LP2981A 具有关断模式与 0.75% 容差的 100mA 超低压降稳压器 | 德州仪器 TI.com.cn

LP2981A (正在供货) 具有关断模式与 0.75% 容差的 100mA 超低压降稳压器

具有关断模式与 0.75% 容差的 100mA 超低压降稳压器 - LP2981A
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描述

The LP2981 and LP2981A families of fixed-output, low-dropout regulators offer exceptional, cost-effective performance for both portable and non-portable applications. Available in fixed voltages of 2.8 V, 3 V, 3.3 V, and 5 V, the family has an output tolerance of 0.75% for the A-grade devices (1.25% for the standard grade) and is capable of delivering 100-mA continuous load current. Standard regulator features, such as overcurrent and overtemperature protection, are included.

The LP2981 and LP2981A have features that make the regulators ideal candidates for a variety of portable applications:

  • Low dropout: A PNP pass element allows a typical dropout of 200 mV at 100-mA load current and 7 mV at 1-mA load.
  • Low quiescent current: The use of a vertical PNP process allows for quiescent currents that are considerably lower than those associated with traditional lateral PNP regulators.
  • Shutdown: A shutdown feature is available, allowing the regulator to consume only 0.01 µA when the ON/OFF pin is pulled low.

特性

  • Output Tolerance of
    • 0.75% (A Grade)
    • 1.25% (Standard Grade)
  • Ultra-Low Dropout Typically:
    • 200 mV at Full Load of 100 mA
    • 7 mV at 1 mA
  • Low IQ: 600 µA Typical at Full Load of 100 mA
  • Shutdown Current: 0.01 µA Typical
  • Fast Transient Response to Line and Load
  • Overcurrent and Thermal Protection
  • High Peak Current Capability
  • Low ZOUT Over Wide Frequency Range
  • –40°C to 125°C Temperature Range

参数

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Part number 立即下单 Output options Iout (Max) (A) Vin (Max) (V) Vin (Min) (V) Vout (Max) (V) Vout (Min) (V) Fixed output options (V) Package Group Features Regulated outputs (#) Operating temperature range (C) Thermal resistance θJA (°C/W) Noise (uVrms) Approx. price (US$) Rating PSRR @ 100 KHz (dB) Accuracy (%) Dropout voltage (Vdo) (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG)
LP2981A 立即下单 Fixed Output     0.1     16     2.2     5     2.8     2.8
2.9
3
3.3
5    
SOT-23 | 5     Enable     1     -40 to 125     205     160     0.21 | 1ku     Catalog     41     2     200     0.065     5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5)    
LP2981 立即下单 Fixed Output     0.1     16     2.2     5     2.8     2.8
2.9
3
3.3
5    
SOT-23 | 5     Enable     1     -40 to 125     205     160     0.19 | 1ku     Catalog     41     6     200     0.065     5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5)    
LP2985 立即下单 Fixed Output     0.15     16     2.2     10     1.8     1.8
2.5
2.8
2.9
3
3.3
5
10    
SOT-23 | 5     Enable     1     -40 to 125     206     30     0.18 | 1ku     Catalog     40     5     280     0.065     5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5)    
LP2985A 立即下单 Fixed Output     0.15     16     2.2     10     1.8     1.8
2.5
2.8
2.9
3
3.3
5
10    
SOT-23 | 5         1     -40 to 125     206     30     0.22 | 1ku     Catalog     40     3     280     0.065     5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5)