MAX16931

PRODUCTION

MAX16931

2MHz, 36V, Dual Buck with Preboost and 20µA Quiescent Current

Industry's Highest Performance Automotive Dual Buck Controller with Preboost Enables a Space-Efficient, Crank-Ready Design

PRODUCTION

MAX16930, MAX16931: Typical Operating Circuit slide

MAX16930, MAX16931: Typical Operating Circuit

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Part Models 4

1ku List Price Starting From $6.52

Features

Meets Stringent OEM Module Power Consumption and Performance Specifications
- 20µA Quiescent Current in Skip Mode
- ±1% Output-Voltage Accuracy: 5.0V/3.3V Fixed or Adjustable Between 1V and 10V
Enables Crank-Ready Designs
- Integrated Preboost for Operation Down to 2V in Bootstrap Mode
- Wide Input Supply Range from 3.5V to 36V (without Preboost)
EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range
- 50ns (typ) Minimum On-Time Guarantees Skip-Free Operation for 3.3V Output from Car Battery at 2.2MHz
- Frequency-Synchronization Input
- Resistor-Programmable Frequency Between 200kHz and 2.2MHz
Integration and Thermally Enhanced Packages Save Board Space and Cost
- Dual, 2MHz Step-Down Controllers
- 180° Out-of-Phase Operation
- Current-Mode Controllers with Forced-Continuous and Skip Modes
- Thermally Enhanced 40-Pin TQFN-EP and Side-Wettable QFND-EP Packages
Protection Features Improve System Reliability
- Supply Overvoltage and Undervoltage Lockout
- Overtemperature and Short-Circuit Protection

Additional Details

The MAX16930/MAX16931 offer two high-voltage, synchronous step-down controllers and a step-up preboost controller. They operate with an input voltage supply from 2V to 42V with preboost active and can operate in drop-out condition by running at 95% duty cycle. The devices are intended for applications with mid- to high-power requirements that operate at a wide input voltage range such as during automotive cold-crank or engine stop-start conditions.

The MAX16930/MAX16931 step-down controllers operate 180° out-of-phase at frequencies up to 2.2MHz to allow small external components, reduced output ripple, and to guarantee no AM band interference. The switching frequency is resistor adjustable. The FSYNC input programmability enables three frequency modes for optimized performance: forced fixed-frequency operation, skip mode with ultra-low quiescent current (20µA), and synchronization to an external clock. The devices also provide a spread-spectrum option to minimize EMI interference.

The MAX16930/MAX16931 are offered with an asynchronous step-up controller. This preboost circuitry turns on during low input voltage conditions. It is designed to provide power to step-down controller channels with input voltages as low as 2V.

The devices also feature a power-OK monitor and overvoltage and undervoltage lockout. Protection features include cycle-by-cycle current limit and thermal shutdown.

The devices are available in 40-pin TQFN-EP and side-wettable QFND-EP packages and are specified for operation over the -40°C to +125°C automotive temperature range.

Applications

Distributed DC Power Systems
Navigation and Radio Head Units
POL Applications for Automotive Power

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Ask a Question

Submit your question below and we will return the best answer from ADI’s knowledge database:

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Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 4

1ku List Price Starting From $6.52

Technical Documents 1

MAX16930-MAX16931: 2MHz, 36V, Dual Buck with Preboost and 20µA Quiescent Current Data Sheet (Rev.14) 06/29/2021

Design Resources 4

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX16931ATLS/V+	40-LFCSP-6X6X0.75	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX16931ATLS/V+T	40-LFCSP-6X6X0.75	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX16931BATLS/V+	40-LFCSP-6X6X0.75	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX16931BATLS/V+T	40-LFCSP-6X6X0.75	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

MAX16931ATLS/V+
Pin/Package Drawing
40-LFCSP-6X6X0.75
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

MAX16931ATLS/V+T
Pin/Package Drawing
40-LFCSP-6X6X0.75
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

MAX16931BATLS/V+
Pin/Package Drawing
40-LFCSP-6X6X0.75
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

MAX16931BATLS/V+T
Pin/Package Drawing
40-LFCSP-6X6X0.75
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

PCN/PDN Information

Filter by Model

Part Models

Product Lifecycle

PCN

Jun 18, 2021

- 2161

ASSEMBLY

MAX16931ATLS/V+

LAST TIME BUY

MAX16931ATLS/V+T

LAST TIME BUY

MAX16931BATLS/V+

PRODUCTION

MAX16931BATLS/V+T

PRODUCTION

pdf

pcn_2161

Sep 22, 2017

- 1681A

WAFER FAB

MAX16931ATLS/V+

LAST TIME BUY

MAX16931ATLS/V+T

LAST TIME BUY

MAX16931BATLS/V+T

PRODUCTION

pdf

pcn_1681a

Feb 26, 2016

- 1549_CANCELLATION

DESIGN

MAX16931ATLS/V+

LAST TIME BUY

MAX16931ATLS/V+T

LAST TIME BUY

pdf

pcn_1549_cancellation

Filter by Model

Part Models

Product Lifecycle

PCN

Jun 18, 2021

- 2161

ASSEMBLY

MAX16931ATLS/V+

LAST TIME BUY

MAX16931ATLS/V+T

LAST TIME BUY

MAX16931BATLS/V+

PRODUCTION

MAX16931BATLS/V+T

PRODUCTION

pdf

pcn_2161

Sep 22, 2017

- 1681A

WAFER FAB

MAX16931ATLS/V+

LAST TIME BUY

MAX16931ATLS/V+T

LAST TIME BUY

MAX16931BATLS/V+T

PRODUCTION

pdf

pcn_1681a

Feb 26, 2016

- 1549_CANCELLATION

DESIGN

MAX16931ATLS/V+

LAST TIME BUY

MAX16931ATLS/V+T

LAST TIME BUY

pdf

pcn_1549_cancellation

MAX16930EVKIT

Evaluation Kit for the MAX16930 and MAX16931

MAX16930EVKIT

Evaluation Kit for the MAX16930 and MAX16931

Features and Benefits

Dual, Synchronous Step-Down Controllers Operate at 180° Out-of-Phase to Reduce Switching Noise
Preboost Controller to Maintain Operation with Low Supply Voltage
3.5V to 36V Wide Input Supply Range
Buck Output Voltage: 5V and 3.3V Fixed or Adjustable Between 1V and 10V
Current-Mode Controllers with Forced-PWM and Skip Modes
Resistor-Programmable Frequency Between 1MHz and 2.2MHz
Frequency Synchronization Input
Independent Enable Inputs
Voltage Monitoring PGOOD_ Outputs
Fully Assembled and Tested

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Product Detail

The MAX16930 evaluation kit (EV kit) is a fully assembled and tested application circuit for the MAX16930 high-voltage, dual synchronous step-down controller with preboost. The EV kit is set up to provide 5V and 3.3V from an input voltage ranging from 3.5V to 36V (without preboost). The preboost circuit maintains the 10V supply rail for input voltages below 10V. Each buck rail can deliver up to 5A load current. Various jumpers are provided to help evaluate features of the MAX16930 IC.

Applications

Distributed DC Power Systems
Navigation and Radio Head Units
POL Applications for Automotive Power

MAX16930EVKIT

Evaluation Kit for the MAX16930 and MAX16931

EE-Sim 1

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