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Texas Instruments LM5017 | Demoboard PMP7798.1

Wide VIN FlyBuck™ Power Converter with Two Isolated Bias Supplies + One Non-Isolated Power

Overview

TopologyFlyBuck (Double Buck)
Input voltage36-75 V
Output 110 V / 0.04 A
Output 25 V / 0.08 A
Output 310 V / 0.12 A

Description

Based on the Wide VIN COT Sync Buck regulator LM5017, this FlyBuck circuit provides excellent regulation for two isolated outputs and one non-isolated output. Compared with a conventional Flyback circuit, this design features a smaller board size and minimized BOM without the need for an optocoupler. This design is well suited for applications which need bias power. Additional output voltage versions of this board are available: see PMP7798.2 and PMP7798.3

Features

  • 36V to 75V Input
  • Primary side output: 10V output at 40mA
  • Secondary side output 1: 5V output at 80mA
  • Secondary side output 2: 10V output at 120mA
  • This fully-functional evaluation board is supported with design files, a demo, and an application note

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesVINVOut1
(V)
IOut1
(mA)
VOut2
(V)
IOut2
(mA)
Vbuck
(V)
L
(µH)
NPRI : NSECISAT
(mA)
LS
(µH)
VT
(V (AC))
fswitch
(kHz)
MountL
(mm)
W
(mm)
H
(mm)
Samples
750312924SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-IBTI Isolated Buck Transformers 36 - 75 V (DC) 10 120 5 80 10 26 2:2:1 550 1 1500 750 SMT 8.35 9.5 6.35
Order Code Data­sheet Simu­lation
750312924SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesVINVOut1
(V)
IOut1
(mA)
VOut2
(V)
IOut2
(mA)
Vbuck
(V)
L
(µH)
NPRI : NSECISAT
(mA)
LS
(µH)
VT
(V (AC))
fswitch
(kHz)
MountL
(mm)
W
(mm)
H
(mm)
Samples