A
Saturation Current @ 30%2.75 A
DC Resistance325 mΩ
Self Resonant Frequency17 MHz
Operating Voltage120 V
MountSMT 
–
–
DC Resistance374 mΩ
–
Size4020 
Saturation Current @ 10%1.35 A
–Check availability
74438356150
SPECWE-MAPI SMT Power Inductor, 15 µH, 2.1 A

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
–
Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
Inductance15 µH
Performance Rated Current2.1 A
Saturation Current @ 30%2.85 A
DC Resistance200 mΩ
Self Resonant Frequency14 MHz
Operating Voltage80 V
MountSMT 
Rated Current1.9 A
Saturation Current2.1 A
DC Resistance230 mΩ
–
Size4020 
Saturation Current @ 10%1.35 A
–Check availability
744025220
SPECWE-TPC SMT Tiny Power Inductor, 22 µH, –
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TPC SMT Tiny Power Inductor
Inductance22 µH
–
–
DC Resistance525 mΩ
Self Resonant Frequency23 MHz
–
MountSMT 
Rated Current0.5 A
Saturation Current0.75 A
DC Resistance575 mΩ
VersionSMT 
Size2828 
–
–Check availability
744042220
SPECWE-TPC SMT Tiny Power Inductor, 22 µH, –
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TPC SMT Tiny Power Inductor
Inductance22 µH
–
–
DC Resistance280 mΩ
Self Resonant Frequency26 MHz
–
MountSMT 
Rated Current0.88 A
Saturation Current0.6 A
DC Resistance300 mΩ
VersionSMT 
Size4818 
–
–Check availability
74408942220
SPECWE-SPC SMT Power Inductor, 22 µH, –

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
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-SPC SMT Power Inductor
Inductance22 µH
–
–
DC Resistance300 mΩ
Self Resonant Frequency14 MHz
–
MountSMT 
Rated Current0.85 A
Saturation Current1.3 A
DC Resistance354 mΩ
VersionSMT 
Size4828 
–
–Check availability
7447779122
SPECWE-PD SMT Power Inductor, 22 µH, 2.45 A
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-PD SMT Power Inductor
Inductance22 µH
Performance Rated Current2.45 A
Saturation Current @ 30%2.1 A
DC Resistance90 mΩ
Self Resonant Frequency17 MHz
Operating Voltage120 V
MountSMT 
Rated Current1.41 A
–
DC Resistance110 mΩ
VersionRobust 
Size7345 
Saturation Current @ 10%1.7 A
–Check availability
74437324220
SPECWE-LHMI SMT Power Inductor, 22 µH, 1.3 A
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LHMI SMT Power Inductor
Inductance22 µH
Performance Rated Current1.3 A
Saturation Current @ 30%2.35 A
DC Resistance470 mΩ
Self Resonant Frequency14 MHz
Operating Voltage120 V
MountSMT 
–
–
DC Resistance500 mΩ
–
Size4020 
Saturation Current @ 10%1.45 A
–Check availability
74438356220
SPECWE-MAPI SMT Power Inductor, 22 µH, 1.85 A

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
–
Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
Inductance22 µH
Performance Rated Current1.85 A
Saturation Current @ 30%2.45 A
DC Resistance250 mΩ
Self Resonant Frequency11 MHz
Operating Voltage80 V
MountSMT 
Rated Current1.7 A
Saturation Current1.85 A
DC Resistance280 mΩ
–
Size4020 
Saturation Current @ 10%1.1 A
–Check availability