MAX20049

Flexible, Compact Quad Power Supply with 2.2MHz, 500mA Buck Converters and Dual LDOs for Automotive Camera Modules

Industry's Smallest PMIC for ADAS Applications


Please check latest availability status for a specific part variant.

Description

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 and 4V to 17V for MAX20049C. 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 goes high impedance. 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.

Design Solution: Make Your ADAS High-Resolution Remote Camera Design Smaller and Flexible ›


Drive Higher Performance for Your Tiny Vehicle Camera Modules

Key Features

  • Small Solution Size
    • 16-Pin Side-Wettable (3mm x 3mm) TQFN with an Exposed Pad
    • Low On-Time Architecture Eliminates the Need for Cascading Bucks
    • Wide 4V to 17V Input Voltage Range for Power- Over-Coax Cables
    • Fixed Output-Voltage Options
  • EMI Solutions
    • Optional Spread-Spectrum Frequency Modulation
    • Pinout Placement Allows for Tight PCB Layout of Switching Nodes
  • Self-Protected and Robust
    • 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/Uses

  • Camera Module — Surround, Rear, Front
  • Point of Load
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Preset VOUT
(V)
Output Adjust. MethodIOUT1
(A)
Switch TypeSynchronous SwitchingPower Good SignalDC-DC OutputsOper. Freq.
(kHz)
Design ToolsPackage/Pins
minmaxminmax
MAX20049 NEW!51713.8
3
3.1
3.3
3.8
Preset0.5InternalYesYes22200EE-Sim
TQFN-CU/16
See All Step-Down Switching Regulators (358)
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.


MAX20049EVKIT: Evaluation Kit for the MAX20049

Tools & Models

  • EE-Sim: Design & Simulate MAX20049
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >

     
    Status:
    Package:
    Temperature:

    Related Resources


    MAXM15465
    4.5V to 42V, 300mA Himalaya uSLIC Step-Down Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM15466
    4.5V to 42V, 300mA Himalaya uSLIC Step-Down Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM15467
    4.5V to 42V, 300mA Himalaya uSLIC Step-Down Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17624
    2.9V to 5.5V, 1A Himalaya uSLIC Step-Down Power Modules

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17623
    2.9V to 5.5V, 1A Himalaya uSLIC Step-Down Power Modules

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAX20049
    Flexible, Compact Quad Power Supply with 2.2MHz, 500mA Buck Converters and Dual LDOs for Automotive Camera Modules

    • Small Solution Size
    • EMI Solutions
    • Self-Protected and Robust

    MAX17673
    Integrated 4.5V to 60V Synchronous 1.5A HV Buck and Dual 2.7V to 5.5V, 1A Buck Regulators

    • Reduces External Components and Total Cost
    • Integrates Three DC-DC Regulators
    • Reduces Power Dissipation

    MAX77813
    High-Efficiency Buck-Boost Converter

    • VIN Range: 2.30V to 5.5V
    • VOUT Range: 2.60V to 5.14V (I2C Programmable in 20mV Step)
    • Up to 2A Output Current in Boost Mode (VIN = 3.0V, VOUT = 3.4V, ILIM = High)

    MAX38640A
    Tiny 1.8V–5.5V Input, 330nA IQ, 700mA nanoPower Buck Converter

    • Extends Battery Life
    • Easy to Use – Addresses Popular Operation
    • Protects System in Multiple Use Cases

    MAX38641A
    Tiny 1.8V–5.5V Input, 330nA IQ, 700mA nanoPower Buck Converter

    • Extends Battery Life
    • Easy to Use – Addresses Popular Operation
    • Protects System in Multiple Use Cases

    MAX38642A
    Tiny 1.8V–5.5V Input, 330nA IQ, 700mA nanoPower Buck Converter

    • Extends Battery Life
    • Easy to Use – Addresses Popular Operation
    • Protects System in Multiple Use Cases

    MAX38642, MAX38642A
    Tiny 1.8V–5.5V Input, 330nA IQ, 700mA nanoPower Buck Converter

    • Extends Battery Life
    • Easy to Use – Addresses Popular Operation
    • Protects System in Multiple Use Cases

    MAX38643, MAX38643A
    Tiny 1.8V–5.5V Input, 330nA IQ, 700mA nanoPower Buck Converter

    • Extends Battery Life
    • Easy to Use – Addresses Popular Operation
    • Protects System in Multiple Use Cases

    MAX38643A
    Tiny 1.8V–5.5V Input, 330nA IQ, 700mA nanoPower Buck Converter

    • Extends Battery Life
    • Easy to Use – Addresses Popular Operation
    • Protects System in Multiple Use Cases

    MAX38641, MAX38641A
    Tiny 1.8V–5.5V Input, 330nA IQ, 700mA nanoPower Buck Converter

    • Extends Battery Life
    • Easy to Use – Addresses Popular Operation
    • Protects System in Multiple Use Cases

    MAX5995A
    IEEE 802.3bt-Compliant, Powered Device Interface Controllers with Integrated 91W High-Power MOSFET

    • IEEE 802.3af/at/bt Compliant
    • Type 1~4 PSE Classification Indicator or an External Wall Adapter Indicator Output
    • Simplified Wall Adapter Interface

    MAX5995B
    IEEE 802.3bt-Compliant, Powered Device Interface Controllers with Integrated 91W High-Power MOSFET

    • IEEE 802.3af/at/bt Compliant
    • Type 1~4 PSE Classification Indicator or an External Wall Adapter Indicator Output
    • Simplified Wall Adapter Interface

    MAX5995C
    IEEE 802.3bt-Compliant, Powered Device Interface Controllers with Integrated 91W High-Power MOSFET

    • IEEE 802.3af/at/bt Compliant
    • Type 1~4 PSE Classification Indicator or an External Wall Adapter Indicator Output
    • Simplified Wall Adapter Interface

    MAX20004
    36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Automotive Step-Down Converters

    • Multiple Functions for Small Size
    • High Precision
    • Robust for the Automotive Environment

    MAX20008
    36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Automotive Step-Down Converters

    • Multiple Functions for Small Size
    • High Precision
    • Robust for the Automotive Environment

    MAX20006
    36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Automotive Step-Down Converters

    • Multiple Functions for Small Size
    • High Precision
    • Robust for the Automotive Environment