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4.5V to 36V, 2A Himalaya uSLIC Step-Down Power Modules

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

Product Details

Key Features

Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 4.5
VIN (V) (max) 36
VOUT1 (V) (min) 3.3
VOUT1 (V) (max) 3.3
IOUT1 (A) (max) 2
Switch Type Internal
Preset VOUT (V) 3.3
Output Adjust. Method Preset
Synchronous Switching? Yes
Power Good Signal Yes
# DC-DC Outputs 1
Switching Frequency (kHz) 400
Design Tools EE-Sim
Package/Pins EMGA/24
Budgetary
Price (See Notes)
4.07
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Simplified Block Diagram

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Parameters

Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 4.5
VIN (V) (max) 36
VOUT1 (V) (min) 3.3
VOUT1 (V) (max) 3.3
IOUT1 (A) (max) 2
Switch Type Internal
Preset VOUT (V) 3.3
Output Adjust. Method Preset
Synchronous Switching? Yes
Power Good Signal Yes
# DC-DC Outputs 1
Switching Frequency (kHz) 400
Design Tools generateDesignEESIMUrl('http://maxim.transim.com/pwm2/designreq/Index?partId=13302', '')
Package/Pins EMGA/24
Budgetary
Price (See Notes)
4.07

Key Features

  • Easy to Use
    • Wide 4.5V to 36V Input
    • Adjustable 0.9V to 12V Output (MAXM17635)
    • Fixed 3.3V and 5V Output Versions (MAXM17633 and MAXM17634)
    • 400kHz to 2.2MHz Adjustable Frequency with External Clock Synchronization
    • ±1.2% Feedback Accuracy
    • Up to 2A Output Current
    • Internally Compensated
    • All Ceramic Capacitors
  • High Efficiency
    • Selectable PWM, PFM, or DCM Mode of Operation
    • Shutdown Current as Low as 2.8µA (typ)
  • Flexible Design
    • Programmable Soft-Start and Prebias Startup
    • Open-Drain Power Good Output (Active Low RESET Pin)
    • Programmable EN/UVLO Threshold
  • Robust Operation
    • Hiccup Overcurrent Protection
    • Overtemperature Protection
    • -40°C to +125°C Ambient Operating Temperature/-40°C to +150C 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
  • Programmable Logic Controller
  • High Voltage Single-Board Systems

Description

The Himalaya series of voltage regulator ICs and power modules enable cooler, smaller, and simpler power supply solutions. The MAXM17633, MAXM17634, and MAXM17635 are a family of high-frequency synchronous step-down DC-DC converter 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 input and deliver up to 2A output current. MAXM17633 and MAXM17634 are fixed 3.3V and 5V output modules, respectively. The MAXM17635 is an adjustable-output voltage (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.

The MAXM17633/MAXM17634/MAXM17635 modules employ peak-current-mode control architecture. To reduce input inrush current, the devices offer a programmable soft-start time.

The MAXM17633/MAXM17634/MAXM17635 modules are available in a low profile, compact 24-pin, 4mm x 4mm x 1.75mm, uSLIC™ package.

Simplified Block Diagram

MAXM17633, MAXM17634, MAXM17635: Typical Application Circuit MAXM17633, MAXM17634, MAXM17635: 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 .