MAX16990

36V, 2.5MHz Automotive Boost/SEPIC Controllers

2.5MHz Automotive PWM Controller Enables Space-Efficient Preboost Supplies for Cold/Warm Crank Applications


Please check latest availability status for a specific part variant.

Description

The MAX16990/MAX16992 are high-performance, current-mode PWM controllers with 4µA (typ) shutdown current for wide input voltage range boost/SEPIC converters. The 4.5V to 36V input operating voltage range makes these devices ideal in automotive applications such as for front-end “preboost” or “SEPIC” power supplies and for the first boost stage in high-power LED lighting applications. An internal low-dropout regulator (PVL regulator) with a 5V output voltage enables the MAX16990/MAX16992 to operate directly from an automotive battery input. The input operating range can be extended to as low as 2.5V when the converter output is applied to the SUP input.

There are multiple versions of the devices offering one or more of the following functions: a synchronization output (SYNCO) for two-phase operation, an overvoltage protection function using a separate input pin (OVP), and a reference input pin (REFIN) to allow on-the-fly output voltage adjustment.

The MAX16990 and MAX16992 operate in different frequency ranges. All versions can be synchronized to an external master clock using the FSET/SYNC input.

In addition, the MAX16990/MAX16992 have a factory-programmable spread-spectrum option. Both devices are available in compact 12-pin TQFN and 10-pin µMAX® packages.

MAX16990, MAX16992: Functional Diagram MAX16990, MAX16992: Functional Diagram Enlarge+

Key Features

  • Minimized Radio Interference with 2.5MHz Switching Frequency Above the AM Radio Band
  • Space-Efficient Solution Design with Minimized External Components
    • 100kHz to 1MHz (MAX16990) and 1MHz to 2.5MHz (MAX16992) Switching-Frequency Ranges
    • 12-Pin TQFN (3mm x 3mm) and 10-Pin µMAX Packages
  • Spread Spectrum Simplifies EMI Management Design
  • Flexibility with Available Configurations for Boost, SEPIC, and Multiphase Applications
    • Adjustable Slope Compensation
    • Current-Mode Control
    • Internal Soft-Start (9ms)
  • Protection Features Support Robust Automotive Applications
    • Operating Voltage Range Down to 4.5V (2.5V or Lower in Bootstrapped Mode), Immune to Load- Dump Transient Voltages Up to 42V
    • PGOOD Output and Hiccup Mode for Enhanced System Protection
    • Overtemperature Shutdown
    • -40°C to +125°C Operation

Applications/Uses

  • Automotive Audio/Navigation Systems
  • Automotive LED Lighting
  • Dashboards
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
IOUT1
(A)
Output Adjust. MethodSwitch TypePower Good SignalICC
(mA)
Shutdown Mode Supply Current
(µA)
Shutdown Mode Supply Current
(µA)
DC-DC OutputsOper. Freq.
(kHz)
Design ToolsPackage/PinsBudgetary
Price
minmaxminmaxtyptypmaxSee Notes
MAX16990 2.5425366ResistorExternalYes0.75471300EE-Sim
TQFN/12
UMAX/10
$1.57 @1k
MAX16992 1.252200
TQFN/12
UMAX/10
See All Step-Up Switching Regulators (99)
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.

Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
VOUT1 Tolerance
(±%)
IOUT1
(A)
IOUT1
(A)
Output Adjust. MethodSwitch TypePower Good SignalDC-DC OutputsAlternate TopologyOper. Freq.
(kHz)
Design ToolsPackage/PinsOper. Temp.
(°C)
Budgetary
Price
minmaxminmaxSee Notes
MAX16990 2.542536166ResistorExternalYes1Step-Up300EE-Sim
See Data Sheet
-40 to +125$1.57 @1k
MAX16992 -2200
See Data Sheet
See All Step-Down/Up Switching Regulators (34)


MAX16990EVKIT: Evaluation Kits for the MAX16990 and MAX16992
MAX16992EVKIT: Evaluation Kits for the MAX16990 and MAX16992

Tools & Models

  • EE-Sim: Design & Simulate MAX16990
  • CAD Symbols and Footprints

  • MAX16990ATCC/V+
  • MAX16990ATCC/V+T
  • MAX16990ATCD/V+
  • MAX16990ATCD/V+T
  • MAX16990ATCD/VY+
  • MAX16990ATCD/VY+T
  • MAX16990ATCE/V+
  • MAX16990ATCE/V+T
  • MAX16990ATCF/V+
  • MAX16990ATCF/V+T
  • MAX16990AUBA/V+
  • MAX16990AUBA/V+T
  • MAX16990AUBB/V+
  • MAX16990AUBB/V+T
  • 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:

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