LP2985-33DBVR LDO Voltage Regulators 150-mA Low-Noise 1.5% tolerance
♠ Product Description
| Product Attribute | Attribute Value |
| Manufacturer: | Texas Instruments |
| Product Category: | LDO Voltage Regulators |
| Mounting Style: | SMD/SMT |
| Package / Case: | SOT-23-5 |
| Output Voltage: | 3.3 V |
| Output Current: | 150 mA |
| Number of Outputs: | 1 Output |
| Polarity: | Positive |
| Quiescent Current: | 850 uA |
| Input Voltage, Min: | 2.2 V |
| Input Voltage, Max: | 16 V |
| Output Type: | Fixed |
| Minimum Operating Temperature: | - 40 C |
| Maximum Operating Temperature: | + 125 C |
| Dropout Voltage: | 280 mV |
| Series: | LP2985-33 |
| Packaging: | Reel |
| Packaging: | Cut Tape |
| Packaging: | MouseReel |
| Brand: | Texas Instruments |
| Dropout Voltage - Max: | 3 mV |
| Height: | 1.15 mm |
| Ib - Input Bias Current: | 850 uA |
| Length: | 2.9 mm |
| Line Regulation: | 0.014 %/V |
| Operating Supply Current: | 850 uA |
| Operating Temperature Range: | - 4 |
| Product: | LDO Voltage Regulators |
| Product Type: | LDO Voltage Regulators |
| Factory Pack Quantity: | 3000 |
| Subcategory: | PMIC - Power Management ICs |
| Type: | Low Noise Low Dropout Regulators |
| Voltage Regulation Accuracy: | 1.5 % |
| Width: | 1.6 mm |
| Unit Weight: | 0.001376 oz |
♠ LP2985 150-mA, Low-Noise, Low-Dropout Regulator With Shutdown
The LP2985 is a fixed-output, wide-input, low-noise, low-dropout voltage regulator supporting an input voltage range from 2.5 V to 16 V and up to 150 mA of load current. The LP2985 supports an output range of 1.2 V to 5.0 V (for new chip).
Additionally, the LP2985 (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 30 µVRMS (with 10-nF bypass capacitors) and wide bandwidth PSRR performance of greater than 70 dB at 1 kHz and 40 dB at 1 MHz help attenuate the switching frequency of an upstream DC/DC converter and minimize post regulator filtering.
The internal soft-start time and current limit protection reduce inrush current during start up, thus minimizing input capacitance. Standard protection features, such as overcurrent and overtemperature protection, are included.
The LP2985 is available in a 5-pin 2.9-mm × 1.6-mm SOT-23 (DBV) package.
• VIN range (new chip): 2.5 V to 16 V
• VOUT range (new chip): 1.2 V to 5.0 V (fixed, 100- mV steps)
• VOUT accuracy:
– ±1% for A-grade legacy chip
– ±1.5% for standard-grade legacy chip
– ±0.5% for new chip only
• ±1% output accuracy over load, and temperature for new chip
• Output current: Up to 150 mA
• Low IQ (new chip): 71 μA at ILOAD = 0 mA
• Low IQ (new chip): 750 μA at ILOAD = 150 mA
• Shutdown current:
– 0.01 μA (typ) for legacy chip
– 1.12 μA (typ) for new chip
• Low noise: 30 μVRMS with 10-nF bypass capacitor
• Output current limiting and thermal protection
• Stable with 2.2-µF ceramic capacitors
• High PSRR: 70 dB at 1 kHz, 40 dB at 1 MHz
• Operating junction temperature: –40°C to +125°C
• Package: 5-pin SOT-23 (DBV)
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