The LT1963AES8#PBF is a 1.5A low-dropout (LDO) linear regulator from Analog Devices, designed to deliver low-noise, fast-transient-response power in sensitive analog and mixed-signal circuits. It provides an adjustable output voltage set via external resistors with a precision 1.21 V internal reference, and maintains tight regulation with a low dropout voltage even at full rated load current. The device is stable with low-ESR ceramic output capacitors, typically as small as 10 µF, enabling compact board-level power supplies and helping to minimize output noise without requiring large bulk capacitance.
This regulator is widely deployed in precision instrumentation, data-acquisition systems, RF and microwave subsystems, avionics, defense electronics, and medical equipment, where a clean supply rail directly influences signal integrity and measurement accuracy. It commonly functions as a post-regulator after switching converters to attenuate ripple, or as a point-of-load regulator in high-reliability industrial and aerospace platforms. The #PBF suffix signifies lead-free, RoHS-compliant terminations, and the ES8 8-lead SOIC package is rated for the 0 °C to +125 °C operating temperature range, suiting extended-commercial and industrial environments. As a member of Analog Devices’ long-lifecycle linear-regulator portfolio, the LT1963A family carries low obsolescence risk, supporting programs with extended qualification periods and sustained production timelines.
| Attribute | Value |
|---|---|
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 20V |
| Voltage - Output (Min/Fixed) | 1.21V |
| Voltage - Output (Max) | 20V |
| Voltage Dropout (Max) | 0.55V @ 1.5A |
| Current - Output | 1.5A |
| Current - Quiescent (Iq) | 1.5 mA |
| Current - Supply (Max) | 120 mA |
| PSRR | 63dB (120Hz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature, Reverse Polarity |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154in, 3.90mm Width) |
| Supplier Device Package | 8-SO |
Download the current available datasheet for LT1963AES8#PBF.
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