MAX20019

3.2MHz, 500mA Dual Step-Down Converters for Automotive Cameras

Ultra-Small 3.2MHz Dual 500mA Versatile PMIC for Camera Modules


Please check latest availability status for a specific part variant.

Description

MAX20019/MAX20020 are 2.2MHz and 3.2MHz dual step-down converters with integrated high-side and low-side MOSFETs. The high-voltage step-down converter is designed for continuous operation up to 17V input voltages. The output voltage is factory preset. Buck 1 is preset to 3.3V, 3.0V, or 2.8V. Buck 2 is preset to 1.8V, 1.5V, 1.2V, or 1V. Another option is Buck 1 preset to 5V and Buck 2 preset to 3.3V.

The low-voltage buck features fixed-frequency PWM- mode operation with a switching frequency of 2.2MHz or 3.2MHz. 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 inductance. A 500mV enable hysteresis on the MAX20019 allows the use of long, low-cost coax cables, even during slow startup situations. The MAX20020’s Buck 1 starts after VSUP is greater than 5.5V and Buck 1 is driven by the EN input.

Protection features include overvoltage (OV) protection, 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: How to Miniaturize Your Automotive Remote Camera ›


MAX20019, MAX20020: Functional Diagrams MAX20019, MAX20020: Functional Diagrams Enlarge+

Key Features

  • Small Solution Size
    • 2mm x 3mm x 0.75mm 10-pin TDFN with an Exposed Pad
    • 2.2MHz and 3.2MHz Operation Allows Smaller System Size
    • No External Components Needed for Soft-Start
  • Cable Flexibility
    • 500mV Enable Hysteresis Allows for Long, Low-Cost Cables During Slow Starts
  • EMI Solutions
    • Optional Spread-Spectrum Frequency Modulation
    • Pinout Placement Allows for Tight PCB Layout of Switching Nodes
  • Self-Protected
    • Overvoltage Protection, Thermal Shutdown, Short-Circuit Protection
  • Automotive Ready
    • Wide 3.5V to 17V Input Voltage Range for Power-Over-Coax
    • Automotive Temperature Range -40°C to +125°C
    • AEC-Q100 Qualified

Applications/Uses

  • Automotive Point-of-Load
  • Surround-View Camera Power Supplies
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Preset VOUT
(V)
Output Adjust. MethodIOUT1
(A)
Switch TypeSynchronous SwitchingDC-DC OutputsOper. Freq.
(kHz)
Design ToolsPackage/PinsBudgetary
Price
minmaxminmaxSee Notes
MAX20019 3.51715
1
1.2
1.5
1.8
2.8
3.3
5
Preset0.5InternalYes2
2200
3200
EE-Sim
TDFN/10
$1.63 @1k
MAX20020 
TDFN/10
-
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.


MAX20019EVKIT: Evaluation Kit for the MAX20019/MAX20020
MAX20020EVKIT: Evaluation Kit for the MAX20019/MAX20020

Tools & Models

  • EE-Sim: Design & Simulate MAX20019
  • MAX20019 SIMPLIS Schematic
  • 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.

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