LT8390EFE#TRPBF
Power Management
Technical Specifications
| Type | Description |
|---|---|
| Output Type | Adjustable |
| Function | Buck-Boost |
| Switching Freq Hz | 630 kHz |
| Channels | 1 |
| Quiescent Current | 2.1 mA |
| Synchronous Rectifier | Yes |
| Switch Tube (built-in/external) | External |
| Type | Description |
|---|---|
| Features | Adjustable current limiting;Hiccup current limiting;Protection latch;Adjustable soft-start;Load disconnect;Frequency synchronization;EMI optimization (spread spectrum);External compensation;Operating status indication;Overcurrent Protection |
| Topology | Buck-Boost |
| Supply Voltage | 4V~60V |
| Output Voltage | 0V~60V |
| Operating Temperature | -40°C~+125°C@(TJ) |
| Output Current | - |
| Package / Case | HTSSOP-28 |
Product Introduction
The LT8390 is a synchronous 4-switch buck-boost DC/DC controller that regulates output voltage, input or output current from an input voltage above, below, or equal to the output voltage. The proprietary peak-buck/peak-boost current mode control scheme allows adjustable and synchronizable 150kHz to 650kHz fixed frequency operation, or internal ±15% triangle spread spectrum frequency modulation for low EMI. With a 4V to 60V input voltage range, 0V to 60V output voltage capability, and seamless low noise transitions between operation regions, the LT8390 is ideal for voltage regulator, battery and supercapacitor charger applications in automotive, industrial, telecom, and even battery-powered systems.
The LT8390 provides input or output current monitor and power good flag. Fault protection is also provided to detect output short-circuit condition, during which the LT8390 retries, latches off, or keeps running.
Features
- 4-Switch Single Inductor Architecture Allows VIN Above, Below or Equal to VOUT
- Synchronous Switching: Up to 98% Efficiency
- Proprietary Peak-Buck Peak-Boost Current Mode
- Wide VIN Range: 4V to 60V
- ±1.5% Output Voltage Accuracy: 1V ≤ VOUT ≤ 60V
- ±3% Input or Output Current Accuracy with Monitor
- Spread Spectrum Frequency Modulation for Low EMI
- High Side PMOS Load Switch Driver
- Integrated Bootstrap Diodes
- No Top MOSFET Refresh Noise in Buck or Boost
- Adjustable and Synchronizable: 150kHz to 650kHz
- VOUT Disconnected from VIN During Shutdown
- Available in 28-Lead TSSOP with Exposed Pad and 28-Lead QFN (4mm×5mm)
Applications
- Automotive
- Industrial
- Telecom Systems
- High Power Battery-Powered System
Datasheet
Alternative Parts
Common LT8390EFE#TRPBF alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Sourcing Information
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