LTM4682 datasheet(14/130 Pages) AD

14 / 130 page

LTM4682

Rev. 0

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VIN = SVIN = 12V, VOUT = 0.75V, FREQ = 575kHz, IOUT = 31.25A

Single Phase Single Output

12V to 0.75V, No Load Short-

Circuit Protection

Quad Output Concurrent Rail,

Start-Up, Prebias

Quad Output Concurrent Rail,

Shutdown, Prebias

TYPICAL PERFORMANCE CHARACTERISTICS T

A = 25°C, unless otherwise noted.

VOUT3 = 1.35V

VOUT2 = 1V

VOUT1 = 0.85V

VOUT0 = 0.7V

5ms/DIV

250mV/DIV

4682 G10

FIGURE 48 CIRCUIT, 12VIN, 30A ON VOUT0

NO LOAD ON OTHER OUTPUTS AND 400mV

PREBIAS ON VOUT1

VOUT3 = 1.35V

VOUT2 = 1V

VOUT1 = 0.85V

VOUT0 = 0.7V

FIGURE 48 CIRCUIT, 12VIN, 30A ON VOUT0

NO LOAD ON OTHER OUTPUTS AND 400mV

PREBIAS ON VOUT1

5ms/DIV

250mV/DIV

4682 G11

200µs/DIV

VOUT, 0.75V

500mV/DIV

IIN

2A/DIV

4682 G12

FIGURE 48 CIRCUIT, 12VIN, NO LOAD ON

VOUT0 PRIOR TO APPLICATION OF SHORT-

CIRCUIT USE OF HIGH RANGE OF ILIMIT

SYSTEM SHORT-CIRCUIT USING LOW

IMPEDANCE COPPER ACROSS OUTPUT

(HARD SHORT)

FIGURE 48 CIRCUIT, 12VIN, 31.25A LOAD ON

VOUT0 PRIOR TO APPLICATION OF SHORT-

CIRCUIT USE OF HIGH RANGE OF ILIMIT

SYSTEM SHORT-CIRCUIT USING LOW

IMPEDANCE COPPER ACROSS OUTPUT

(HARD SHORT)

200µs/DIV

VOUT0, 0.75V

500mV/DIV

IIN

2A/DIV

4682 G13

Single Phase Single Output

12V to 0.75V, 31.25A Load Short-

Circuit Protection

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