LD1085V50
ActiveFIXED LDO VOLTAGE REGULATOR, 8V TO 30V, 1.3V DROPOUT, 5VOUT, 3AOUT, TO-220-3 ROHS COMPLIANT: YES
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LD1085V50
ActiveFIXED LDO VOLTAGE REGULATOR, 8V TO 30V, 1.3V DROPOUT, 5VOUT, 3AOUT, TO-220-3 ROHS COMPLIANT: YES
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Technical Specifications
Parameters and characteristics for this part
| Specification | LD1085V50 |
|---|---|
| Current - Output | 3 A |
| Current - Quiescent (Iq) | 10 mA |
| Mounting Type | Through Hole |
| Number of Regulators | 1 |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 C |
| Output Configuration | Positive |
| Package / Case | TO-220-3 |
| Protection Features | Over Temperature, Over Current |
| PSRR | 72 dB |
| Supplier Device Package | TO-220 |
| Voltage - Input (Max) [Max] | 30 V |
| Voltage - Output (Min/Fixed) | 5 V |
| Voltage Dropout (Max) | 1.5 V |
| Part | Voltage Dropout (Max) | Current - Quiescent (Iq) | Mounting Type | Output Configuration | Supplier Device Package | PSRR | Operating Temperature [Max] | Operating Temperature [Min] | Protection Features | Number of Regulators | Package / Case | Voltage - Output (Min/Fixed) | Current - Output | Voltage - Input (Max) [Max] | Output Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 STMicroelectronics | 1.5 V | 10 mA | Surface Mount | Positive | D2PAK | 72 dB | 125 °C | -40 C | Over Current Over Temperature | 1 | D2PAK (2 Leads + Tab) TO-263-3 TO-263AB | 1.8 V | 3 A | 30 V | |
 STMicroelectronics | 1.5 V | 10 mA | Surface Mount | Positive | D2PAK-3 | 72 dB | 125 °C | -40 C | Over Current Over Temperature | 1 | D2PAK (3 Leads + Tab) TO-263-4 TO-263AA | 1.8 V | 3 A | 30 V | |
 STMicroelectronics | 1.5 V | 10 mA | Through Hole | Positive | TO-220 | 72 dB | 125 °C | -40 C | Over Current Over Temperature | 1 | TO-220-3 | 1.25 V | 3 A | 30 V | Adjustable |
 STMicroelectronics | 1.5 V | 10 mA | Surface Mount | Positive | D2PAK | 72 dB | 125 °C | -40 C | Over Current Over Temperature | 1 | D2PAK (2 Leads + Tab) TO-263-3 TO-263AB | 3.3 V | 3 A | 30 V | |
 STMicroelectronics | 1.5 V | 10 mA | Through Hole | Positive | TO-220FP | 72 dB | 125 °C | -40 C | Over Current Over Temperature | 1 | TO-220-3 Full Pack | 1.25 V | 3 A | 30 V | Adjustable |
STMicroelectronics | 1.5 V | 10 mA | Surface Mount | Positive | D2PAK-3 | 72 dB | 125 °C | -40 C | Over Current Over Temperature | 1 | D2PAK (3 Leads + Tab) TO-263-4 TO-263AA | 1.25 V | 3 A | 30 V | Adjustable |
STMicroelectronics | 1.5 V | 10 mA | Through Hole | Positive | TO-220 | 72 dB | 125 °C | -40 C | Over Current Over Temperature | 1 | TO-220-3 | 1.8 V | 3 A | 30 V | |
STMicroelectronics | 1.5 V | 10 mA | Surface Mount | Positive | D2PAK | 66 dB | 125 °C | -40 C | Over Current Over Temperature | 1 | D2PAK (2 Leads + Tab) TO-263-3 TO-263AB | 12 V | 3 A | 30 V | |
 STMicroelectronics | 1.5 V | 10 mA | Surface Mount | Positive | D2PAK-3 | 72 dB | 125 °C | -40 C | Over Current Over Temperature | 1 | D2PAK (3 Leads + Tab) TO-263-4 TO-263AA | 5 V | 3 A | 30 V | |
STMicroelectronics | 1.5 V | 10 mA | Through Hole | Positive | TO-220 | 72 dB | 125 °C | -40 C | Over Current Over Temperature | 1 | TO-220-3 | 5 V | 3 A | 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 | N/A | 858 | $ 1.59 | |
| Tube | 1 | $ 1.77 | ||
| 10 | $ 1.59 | |||
| 50 | $ 1.50 | |||
| 100 | $ 1.28 | |||
| 250 | $ 1.20 | |||
| 500 | $ 1.05 | |||
| 1000 | $ 0.87 | |||
| 2500 | $ 0.81 | |||
| 5000 | $ 0.78 | |||
Description
General part information
LD1085 Series
The LD1085 is a low drop voltage regulator able to provide up to 3 A of output current. Dropout is guaranteed at a maximum of 1.2 V at the maximum output current, decreasing at lower loads. The LD1085 is pin-to-pin compatible with the older 3-terminal adjustable regulators, but offers better performance in terms of drop and output tolerance.
Unlike PNP regulators, where a part of the output current is wasted as quiescent current, the LD1085 quiescent current flows into the load, thus increase efficiency. Only a 10 μF minimum capacitor is need for stability.
The device is supplied in TO-220, TO-220FP, D²PAK and D²PAK/A packages. On-chip trimming allows the regulator to reach a very tight output voltage tolerance, within ± 1% at 25 °C.
Documents
Technical documentation and resources