3.5V to 36V, 1A Synchronous 2.1MHz Step-Down Converter for Automotive Applications
Product details
Parameters
Package | Pins | Size
Features
- Qualified for Automotive Applications
- AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to 125°C
Ambient Operating Temperature Range - Device HBM Classification Level 2
- Device CDM Classification Level C5
- Device Temperature Grade 1: –40°C to 125°C
- –40°C to 150°C Junction Temperature Range
- Wide Operating Input Voltage: 3.55 V to 36 V
(With Transient to 42 V) - Spread Spectrum Option Available
- 2.1-MHz Fixed Switching Frequency
- Low Quiescent Current: 23 µA
- Shutdown Current: 1.8 µA
- Adjustable, 3.3-V, or 5-V Output
- Maximum Current Load: 650 mA for LM53600-Q1,
1000 mA for LM53601-Q1 - Pin Selectable Forced PWM Mode
- RESET Output with Filter and Delay Release
- External Frequency Synchronization
- Internal Compensation, Soft Start, Current Limit,
and UVLO - 10-Lead, 3-mm × 3-mm SON Package with
Wettable Flanks
Description
The LM53600-Q1 and LM53601-Q1 synchronous buck regulator devices are optimized for automotive applications, providing an output voltage of 5 V, 3.3 V, or an adjustable output. Load current up to 650 mA is supported by the LM53600-Q1, while the LM53601-Q1 supports up to 1000 mA. Advanced high-speed circuitry allows the LM53600-Q1 and LM53601-Q1 devices to regulate from an input of 18 V to an output of 3.3 V at a fixed frequency of 2.1 MHz. Innovative architecture allows the device to regulate a 3.3-V output from an input voltage of only 3.8 V. The input voltage range up to 36 V, with transient tolerance of up to 42 V, eases input surge protection design. An open drain reset output, with filtering and delayed release, provides a true indication of system status. This feature negates the requirement for an additional supervisory component, saving cost and board space. Seamless transitions between PWM and PFM modes, along with a quiescent current of only 23 µA, ensures high efficiency and superior transient response at all loads. Few external components are needed allowing the generation of compact PCB layout. While the LM53600-Q1 and LM53601-Q1 devices are Q1 rated, electrical characteristics are guaranteed across a junction temperature range of –40°C up to 150°C.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | LM53600/01-Q1, 0.65A/1A, 36V Synchronous, 2.1MHz, Automotive Step Down DC-DC Converter datasheet (Rev. B) | Feb. 02, 2016 |
Selection guide | Buck Converter Quick Reference Guide (Rev. A) | Mar. 31, 2020 | |
Technical articles | Minimize the impact of the MLCC shortage on your power application | Mar. 29, 2019 | |
Selection guide | Automotive Infotainment EE Buck Converter/Controller Selection Guide (Rev. A) | Jan. 15, 2019 | |
Technical articles | How to overcome size, EMI and thermal challenges of automotive LED lighting | Apr. 09, 2018 | |
Application note | Designing High Performance, Low-EMI, Automotive Power Supplies | Sep. 30, 2017 | |
Technical articles | The value of wettable flank-plated QFN packaging for automotive applications | Feb. 03, 2016 | |
User guide | LM53600MAEVM and LM53601MAEVM User's Guide | Oct. 15, 2015 | |
User guide | LM53600NAEVM and LM53601LAEVM User's Guide | Oct. 15, 2015 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
LM53601LAEVM Demonstrates the capabilities of the LM53601LQDSX Automotive Integrated Buck regulator. It features all the input necessary to configure and operate the device. The EVM has an EMI filter on the back side. The user can choose to bypass that filter using the available posts close to the (...)
Features
- Configurable to meet the user's need
- Compact design
Description
LM53601MAEVM Demonstrates the capabilities of the LM53601MQDSX Automotive Integrated Buck regulator. It features all the input necessary to configure and operate the device. The EVM has an EMI filter on the back side. The user can choose to bypass that filter using the available posts close to the (...)
Features
- Configurable to meet the user's need
- Compact design
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
- (...)
Reference designs
Design files
-
download TIDA-050029 BOM.pdf (304KB) -
download TIDA-050029 Assembly Drawing.pdf (417KB) -
download TIDA-050029 PCB.pdf (1723KB) -
download TIDA-050029 CAD Files.zip (1759KB) -
download TIDA-050029 Gerber.zip (701KB)
Design files
-
download TIDA-01348 BOM.pdf (86KB) -
download TIDA-01348 Assembly Drawing.pdf (392KB) -
download TIDA-01348 PCB.pdf (9569KB) -
download TIDA-01348 CAD Files.zip (20KB) -
download TIDA-01348 Gerber.zip (322KB)
Design files
-
download TIDA-01428 BOM.pdf (67KB) -
download TIDA-01428 Assembly Drawing.pdf (213KB) -
download TIDA-01428 PCB.pdf (1019KB) -
download TIDA-01428 CAD Files.zip (1217KB) -
download TIDA-01428 Gerber.zip (557KB)
The design is divided into four major blocks:
- EMI filter: Common mode and a differential filter for conducted EMI suppression
- (...)
Design files
-
download TIDA-00745 BOM.pdf (25KB) -
download TIDA-00745 Layer Plots.zip (1266KB) -
download TIDA-00745 Gerber.zip (495KB)
- Power Block: This design support Wide Vin, i.e., 4.5V-36V. LM53601 is used for first stage DC/DC conversion, which can deliver 1A at 3.3V output (...)
Design files
-
download PMP10653 BOM.pdf (23KB) -
download PMP10653 Gerber.zip (1083KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
WSON (DSX) | 10 | 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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