MIC4043BM4 Ver la hoja de datos (PDF) - Master Instrument Corporation

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fabricante

MIC4043BM4

Low-Voltage Secondary-Side Shunt Regulator

Master Instrument Corporation 

MIC4043

Micrel

Electrical Characteristics

TA = 25°C, bold values indicate –40°C ≤ TA ≤ +85°C; unless noted

Parameter

Condition

Reference Voltage, Note 4

Reference Voltage Tolerance

Supply Current

Transconductance

∆ISINK/∆VIN

Output Transistor

Saturation Voltage

Output Leakage

ISNK = 0mA

1mA < ISNK < 15mA

ISNK = 15mA

VSNK = 5V, output transistor off

Min Typ Max Units

1.245

V

±1

%

±2

%

35

65

µA

70

µA

3.5 150

S

2

S

160 250 mV

400 mV

0.5

µA

1

µA

Note 1.

Note 2.

Note 3.

Note 4.

Exceeding the absolute maximum rating may damage the device.

The device is not guaranteed to function outside its operating rating.

Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF. Machine model, 200pF.

Reference voltage is not referenced to ground. The reference is between pins IN and FB.

Test Circuits

Floating

Bench

Supply

OUT

RETURN

Do Not Ground!

VOUT

R1

1.8V

72k

2.5V

33k

3.3V

20k

1k

R

R2

33k

33k

33k

MIC4043

R1

IN SNK

A

GND FB

R2

33k

C1*

R

R3

50Ω

A

* Compensation element

R3

20k

40k

150k

C1

0.001µF

0.001µF

0.001µF

Analyzer

R

R

OUTPUT

A

A

Test Circuit 1. Compensation (Bode Plot) Circuit

Supply

MIC4043

R1

1k

OUT

IN SNK

RETURN

GND FB

R2

33k

R3

C1

* Compensation components

Test Circuit 2. Transient Response Circuit

November 2000

3

MIC4043

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