MAX20014

2.2MHz Sync Boost and Dual Step-Down Converters

Small PMIC for All Automotive Applications


Please check latest availability status for a specific part variant.

Description

The MAX20014 is a high-efficiency three-output low-voltage DC-DC converter. OUT1 boosts the input supply up to 8.5V at up to 750mA, while two synchronous step-down converters operate 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 converters achieve ±1.5% output error over load, line, and temperature range.

The device 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 device is offered with factory-preset output voltages or resistor-adjustable output voltages. Other features include soft-start, overcurrent, and overtemperature protections.

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

MAX20014: Typical Operating Circuit MAX20014: Typical Operating Circuit Enlarge+

Key Features

  • Multiple Functions for Small Size
    • Synchronous 750mA Boost Converter
      • Fixed from 3.8V to 8.5V in 100mV Steps
    • Dual Synchronous Buck Converters Up to 3A
      • Factory-Configurable Output Voltages from 0.8V to 3.8V in 25mV Steps
      • Resistor Adjustable
    • 3.0V to 5.5V Operating Supply Voltage
    • 2.2MHz Operation
    • Undervoltage Threshold of 93% ±3%
    • Overvoltage Threshold of 107% ±3%
    • Individual Active-Low RESET_ Outputs
  • High-Precision
    • ±1.5% Output-Voltage Accuracy
    • Good Load Transient Performance for Buck Converters
  • 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

  • All Automotive

See parametric specs for Multifunction PMICs (82)


Part NumberPrimary TopologyMonitor/Control FeaturesDC-DC/Power FeaturesVIN
(V)
VIN
(V)
VOUT
(V)
VOUT
(V)
Max. IOUT
(A)
Oper. Freq.
(kHz)
Package/PinsBudgetary
Price
minmaxminmaxSee Notes
MAX20014 
Step-Down
Step-Up
Dynamic V Adj.
External Synch.
Low Batt./POK Output
Output OVP
Output UVP
Reset Output
Shutdown
Avg. Current Mode Control
Current Limit
Fixed Freq./PWM
Internal Switch
Soft Start
Sync. Rectifier
35.50.8
3.8
8.5
32200
TQFN-CU/24
$2.10 @1

See parametric specs for Step-Down/Up Switching Regulators (31)


Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
IOUT1
(A)
Switch TypeOper. Freq.
(kHz)
FeaturesDesign ToolsPackage/PinsOper. Temp.
(°C)
minmaxminmaxmax
MAX20014 35.50.88.5
0.75
0.8
Internal
2000
2200
External Sync.
Fixed Freq./PWM
Reset Output
EE-Sim
TQFN-CU/24
-40 to +125

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.

MAX20014EVKIT: Evaluation Kit for the MAX20014

Tools & Models

  • EE-Sim: Design & Simulate MAX20014
  • Request Reliability Report for: MAX20014 
    Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

    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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