LP2951CSD/NOPB LDO Voltage Regulators Adj MicroPwr Vtg Reg
♠ Product Description
| Product Attribute | Attribute Value |
| Manufacturer: | Texas Instruments |
| Product Category: | LDO Voltage Regulators |
| RoHS: | Details |
| Mounting Style: | SMD/SMT |
| Package/Case: | WSON-8 |
| Output Voltage: | 5 V |
| Output Current: | 100 mA |
| Number of Outputs: | 1 Output |
| Polarity: | Positive |
| Quiescent Current: | 75 uA |
| Input Voltage, Min: | - 300 mV |
| Input Voltage, Max: | 30 V |
| Output Type: | Fixed |
| Minimum Operating Temperature: | - 40 C |
| Maximum Operating Temperature: | + 125 C |
| Dropout Voltage: | 380 mV |
| Series: | LP2951-N |
| Packaging: | Reel |
| Packaging: | Cut Tape |
| Packaging: | MouseReel |
| Brand: | Texas Instruments |
| Dropout Voltage - Max: | 80 mV, 450 mV |
| Ib - Input Bias Current: | 75 uA |
| Line Regulation: | 0.1 % |
| Load Regulation: | 0.1 % |
| Operating Temperature Range: | - 4 |
| Product: | LDO Voltage Regulators |
| Product Type: | LDO Voltage Regulators |
| Reference Voltage: | 1.25 V |
| Factory Pack Quantity: | 1000 |
| Subcategory: | PMIC - Power Management ICs |
| Type: | Adjustable Micropower Voltage Regulators |
| Voltage Regulation Accuracy: | 0.5 % |
| Unit Weight: | 11 mg |
♠ LP295x-N Series of Adjustable Micropower Voltage Regulators
The LP2950-N and LP2951-N are micropower voltage regulators with very low quiescent current (75 µA typical) and very low dropout voltage (typical 40 mV at light loads and 380 mV at 100 mA). They are ideally suited for use in battery-powered systems. Furthermore, the quiescent current of the device increases only slightly in dropout, prolonging battery life.
Careful design of the LP2950-N/LP2951-N has minimized all contributions to the error budget. This includes a tight initial tolerance (0.5% typical), extremely good load and line regulation (0.05% typical) and a very low output voltage temperature coefficient, making the part useful as a low-power voltage reference.
One such feature is an error flag output which warns of a low output voltage, often due to falling batteries on the input. It may be used for a power-on reset. A second feature is the logic-compatible shutdown input which enables the regulator to be switched on and off. Also, the part may be pin-strapped for a 5-V, 3-V, or 3.3-V output (depending on the version), or programmed from 1.24 V to 29 V with an external pair of resistors.
The LP2950-N is available in the surface-mount TO-252 package and in the popular 3-pin TO-92 package for pin-compatibility with older 5-V regulators. The 8- pin LP2951-N is available in plastic, ceramic dual-inline, WSON, or metal can packages and offers additional system functions.
• Input Voltage Range: 2.3 V to 30 V
• 5-V, 3-V, and 3.3-V Output Voltage Versions Available
• High Accuracy Output Voltage
• Ensured 100-mA Output Current
• Extremely Low Quiescent Current
• Low Dropout Voltage
• Extremely Tight Load and Line Regulation
• Very Low Temperature Coefficient
• Use as Regulator or Reference
• Needs Minimum Capacitance for Stability
• Current and Thermal Limiting
• Stable With Low-ESR Output Capacitors (10 mΩ to 6 Ω)
• LP2951-N Versions Only:
– Error Flag Warns of Output Dropout
– Logic-Controlled Electronic Shutdown
– Output Programmable From 1.24 V to 29 V
• High-Efficiency Linear Regulator
• Regulator with Undervoltage Shutdown
• Low Dropout Battery-powered Regulator
• Snap-ON/Snap-OFF Regulator space
