48Vin, 300W 1/8brick Digital Module with GaN FET Reference Design


Design files


The PMP4435 is a DC-DC isolated digital module with GaN mosfet reference design targeted for industrial and telecom applications. The DC input range is 36V-60V, with 12V typical and the output is 12V/5A. An digital controller UCD3138A is used in the design. The efficiency is up to 95.8% with good thermal performance.

  • High Efficiency up to 95.8%
  • LM5113+ GaN  Mosfets
  • Protection feature OCP, OVP
  • Full Digital Control for HSFB DC-DC
  • Good thermal performance with Full Load
  • Full comply with the telecom customer requirements
Output voltage options PMP4435.1 PMP4435.2 PMP4435.3 PMP4435.4 PMP4435.5 PMP4435.6
Vin (Min) (V) 36 36 36 7 7 4
Vin (Max) (V) 60 60 60 14 14 14
Vout (Nom) (V) 12 10 10 5 5 3.3
Iout (Max) (A) 25 .25 .25 .5 .5 .5
Output Power (W) 300 2.5 2.5 2.5 2.5 1.65
Isolated/Non-Isolated Isolated Isolated Isolated Non-Isolated Isolated Non-Isolated
Input Type DC DC DC DC DC DC
Topology Full Bridge- Hard Switched FlyBuck FlyBuck Buck- Synchronous Buck- Synchronous Buck- Synchronous
?? View video with transcript Video

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.


Test results for the reference design, including efficiency graphs, test prerequisites and more


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRHW6.ZIP (1498 K)

Files used for 3D models or 2D drawings of IC components

TIDRHW5.PDF (14242 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

AC/DC & DC/DC controllers (external FET)

UCD3138064AHighly Integrated Digital Controller for Isolated Power

Data sheet: PDF | HTML
AC/DC & DC/DC controllers (external FET)

UCD3138AUCD3138A Highly Integrated Digital Controller for Isolated Power

Data sheet: PDF | HTML
AC/DC & DC/DC converters (integrated FET)

LM349277.5-100V Wide Vin, 600mA Integrated Secondary Bias Regulator for Isolated DC/DC Converters

Data sheet: PDF | HTML
Analog temperature sensors

LM60±2°C analog output temperature sensor with 6.25mV /°C gain and TO-92 option

Data sheet: PDF | HTML
Digital isolators

ISO7420Dual-channel, 2/0, 1-Mbps digital isolator

Data sheet: PDF | HTML
Half-bridge drivers

LM51131.2-A/5-A, 90-V half bridge gate driver for GaNFET

Data sheet: PDF | HTML
High-speed op amps (GBW ≥ 50 MHz)

OPA3652.2V, 50MHz, Low-Noise, Single-Supply Rail-to-Rail Operational Amplifier

Data sheet: PDF | HTML
Power modules (integrated inductor)

LMZ217013V to 17V, 1A Step-Down DC/DC Power Module in 3.5mm × 3.5mm Package

Data sheet: PDF | HTML

Technical documentation

= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Test report PMP4435 Test Results Oct. 01, 2015

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​