MIC2182BM 데이터 시트보기 (PDF) - Micrel

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MIC2182BM

High-Efficiency Synchronous Buck Controller

Micrel 

MIC2182

Typical Characteristics

Quiescent Current

vs. Temperature

2.0

1.8

PWM

1.6

1.4

1.2

1.0

0.8

0.6

Skip

0.4

0.2

0

-40 -20 0 20 40 60 80 100120140

TEMPERATURE (°C)

1.5

1.0

0.5

0

-0.5

0.4

0.3

0.2

0.1

00

Quiescent Current

vs. Supply Voltage

UVLO Mode

(mA)

SHUTDOWN

(µA)

4 8 12 16 20 24 28 32

SUPPLY VOLTAGE (V)

VREF (Fixed Versions)

1.260

vs. Temperature

1.255

1.250

1.245

1.240

-40 -20 0 20 40 60 80 100120140

TEMPERATURE (°C)

VDD

vs. Temperature

4.98

4.96

4.94

4.92

4.90

4.88

4.86

4.84

4.82

-40 -20 0 20 40 60 80 100120140

TEMPERATURE (°C)

M9999-042204

Quiescent Current

vs. Temperature

1.50

1.00

0.50

UVLO Mode

(mA)

0

-0.520

0.15

0.10

0.05

SHUTDOWN

(µA)

0-40 -20 0 20 40 60 80 100120140

TEMPERATURE (°C)

1.256

1.254

1.252

1.250

1.248

1.246

1.244

1.242

1.240

1.238

1.236

0

VREF (Fixed Versions)

Line Regulation

4 8 12 16 20 24 28 32

SUPPLY VOLTAGE (V)

VDD

5.0

Line Regulation

4.8

4.6

4.4

4.2

4.0

0 4 8 12 16 20 24 28 32

SUPPLY VOLTAGE (V)

Oscillator Frequency

vs. Temperature

10

8

6

4

2

0

-2

-4

-6

-8

-10

-40 -20 0 20 40 60 80 100120140

TEMPERATURE (°C)

6

Micrel

Quiescent Current

vs. Supply Voltage

4.0

3.5

3.0

2.5

2.0

PWM

1.5

1.0

Skip

0.5

0

0 4 8 12 16 20 24 28 32

INPUT VOLTAGE (V)

1.260

VREF (Fixed Versions)

Load Regulation

1.250

1.240

1.230

1.220

1.210

1.200

0

200 400 600 800 1000

LOAD CURRENT (µA)

VDD

5.00

Load Regulation

4.95

4.90

4.85

4.80

0

5 10 15 20 25

LOAD CURRENT (mA)

1.0

0.8

0.6

0.4

0.2

0

-0.2

-0.4

-0.6

-0.8

-1.0

0

Oscillator Frequency

vs. Supply Voltage

4 8 12 16 20 24 28 32

SUPPLY VOLTAGE (V)

April 22, 2004

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