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2.2MHz Sync Boost and Step-Down Converters

Small Automotive PMIC for Infotainment & ADAS Applications

Product Details

Key Features

Parametric specs for Step-Down/Up Switching Regulators
VIN (V) (min) 3
VIN (V) (max) 5.5
VOUT1 (V) (min) 0.8
VOUT1 (V) (max) 8.5
IOUT1 (A) (max) 0.75
Switch Type Internal
Preset VOUT (V) 5
VOUT1 Tolerance (±%) 2
Output Adjust. Method Preset
Resistor
Synchronous Switching? Yes
Power Good Signal Yes
IQ (mA) (max) 0.2
Alternate Topology Step-Down
Step-Up
Switching Frequency (kHz) 2200
Design Tools EE-Sim
Package/Pins TQFN-CU/24
Oper. Temp. (°C) -40 to +85
-40 to +125
Budgetary
Price (See Notes)
2.16
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Simplified Block Diagram

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Sampling:
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Parameters

Parametric specs for Step-Down/Up Switching Regulators
VIN (V) (min) 3
VIN (V) (max) 5.5
VOUT1 (V) (min) 0.8
VOUT1 (V) (max) 8.5
IOUT1 (A) (max) 0.75
Switch Type Internal
Preset VOUT (V) 5
VOUT1 Tolerance (±%) 2
Output Adjust. Method Preset
Resistor
Synchronous Switching? Yes
Power Good Signal Yes
IQ (mA) (max) 0.2
Alternate Topology Step-Down
Step-Up
Switching Frequency (kHz) 2200
Design Tools generateDesignEESIMUrl('https://maxim.transim.com/pwm2/designreq/Index?partId=9187', '')
Package/Pins TQFN-CU/24
Oper. Temp. (°C) -40 to +85
-40 to +125
Budgetary
Price (See Notes)
2.16

Key Features

  • Multiple Functions for Small Size
    • Synchronous 750mA Boost Converter
      • Fixed from 3.8V to 8.5V in 100mV Steps
    • Synchronous Buck Converter Up to 3A
      • Factory-Configurable Output Voltage from 0.8V to 3.8V in 25mV Steps
      • Resistor-Adjustable
    • 3.0V to 5.5V Operating Supply Voltage
    • 2.2MHz Operation
    • 93% ±3% Undervoltage Threshold
    • 107% ±3% Overvoltage Threshold
    • Individual EN_ Inputs and Active-Low RESET_ Outputs
  • High-Precision
    • ±2% Output-Voltage Accuracy (OUT1) and ±1.5% Output-Voltage Accuracy (OUT2)
    • Good Load-Transient Performance
  • Robust for the Automotive Environment
    • Current Mode, Forced-PWM and Skip Operation
    • Overtemperature and Short-Circuit Protection
    • 4mm × 4mm 24-Pin TQFN
    • -40°C to +125°C Automotive Temperature Range

Applications/Uses

  • ADAS
  • Infotainment
  • SOC Power

Description

The MAX20414 is a high-efficiency, two-output, low-voltage DC-DC converter. OUT1 boosts the input supply up to 8.5V at up to 750mA, while a synchronous step-down converter (OUT2) operates from a 3.0V to 5.5V input voltage range and provides a 0.8V to 3.8V output voltage range at up to 3A. The boost converter achieves ±2% and the buck converter achieves ±1.5% output error over load, line, and temperature range.

The IC features a 2.2MHz fixed-frequency pulse-width modulation (PWM) mode for better noise immunity and load-transient response, and a pulse-frequency modulation mode (skip) for increased efficiency during light-load operation. The 2.2MHz frequency operation allows for the use of all-ceramic capacitors and minimizes external components footprint. The programmable spread-spectrum frequency modulation minimizes radiated electromagnetic emissions. Integrated low RDS(ON) switches improve efficiency at heavy loads and make the layout a much simpler task with respect to discrete solutions.

The IC is offered with either a factory-preset or resistor-adjustable output voltage on the step-down converter. The boost converter output voltage is factory-preset. Other features include soft-start, overcurrent, and over-temperature protections. This high-efficiency two-output low-voltage DC-DC converter is available in a lead(Pb)-free, 24-pin TQFN package (see the Ordering Information table for options).

Design Solution: How to Shrink Your ADAS ECUs: Wrap the Power Management Around the Signal Chain ›

Simplified Block Diagram

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.