National Semiconductor LP2981IBP-3.2
Regular price
$0.96
Regular price
$0.24
Sale price
$0.96
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.96 | $0.96 |
| 15+ | $0.22 | $3.30 |
| 25+ | $0.22 | $5.50 |
| 50+ | $0.20 | $10.00 |
| 100+ | $0.18 | $18.00 |
| N+ | $0.04 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | |
| Packaging | Bulk | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 16V |
| Voltage - Output (Min/Fixed) | 3.2V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.37V @ 100mA |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 95 µA |
| Current - Supply (Max) | 1.7 mA |
| PSRR | 63dB (1kHz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 5-VFBGA |
| Supplier Device Package | 5-µSMD (0.93x1.11) |
The LP2981IBP-3.2 from National Semiconductor is a fixed 3.2V LDO regulator delivering 100mA with a dropout of 0.37V. Its low 95µA quiescent current and 63dB PSRR at 1kHz make it suitable for battery-powered and noise-sensitive applications. The 5-µSMD package is ideal for compact designs.
- Low Quiescent Current: 95µA extends battery life in portable devices.
- Low Dropout: 0.37V at 100mA allows operation from nearly depleted batteries.
- High PSRR at 1kHz: 63dB rejection for switching noise.
- Ultra-Small Package: 5-µSMD (0.93x1.11mm) for space-constrained PCBs.
Battery-Powered Handheld Devices
95µA quiescent current and 100mA output suit PDAs, remote controls, and portable meters.
DSP and FPGA Core Supplies
3.2V rail with 0.37V dropout supports low-voltage digital cores from 3.6V batteries.
Precision Analog Circuits
63dB PSRR at 1kHz ensures clean power for sensor signal conditioning.
Wireless Communication Modules
Stable 3.2V output for Bluetooth and Zigbee modules.
Compact Medical Sensors
MicroSMD package enables miniaturized health monitoring devices.
- Q: What is the output voltage?
- A: Fixed 3.2V output.
- Q: What is the maximum current?
- A: 100mA.
- Q: What is the input voltage range?
- A: Not specified in provided data; refer to the datasheet.
- Q: What is the dropout voltage?
- A: 0.37V at 100mA.
- Q: What is the quiescent current?
- A: 95µA.
- Q: What package is available?
- A: 5-µSMD (0.93x1.11mm).
Base Product Number ：
LP2981IBP-3.2
LP2981IBP-3.2.pdf
- Q: What is the output voltage?
- A: Fixed 3.2V output.
- Q: What is the maximum current?
- A: 100mA.
- Q: What is the input voltage range?
- A: Not specified in provided data; refer to the datasheet.
- Q: What is the dropout voltage?
- A: 0.37V at 100mA.
- Q: What is the quiescent current?
- A: 95µA.
- Q: What package is available?
- A: 5-µSMD (0.93x1.11mm).
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