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4.5V to 36V, 1A Himalaya uSLIC Step-Down Power Module

High-Efficiency Synchronous Buck Regulator Offers Balance of High Performance, Wide Temperature Range, and Small Size

Product Details

The Himalaya series of voltage regulator ICs and power modules enable cooler, smaller, and simpler power supply solutions. The MAXM17630/MAXM17631/MAXM17632 are a family of high-efficiency, synchronous step-down DC-DC modules with integrated controller, MOSFETs, compensation components and inductor that operate over a wide input-voltage range. The modules operate from 4.5V to 36V and deliver up to 1A output current. The MAXM17630 and MAXM17631 are fixed 3.3V and 5V output modules, respectively. The MAXM17632 is an adjustable output (0.9V to 12V) module. The modules significantly reduce design complexity, manufacturing risks, and offer a true plug-and-play power-supply solution, reducing time-to-market. Built-in compensation across the output-voltage range eliminates the need for external compensation components.

These modules feature peak-current-mode control architecture. The modules can be operated in pulse-width modulation (PWM), or pulse-frequency modulation (PFM), or discontinuous-conduction mode (DCM) to enable high efficiency under light-load conditions.

The feedback-voltage regulation accuracy over -40°C to +125°C for the module family is ±1.2%. These power modules are available in a low profile, compact 16-pin, 3mm x 3mm x 1.75mm, uSLIC™ package. Simulation Models are available.

Key Features

  • Easy to Use
    • Wide 4.5V to 36V Input
    • Adjustable 0.9V to 12V Output (MAXM17632)
    • Fixed 3.3V and 5V output versions (MAXM17630 and MAXM17631)
    • 400kHz to 2.2MHz Adjustable Frequency with External Clock Synchronization
    • ±1.2% Feedback Accuracy
    • Up to 1A Output Current
    • Internally Compensated
    • All Ceramic Capacitors
  • High Efficiency
    • Selectable PWM-, PFM- or DCM-Mode of Operation
    • Auxiliary Bootstrap Supply (EXTVCC) for Improved Efficiency
    • Shutdown Current as Low as 2.8μA (typ)
  • Flexible Design
    • Adjustable and Monotonic Startup with Prebiased Output Voltage
    • Built-In Output-Voltage Monitoring with RESET Pin (Active Low)
    • Programmable EN/UVLO Threshold
  • Robust Operation
    • Hiccup-Mode Overload Protection
    • Overtemperature Protection
    • -40°C to +125°C Ambient Operating Temperature/ -40°C to +150°C Junction Temperature
  • Rugged
    • Complies with CISPR22(EN55022) Class B Conducted and Radiated Emissions
    • Passes Drop, Shock, and Vibration Standards: JESD22-B103, B104, B111

Applications/Uses

  • Industrial Control Power Supplies
  • General Purpose Point-of-Load
  • Distributed Supply Regulation
  • Base Station Power Supplies
  • High Voltage Single-Board Systems
  • Programmable Logic Controller
Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 4.5
VIN (V) (max) 36
VOUT1 (V) (min) 0.9
VOUT1 (V) (max) 12
IOUT1 (A) (max) 1
Switch Type Internal
Preset VOUT (V) -
Output Adjust. Method Resistor
Synchronous Switching? Yes
Power Good Signal Yes
# DC-DC Outputs 1
Switching Frequency (kHz) 400
Design Tools EE-Sim
Package/Pins EMGA/16
Budgetary
Price (See Notes)
$2.65 @1k
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Simplified Block Diagram

MAXM17630, MAXM17631, MAXM17632: Typical Application Circuit MAXM17630, MAXM17631, MAXM17632: Typical Application Circuit Zoom icon

Technical Docs

Design & Development

Click any title below to view the detail page where available.

Description

The MAXM17630/MAXM17631/MAXM17632 evaluation kits (EV kits) provide a proven design to evaluate the performance of MAXM17630/MAXM17631/MAXM17632 modules. Each of these modules operates over a wide input range from 4.5V to 36V and delivers up to 1A output current. The modules are configured to demonstrate optimum performance and component sizes in this EV kit.

The MAXM17630 module delivers up to 1A with a fixed 3.3V output. The module is configured to operate at a 900kHz switching frequency, over a 4.5V to 36V input range.

The MAXM17631 module delivers up to 1A with a fixed 5V output. The module is configured to operate at a 1250kHz switching frequency, over a 7V to 36V input range.

The MAXM17632 adjustable module delivers up to 1A and is configured for 12V output. The module is configured to operate at a 2150kHz switching frequency over a 20V to 36V input range.

