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reference designLM5017 | Demoboard PMP10535

Texas Instruments LM5017 | Demoboard PMP10535

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

Overview

TopologyFlyBuck (Double Buck)
Input voltage20-32 V
Output 15 V / 0.08 A
Output 2-5 V / 0.08 A
Output 3-12 V / 0.08 A
Output 412 V / 0.08 A
IC revisionI

Description

The PMP10535 reference design is a low profile quad 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 four isolated outputs of ±5V, ±12V, 75mA each. The LM5017 is a 100V wide Vin, 600mA synchronous buck regulator. The input voltage range of the design is 20V to 32V, making it suitable for 24V input industrial application. The Fly-Buck can regulate the secondary side outputs without opto-coupler or aux winding and is capable of achieving good cross regulation within ±5%. With LM5017's constan on-time control, no loop compensation is required, which simplifies the design and helps reducing the external part count and BOM cost.

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
VIN
VOut1(V)
IOut1(mA)
VOut2(V)
IOut2(mA)
VOut3(V)
IOut3(mA)
VOut4(V)
IOut4(mA)
Vbuck(V)
L(µH)
NPRI : NSEC
ISAT(mA)
LS(nH)
VT(V (AC))
fswitch(kHz)
Mount
L(mm)
W(mm)
H(mm)
SamplesAvailability & Sample
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750314460
SPECWE-IBTI Isolated Buck Transformers, 16 - 36 V (DC), 12 V
Simu­lation
Availability
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Downloads8 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-IBTI Isolated Buck Transformers
Input Voltage 16 - 36 V (DC)
Output Voltage 112 V
Output Current 130 mA
Output Voltage 212 V
Output Current 230 mA
Output Voltage 3-5 V
Output Current 380 mA
Output Voltage 4-5 V
Output Current 480 mA
Buck Voltage13 V
Inductance45 µH
Turns Ratio1.79:2.29:2.29:1:1 
Saturation Current900 mA
Leakage Inductance910 nH
Insulation Test Voltage1500 V (AC)
Switching Frequency 200 - 350
MountSMT 
Length12.95 mm
Width12.7 mm
Height5.98 mm
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