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Texas Instruments LM5017MRX/NOPB | Demoboard PMP10558

Low Profile Triple Output Isolated Fly-Buck Power Supply for Industrial Applications

Overview

TopologyFlyBuck (Double Buck)
Input voltage18-30 V
Output 112 V / 0.05 A
Output 25 V / 0.1 A
Output 3-12 V / 0.05 A

Description

The PMP10558 reference design is a low profile triple output isolated Fly-Buck power supply for industrial applications. The power supply has a synchronous buck regulator, LM5017, and a low profile (6mm) transformer. It generates three isolated outputs depending on the transformer selection. The LM5017 is a 100V wide Vin, 600mA synchronous buck regulator. The input voltage range of the design is 18V to 30V, making it suitable for 24V input industrial applications. The Fly-Buck can regulate the secondary side outputs without an opto-coupler or auxillary winding and is capable of achieving good cross regulation within ±5%. With LM5017's constant on-time control, no loop compensation is required, which simplifies the design and helps reduce the external part count and BOM cost.

Features

Vin: 18V to 42V4 layer board (1 oz. copper on top and bottom, 1/2 oz. on middle two layers)Board dimensions: 3.2" x 1.6"Good thermal performance and efficiencyREMARK: BOM and Schematics are added with main pdf.

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesVINVOut1
(V)
IOut1
(mA)
VOut2
(V)
IOut2
(mA)
VOut3
(V)
IOut3
(mA)
Vbuck
(V)
L
(µH)
NPRI : NSECISAT
(mA)
LS
(nH)
VT
(V (AC))
fswitch
(kHz)
MountL
(mm)
W
(mm)
H
(mm)
Samples
750314462SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WE-IBTI Isolated Buck Transformers 16 - 36 V (DC) 5 100 12 40 -12 40 13 45 1.92:1:2.38:2.38 980 450 1500 200 - 350 SMT 12.95 12.7 5.98
Order Code Data­sheet Simu­lation
750314462SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesVINVOut1
(V)
IOut1
(mA)
VOut2
(V)
IOut2
(mA)
VOut3
(V)
IOut3
(mA)
Vbuck
(V)
L
(µH)
NPRI : NSECISAT
(mA)
LS
(nH)
VT
(V (AC))
fswitch
(kHz)
MountL
(mm)
W
(mm)
H
(mm)
Samples