MAXM17544 Datasheet, PDF (1/19 Pages) Maxim Integrated Products – Integrated Compensation Components

MAXM17544
4.5V to 42V, 3.5A High-Efficiency, DC-DC Step-
Down Power Module with Integrated Inductor
General Description
The Himalaya series of voltage regulator ICs and power
modules enable cooler, smaller, and simpler power supply
solutions. The MAXM17544 is an easy-to-use, 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 3.5A 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 MAXM17544 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 and enhances efficiency. The package is
easily soldered onto a printed circuit board and suitable
for automated circuit board assembly. The device can
operate over the industrial temperature range from -40°C
to +125°C.
Applications
●● Industrial Power Supplies
●● Distributed Supply Regulation
●● FPGA and DSP Point-of-Load Regulator
●● Base Station Point-of-Load Regulator
●● HVAC and Building Control
Ordering Information appears at end of data sheet.
Features and Benefits
●● 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
• Autoswitch PWM, PFM, or DCM Current-Mode Control
• Optional Programmable EN/UVLO
Typical Application Circuit
4.5V TO 42V
C_IN
OPTIONAL
C_SS
R_T
C_OUT
R_U
R_B
19-7457; Rev 0; 12/14