Product Details
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Product Overview FAN1112 is a 1.2V low-dropout three-terminal regulator with an output current capability of 1A. The device is optimized for low-voltage applications where transient response and minimum input voltage are critical. The current limit is fine-tuned to ensure a specified output current and a controlled short-circuit current. The on-chip thermal limit function prevents excessive junction temperatures due to a combination of overload and ambient temperature. Unlike PNP-type regulators, where up to 10% of the output current is wasted as quiescent current, FAN1112 quiescent current flows into the load, increasing efficiency. FAN1112 regulators are available in industry-standard SOT-223 and TO-252 (DPAK) power packages. |
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Product Features Low pressure differential Load adjustment rate: 0.05% typical Fine-tune the current limit On-chip heat limitation Standard SOT-223 and TO-252 packages Fixed 1.2V at three ends |
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Applications: Switching power supply rear regulator Low voltage processor power supply |
Product Description
| Properties | Parameter values |
| PART# | FAN1112D |
| Product catalogue | Linear Voltage Regulators (LDOs) |
| Output type | Fixed |
| Operating voltage | 18V |
| Output voltage | 1.2V |
| Output current | 1A |
| Power Ripple Rejection Ratio (PSRR) | 72dB@(120Hz) |
| Differential pressure | 1.2V@(1A) |
| Quiescent Current (Iq) | 4mA |
| Noise | 0.003%Vout |
| Characteristics | overcurrent protection; Overheating protection |
| Operating temperature | 0℃~+125℃@(Tj) |
| Output polarity | Positive electrode |
| Number of output channels | 1 |
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