LT1085IM#TRPBF
Active7.5A, 5A, 3A LOW DROPOUT POSITIVE ADJUSTABLE REGULATORS
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LT1085IM#TRPBF
Active7.5A, 5A, 3A LOW DROPOUT POSITIVE ADJUSTABLE REGULATORS
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Technical Specifications
Parameters and characteristics for this part
| Specification | LT1085IM#TRPBF |
|---|---|
| Current - Output | 3 A |
| Mounting Type | Surface Mount |
| Number of Regulators | 1 |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Package / Case | TO-263AA, D2PAK (3 Leads + Tab), TO-263-4 |
| Protection Features | Over Temperature |
| PSRR | 75 dB |
| Supplier Device Package | DDPAK-3 |
| Voltage - Input (Max) [Max] | 30 V |
| Voltage - Output (Min/Fixed) | 1.25 V |
| Voltage Dropout (Max) [Max] | 1.5 V |
LT1085-Fixed Series
3A, 5A, 7.5A Low Dropout Positive Fixed Regulators
| Part | Mounting Type | Package / Case | Current - Output | Number of Regulators | Operating Temperature [Min] | Operating Temperature [Max] | Voltage Dropout (Max) [Max] | Output Configuration | PSRR | Protection Features | Output Type | Supplier Device Package | Voltage - Output (Min/Fixed) | Voltage - Input (Max) [Max] | Output Type | Current - Quiescent (Iq) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Analog Devices | Through Hole | TO-204AA TO-3 | 3 A | 1 | 0 °C | 150 °C | ||||||||||
Analog Devices | Surface Mount | D2PAK (3 Leads + Tab) TO-263-4 TO-263AA | 3 A | 1 | -40 °C | 125 °C | 1.5 V | Positive | 75 dB | Over Temperature | Adjustable | DDPAK-3 | 1.25 V | 30 V | ||
Analog Devices | Surface Mount | D2PAK (3 Leads + Tab) TO-263-4 TO-263AA | 3 A | 1 | 0 °C | 125 °C | 1.5 V | Positive | 75 dB | Over Temperature | Adjustable | DDPAK-3 | 1.25 V | 30 V | ||
 Analog Devices | Through Hole | TO-220-3 | 3 A | 1 | 0 °C | 125 °C | 1.5 V | Positive | 60 dB | Over Temperature | TO-220-3 | 12 V | 25 V | 1.81 mOhm | 10 mA | |
Analog Devices | Through Hole | TO-220-3 | 3 A | 1 | 0 °C | 125 °C | 1.5 V | Positive | 68 dB | Over Temperature | TO-220-3 | 5 V | 20 V | 1.81 mOhm | 10 mA | |
 Analog Devices | Through Hole | TO-220-3 | 3 A | 1 | -40 °C | 125 °C | 1.5 V | Positive | 75 dB | Over Temperature | Adjustable | TO-220-3 | 1.25 V | 30 V | ||
Analog Devices | Surface Mount | D2PAK (3 Leads + Tab) TO-263-4 TO-263AA | 3 A | 1 | 0 °C | 125 °C | 1.5 V | Positive | 72 dB | Over Temperature | DDPAK-3 | 3.3 V | 20 V | 1.81 mOhm | 10 mA | |
Analog Devices | Through Hole | TO-220-3 | 3 A | 1 | 0 °C | 125 °C | 1.5 V | Positive | 72 dB | Over Temperature | TO-220-3 | 3.3 V | 20 V | 1.81 mOhm | 10 mA | |
Analog Devices | Surface Mount | D2PAK (3 Leads + Tab) TO-263-4 TO-263AA | DDPAK-3 | |||||||||||||
Analog Devices | Surface Mount | D2PAK (3 Leads + Tab) TO-263-4 TO-263AA | 3 A | 1 | 0 °C | 125 °C | 1.5 V | Positive | 75 dB | Over Temperature | Adjustable | DDPAK-3 | 1.25 V | 30 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 14.86 | |
| 10 | $ 10.60 | |||
| 25 | $ 9.50 | |||
| 100 | $ 8.27 | |||
| 250 | $ 7.68 | |||
| Digi-Reel® | 1 | $ 14.86 | ||
| 10 | $ 10.60 | |||
| 25 | $ 9.50 | |||
| 100 | $ 8.27 | |||
| 250 | $ 7.68 | |||
| Tape & Reel (TR) | 750 | $ 7.17 | ||
Description
General part information
LT1085-Fixed Series
The LT1083 series of positive adjustable regulators are designed to provide 3A, 5A and 7.5A with higher efficiency than currently available devices. All internal circuitry is designed to operate down to 1V input to output differential and the dropout voltage is fully specified as a function of load current. Dropout is guaranteed at a maximum of 1.5V at maximum output current, decreasing at lower load currents. On-chip trimming adjusts the output voltage to 1%. Current limit is also trimmed, minimizing the stress on both the regulator and power source circuitry under overload conditions.The LT1083 series devices are pin compatible with older three-terminal regulators. A 10µF output capacitor is required on these new devices; however, this is usually included in most regulator designs.Unlike PNP regulators, where up to 10% of the output current is wasted as quiescent current, the LT1083 quiescent current flows into the load, increasing efficiency.ApplicationsHigh Efficiency Linear RegulatorsPost Regulators for Switching SuppliesConstant Current RegulatorsBattery Chargers
Documents
Technical documentation and resources