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MAXIM MAX20049ATED/VY+RoHS

Manufacturer
MAXIM
MPN
MAX20049ATED/VY+
LCSC Part #
C3188317
Packaging
TQFN-16-SW(3x3)
Customer #
Key Attributes
Flexible, Compact Quad Power Supply with 2.2MHz, 1A Buck Converters and Dual LDOs for Automotive Camera Modules
Datasheetpdf iconMAXIM MAX20049ATED/VY+
In-Stock: 2
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QtyUnit PriceTotal Amount
1+$ 2.7926$ 2.79
10+$ 2.7259$ 27.26
30+$ 2.682$ 80.46
100+$ 2.6381$ 263.81
Standard Packaging100/Full Tube
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - Linear + Switching
ManufacturerMAXIM
PackagingTQFN-16-SW(3x3)
Synchronous RectifierYes
FunctionStep-down type
Frequency - Switching2.2MHz
Number of Outputs4
Output TypeFixed
Quiescent Current20uA
Output Voltage3.3V;1.8V
Operating Voltage5V~17V
Operating Temperature-40℃~+125℃
Output Current1A
TopologyBuck
FeaturesCycle-by-cycle current limiting;EMI optimization (spread spectrum);Operating status indication;Overcurrent Protection;Built-in LDO regulator
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Introduction

AI Translation

The MAX20049 is a dual step-down converter IC with two low-dropout regulators (LDOs), providing a single-chip solution for automotive cameras. The two step-down converters are designed for fixed-frequency PWM operation with input voltages from 5V to 17V for MAX20049, 4V to 17V for MAX20049C, and 3.5V to 17V for MAX20049D. The dedicated high-voltage inputs allow for a flexible solution. The IC provides voltage monitoring on all four output rails. Once an overvoltage or undervoltage is detected, power good gets pulled low. To accommodate long and inexpensive coax cables, the device has a 500mV SUP1 hysteresis. Both bucks offer very low on-time and allow operation from 17V input to 0.9V output. High-frequency operation allows for an all-ceramic capacitor design and small-size external components. The low-resistance on-chip switches ensure high efficiency while minimizing critical inductances. Output voltages are factory set and cover various sensor imagers needing 3.3V, 3.0V, 2.9V, 2.8V, or 2.7V. The secondary supplies cover the typical 1.8V, 1.2V, 1.1V, and < 1.0V rails for the serializer and memory. The Output-Voltage Selection section covers all the voltage options for flexibility in the camera design. Protection features include cycle-by-cycle current limit, and thermal shutdown with automatic recovery. The buck converters operate 180° out-of-phase from each other to minimize input current ripple

Features

AI Translation
  • 16-Pin Side-Wettable (3mm×3mm) TQFN with an Exposed Pad
  • Low On-Time Architecture Eliminates the Need for Cascading Bucks
  • Wide 3.5V to 17V Input Voltage Range for PowerOver-Coax Cables
  • Fixed Output-Voltage Options
  • Optional Spread-Spectrum Frequency Modulation
  • Pinout Placement Allows for Tight PCB Layout of Switching Nodes
  • Overvoltage and Undervoltage Monitoring, Overvoltage Protection, Thermal Shutdown, and Short-Circuit Protection
  • 500mV Input Hysteresis Allows for Long, Low-Cost Cables During Slow Starts
  • Automotive Ready
  • Automotive Temperature Range
  • AEC-Q100 Qualified

Applications

AI Translation
  • Camera Module—Surround, Rear, Front Point of Load