Power Management
Switching Regulator
Inverting Regulators
Power Management
Switching Regulator
LCD/CCD/OLED Bias
Power Management
Switching Regulator
SEPIC Regulators
Power Management
Switching Regulator
Step-Up (Boost) Regulators
Internal Power Switch Boost
Power Management
Switching Regulator
Step-Up (Boost) Regulators
Multiple Output Boost
Power Management
PMIC & Multifunction
Multi-Topology DC/DC
LT8582 - Dual 3A Boost/Inverting/SEPIC DC/DC Converter with Fault Protection
Features
- Dual 42V, 3A Combined Power Switch
- Master/Slave (1.7A/1.3A) Switch Design
- Wide Input Range: 2.5V to 22V Operating, 40V Maximum Transient
- Power Good Pin for Event Based Sequencing
- Switching Frequency Up to 2.5MHz
- Each Channel Easily Configurable as a Boost, SEPIC, Inverting or Flyback Converter
- Low VCESAT Switch: 270mV at 2.75A (Typical)
- Can be Synchronized to an External Clock
- Output Short-Circuit Protection
- High Gain SHDN Pin Accepts Slowly Varying Input Signals
- 24-Pin 7mm × 4mm DFN Package
Typical Application
Description
The LT®8582 is a dual independent channel PWM DC/DC converter with a power good pin and built-in fault protection to help guard against input overvoltage and overtemperature conditions. Each channel consists of a 42V master switch and a 42V slave switch that can be tied together for a total current limit of 3A.
The LT8582 is ideal for many local power supply designs. Each channel can be easily configured in boost, SEPIC, inverting, or flyback configurations. Together, the two channels can produce a 12V and a –12V output with 14.4W of combined output power from a 5V input. In addition, the LT8582’s slave switch allows the part to be configured in high voltage, high power charge pump topologies that are more efficient and require fewer components than traditional circuits.
The LT8582 also features innovative SHDN pin circuitry that allows for slowly varying input signals and an adjustable undervoltage lockout function. Additional features such as output short protection, frequency foldback and soft-start are integrated. The LT8582 is available in a 24-pin 7mm × 4mm DFN package.
Packaging
For complete and up to date package information and drawings, please refer to our packaging page
DFN-24
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 |
|---|---|---|---|---|---|---|
| LT8582EDKD#PBF | DFN | 24 | E | $5.36 | $3.75 | View |
| LT8582EDKD#TRPBF | DFN | 24 | E | $3.81 | View | |
| LT8582IDKD#PBF | DFN | 24 | I | $5.90 | $4.13 | View |
| LT8582IDKD#TRPBF | DFN | 24 | I | $4.19 | 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 |
|---|---|---|---|
| DC1734A | LT8582IDKD Demo Board I Dual 3A Boost/Inverting/SE | $225.00 | |
| Buy Now | |||
Applications
- Local Power Supply
- Vacuum Fluorescent Display (VFD) Bias Supplies
- TFT-LCD Bias Supplies
- Automotive Engine Control Unit (ECU) Power
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Simulate
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Related models available in LTspice IV
LT8582
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.
