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4.5V to 42V, 1.7A High-Efficiency, DC-DC Step-Down Power Module with Integrated Inductor

Highly Integrated DC-DC Power Module Enables Ease of Design and Small-Solution Footprint

Product Details

Key Features

Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 4.5
VIN (V) (max) 42
VOUT1 (V) (min) 0.9
VOUT1 (V) (max) 12
IOUT1 (A) (max) 1.7
Switch Type Internal
Preset VOUT (V) 3.3
Output Adjust. Method Preset
Resistor
Synchronous Switching? Yes
Power Good Signal Yes
# DC-DC Outputs 1
Switching Frequency (kHz) 500
2200
Design Tools EE-Sim
Package/Pins LGA MODULE/32
Budgetary
Price (See Notes)
8.76
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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) 42
VOUT1 (V) (min) 0.9
VOUT1 (V) (max) 12
IOUT1 (A) (max) 1.7
Switch Type Internal
Preset VOUT (V) 3.3
Output Adjust. Method Preset
Resistor
Synchronous Switching? Yes
Power Good Signal Yes
# DC-DC Outputs 1
Switching Frequency (kHz) 500
2200
Design Tools generateDesignEESIMUrl('http://maxim.transim.com/pwm2/designreq/Index?partId=6037', '')
Package/Pins LGA MODULE/32
Budgetary
Price (See Notes)
8.76

Key Features

  • Reduces Design Complexity, Manufacturing Risks, and Time-to-Market
    • Integrated Switching Power Supply Controller and Dual-MOSFET Power Switches
    • Integrated Inductor
    • Integrated Compensation Components
    • Integrated Thermal-Fault Protection
    • Integrated Peak Current Limit
  • Saves Board Space in Space-Constrained Applications
    • Complete Integrated Step-Down Power Supply in a Single Package
    • Small Profile 9mm x 15mm x 2.8mm SiP Package
    • Simplified PCB Design with Minimal External BOM Components
  • Offers Flexibility for Power-Design Optimization
    • Wide Input Voltage Range from 4.5V to 42V
    • Output-Voltage Adjustable Range from 0.9V to 12V
    • Adjustable Frequency with External Frequency Synchronization (100kHz to 1.8MHz)
    • Soft-Start Programmable
    • PWM, PFM, or DCM Current-Mode Control
    • Optional Programmable EN/UVLO
  • Operates Reliably in Adverse Industrial Environments
    • Integrated Thermal Fault Protection
    • Hiccup Mode Overload Protection
    • Active-Low RESET/ Output-Voltage Monitoring
    • Wide Industrial Ambient Operating Temperature Range (-40°C to +125°C)/ Junction Temperature Range (-40°C to +150°C)
    • Complies with CISPR22(EN55022) Class B Conducted and Radiated Emissions

Applications/Uses

  • Base Station Point-of-Load Regulator
  • Distributed Supply Regulation
  • FPGA and DSP Point-of-Load Regulator
  • HVAC and Building Control
  • Industrial Power Supplies

Description

The Himalaya series of voltage regulator ICs and power modules, and chargers enable cooler, smaller, and simpler power supply solutions. The MAXM17545 is an easy-to-use, Himalaya step-down power module that combines a switching power supply controller, dual n-channel MOSFET power switches, fully shielded inductor, and the compensation components in a low-profile, thermally-efficient, system-in-package (SiP). The device operates over a wide input voltage range of 4.5V to 42V and delivers up to 1.7A continuous output current with excellent line and load regulation over an output voltage range of 0.9V to 12V. The device only requires five external components to complete the total power solution. The high level of integration significantly reduces design complexity, manufacturing risks, and offers a true plug-and-play power supply solution, reducing time-to-market.

The device can be operated in the pulse-width modulation (PWM), pulse-frequency modulation (PFM), or discontinuous conduction mode (DCM) control schemes.

The MAXM17545 is available in a low-profile, highly thermal-emissive, compact, 29-pin 9mm x 15mm x 2.8mm SiP package that reduces power dissipation in the package, while enhancing efficiency. The package is easily soldered onto a printed circuit board and suitable for automated circuit board assembly. The device can operate over a wide industrial temperature range from -40°C to +125°C.

Simplified Block Diagram

MAXM17545: Typical Application Circuit MAXM17545: Typical Application Circuit Zoom icon

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 .