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reference designLM5022 | Demoboard PMP22021

Texas Instruments LM5022 | Demoboard PMP22021

Compact isolated DC/DC flyback reference design

Overview

TopologyFlyback Converter
Input voltage9-15 V
Switching frequency170-1115 kHz
Output 13.3 V / 1.1 A
IC revisionB

Description

This reference design uses LM5022-Q1 to make an isolated 3.3-V output capable of 1.1-A from a 9-V to 15-V input. All components are placed on one side of the board to reduce assembly complexity and cost. A secondary filter reduces the output ripple to under 30-mV peak-to-peak. The design can achieve 80% efficiency across input conditions.

Features

  • Less than 1% voltage ripple on output
  • 80% efficiency across input voltage range
  • Compact board design with top side only assembly
  • 1.5-kV AC RMS isolation

Typical applications

  • Boost Converters / SEPIC Converters

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
Pins
Application
PCB/Cable/Panel
Modularity
Type
Wire Section
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC max.(mΩ)
fres(MHz)
C
VR(V (DC))
Endurance(h)
IRIPPLE(mA)
ILeak(µA)
DF(%)
Pitch(mm)
Ø D(mm)
L(mm)
Packaging
Version
VIN
VOut1(V)
IOut1(A)
L(µH)
n
VT(V (AC))
Size
Mount
SamplesAvailability & Sample
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691214310002
SPECWR-TBL Series 2143 - 3.81 mm Horiz. Entry Modular, 2, Rising Cage Clamp
Simu­lation–
Availability
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Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-TBL Series 2143 - 3.81 mm Horiz. Entry Modular
Pins2 
ApplicationRising Cage Clamp 
PCB/Cable/PanelPCB 
ModularityYes 
TypeHorizontal 
Wire Section 24 to 16 (AWG) 0.2 to 1 (mm²)
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Pitch3.81 mm
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Length7.62 mm
PackagingBox 
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MountTHT 
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74437349022
SPECWE-LHMI SMT Power Inductor, –, –
Simu­lation
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LHMI SMT Power Inductor
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Performance Rated Current9.9 A
Saturation Current @ 10%10.5 A
Saturation Current @ 30%19.1 A
DC Resistance12 mΩ
Self Resonant Frequency30 MHz
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Length7.3 mm
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VersionSMT 
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Inductance2.2 µH
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Size7050 
MountSMT 
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860010273010
SPECWCAP-ATG8 Aluminum Electrolytic Capacitors, –, –
Simu­lation
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Downloads8 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-ATG8 Aluminum Electrolytic Capacitors
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Capacitance330 µF
Rated Voltage10 V (DC)
Endurance 2000
Ripple Current363 mA
Leakage Current33 µA
Dissipation Factor19 %
Pitch2.5 mm
Diameter6.3 mm
Length11 mm
PackagingAmmopack 
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860020472003
SPECWCAP-ATG5 Aluminum Electrolytic Capacitors, –, –
Simu­lation
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Downloads8 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-ATG5 Aluminum Electrolytic Capacitors
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Capacitance10 µF
Rated Voltage25 V (DC)
Endurance 2000
Ripple Current38 mA
Leakage Current3 µA
Dissipation Factor14 %
Pitch2 mm
Diameter5 mm
Length11 mm
PackagingAmmopack 
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750310035
SPECWE-PoE Power over Ethernet Transformer, –, –
Simu­lation
Availability
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Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-PoE Power over Ethernet Transformer
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Length13.46 mm
PackagingTape and Reel 
VersionFlyback 
Input Voltage 33 - 57 V (DC)
Output Voltage 15 V
Output Current 12.7 A
Inductance77.4 µH
Turns Ratio3.67:1:2.5 
Insulation Test Voltage1500 V (AC)
SizeEP13 
MountSMT 
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