LM4120 精密微功耗低压降电压基准 | 德州仪器 TI.com.cn

LM4120 (正在供货)

精密微功耗低压降电压基准

精密微功耗低压降电压基准 - LM4120
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描述

The LM4120 device is a precision low-power, low dropout bandgap voltage reference with up to 5-mA output current source and sink capability.

This series reference operates with input voltages as low as 2 V and up to 12 V, consuming 160-µA (typical) supply current. In power-down mode, device current drops to less than 2 µA.

The LM4120 comes in two grades (A and Standard) and seven voltage options for greater flexibility. The best grade devices (A) have an initial accuracy of 0.2%, while the standard have an initial accuracy of 0.5%, both with a temperature coefficient of 50 ppm/°C ensured from −40°C to 125°C.

The very low dropout voltage, low supply current, and power-down capability of the LM4120 make this product an ideal choice for battery-powered and portable applications.

The device performance is ensured over the industrial temperature range (−40°C to 85°C), while certain specifications are ensured over the extended temperature range (−40°C to 125°C). Contact TI for full specifications over the extended temperature range. The LM4120 is available in a standard 5-pin SOT-23 package.

特性

  • Small SOT23-5 Package
  • Low Dropout Voltage: 120 mV Typical at 1 mA
  • High Output Voltage Accuracy: 0.2%
  • Source and Sink Current Output: ±5 mA
  • Supply Current: 160 µA Typical
  • Low Temperature Coefficient: 50 ppm/°C
  • Enable Pin
  • Fixed Output Voltages: 1.8, 2.048, 2.5, 3, 3.3,
    4.096, and 5 V
  • Industrial Temperature Range: −40°C to 85°C
  • (For Extended Temperature Range, −40°C to
    125°C, Contact TI)

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参数 与其它产品相比 串联电压基准

 
VO (V)
Initial Accuracy (Max) (%)
Temp Coeff (Max) (ppm/ degree C)
Rating
Operating Temperature Range (C)
Iout/Iz (Max) (mA)
Iq (Typ) (uA)
Shutdown Current (Typ) (uA)
Iq (Max) (uA)
Features
Package Group
Vin (Min) (V)
Vin (Max) (V)
LM4120 LM4128 LM4128-Q1 LM4132 LM4132-Q1 LM4140
1.8
2.048
2.5
3
3.3
4.096
5    
1.8
2.048
2.5
3
3.3
4.096    
1.8
2.048
2.5
3
3.3
4.096    
1.8
2.048
2.5
3
3.3
4.096    
2.5
3
3.3    
1.024
1.25
2.048
2.5
4.096    
0.2
0.5    
0.1
0.2
0.5
1    
0.1
0.2
0.5
1    
0.05
0.1
0.2
0.4    
0.05
0.1
0.2
0.4    
0.1    
50     100
75    
100
75    
10
20
30    
10
20
30    
3
6
10    
Catalog     Catalog     Automotive     Catalog     Automotive     Catalog    
-40 to 85     -40 to 125     -40 to 125     -40 to 125     -40 to 125     0 to 70    
5     20     20     20     20     8    
160     60     60     60     60     230
265    
2     3     3     3     3     0.1    
275     100     100     100     100     320
375
350
400    
Enable pin     Enable pin     Enable pin     Enable pin     Enable pin     Enable pin    
SOT-23 | 5     SOT-23 | 5     SOT-23 | 5     SOT-23 | 5     SOT-23 | 5     SOIC | 8    
2     2.2     2.2     2.2     2.2     1.8    
12     5.5     5.5     5.5     5.5     5.5