LTM8045 - Inverting or SEPIC μModule (Power Module) DC/DC Converter with Up to 700mA Output Current
Features
- SEPIC or Inverting Topology
- Wide Input Voltage Range: 2.8V to 18V
- Up to 700mA Output Current at VIN = 12V, VOUT = 2.5V or –2.5V
- Up to 375mA Output Current at VIN = 12V, VOUT =15V or –15V
- 2.5V to 15V or –2.5V to –15V Output Voltage
- Selectable Switching Frequency: 200kHz to 2MHz
- Programmable Soft-Start
- User Configurable Undervoltage Lockout
- 6.25mm × 11.25mm × 4.92mm BGA Package
Typical Application
Description
The LTM®8045 is a μModule® (power module) DC/DC converter that can be configured as a SEPIC or inverting converter by simply grounding the appropriate output rail. In a SEPIC configuration the regulated output voltage can be above, below or equal to the input voltage. The LTM8045 includes power devices, inductors, control circuitry and passive components. All that is needed to complete the design are input and output capacitors, and small resistors to set the output voltage and switching frequency. Other components may be used to control the soft-start and undervoltage lockout.
The LTM8045 is packaged in a compact (6.25mm × 11.25mm) overmolded ball grid array (BGA) package suitable for automated assembly by standard surface mount equipment. The LTM8045 is available with SnPb (BGA) or RoHS compliant terminal finish.
Packaging
CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.
For complete and up to date package information and drawings, please refer to our packaging page
| Part Number | Package | Code | Temp | Package Drawing |
RoHS |
|---|---|---|---|---|---|
| LTM8045EY#PBF | 11.25mm x 6.25mm x 4.92mm BGA | BGA | E | 05-08-1867 | Yes |
| LTM8045IY | 11.25mm x 6.25mm x 4.92mm BGA | BGA | I | 05-08-1867 | No |
| LTM8045IY#PBF | 11.25mm x 6.25mm x 4.92mm BGA | BGA | I | 05-08-1867 | Yes |
| LTM8045MPY | 11.25mm x 6.25mm x 4.92mm BGA | BGA | MP | 05-08-1867 | No |
| LTM8045MPY#PBF | 11.25mm x 6.25mm x 4.92mm BGA | BGA | MP | 05-08-1867 | Yes |
Order Info
- Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
- 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 | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LTM8045EY#PBF | 11.25mm x 6.25mm x 4.92mm BGA | E | $9.96 | $6.97 | Yes | |
| LTM8045IY | 11.25mm x 6.25mm x 4.92mm BGA | I | $15.53 | $10.87 | No | |
| LTM8045IY#PBF | 11.25mm x 6.25mm x 4.92mm BGA | I | $10.96 | $7.67 | Yes | |
| LTM8045MPY | 11.25mm x 6.25mm x 4.92mm BGA | MP | $24.52 | $17.17 | No | |
| LTM8045MPY#PBF | 11.25mm x 6.25mm x 4.92mm BGA | MP | $19.96 | $13.97 | Yes | |
| 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 |
|---|---|---|---|
| DC1533A | LTM8045 Demo Board | Inverting/SEPIC µModule Converter, 2.8V ≤ VIN ≤ 18V, Vout = 5V or -5V @ Up to 700mA | $65.00 | |
| Buy Now | |||
Applications
- Battery Powered Regulator
- Local Negative Voltage Regulator
- Low Noise Amplifier Power
People Who Viewed This Product Also Viewed
- LTM4609 - 36VIN, 34VOUT High Efficiency Buck-Boost DC/DC μModule (Power Module) Regulator
- LT8705 - 80V VIN and VOUT Synchronous 4-Switch Buck- Boost DC/DC Controller
- LT3080 - Adjustable 1.1A Single Resistor Low Dropout Regulator
- LT8471 - Dual Multitopology DC/DC Converters with 2A Switches and Synchronization
- LT1763 - 500mA, Low Noise, LDO Micropower Regulators
- LTC3115-1 - 40V, 2A Synchronous Buck-Boost DC/DC Converter
- LT3580 - Boost/Inverting DC/DC Converter with 2A Switch, Soft-Start, and Synchronization
- LT4320/LT4320-1 - Ideal Diode Bridge Controller
- LTC4364 - Surge Stopper with Ideal Diode
- LTM4607 - 36Vin, 24Vout High Efficiency Buck-Boost DC/DC μModule (Power Module)
Product Notifications
Please login to your MyLinear account for notifications of datasheet updates, new document releases and LTspice model announcements for your favorite products. If you do not have a MyLinear account you may Sign Up Now.
Forgot your password? Click here.
Need help? Email mylinear@linear.com with questions and comments.
Design Tools
LTspice
LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice
To launch a ready to run LTspice demonstration circuit for this part:
- Step 1: If you have not installed LTspice on this computer, download and install LTspice
- Step 2: Once LTspice is installed, click on the link(s) below to launch the simulation
- Step 3: If LTspice does not automatically open after clicking the link above, you can instead run the simulation by right clicking on the link and selecting "Save Target As." After saving the file to your computer, start LTspice and open the demonstration circuit by selecting 'Open' from the 'File' menu
To explore other ready to run LTspice demonstration circuits, please visit our Demo Circuits Collection.
Models for the following parts are available in LTspice:
LTM8045
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.
