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W-QFN3535-20.png3A, Ultra Low Noise, High Accuracy, LDO Voltage Regulator
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The AP7179D is a high output current (3A), low-dropout regulator capable of sourcing 3A with 180mV maximum dropout, lownoise (4.4μVRMS), high output voltage accuracy (1%). The device output voltage is pin-programmable from 0.8V to 3.95V using a PCB layout and adjustable from 0.8V to 5.0V using an external resistor divider. The device supports a lower input voltage of 1.1V, which makes it flexible to use and requires a lower component count.
The device’s low noise (4.4μVRMS), high PSRR, and high output current capability makes it ideal to power noise-sensitive devices such as high-performance serializers and deserializers (SerDes), analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and FR components.
High output accuracy, remote sensing, excellent transient performance, and soft-start capabilities also make the AP7179D ideal
to power digital loads such as field-programmable gate arrays (FPGAs), digital signal processors (DSPs), and application-specific
integrated circuits (ASICs). The enable control and a power-good indicator provide easy and accessible power-sequence control. Output noise immunity is enhanced by adding a bypass capacitor on NR/SS pin.
The AP7179D is packaged in the W-QFN3535-20 (Type A1) package.
| Iq (max) (µA) | 4000 |
|---|---|
| Iq (typ) (?A) | 2800 |
| AEC Qualified | No |
| Compliance (Only Automotive supports PPAP) | Standard |
| Type | LDO |
| Output options | Adjustable |
| Iout (A) | 3 |
| Vin (Max) (V) | 6.5 |
| Vin (Min) (V) | 1.1 |
| Vout (min) | 0.8 |
| Vout (max) | 3.6 |
| Adjustable VFB (V) | 0.8 |
| Accuracy 25C | 1 |
| Noise uV RMS 10-100 kHz | 4.4 |
| VDROPOUT (Max) (V) at Max Current and Max Ouput Voltage | 0.11 |
| PSRR (dB) 1kHz | 42 |
| Operating Temperature (Ambient) (°C) | -40 to 85 |
| Enable Active | Yes (High) |
| Channels | 1 |
| Output Discharge | Yes |
| Power Good | Open Drain |
| Reverse Protection | No |
| VCTL Function | No |
