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16-HTSSOP
Integrated Circuits (ICs)

LM5575Q0MHX/NOPB

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Texas Instruments

75V, 1.5A STEP-DOWN SWITCHING REGULATOR

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16-HTSSOP
Integrated Circuits (ICs)

LM5575Q0MHX/NOPB

Active
Texas Instruments

75V, 1.5A STEP-DOWN SWITCHING REGULATOR

Technical Specifications

Parameters and characteristics for this part

SpecificationLM5575Q0MHX/NOPB
Current - Output1.5 A
Frequency - Switching [Max]500 kHz
Frequency - Switching [Min]50 kHz
FunctionStep-Down
GradeAutomotive
Mounting TypeSurface Mount
Number of Outputs1
Operating Temperature [Max]150 °C
Operating Temperature [Min]-40 °C
Output ConfigurationPositive
Output TypeAdjustable
Package / Case16-PowerTSSOP
Package / Case0.173 in, 4.4 mm Width
QualificationAEC-Q100
Supplier Device Package16-HTSSOP
Synchronous RectifierFalse
TopologyBuck
Voltage - Input (Max) [Max]75 V
Voltage - Input (Min) [Min]6 V
Voltage - Output (Max) [Max]70 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$ 7.69
10$ 6.94
25$ 6.62
100$ 5.75
250$ 5.49
500$ 5.01
1000$ 4.36
Digi-Reel® 1$ 7.69
10$ 6.94
25$ 6.62
100$ 5.75
250$ 5.49
500$ 5.01
1000$ 4.36
Tape & Reel (TR) 2500$ 4.20
Texas InstrumentsLARGE T&R 1$ 5.88
100$ 4.80
250$ 3.77
1000$ 3.20

Description

General part information

LM5575-Q1 Series

The LM5575-Q1 is an easy-to-use buck regulator that allows design engineers to design and optimize a robust power supply using a minimum set of components. Operating with an input voltage range of 6 V to 75 V, the LM5575-Q1 delivers 1.5 A of continuous output current with an integrated 330-mΩ N-channel MOSFET. The regulator utilizes an emulated current mode architecture which provides inherent line regulation, tight load-transient response, and ease-of-loop compensation without the usual limitation of low-duty cycles associated with current mode regulators. The operating frequency is adjustable from 50 kHz to 500 kHz to allow optimization of size and efficiency. The LM5575-Q1 ensures robustness with cycle-by-cycle current limit, short-circuit protection, thermal shutdown, and remote shutdown. The device is available in a power enhanced 16-pin HTSSOP package featuring an exposed die attach pad for thermal dissipation. The LM5575-Q1 is supported by the full suite of WEBENCH®on-Line design tools. For AEC-Q100 grade 1 and grade 0 orderable numbers, see the orderable addendum at the end of this data sheet.

The LM5575-Q1 is an easy-to-use buck regulator that allows design engineers to design and optimize a robust power supply using a minimum set of components. Operating with an input voltage range of 6 V to 75 V, the LM5575-Q1 delivers 1.5 A of continuous output current with an integrated 330-mΩ N-channel MOSFET. The regulator utilizes an emulated current mode architecture which provides inherent line regulation, tight load-transient response, and ease-of-loop compensation without the usual limitation of low-duty cycles associated with current mode regulators. The operating frequency is adjustable from 50 kHz to 500 kHz to allow optimization of size and efficiency. The LM5575-Q1 ensures robustness with cycle-by-cycle current limit, short-circuit protection, thermal shutdown, and remote shutdown. The device is available in a power enhanced 16-pin HTSSOP package featuring an exposed die attach pad for thermal dissipation. The LM5575-Q1 is supported by the full suite of WEBENCH®on-Line design tools. For AEC-Q100 grade 1 and grade 0 orderable numbers, see the orderable addendum at the end of this data sheet.

Documents

Technical documentation and resources

AN-1569 LM5575 Evaluation Board (Rev. C)

EVM User's guide

AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A)

Application note

AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A)

Application note

Input and Output Capacitor Selection

Application note

Die D/S LM5575Q0 MDC MCD2870A Simple Switcher® 75V, 1.5A Step-Down Switching Reg

More literature

AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A)

Application note

Die D/S LM5575Q0-MDC MWC SIMPLE SWITCHER® 75v, 1.5a step-down switching reg

More literature

AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C)

Application note

AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C)

Application note

AN-1197 Selecting Inductors for Buck Converters (Rev. B)

Application note

Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A)

Application note

Understanding and Applying Current-Mode Control Theory

Application note

AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B)

Application note

AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C)

Application note

AN-1997 Error Amplifier Limitations in High-Performance Regulator Applications (Rev. A)

Application note

AN-643 EMI/RFI Board Design (Rev. B)

Application note

Quick Start Guide for a 1.5 Amp Buck Regulator Using the LM5575 and LM25575 (Rev. B)

Application note

AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C)

Application note

Die D/S LM5575 MDC MWC Simple Switcher 75V, 1.5A Step-down Switching Regulator

More literature

Semiconductor and IC Package Thermal Metrics (Rev. D)

Application note

LM5575-Q1 75-V, 1.5-A Step-down Switching Regulator datasheet (Rev. F)

Data sheet

Overcoming Challenges in Designing Step-Dwn Reg Apps w/40V Input Voltage (Rev. A)

White paper