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Integrated Circuits (ICs)

LM5017MRE/NOPB

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Texas Instruments

7.5-100V WIDE VIN, 600MA CONSTANT ON-TIME SYNCHRONOUS BUCK REGULATOR

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HSOIC (DDA)
Integrated Circuits (ICs)

LM5017MRE/NOPB

Active
Texas Instruments

7.5-100V WIDE VIN, 600MA CONSTANT ON-TIME SYNCHRONOUS BUCK REGULATOR

Technical Specifications

Parameters and characteristics for this part

SpecificationLM5017MRE/NOPB
Current - Output600 mA
Frequency - SwitchingAdj to 1MHz
FunctionStep-Down
Mounting TypeSurface Mount
Number of Outputs1
Operating Temperature [Max]125 ¯C
Operating Temperature [Min]-40 °C
Output ConfigurationPositive
Output TypeAdjustable
Package / Case8-PowerSOIC
Package / Case [x]0.154 in
Package / Case [y]3.9 mm
Supplier Device Package8-SO PowerPad
Synchronous RectifierTrue
TopologyBuck
Voltage - Input (Max) [Max]100 V
Voltage - Input (Min) [Min]7.5 V
Voltage - Output (Max) [Max]90 V
Voltage - Output (Min/Fixed)1.225 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyCut Tape (CT) 1$ 4.20
10$ 3.78
25$ 3.57
100$ 3.09
Digi-Reel® 1$ 4.20
10$ 3.78
25$ 3.57
100$ 3.09
Tape & Reel (TR) 250$ 2.94
500$ 2.63
1250$ 2.22
2500$ 2.11
Texas InstrumentsSMALL T&R 1$ 3.17
100$ 2.78
250$ 1.95
1000$ 1.57

Description

General part information

LM5017 Series

The LM5017 is a 100-V, 600-mA synchronous stepdown regulator with integrated high side and low side MOSFETs. The constant on-time (COT) control scheme employed in the LM5017 requires no loop compensation, provides excellent transient response, and enables very high step-down ratios. The on-time varies inversely with the input voltage resulting in nearly constant frequency over the input voltage range. A high voltage startup regulator provides bias power for internal operation of the IC and for integrated gate drivers.

A peak current limit circuit protects against overload conditions. The undervoltage lockout (UVLO) circuit allows the input undervoltage threshold and hysteresis to be independently programmed. Other protection features include thermal shutdown and bias supply undervoltage lockout (VCCUVLO).

The LM5017 device is available in WSON-8 and HSOP PowerPAD-8 plastic packages.

Documents

Technical documentation and resources

Buck Converter Quick Reference Guide (Rev. B)

Selection guide

Is Your IGBT Gate-Driver Power Supply Optimized

Application note

Simplifying 100V wide VIN power conversion

Technical article

Isolated Power Topologies for PLC I/O Modules and Other Low-Power Applications (Rev. A)

Product overview

Wide VIN power management ICs simplify white paper (Rev. A)

White paper

Fly-Buck(TM) converter provides EMC and isolation in PLC applications

Analog Design Journal

Control-Mode Quick Reference Guide (Rev. B)

Analog Design Journal

Valuing wide VIN, low EMI synchronous buck circuits for cost-driven, demanding a (Rev. A)

White paper

Laying out an inverting buck-boost converter for success

Technical article

AN-2292 Designing an Isolated Buck (Fly-Buck) Converter (Rev. C)

Application note

Create a Fly-Buck™ converter in WEBENCH® Power Designer

Technical article

Stability Analysis and Design of COT Type-3 Ripple Circuit

Application note

Powering Drones With a Wide VIN DC-DC Converter (Rev. A)

Application brief

AN-2171 Designing Constant-On-Time Buck Regulators for Low Drop-Out Voltage (Rev. A)

Application note

Power Tips: Self-drive your synchronous rectifier

Technical article

Why a wide VIN DC/DC converter is a good fit for high-cell-count battery-powered d

Technical article

High-Voltage PoL Power Solutions

More literature

AN-2204 LM5017 Isolated Supply Evaluation Board (Rev. B)

User guide

LM5017 100-V, 600-mA Constant On-Time Synchronous Buck / Fly-Buck™ Regulator datasheet (Rev. K)

Data sheet

What is behind isolated DC/DC converter voltage regulation?

Technical article

Fly-Buck™ Solution

Product overview

Power Management Guide 2018 (Rev. R)

Selection guide

AN-2200 LM5017 Evaluation Board (Rev. B)

User guide

Designing isolated rails on the fly with Fly-Buck™ converters

White paper