3.5V to 36V, 6A Synchronous Step-Down Voltage Converter
Product details
Parameters
Package | Pins | Size
Features
- AEC-Q100 Qualified for Automotive Applications
- Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
- Device HBM ESD Classification Level 2 kV
- Device CDM ESD Classification Level C5
- Wettable Flanks QFN Package (WQFN)
- Low EMI and Low Switching Noise
- Low Quiescent Current
- 0.8 µA in Shutdown (typical)
- 15 µA in Active Mode With No Load (typical)
- Wide Voltage Conversion Range:
- tON-MIN = 60 ns (typical)
- tOFF-MIN = 70 ns (typical)
- Low MOSFET ON-Resistance:
- RDS_ON_HS = 53 mΩ (typical)
- RDS_ON_LS = 31 mΩ (typical)
- Adjustable Frequency Range: 350 kHz to 2.2 MHz
- Pin-Selectable Auto Mode or Forced PWM Mode
- Start-up into Pre-Biased Load, Fixed or Adjustable Soft-Start Time, and Tracking
- Synchronizable to External Clock, Internal Compensation, Power-Good Flag, and Precision Enable
- Cycle-by-Cycle Current Limiting, Hiccup, UVLO, and Thermal Shutdown Protections
- Create a Custom Design With the WEBENCH® Power Designer using LM73605-Q1 or LM73606-Q1
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Description
The LM73605-Q1/LM73606-Q1 family of devices are easy-to-use synchronous step-down DC-DC converters capable of driving up to 5 A (LM73605-Q1) or 6 A (LM73606-Q1) of load current from a supply voltage ranging from 3.5 V to 36 V. The LM73605-Q1/LM73606-Q1 provide exceptional efficiency and output accuracy in a very small solution size. Peak current-mode control is employed. Additional features such as adjustable switching frequency, synchronization to an external clock, FPWM option, power-good flag, precision enable, adjustable soft start, and tracking provide both flexible and easy-to-use solutions for a wide range of applications. Automatic frequency foldback at light load and optional external bias improve efficiency over the entire load range. The family requires few external components and has a pinout designed for simple PCB layout with optimal EMI and thermal performance. Protection features include thermal shutdown, input undervoltage lockout, cycle-by-cycle current limiting, and hiccup short-circuit protection. The LM73605-Q1 and LM73606-Q1 devices are pin-to-pin compatible for easy current scaling.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | LM7360x-Q1 3.5-V to 36-V, 5-A or 6-A Synchronous Step-Down Voltage Converter datasheet (Rev. A) | Dec. 19, 2018 |
Selection guide | Buck Converter Quick Reference Guide (Rev. A) | Mar. 31, 2020 | |
Technical articles | Optimizing flip-chip IC thermal performance in automotive designs | Dec. 11, 2019 | |
Technical articles | How to meet European Commission ADAS requirements with TI DC/DC converters | May 08, 2019 | |
Technical articles | Minimize the impact of the MLCC shortage on your power application | Mar. 29, 2019 | |
Application note | Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems | Sep. 10, 2018 | |
Technical articles | A review of EMI standards, part 1 – conducted emissions | Jun. 28, 2018 | |
Application note | Designing High Performance, Low-EMI, Automotive Power Supplies | Sep. 30, 2017 | |
User guide | LM73605/LM73606 EVM User's Guide | Sep. 20, 2017 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The LM73606EVM-5V-400K evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LM73606 synchronous step-down voltage converter. The EVM operates from 6V to 36V input and provides a 5V output voltage with 6A maximum load current.
Features
- High Efficiency at light loads and heavy loads
- Synchronous Rectification
- Wide-Input Voltage Range
- Auto mode or FPWM mode
- Frequency Synchronization
- Low Quiescent Current
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
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CAD/CAE symbols
Package | Pins | Download |
---|---|---|
WQFN (RNP) | 30 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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