The EV kit feature provisions for selecting modes of operation (PWM/PFM/DCM), synchronization to an external clock source, enable/disable, and UVLO settings. The MAXM17630/MAXM17631/MAXM17632 module family data sheet provides a complete description of the parts and should be read in conjunction with this data sheet prior to operating the EV kits.

View Details

Features

  • Wide 4.5V to 36V Input Range
    • MAXM17630 Offers High 86.47% Efficiency (VIN = 24V, VOUT = 3.3V, IOUT = 1A)
    • MAXM17631 Offers High 90.46% Efficiency (VIN = 24V, VOUT = 5V, IOUT = 1A)
    • MAXM17632 Offers High 93.12% Efficiency (VIN = 24V, VOUT = 12V, IOUT = 1A)
  • Enable/UVLO Input, Resistor-Programmable UVLO Threshold
  • Selectable PWM, PFM, and DCM Modes of Operation
  • Provision to synchronize the Modules to an External Clock Source
  • Low-Profile, Surface-Mount Components
  • Proven PCB Layout
  • Fully Assembled and Tested
  • Active-Low RESET Outputs, with Pullup Resistor to Respective VCC
  • Complies with CISPR22(EN55022) Class B Conducted and Radiated Emissions

Description

The MAXM17630/MAXM17631/MAXM17632 evaluation kits (EV kits) provide a proven design to evaluate the performance of MAXM17630/MAXM17631/MAXM17632 modules. Each of these modules operates over a wide input range from 4.5V to 36V and delivers up to 1A output current. The modules are configured to demonstrate optimum performance and component sizes in this EV kit.

The MAXM17630 module delivers up to 1A with a fixed 3.3V output. The module is configured to operate at a 900kHz switching frequency, over a 4.5V to 36V input range.

The MAXM17631 module delivers up to 1A with a fixed 5V output. The module is configured to operate at a 1250kHz switching frequency, over a 7V to 36V input range.

The MAXM17632 adjustable module delivers up to 1A and is configured for 12V output. The module is configured to operate at a 2150kHz switching frequency over a 20V to 36V input range.

The EV kit feature provisions for selecting modes of operation (PWM/PFM/DCM), synchronization to an external clock source, enable/disable, and UVLO settings. The MAXM17630/MAXM17631/MAXM17632 module family data sheet provides a complete description of the parts and should be read in conjunction with this data sheet prior to operating the EV kits.

View Details

Features

  • Wide 4.5V to 36V Input Range
    • MAXM17630 Offers High 86.47% Efficiency (VIN = 24V, VOUT = 3.3V, IOUT = 1A)
    • MAXM17631 Offers High 90.46% Efficiency (VIN = 24V, VOUT = 5V, IOUT = 1A)
    • MAXM17632 Offers High 93.12% Efficiency (VIN = 24V, VOUT = 12V, IOUT = 1A)
  • Enable/UVLO Input, Resistor-Programmable UVLO Threshold
  • Selectable PWM, PFM, and DCM Modes of Operation
  • Provision to synchronize the Modules to an External Clock Source
  • Low-Profile, Surface-Mount Components
  • Proven PCB Layout
  • Fully Assembled and Tested
  • Active-Low RESET Outputs, with Pullup Resistor to Respective VCC
  • Complies with CISPR22(EN55022) Class B Conducted and Radiated Emissions

Description

The MAXM17630/MAXM17631/MAXM17632 evaluation kits (EV kits) provide a proven design to evaluate the performance of MAXM17630/MAXM17631/MAXM17632 modules. Each of these modules operates over a wide input range from 4.5V to 36V and delivers up to 1A output current. The modules are configured to demonstrate optimum performance and component sizes in this EV kit.

The MAXM17630 module delivers up to 1A with a fixed 3.3V output. The module is configured to operate at a 900kHz switching frequency, over a 4.5V to 36V input range.

The MAXM17631 module delivers up to 1A with a fixed 5V output. The module is configured to operate at a 1250kHz switching frequency, over a 7V to 36V input range.

The MAXM17632 adjustable module delivers up to 1A and is configured for 12V output. The module is configured to operate at a 2150kHz switching frequency over a 20V to 36V input range.

The EV kit feature provisions for selecting modes of operation (PWM/PFM/DCM), synchronization to an external clock source, enable/disable, and UVLO settings. The MAXM17630/MAXM17631/MAXM17632 module family data sheet provides a complete description of the parts and should be read in conjunction with this data sheet prior to operating the EV kits.

