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MAXIM MAX20034ATIR/VY+ product image
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MAXIM MAX20034ATIR/VY+RoHS

Manufacturer
MAXIM
MPN
MAX20034ATIR/VY+
LCSC Part #
C3188936
Packaging
TQFN-28(5x5)
Customer #
Key Attributes
2 Step-down type TQFN-28(5x5) DC DC Switching Controllers RoHS
Datasheetpdf iconMAXIM MAX20034ATIR/VY+
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QtyUnit Price(Reference Only)Total Amount
1+$ 6.9218$ 6.92
200+$ 2.6786$ 535.72
500+$ 2.5845$ 1292.25
1,000+$ 2.5382$ 2538.20
Standard Packaging60/Full Tube
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerMAXIM
PackagingTQFN-28(5x5)
Operating Temperature-40℃~+125℃
Synchronous RectifierYes
FeaturesCycle-by-cycle current limiting;Frequency synchronization;EMI optimization (spread spectrum);External compensation;Light load efficient mode;Operating status indication;Overcurrent Protection;Built-in LDO regulator
Output Current-
Number of Channels2
TopologyBuck
Frequency - Switching2.2MHz
Operating Voltage3.5V~36V
Output Voltage-
FunctionStep-down type
Quiescent Current-
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging60
Sales UnitPiece

Introduction

AI Translation

The MAX20034 is an automotive 2.2MHz, dual synchronous step-down controller IC that provides two high-voltage, synchronous step-down controllers that operate 180° out-of-phase. The IC operates with a 3.5V to 42V input-voltage supply and can function in dropout condition by running at 99% duty cycle. It is intended for applications with mid- to high-power requirements that perform at a wide input voltage range, such as during automotive cold-crank or engine stop-start conditions. The IC’s step-down controllers operate at up to 2.2MHz frequency to allow small external components, reduced output ripple, and to guarantee no AM band interference. The switching frequency is resistor adjustable (220kHz to 2.2MHz). 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 IC is also available with spread-spectrum frequency modulation to minimize EMI interference. The IC features a power-OK monitor, overvoltage lockout, and undervoltage lockout. Protection features include cycle-by-cycle current limit and thermal shutdown. The MAX20034 is specified for operation over the -40°C to +125°C automotive temperature range.

Features

AI Translation
  • Meets Stringent Automotive OEM Module Power Consumption and Performance Specifications
  • 17μA Quiescent Current in Skip Mode
  • ±1.5% Output-Voltage Accuracy: 5.0V/3.3V Fixed, or Adjustable Between 1V and 10V
  • Enables Crank-Ready Designs
  • Wide 3.5V to 36V Input Supply Range
  • 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 a Car Battery at 2.2MHz
  • Spread-Spectrum Option
  • Frequency-Synchronization Input
  • Resistor-Programmable Frequency Between 220kHz and 2.2MHz
  • Integration and Thermally Enhanced Packages Save Board Space and Cost
  • Dual, Up to 2.2MHz Step-Down Controllers
  • 180° Out-of-Phase Operation
  • Current-Mode Controllers with Forced-PWM (FPWM) and Skip Modes
  • Thermally Enhanced, 28-Pin TQFN-EP Package
  • Protection Features Improve System Reliability
  • Supply Overvoltage and Undervoltage Lockout
  • Overtemperature and Short-Circuit Protection

Applications

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