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SPX3587AR

3A Low Dropout Voltage Regulator

Signal Processing Technologies 

ELECTRICAL CHARACTERISTICS: Continued (Notes)

NOTES:

Note 1: Output temperature coefficient is defined as the worst case voltage change divided by the total temperature range

Note 2: Dropout voltage is defined as the input to output differential at which the output voltage drops 100mV below its nominal value

measured at 1V differential at very low values of programmed output voltage, the minimum input supply voltage of 2V ( 2.3V

over temperature) must be taken into account.

Note 3: Thermal regulation is defined as the change in output voltage at a time T after a change in power dissipation is applied. excluding

load or line regulation effect.

Note 4: Adjustable Version Only.

TYPICAL PERFORMANCE CHARACTERISTICS

3.325

3.320

3.315

3.310

3.305

3.300

4.5

6.5

8.5 10.5 12.5 14.5

Vin (V)

Figure 1. Line Regulation for SPX1587U-3.3; IOUT=10mA

1.275

1.27

1.265

1.25v Adj

1.26

1.255

1.25

1.245

1.24

1.235

1.23

1.225

-50 -30 -10 10 30 50 70 90 110 130

Temp (C)

Figure 2. VOUTvs Temperature, V IN=2.5V, IOUT=10mA

2.55

2.54

2.5v Adj

2.5v Fixed

2.53

2.52

2.51

2.5

2.49

2.48

2.47

2.46

2.45

-50 -30 -10 10

30 50 70

Temp (°C)

90 110 130

3.38

3.3v Adj

3.3v Fixed

3.36

3.34

3.32

3.3

3.28

3.26

-50 -30 -10 10

30 50 70

Temp (C)

90 110 130

Figure 3. V =4.0V, I =10mA

IN

OUT

Figure 4. VIN=5.0V, IOUT=10mA

Jun8-07 Rev D

SPX1587 Low-Dropout Voltage Regulator



© 2007 Sipex Corporation

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