MAX1907A 데이터 시트보기 (PDF) - Maxim Integrated

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MAX1907A

Quick-PWM Master Controllers for Voltage Positioned CPU Core Power Supplies (IMVP-IV)

Maxim Integrated 

Quick-PWM Master Controllers for Voltage-

Positioned CPU Core Power Supplies (IMVP-IV)

Typical Operating Characteristics (continued)

(Circuit of Figure 1, V+ = 12V, VCC = VDD = 5V, B0–B2 set to 1.276V, S0–S2 set to 0.748V.)

FREQUENCY vs. TEMPERATURE

350

330

20A LOAD

310

290

NO LOAD

270

SINGLE PHASE

VOUT = 1.436V

250

-40 -20 0 20 40 60 80 100

TEMPERATURE (°C)

OUTPUT CURRENT AT CURRENT LIMIT

vs. TEMPERATURE

25

SINGLE PHASE

24

23

22

21

20

-40 -20

0 20 40 60

TEMPERATURE (°C)

80 100

NO-LOAD SUPPLY CURRENT

vs. INPUT VOLTAGE (FORCED-PWM MODE)

35

30

ICC = IDD

25

20

I+

15

10

5

MAX1907A/MAX1981A ONLY

0

0 5 10 15 20 25 30

INPUT VOLTAGE (V)

NO-LOAD SUPPLY CURRENT

vs. INPUT VOLTAGE (PULSE SKIPPING)

2.0

MAX1907A/MAX1981A ONLY

1.8 DPSLP = GND

1.6

1.4

ICC + IDD

1.2

1.0

0.8

0.6

0.4

0.2

0

0

I+

5 10 15 20 25 30

INPUT VOLTAGE (V)

OUTPUT OFFSET VOLTAGE

vs. POS-NEG DIFFERENTIAL VOLTAGE

600

400

200

0

-200

-400

-600

-600 -400 -200 0 200 400 600

POS-NEG DIFFERENTIAL VOLTAGE (mV)

REFERENCE VOLTAGE DISTRIBUTION

25

20

15

10

5

0

1.995

1.997 1.999 2.001 2.003

REFERENCE VOLTAGE (V)

2.005

POS-NEG OFFSET GAIN DISTRIBUTION

60

50

40

30

20

10

0

0.98

0.99

1.00

1.01

1.02

POS-NEG OFFSET GAIN

1.260V OUTPUT VOLTAGE DISTRIBUTION

50

40

30

20

10

0

1.250

1.255 1.260 1.265

OUTPUT VOLTAGE (V)

1.270

VOLTAGE-POSITIONING AMPLIFIER

GAIN AND PHASE vs. FREQUENCY

60

180 MAX1907A/81A toc18

50

144

40

108

30

72

GAIN

20

36

10

0

0

-36

-10

-72

-20

PHASE

-108

-30

-144

-40

0.1

-180

1

10 100 1000 10,000

FREQUENCY (kHz)

10 ______________________________________________________________________________________

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