MAX20030

Dual Buck, Sync Boost and LDO–Complete Front-End Power Supply with 17μA IQ

スペース効率に優れた、クランク対応の設計を実現する完全なフロントエンド車載電源


製品の特定バージョンの最新供給状況はこちらでご確認ください。

説明

The MAX20030/MAX20031 ICs are automotive 2.2MHz dual-synchronous step-down controllers with preboost controller and low-IQ LDO. The preboost controller enables VOUT1 and VOUT2 to stay in regulation during cold-crank operation all the way down to battery input of 2V. The ICs offer two high-voltage synchronous step-down controllers that operate 180 degrees out of phase. This device operates with an input-voltage supply from 3.5V to 42V and can operate in dropout conditions by running at 97% duty cycle. It is 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 step-down controllers operate at a frequency of 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 (220kHz to 2200kHz). SYNC input programmability enables three frequency modes for optimized performance: forced fixed-frequency operation, skip mode with ultra-low quiescent current, and synchronization to an external clock. The ICs have a spread-spectrum pin for frequency modulation to minimize EMI interference.

The ICs will be offered with a synchronous step-up controller. This preboost circuitry turns on during low input-voltage conditions, and is designed to provide power to step-down controller channels with input voltages as low at 2V.

The ICs feature a power-OK monitor and overvoltage and undervoltage lockout. Protection features include cycle-by-cycle current limit and thermal shutdown. The MAX20030/MAX20031 are specified for operation over the -40°C to +125°C automotive temperature range.

MAX20030、MAX20031:ブロックダイアグラム MAX20030、MAX20031:ブロックダイアグラム 拡大表示+

主な特長

  • Meets Stringent OEM Module Power Consumption and Performance Specifications
    • 17µA IQ with 3.3V Buck On
    • 25µA IQ with 5V Buck On
    • 25µA IQ with LDO On
    • 65µA IQ with All Controllers Enabled
  • Enables Crank-Ready Designs
    • Synchronous Boost Converter for High-Current Capability and Efficiency
  • 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
    • Forced Fixed-Frequency PWM Operation
    • Resistor-Programmable Frequency Between 220kHz and 2.2MHz
    • Pin-Selectable Spread Spectrum
  • Integration and Thermally Enhanced Packages Save Board Space and Cost
    • Dual 2.2MHz Step-Down Controller with Synchronous Boost Controller and HV 200mA LDO
    • Current-Mode Controller with Forced-Fixed Frequency and Skip Modes
    • Thermally Enhanced 7mm x 7mm, 48-Pin TQFN Packages with Exposed Pad
  • Protection Features Improve System Reliability
    • Supply Overvoltage and Undervoltage Lockout
    • Overtemperature and Short-Circuit Protections

アプリケーション/用途

  • DC分散電源システム
  • 計器クラスタ
  • ナビゲーションおよびラジオヘッドユニット

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX20030EVKIT: MAX20030/MAX20031の評価キット

ツールおよびモデル

  • EE-Sim: MAX20030設計およびシミュレーション
  • 信頼性レポートをリクエスト: MAX20030 
    デバイス   ウェハープロセス   プロセス技術   サンプルサイズ   不合格   FIT (25°C)   FIT (55°C)   Material Composition  

    注: 不良率はプロセス技術ごとにまとめられ、関連する型番にマッピングされます。 不良率はテストされたユニット数に大きく依存します。

    品質管理システム >
    環境管理システム >

     
    Status:
    Package:
    Temperature:

    関連リソース


    MAX38802
    Integrated, Step-Down Switching Regulators with Selectable Applications Configurations

    • High-Efficiency Solution
    • Flexible Design Allows Early PCB Definition
    • Advanced Architecture, Protection and Reporting Guarantees Reliable Designs
    • Saves Board Space

    MAX38803
    Integrated, Step-Down Switching Regulators with Selectable Applications Configurations

    • High-Efficiency Solution
    • Flexible Design Allows Early PCB Definition
    • Advanced Architecture, Protection and Reporting Guarantees Reliable Designs
    • Saves Board Space

    MAX77831
    2.5V to 16V Input, 18W Output High-Efficiency Buck-Boost Converter

    • Wide Input Voltage Range: 2.5V to 16V
    • Default Output Voltage
    • Default 1.8MHz Switching Frequency

