LP2951-33D
LDO Voltage Regulators Adj Micropwr Vltg Reg
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製造商零件號 # : LP2951-33D
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包裝/封裝: SOIC-8
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製造商: Texas Instruments
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產品分類 : Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
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LP2951-33D 數據表
價格 (USD)
數量 | 單價 | 總價 |
---|---|---|
1 | $0.580 | $0.58 |
10 | $0.486 | $4.86 |
30 | $0.439 | $13.17 |
100 | $0.391 | $39.10 |
500 | $0.363 | $181.50 |
1000 | $0.350 | $350.00 |
這些價格會受到市場波動的影響,需要提交報價才能取得最新價格。
詳細說明
The LP2950 and LP2951 voltage regulators combine efficiency and flexibility in a compact package. Whether you need a fixed voltage output or the ability to adjust the voltage as needed, these regulators have you covered. The LP2950 offers fixed output options of 5 V, 3.3 V, and 3 V, while the LP2951 can be configured to output either a fixed voltage or a voltage within a specified range. This versatility makes these regulators suitable for a wide range of applications in various industries
主要特徵
- Low noise and electromagnetic interference suppression
- High-reliability operation in harsh environments
- Silicon-based power management solutions
規格
以下是所選零件的基本參數,涉及零件的特性及其所屬類別。
Output options | Adjustable Output, Fixed Output | Iout (max) (A) | 0.1 |
Vin (max) (V) | 30 | Vin (min) (V) | 2 |
Vout (max) (V) | 29 | Vout (min) (V) | 1.2 |
Fixed output options (V) | 3, 3.3, 5 | Noise (µVrms) | 160 |
Iq (typ) (mA) | 0.075 | Thermal resistance θJA (°C/W) | 52, 97 |
Rating | Catalog | Load capacitance (min) (µF) | 1 |
Regulated outputs (#) | 1 | Features | Enable, Power good |
Accuracy (%) | 3 | PSRR at 100 KHz (dB) | 57 |
Dropout voltage (Vdo) (typ) (mV) | 380 | Operating temperature range (°C) | -40 to 125 |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等,這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is LP2951-33D?
The LP2951-33D is a low dropout voltage regulator designed by Texas Instruments. It is a precision, cost-effective solution for providing a fixed output voltage with low dropout voltage and low quiescent current. The device is suitable for a wide range of applications, including battery-powered systems, portable instruments, and voltage reference sources.
How Does LP2951-33D Work?
The LP2951-33D works by regulating an input voltage to a stable output voltage with low dropout. It features a precision reference and error amplifier to maintain the output voltage within specified limits. The regulator also includes thermal shutdown and current limit features for protection against overloading and overheating.
How Many Pins does LP2951-33D have and What are the Functions of the Pinout Configuration?
The LP2951-33D is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:
- Vout: Regulated output voltage pin.
- Vin: Input voltage pin.
- En: Enable input pin for turning the regulator on and off.
- Adj: Adjustment pin for external voltage trimming.
- Common: Common or ground pin.
- Feedback: Error amplifier feedback pin for regulating the output voltage.
- Thermal shutdown: Thermal shutdown protection pin.
- Ct pin: Current limit setting pin.
What are the Pros and Cons of LP2951-33D?
Pros:
- Low Dropout Voltage: Maintains regulation even when the input voltage is only slightly higher than the output voltage.
- Low Quiescent Current: Minimizes power consumption and extends battery life in portable applications.
- Small Package: The 8-pin SOIC package is space-efficient for compact designs.
- Thermal Shutdown and Current Limit: Provides protection features for safe operation.
Cons:
- Fixed Output Voltage: The LP2951-33D provides a fixed output voltage and does not offer adjustable output options.
- External Caps Required: May require external capacitors for stability and output filtering.
Are There Any Equivalents/Alternatives to LP2951-33D for Recommendation?
- The LM2937 from Texas Instruments is a similar low dropout voltage regulator with fixed output voltage options.
- Alternatives to the LP2951-33D include the MIC29302 from Microchip Technology and the LT1763 from Analog Devices.
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