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ADI LT3748EMS#PBF
| Manufacturer | |
| MPN | LT3748EMS#PBF |
| LCSC Part # | C117158 |
| Packaging | MSOP-16 |
| Customer # | |
| Key Attributes | 100V Isolated Flyback Controller |
| Datasheet | ADI LT3748EMS#PBF |
| Alternative Parts | 1 |
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers | |
| Manufacturer | ADI | |
| Packaging | MSOP-16 | |
| Operating Temperature | -40℃~+125℃ | |
| Features | Adjustable soft-start;External compensation | |
| Number of Channels | 1 | |
| Topology | Flyback | |
| Operating Voltage | 5V~100V | |
| Switch tube (built-in/external) | External | |
| Output Type | Adjustable | |
| Function | Step-down type | |
| Quiescent Current | 1.3mA |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers | |
| Manufacturer | ADI | |
| Packaging | MSOP-16 | |
| Operating Temperature | -40℃~+125℃ | |
| Features | Adjustable soft-start;External compensation | |
| Number of Channels | 1 |
| Type | Description | |
|---|---|---|
| Topology | Flyback | |
| Operating Voltage | 5V~100V | |
| Switch tube (built-in/external) | External | |
| Output Type | Adjustable | |
| Function | Step-down type | |
| Quiescent Current | 1.3mA |
Introduction
The ±3748 is a switching regulator controller specifically designed for the isolated flyback topology and capable of high power. It drives a low side external N-channel power MOSFET from an internally regulated 7V supply. No third winding or opto-isolator is required for regulation as the part senses the isolated output voltage directly from the primary-side flyback waveform. The LT3748 utilizes boundary mode to provide a small magnetic solution without compromising load regulation. Operating frequency is set by load current and transformer magnetizing inductance. The gate drive of the LT3748 combined with a suitable external MOSFET allow it to deliver load power up to several tens of watts from input voltages as high as 100V. The LT3748 is available in a high voltage 16-lead MSOP package with four leads removed.
Features
- 5V to 100V Input Voltage Range
- 1.9A Average Gate Drive Source and Sink Current
- Boundary Mode Operation
- No Transformer Third Winding or Opto-Isolator Required for Regulation
- Primary-Side Winding Feedback Load Regulation
- VOUT Set with Two External Resistors
- INTVCC Pin for Control of Gate Driver Voltage
- Programmable Soft Start
- Programmable Undervoltage Lockout
- Available in MSOP Package
Applications
- Isolated Telecom Converters
- High Power Automotive Supplies
- Isolated Industrial Power Supplies
| Qty | Unit Price | Total Amount |
|---|---|---|
| 1+ | $ 5.8162 | $ 5.82 |
| 10+ | $ 5.6953 | $ 56.95 |
| 30+ | $ 5.6153 | $ 168.46 |
| 100+ | $ 5.5337 | $ 553.37 |
Standard Packaging37/Full Tube | ||
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers | |
| Manufacturer | ADI | |
| Packaging | MSOP-16 | |
| Operating Temperature | -40℃~+125℃ | |
| Features | Adjustable soft-start;External compensation | |
| Number of Channels | 1 | |
| Topology | Flyback | |
| Operating Voltage | 5V~100V | |
| Switch tube (built-in/external) | External | |
| Output Type | Adjustable | |
| Function | Step-down type | |
| Quiescent Current | 1.3mA |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers | |
| Manufacturer | ADI | |
| Packaging | MSOP-16 | |
| Operating Temperature | -40℃~+125℃ | |
| Features | Adjustable soft-start;External compensation | |
| Number of Channels | 1 |
| Type | Description | |
|---|---|---|
| Topology | Flyback | |
| Operating Voltage | 5V~100V | |
| Switch tube (built-in/external) | External | |
| Output Type | Adjustable | |
| Function | Step-down type | |
| Quiescent Current | 1.3mA |
Introduction
The ±3748 is a switching regulator controller specifically designed for the isolated flyback topology and capable of high power. It drives a low side external N-channel power MOSFET from an internally regulated 7V supply. No third winding or opto-isolator is required for regulation as the part senses the isolated output voltage directly from the primary-side flyback waveform. The LT3748 utilizes boundary mode to provide a small magnetic solution without compromising load regulation. Operating frequency is set by load current and transformer magnetizing inductance. The gate drive of the LT3748 combined with a suitable external MOSFET allow it to deliver load power up to several tens of watts from input voltages as high as 100V. The LT3748 is available in a high voltage 16-lead MSOP package with four leads removed.
Features
- 5V to 100V Input Voltage Range
- 1.9A Average Gate Drive Source and Sink Current
- Boundary Mode Operation
- No Transformer Third Winding or Opto-Isolator Required for Regulation
- Primary-Side Winding Feedback Load Regulation
- VOUT Set with Two External Resistors
- INTVCC Pin for Control of Gate Driver Voltage
- Programmable Soft Start
- Programmable Undervoltage Lockout
- Available in MSOP Package
Applications
- Isolated Telecom Converters
- High Power Automotive Supplies
- Isolated Industrial Power Supplies
C117158 EasyEDA Library
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 Compliant |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
| Type | Details |
|---|---|
| RoHS | ROHS3 Compliant |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Alternative Parts
| MPN | Manufacturer | Packaging | Availability | Unit Price | ||
|---|---|---|---|---|---|---|
| LT3748EMS#TRPBF | ADI | MSOP-16 | 0 | $ 10.4627 |