DocumentationDatasheet
Design Note
Reliability Data
LT Journal
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Features
- Generates a Regulated Auxiliary Output in Isolated DC/DC Converters
- 0.8V ±1.5% Accurate Voltage Reference
- Dual N-Channel MOSFET Synchronous Drivers
- High Switching Frequency: Up to 500kHz
- Programmable Current Limit Protection
- Programmable Soft-Start
- Automatic Frequency Synchronization
- Small 16-Pin Thermally Enhanced TSSOP Package
Typical Application
Description
The LT3710 is a high efficiency step-down switching regulator intended for auxiliary outputs in single secondary winding, multiple output power supplies.
The LT3710 drives dual synchronous N-channel MOSFETs and achieves high efficiency. With leading edge modulation, it operates well with either primary side peak current or voltage mode control. It is synchronized to the falling edge of the transformer secondary winding and can be used in both single-ended and double-ended isolated power converter topologies. A high speed operational amplifier is incorporated to achieve optimum compensation and fast transient response. A user selectable discontinuous conduction mode improves light load efficiency.
The LT3710 is available in a thermally enhanced TSSOP-16 exposed pad power package.
TSSOP-16
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LT3710EFE#PBF | TSSOP | 16 | E | $5.63 | $3.95 |
| LT3710EFE#TRPBF | TSSOP | 16 | E | $4.07 | |
| LT3710EFE | TSSOP | 16 | E | $11.26 | $7.90 |
| LT3710EFE#TR | TSSOP | 16 | E | $8.14 |
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 |
|---|---|---|---|
| DC448A | LT3710EFE LT3781EG LTC1698EGN | Dual Output Isolated Power Supply, 36V to 72V Input, 3.3Vout @ 10A, 1.8/2.5Vout @ 10A | Contact Factory |