Packaging information
| Package | Pins SOT-23 (DBV) | 5 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 1,000 | LARGE T&R |
Features for the LP2985-N
- VIN range: 2.5V to 16V
- VOUT range (new chip):
- 1.2V to 5.0V (fixed, 100mV steps)
- VOUT range (legacy chip): 2.5V to 6.1V
- VOUT accuracy:
- ±1% for A-grade (legacy chip)
- ±1.5% for standard-grade (legacy chip)
- ±0.5% (new chip)
- Output accuracy over load, and
temperature:
- ±1% (new chip)
- Output current: Up to 150mA
- Low IQ (new chip): 71µA at ILOAD = 0mA
- Low IQ (new chip): 750µA at ILOAD = 150mA
- Shutdown current:
- 0.05µA (typical, legacy chip)
- 1.12µA (typical, new chip)
- Low noise: 30µVRMS with 10nF bypass capacitor
- Output current limiting and thermal protection
- Stable with 2.2µF ceramic capacitors (new chip)
- High PSRR: 70dB at 1kHz, 40dB at 1MHz
- Operating junction temperature: –40°C to +125°C
- Package: 5-pin SOT-23 (DBV)
Description for the LP2985-N
The LP2985-N is a fixed-output, wide-input, low-noise, low-dropout voltage regulator. The device supports an input voltage range from 2.5V to 16V (new chip) and up to 150mA of load current. The LP2985-N supports an output range of 1.2V to 5.0V (new chip) and 2.5V to 6.1V (legacy chip).
Additionally, the LP2985-N (new chip) has a ±1% output accuracy across load and temperature that can meet the needs of low-voltage microcontrollers (MCUs) and processors.
Low output noise of 30µVRMS (with 10nF bypass capacitors) and wide bandwidth PSRR performance of greater than 70dB at 1kHz and 40dB at 1MHz (for new chip) help attenuate the switching frequency of an upstream DC/DC converter and minimize post regulator filtering.
The new chip version of LP2985-N has internal soft-start mechanism that reduces inrush current during start up, thus minimizing input capacitance. Standard protection features, such as overcurrent and overtemperature protection, are included.
The LP2985-N is available in a 5-pin, 2.9mm × 2.8mm SOT-23 (DBV) package.