LTM8033 - Ultralow Noise EMC 36VIN, 3A DC/DC μModule Regulator
Features
- Complete Step-Down Switch Mode Power Supply
- Wide Input Voltage Range: 3.6V to 36V
- 3A Output Current
- 0.8V to 24V Output Voltage
- EN55022 Class B Compliant
- Current Share Multiple LTM8033 Regulators for More Than 3A Output
- Selectable Switching Frequency: 200kHz to 2.4MHz
- Current Mode Control
- e4) RoHS Compliant Package with Gold Pad Finish
- Programmable Soft-Start
- Compact Package (11.25mm × 15mm × 4.32mm) Surface Mount LGA
Typical Application
Description
The LTM8033 is an electromagnetic compatible (EMC) 36V, 3A DC/DC μModule buck converter designed to meet the radiated emissions requirements of EN55022. Conducted emission requirements can be met by adding standard filter components. Included in the package are the switching controller, power switches, inductor, filters and all support components. Operating over an input voltage range of 3.6V to 36V, the LTM8033 supports an output voltage range of 0.8V to 24V, and a switching frequency range of 200kHz to 2.4MHz, each set by a single resistor. Only the bulk input and output filter capacitors are needed to finish the design.
The LTM8033 is packaged in a thermally enhanced, compact (11.25mm × 15mm × 4.32mm) overmolded land grid array (LGA) package suitable for automated assembly by standard surface mount equipment.
Packaging
CAD Symbols and Footprints: The file below contains the schematic symbol and PCB footprint which can be converted for use with most popular CAD tools. Download and install the free Ultra Librarian Reader (72Mb) to convert the .bxl file to the format appropriate for your CAD tool
For complete and up to date package information and drawings, please refer to our packaging page
11.25mm x 15mm x 4.32mm LGA
Order Info
- Part numbers ending in PBF are lead free. Please contact LTC marketing for information on lead based finish parts.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) | Price (1k)* | RoHS Data |
|---|---|---|---|---|---|---|
| LTM8033EV#PBF | 76 | E | $17.07 | $11.95 | View | |
| LTM8033IV#PBF | 76 | I | $18.64 | $13.05 | View | |
| Buy Now • Request Samples | ||||||
Demo Boards
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC1623A | LTM8033EV Demo Board | Ultralow EMI 36Vin, 3A Step Down uModule Regulator | $65.00 | |
| Buy Now | |||
Applications
- Automotive Battery Regulation
- Power for Portable Products
- Distributed Supply Regulation
- Industrial Supplies
- Wall Transformer Regulation
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Simulate
LTspice IV is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. To download LTspice IV and other FREE simulation tools, please visit our Design Simulation page.
To launch a ready to run LTspice demonstration circuit for this part:
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Related models available in LTspice IV
LTM8033
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.

