LP2951-33是TI公司的一款单通道LDO产品，LP2951-33是Fixed/Adjustable 3.3V Micropower Voltage Regulator with Shutdown，本页介绍了LP2951-33的产品说明、应用、特性等，并给出了与LP2951-33相关的TI元器件型号供参考。
LP2951-33 - Fixed/Adjustable 3.3V Micropower Voltage Regulator with Shutdown - 单通道LDO - 线性稳压器(LDO) - TI公司（Texas Instruments，德州仪器）
- Wide Input Range: Up to 30 V
- Rated Output Current of 100 mA
- Low Dropout: 380 mV (Typ) at 100 mA
- Low Quiescent Current: 75 μA (Typ)
- Tight Line Regulation: 0.03% (Typ)
- Tight Load Regulation: 0.04% (Typ)
- High VO Accuracy
- 1.4% at 25°C
- 2% Over Temperature
- Can Be Used as a Regulator or Reference
- Stable With Low ESR (>12mΩ) Capacitors
- Current- and Thermal-Limiting Features
- LP2950 Only (3-Pin Package)
- Fixed-Output Voltages of 5 V, 3.3 V, and3V
- LP2951 Only (8-Pin Package)
- Fixed- or Adjustable-Output Voltages: 5V/ADJ, 3.3V/ADJ, and 3V/ADJ
- Low-Voltage Error Signal on Falling Output
- Shutdown Capability
- Remote Sense Capability for Optimal Output Regulation and Accuracy
- Applications with High-Voltage Input
- Power Supplies
The LP2950 and LP2951 devices are bipolar, low-dropout voltage regulators that can accommodate a wide input supply-voltage range of up to 30 V. The easy-to-use, 3-pin LP2950 is available in fixed-output voltages of 5V, 3.3V, and 3V. However, the 8-pin LP2951 is able to output either a fixed or adjustable output from the same device. By tying the OUTPUT and SENSE pins together, and the FEEDBACK and VTAP pins together, the LP2951 outputs a fixed 5 V, 3.3 V, or 3 V (depending on the version). Alternatively, by leaving the SENSE and VTAP pins open and connecting FEEDBACK to an external resistor divider, the output can be set to any value between 1.235 V to 30 V.
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| LP2950 | TO-92 (3) | 4.83 mm x 4.83 mm |
| LP2951 | SOIC (8) | 4.90 mm x 3.90 mm |
| SON (8) | 3.00 mm x 3.00 mm |