View Details

Features

  • Wide 4.5V to 36V Input Range
    • MAXM17630 Offers High 86.47% Efficiency (VIN = 24V, VOUT = 3.3V, IOUT = 1A)
    • MAXM17631 Offers High 90.46% Efficiency (VIN = 24V, VOUT = 5V, IOUT = 1A)
    • MAXM17632 Offers High 93.12% Efficiency (VIN = 24V, VOUT = 12V, IOUT = 1A)
  • Enable/UVLO Input, Resistor-Programmable UVLO Threshold
  • Selectable PWM, PFM, and DCM Modes of Operation
  • Provision to synchronize the Modules to an External Clock Source
  • Low-Profile, Surface-Mount Components
  • Proven PCB Layout
  • Fully Assembled and Tested
  • Active-Low RESET Outputs, with Pullup Resistor to Respective VCC
  • Complies with CISPR22(EN55022) Class B Conducted and Radiated Emissions

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Tools & Models

EE-Sim: Design & Simulate MAXM17632

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Parameters

Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 4.5
VIN (V) (max) 36
VOUT1 (V) (min) 0.9
VOUT1 (V) (max) 12
IOUT1 (A) (max) 1
Switch Type Internal
Preset VOUT (V) -
Output Adjust. Method Resistor
Synchronous Switching? Yes
Power Good Signal Yes
# DC-DC Outputs 1
Switching Frequency (kHz) 400
Design Tools EE-Sim
Package/Pins EMGA/16
Budgetary
Price (See Notes)
$2.65 @1k

Key Features

  • Easy to Use
    • Wide 4.5V to 36V Input
    • Adjustable 0.9V to 12V Output (MAXM17632)
    • Fixed 3.3V and 5V output versions (MAXM17630 and MAXM17631)
    • 400kHz to 2.2MHz Adjustable Frequency with External Clock Synchronization
    • ±1.2% Feedback Accuracy
    • Up to 1A Output Current
    • Internally Compensated
    • All Ceramic Capacitors
  • High Efficiency
    • Selectable PWM-, PFM- or DCM-Mode of Operation
    • Auxiliary Bootstrap Supply (EXTVCC) for Improved Efficiency
    • Shutdown Current as Low as 2.8μA (typ)
  • Flexible Design
    • Adjustable and Monotonic Startup with Prebiased Output Voltage
    • Built-In Output-Voltage Monitoring with RESET Pin (Active Low)
    • Programmable EN/UVLO Threshold
  • Robust Operation
    • Hiccup-Mode Overload Protection
    • Overtemperature Protection
    • -40°C to +125°C Ambient Operating Temperature/ -40°C to +150°C Junction Temperature
  • Rugged
    • Complies with CISPR22(EN55022) Class B Conducted and Radiated Emissions
    • Passes Drop, Shock, and Vibration Standards: JESD22-B103, B104, B111

Applications/Uses

  • Industrial Control Power Supplies
  • General Purpose Point-of-Load
  • Distributed Supply Regulation
  • Base Station Power Supplies
  • High Voltage Single-Board Systems
  • Programmable Logic Controller

Description

The Himalaya series of voltage regulator ICs and power modules enable cooler, smaller, and simpler power supply solutions. The MAXM17630/MAXM17631/MAXM17632 are a family of high-efficiency, synchronous step-down DC-DC modules with integrated controller, MOSFETs, compensation components and inductor that operate over a wide input-voltage range. The modules operate from 4.5V to 36V and deliver up to 1A output current. The MAXM17630 and MAXM17631 are fixed 3.3V and 5V output modules, respectively. The MAXM17632 is an adjustable output (0.9V to 12V) module. The modules significantly reduce design complexity, manufacturing risks, and offer a true plug-and-play power-supply solution, reducing time-to-market. Built-in compensation across the output-voltage range eliminates the need for external compensation components.

These modules feature peak-current-mode control architecture. The modules can be operated in pulse-width modulation (PWM), or pulse-frequency modulation (PFM), or discontinuous-conduction mode (DCM) to enable high efficiency under light-load conditions.

The feedback-voltage regulation accuracy over -40°C to +125°C for the module family is ±1.2%. These power modules are available in a low profile, compact 16-pin, 3mm x 3mm x 1.75mm, uSLIC™ package. Simulation Models are available.

Simplified Block Diagram

MAXM17630, MAXM17631, MAXM17632: Typical Application Circuit MAXM17630, MAXM17631, MAXM17632: Typical Application Circuit Zoom icon

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