SC431LI5SK-2TR Просмотр технического описания (PDF) - Semtech Corporation

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производитель

SC431LI5SK-2TR

Low Voltage Adjustable Shunt Regulator

Semtech Corporation 

SC431L

POWER MANAGEMENT

Typical Characteristics (Cont.)

Reference Impedance vs.

Junction Temperature

0.50

0.45

0.40

IZ = 0.1 to 100 mA

VZ = VREF

f < 1 kHz

0.35

0.30

0.25

0.20

0.15

0.10

0.05

0.00

-50 -25

0

25

50

75

TJ (°C)

100 125 150

Small-Signal Gain and Phase Shift

vs. Frequency

80

70

60

50

40

30

20

10

0

-10

-20

1.0E+02

1.0E+03

1.0E+04

f (Hz)

1.0E+05

-180

-225

-270

-315

-360

-405

-450

-495

-540

-585

-630

1.0E+06

Stability Boundary Condition For Shunt Regulation

vs. Cathode Current and Load Capacitance

3.5

TA = 25°C

3.0

Stable

2.5

Stable

2.0

1.5

VZ = VREF

1.0

0.5

VZ = 2V

0.0

0.001

0.01

0.1

1

10

CL (µF)

Reference Impedance

vs. Frequency

100

TA = 25°C

10

1

0.1

0.01

1.E+03

1.E+04

1.E+05

f (Hz)

1.E+06

1.E+07

Test Circuit - Small-Signal Gain and Phase

Test Circuit - Stability

 2008 Semtech Corp.

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