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VQFN-HR (RJR)
Integrated Circuits (ICs)

LM61460AANQRJRRQ1

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Texas Instruments

AUTOMOTIVE 3-V TO 36-V, 6-A, LOW-NOISE SYNCHRONOUS STEP-DOWN CONVERTER

VQFN-HR (RJR)
Integrated Circuits (ICs)

LM61460AANQRJRRQ1

Active
Texas Instruments

AUTOMOTIVE 3-V TO 36-V, 6-A, LOW-NOISE SYNCHRONOUS STEP-DOWN CONVERTER

Technical Specifications

Parameters and characteristics for this part

SpecificationLM61460AANQRJRRQ1
Current - Output6 A
Frequency - Switching [Max]2 MHz
Frequency - Switching [Min]200 kHz
FunctionStep-Down
GradeAutomotive
Mounting TypeWettable Flank, Surface Mount
Number of Outputs1
Operating Temperature [Max]150 °C
Operating Temperature [Min]-40 °C
Output ConfigurationPositive
Output TypeAdjustable
Package / Case14-PowerVFQFN
QualificationAEC-Q100
Supplier Device Package14-VQFN-HR (4x3.5)
Synchronous RectifierTrue
TopologyBuck
Voltage - Input (Max) [Max]36 V
Voltage - Input (Min) [Min]3 V
Voltage - Output (Max) [Max]34.2 V
Voltage - Output (Min/Fixed)1 V

Pricing

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

DistributorPackageQuantity$
DigikeyTape & Reel (TR) 3000$ 2.37
Texas InstrumentsLARGE T&R 1$ 3.56
100$ 3.12
250$ 2.19
1000$ 1.76

Description

General part information

LM61460-Q1 Series

The LM61460-Q1 is an automotive-focused, high-performance, DC-DC synchronous step-down converter. With integrated high-side and low-side MOSFETs, up to 6 A of output current is delivered over a wide input range of 3.0 V to 36 V; tolerant of 42 V, easing input surge protection design. The LM61460-Q1 implements soft recovery from dropout eliminating overshoot on the output.

The LM61460-Q1 is specifically designed for minimal EMI. The device incorporates pseudo-random spread spectrum, adjustable SW node rise time, low-EMI VQFN-HR package featuring low switch node ringing, and optimized pinout for ease of use. The switching frequency can be set or synchronized between 200 kHz and 2.2 MHz to avoid noise sensitive frequency bands. In addition the frequency can be selected for improved efficiency at low operating frequency or smaller solution size at high operating frequency.

Auto-mode enables frequency foldback when operating at light loads, allowing an unloaded current consumption of only 7 µA (typical) and high light load efficiency. Seamless transition between PWM and PFM modes, along with very low MOSFET ON resistances and an external bias input, ensures exceptional efficiency across the entire load range.

Documents

Technical documentation and resources

Thermal design concerns for buck converters in high‐power automotive apps (Rev. A)

Analog Design Journal

LM61460-Q1 Automotive 3-V to 36-V, 6-A, Low EMI Synchronous Step-Down Converter datasheet (Rev. F)

Data sheet

LM614xx-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. B)

Functional safety information

How to Migrate Between LM614xx and LM624xx Product Families

Application note

Optimizing flip-chip IC thermal performance in automotive designs

Technical article

Using the LM61460-Q1 and LM61495-Q1 in USB Type-C Applications

Application note

LM61460-Q1 EVM User's Guide (Rev. D)

EVM User's guide

How device-level features and package options can help minimize EMI in automotive

Technical article

PCB Thermal Design Tips for Automotive DC/DC Converters

Application note

How to meet European Commission ADAS requirements with TI DC/DC converters

Technical article

Powering infotainment systems of the future

Technical article

Designing USB into challenging automotive applications

Technical article

Powering levels of autonomy: a quick guide to DC/DC solutions for SAE autonomy lev

Technical article

Effects of IC package on EMI performance

Technical article

Time-Saving and Cost-Effective Innovations for EMI Reduction (Rev. A)

White paper

Designing High Performance, Low-EMI, Automotive Power Supplies

Application note

How to Implement a Simple Constant Current Regulation Scheme to a PCM Based Buck

Application note

透過節省時間和成本的創新技術 降低電源中的EMI

White paper

Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A)

Application note

전원 공급 장치의 EMI 절감을 위한 시간 및 비용 효율적 혁신

White paper