LTC3803HS6-3#TRPBF
ActiveCONSTANT FREQUENCY CURRENT MODE FLYBACK DC/DC CONTROLLER IN THINSOT
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LTC3803HS6-3#TRPBF
ActiveCONSTANT FREQUENCY CURRENT MODE FLYBACK DC/DC CONTROLLER IN THINSOT
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Technical Specifications
Parameters and characteristics for this part
| Specification | LTC3803HS6-3#TRPBF |
|---|---|
| Clock Sync | False |
| Control Features | Enable, Current Limit |
| Duty Cycle (Max) [Max] | 80 % |
| Frequency - Switching | 300 kHz |
| Function | Step-Up/Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Isolation Capable, Positive |
| Output Phases | 1 |
| Output Type | Transistor Driver |
| Package / Case | SOT-23-6 Thin, TSOT-23-6 |
| Supplier Device Package | TSOT-23-6 |
| Synchronous Rectifier | False |
| Topology | Flyback |
| Voltage - Supply (Vcc/Vdd) [Max] | 8 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 5.7 V |
LTC3803-3 Series
Constant Frequency Current Mode Flyback DC/DC Controller in ThinSOT
| Part | Package / Case | Number of Outputs | Operating Temperature [Min] | Operating Temperature [Max] | Clock Sync | Frequency - Switching | Duty Cycle (Max) [Max] | Function | Synchronous Rectifier | Mounting Type | Output Configuration | Output Type | Output Phases | Control Features | Supplier Device Package | Topology | Voltage - Supply (Vcc/Vdd) [Max] | Voltage - Supply (Vcc/Vdd) [Min] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Analog Devices Inc./Maxim Integrated | SOT-23-6 Thin TSOT-23-6 | 1 | -40 °C | 150 °C | 300 kHz | 80 % | Step-Up/Step-Down | Surface Mount | Isolation Capable Positive | Transistor Driver | 1 | Current Limit Enable | TSOT-23-6 | Flyback | 8 V | 5.7 V | ||
Analog Devices Inc./Maxim Integrated | SOT-23-6 Thin TSOT-23-6 | 1 | -40 C | 125 °C | 300 kHz | 80 % | Step-Up/Step-Down | Surface Mount | Isolation Capable Positive | Transistor Driver | 1 | Current Limit Enable | TSOT-23-6 | Flyback | 8 V | 5.7 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | Updated |
|---|---|---|---|---|
| Digikey | N/A | 0 | $ 2.48 | 1m+ |
Description
General part information
LTC3803-3 Series
The LTC3803-3 is a constant frequency current mode flyback controller optimized for driving N-channel MOSFETs in high input voltage applications. Constant frequency operation is maintained down to very light loads, resulting in less low frequency noise generation over a wide range of load currents. Slope compensation can be programmed with an external resistor.The LTC3803-3 provides ±1.5% output voltage accuracy and consumes only 240μA of quiescent current. Ground referenced current sensing allows LTC3803-3-based converters to accept input supplies beyond the LTC3803-3’s absolute maximum VCC. A micropower hysteretic start-up feature allows efficient operation at high input voltages. For simplicity, the LTC3803-3 can also be powered from a high VINthrough a resistor, due to its internal shunt regulator. An internal undervoltage lockout shuts down the LTC3803-3 when the input voltage is too low to provide sufficient gate drive to the external MOSFET.The LTC3803-3 is available in a low profile (1mm) 6-lead SOT-23 (ThinSOT™) package.Turn On VoltageFrequencyLTC38038.7V200kHzLTC3803-38.7V300kHzLTC3803-54.8V200kHzApplicationsTelecom Power Supplies42V and 12V Automotive Power SuppliesAuxiliary/Housekeeping Power SuppliesPower over Ethernet Powered Devices
Documents
Technical documentation and resources