MAX16990

PRODUCTION

36V, 2.5MHz Automotive Boost/SEPIC Controllers

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

Data Sheet (Rev. 19) Product Selection Table
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Overview

  • 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 × 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
MAX16990
36V, 2.5MHz Automotive Boost/SEPIC Controllers
MAX16990, MAX16992: Functional Diagram
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Documentation

Data Sheet 1

Technical Articles 1

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Switching Regulators & Controllers 2
MAX15005
PRODUCTION 4.5V to 40V Input Automotive Flyback/Boost/SEPIC Power-Supply Controllers
MAX15004
PRODUCTION 4.5V to 40V Input Automotive Flyback/Boost/SEPIC Power-Supply Controllers
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Tools & Simulations

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SIMPLIS Models 3

Evaluation Kits

MAX16992EVKIT

Evaluation Kits for the MAX16990 and MAX16992

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Features and Benefits

  • 4.5V (3V in Bootstrapped Mode) Up to 36V Input Voltage Range
  • 8V Up to 2A Output
  • Demonstrates External Clock Synchronization
  • Demonstrates SUP UVLO
  • Demonstrates Cycle-by-Cycle Current Limit and Hiccup Mode
  • Thermal-Shutdown Protection
  • PGOOD Flag
  • Demonstrates Dynamic Adjustable Output
  • Switched Output Option
  • Demonstrates Two Phases of Operation
  • Proven PCB Layout and Thermal Design
  • Fully Assembled and Tested

Product Details

The MAX16990/MAX16992 evaluation kits (EV kits) are fully assembled and tested PCBs that contain a 16W DC-DC converter for front-end preboost automotive applications. The devices integrate a low-side FET driver and current-mode control-loop circuitry for output-voltage regulation, making them ideal for automotive boost or SEPIC converters. The MAX16990 integrated driver switches at 400kHz, while the MAX16992 integrated driver switches at 2.2MHz using the default configuration. The MAX16990 can be synchronized with an external clock source within the 100kHz to 1MHz range, and the MAX16992 within the 1MHz to 2.5MHz range.
The EV kits operate from a DC supply voltage of 4.5V (3V in bootstrapped mode) up to 36V. The EV kits can withstand a 42V load-dump condition for up to 400ms. Each EV kit demonstrates the device features, such as dynamic adjustable output voltage, external clock synchronization, two-phase operation configurability, cycle-by-cycle current limit, hiccup mode, and thermal shutdown. The boost converter regulates 8V and can supply a current up to 2A. Each EV kit includes an external p-MOSFET (P1) that can be used to disconnect the boost output from the load in a fault condition. The EV kits also demonstrate a reference MAX16990 design for automotive applications.

Applications

  • Automotive Audio/Navigation Systems
  • Automotive LED Lighting
  • Dashboards

MAX16990EVKIT

Evaluation Kits for the MAX16990 and MAX16992

Buy Now View Details

Features and Benefits

  • 4.5V (3V in Bootstrapped Mode) Up to 36V Input Voltage Range
  • 8V Up to 2A Output
  • Demonstrates External Clock Synchronization
  • Demonstrates SUP UVLO
  • Demonstrates Cycle-by-Cycle Current Limit and Hiccup Mode
  • Thermal-Shutdown Protection
  • PGOOD Flag
  • Demonstrates Dynamic Adjustable Output
  • Switched Output Option
  • Demonstrates Two Phases of Operation
  • Proven PCB Layout and Thermal Design
  • Fully Assembled and Tested

Product Details

The MAX16990/MAX16992 evaluation kits (EV kits) are fully assembled and tested PCBs that contain a 16W DC-DC converter for front-end preboost automotive applications. The devices integrate a low-side FET driver and current-mode control-loop circuitry for output-voltage regulation, making them ideal for automotive boost or SEPIC converters. The MAX16990 integrated driver switches at 400kHz, while the MAX16992 integrated driver switches at 2.2MHz using the default configuration. The MAX16990 can be synchronized with an external clock source within the 100kHz to 1MHz range, and the MAX16992 within the 1MHz to 2.5MHz range.
The EV kits operate from a DC supply voltage of 4.5V (3V in bootstrapped mode) up to 36V. The EV kits can withstand a 42V load-dump condition for up to 400ms. Each EV kit demonstrates the device features, such as dynamic adjustable output voltage, external clock synchronization, two-phase operation configurability, cycle-by-cycle current limit, hiccup mode, and thermal shutdown. The boost converter regulates 8V and can supply a current up to 2A. Each EV kit includes an external p-MOSFET (P1) that can be used to disconnect the boost output from the load in a fault condition. The EV kits also demonstrate a reference MAX16990 design for automotive applications.

Applications

  • Automotive Audio/Navigation Systems
  • Automotive LED Lighting
  • Dashboards
MAX16992EVKIT
Evaluation Kits for the MAX16990 and MAX16992
MAX16990EVKIT
Evaluation Kits for the MAX16990 and MAX16992

Reference Designs

MAXREFDES1017
MAXREFDES1017
MAXREFDES1017 Circuits from the lab

Selectable Single-Output SEPIC Converter

View Detailed Reference Design

Features and Benefits

  • Minimized Radio Interference with 2.5MHz Switching Frequency Above the AM Radio Band
  • Space-Efficient Solution Design with Minimized External Components
    • 100kHz to 1MHz Switching-Frequency Range
    • 12-Pin TQFN (3mm × 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
MAXREFDES1204
MAXREFDES1204
MAXREFDES1204 Circuits from the lab

Single-Output SEPIC Converter Using MAX16990

View Detailed Reference Design

Features and Benefits

  • Very High Efficiency > 90% for Load > 25%
  • Very Low Line and Load Regulation < 0.02%
  • Output Voltage Ripple < 0.7% at Nominal VIN
  • Overshoot < 2.6% for 50% Step Load
  • Continuous Conduction Mode (CCM) Operation
  • Internal Soft-Start
maxrefdes1210 figure 1
maxrefdes1210 figure 1
MAXREFDES1210 Circuits from the lab

96W, 12V Two-Phase SEPIC Using the MAX16990

View Detailed Reference Design

Features and Benefits

Space-Efficient Solution Design with Minimized External Components

  • 100kHz to 1MHz 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
MAXREFDES1017
Selectable Single-Output SEPIC Converter
MAXREFDES1017
MAXREFDES1220
Bootstrapped, 5V/2A, Step-Up DC-DC Converter with 90% Efficiency Using the MAX16990
MAXREFDES1220
MAXREFDES1204
Single-Output SEPIC Converter Using MAX16990
MAXREFDES1204
MAXREFDES1210
96W, 12V Two-Phase SEPIC Using the MAX16990
maxrefdes1210 figure 1

Latest Discussions

3 Years Ago
MAX16990 PWM clock mode when tied FSYNC to PVL
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