MIC2133 datasheet(14/50 Pages) MICROCHIP

部品番号	MIC2133

部品情報	75V Dual Phase, Advanced COT Buck Controller with Selectable Droop Feature and Phase Shedding

PDF	50 Pages

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メーカー	MICROCHIP [Microchip Technology]

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DS20006653B-page 14

MIC2133

Note: Unless otherwise indicated, VIN = 12V; VOUT =5V; fSW = 500 kHz/phase; L1 =L2 = 4.7 µH; RILIM =63.4kΩ;

HS-FETs (Q1,Q3) = N-ch 80V 30A 24 mΩ; LS-FETs (Q2,Q4) = N-ch 80V 46A 16 mΩ; VBST – VSW =5V; TA = +25°C.

FIGURE 2-25:

Load Transient without

Droop (VOUT = 5V, IOUT = 1A to 11A).

FIGURE 2-26:

Load Transient with Droop

(VOUT = 5V, IOUT = 1A to 11A).

FIGURE 2-27:

Current Limit per Phase.

FIGURE 2-28:

Output Short-Circuit

Protection and Recovery (VOUT = 5V).

FIGURE 2-29:

Output Short-Circuit

Protection and Recovery (VOUT = 12V).

FIGURE 2-30:

Power-Up with VIN and 10A

Load.

VOUT

100mV/div

IL1

IL2

5A/div

100 µs/div

VOUT = 5V

IOUT = 1A to 11A

VIN = 48V

5V Offset

VOUT

100mV/div

IL1

IL2

5A/div

1ms/div

VOUT = 5V

IOUT = 1A to 11A

VIN = 48V

5V Offset

RDROOP = 850Ω

VOUT

5V/div

IL2

10A/div

IL1

10A/div

2 ms/div

VOUT = 5V

VIN = 48V

VOUT

5V/div

VSW1

50V/div

4 ms/div

VOUT Short to GND

IL1

5A/div

VIN = 48V

for 20 ms

VOUT = 5V

VOUT

5V/div

VSW1

50V/div

4 ms/div

VOUT Short to GND

IL1

5A/div

VIN = 48V

for 20 ms

VOUT = 12V

4 ms/div

IOUT = 10A

10A/div

IL1

VOUT

5V/div

VSW1

50V/div

VIN

50V/div

VOUT = 5V

VIN = 48V

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