    MAX15157B
    60V Current-Mode Buck Controller with Accurate Current Report

    • Wide Operating Range Reduces Development Time
    • Integration Reduces Design Footprint
    • Robust Fault Protection Improves Quality and Simplifies System Design

    MAX38886
    2.5V to 5.0V, 0.5A/2.5A, Charge/Discharge Regulator for Supercapacitor Backup Applications

    • 2.5V to 5V System Output Voltage
    • Up to 4.5V Capacitor Voltage Range
    • Up to 2.5A Peak Inductor Discharge Current

    MAX17783C
    4.5V to 60V, 2.5A, High Efficiency, Step-Down DC-DC Converter

    • Reduces External Components and Total Cost
    • Reduces Number of DC-DC Regulators to Stock
    • Reduces Power Dissipation

    MAX20028
    Step-Down Controller with Dual 2.1MHz Step-Down DC-DC Converters

    • High-Efficiency Voltage DC-DC Controller Saves Power
    • Dual 2.1MHz DC-DC Converters with Integrated FETs Saves Space
    • High Accuracy to Meet ASIL Specification

    MAX77533
    14V Input, 1.5A High-Efficiency Buck Converter with 9μA IQ

    • 1.5A Single Channel Buck Regulator
    • 3V to 14V Input Voltage Range
    • 0.8V to 99%VSUP Output Voltage Range

    MAX20766
    Smart Slave IC with Integrated Current and Temperature Sensors

    • Increased Power Density with Fewer External Components
    • Accurate Real-Time Telemetry of Critical Parameters
    • Advanced Self-Protection Features for the System and IC

    MAX20796
    Dual-Phase Scalable Integrated Voltage Regulator with PMBus Interface

    • Peak Efficiency 92%; Full-Load Efficiency 90% at VIN = 12V, VOUT = 1V
    • Operating Input Voltage Range 4.5V to 16V
    • Output Voltage Range is 0.5V to 5.5V

    MAX17227A
    400mV to 5.5V Input, 2A nanoPower Boost Converter with Short-Circuit Protection and True Shutdown

    • 350nA Quiescent Supply Current from Output
    • Output Short-Circuit Protection
    • True Shutdown Mode

    MAX20031
    Dual Buck, Sync Boost and LDO–Complete Front-End Power Supply with 17μA IQ

    • Meets Stringent OEM Module Power Consumption and Performance Specifications
    • Enables Crank-Ready Designs
    • EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range

    MAX20030
    Dual Buck, Sync Boost and LDO–Complete Front-End Power Supply with 17μA IQ

    • Meets Stringent OEM Module Power Consumption and Performance Specifications
    • Enables Crank-Ready Designs
    • EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range

    MAX25431
    Automotive 40V, 2.2MHz, H-Bridge Buck-Boost Controller

    • Meets Stringent Automotive Quality and Reliability Requirements
    • Efficient Solution in a Small Solutions Size
    • Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements

    MAX20710
    Integrated, Step-Down Switching Regulator with PMBus

    • High Power Density and Low Component Count
    • Optimized Component Performance and Efficiency with Reduced Design-In Time
    • Increased Power-Supply Reliability with System and IC Self-Protection Features

    MAX17760
    4.5V to 76V, 300mA, High-Efficiency, Synchronous Step-Down DC-DC Converter

    • Reduces External Components and Total Cost
    • Reduces Number of DC-DC Regulators to Stock
    • Reduces Power Dissipation

    MAX20430
    4出力ミニPMIC、セーフティアプリケーション用

    • 複数の機能を小型サイズで実現
    • ASILアプリケーション用の高精度
    • 診断および冗長回路

    MAX18066
    高効率、4A、ステップダウンDC-DCレギュレータ、パワースイッチ内蔵

    • 高機能集積によってソリューションサイズを縮小
    • 高効率によって電力を節約
    • 安全、高信頼性、高精度動作

    MAX18166
    高効率、4A、ステップダウンDC-DCレギュレータ、パワースイッチ内蔵

    • 高機能集積によってソリューションサイズを縮小
    • 高効率によって電力を節約
    • 安全、高信頼性、高精度動作

    種類 ID タイトル
    評価ボード10587MAX20030EVKIT MAX20030/MAX20031の評価キット