MAXM17545 Datasheet, PDF (1/19 Pages) Maxim Integrated Products – Offers Flexibility for Power-Design Optimization

MAXM17545
4.5V to 42V, 1.7A 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 MAXM17545 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 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 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
EN SYNC MODE RT
RT
8V to 42V
VIN
IN
OUT
VIN
VCC
OUT
OUT
OPTIONAL
VCC
OUT
VOUT
RESET
MAXM17545
OUT
OUT
COUT
OUT
RU
SS
EP3
CSS
FB
CF
EP1 SGND PGND PGND
RB
19-7444; Rev 0; 11/14