LP2951-33-Q1 - 汽车单路输出 LDO、100mA、固定电压 (3.3V)、宽输入电压范围、复位标志

LP2951-33-Q1是TI德州仪器公司的一款单通道LDO产品，LP2951-33-Q1是汽车单路输出 LDO、100mA、固定电压 (3.3V)、宽输入电压范围、复位标志，本站介绍了LP2951-33-Q1的封装应用图解、特点和优点、功能等，并给出了与LP2951-33-Q1相关的TI元器件型号供参考。

LP2951-33-Q1 - 汽车单路输出 LDO、100mA、固定电压 (3.3V)、宽输入电压范围、复位标志 - 单通道LDO - 线性稳压器(LDO) - 德州仪器

产品特性

Qualified for Automotive Applications
Wide Input Range: Up to 35 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
8-Pin Package
- Fixed Voltages: 5V/ADJ and 3.3V/ADJ
- Low-Voltage Error Signal on Falling Output
- Shutdown Capability
- Remote Sense Capability for Optimal Output Regulation and Accuracy

产品应用

Automotive Power
- Battery to MCU Regulator
- Sensor Supply
- Infotainment
- Body Control Module
Secondary Side Regulation
Point of Load Regulation

产品说明

The LP2951-xx-Q1 devices are bipolar, low-dropout voltage regulators that can accommodate a wide input supply-voltage range of up to 35 V. The 8-pin LP2951-xx-Q1 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-xx-Q1 outputs a fixed 5 V and 3.3 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.

The 8-pin LP2951-xx-Q1 also offers additional functionality that makes it particularly suitable for battery-powered applications. For example, a logic-compatible shutdown feature allows the regulator to be put in standby mode for power savings. In addition, there is a built-in supervisor reset function in which the ERROR output goes low when VOUT drops by 6% of its nominal value for whatever reasons – due to a drop in VIN, current limiting, or thermal shutdown.

The LP295x-xx-Q1 devices are designed to minimize all error contributions to the output voltage. With a tight output tolerance (0.5% at 25°C), a very low output voltage temperature coefficient (20 ppm typical), extremely good line and load regulation (0.3% and 0.4% typical), and remote sensing capability, the parts can be used as either low-power voltage references or 100-mA regulators.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
LP2951-33-Q1	SOIC (8)	4.90 mm × 3.90 mm
LP2591-50-Q1	SOIC (8)	4.90 mm × 3.90 mm
LP2951-50-Q1	WSON (8)	3.00 mm × 3.00 mm

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