2

TECHNICAL SPECIFICATIONS

PARAMETER

NOTES and CONDITIONS

D12S72

Min.

Typ.

Max.

Units

ABSOLUTE MAXIMUM RATINGS

Input Voltage (Continuous)

0

15

Vdc

Operating Temperature

Refer to Figure 21 for the measuring point

0

113

°C

Storage Temperature

-40

125

°C

Gate Voltage

0

7

Vdc

INPUT CHARACTERISTICS

Operating Input Voltage

7.0

13.2

V

Maximum Input Current

Vin=7V, Vout=1.8V, Iout=40A

11.4

A

PWM

Pin 4 and 5

4.5

5.0

5.5

V

PWMH, PWML logic low

PWMH or PWML

0

2

V

PWMH, PWML logic high

PWMH or PWML

3

3.5

5.5

V

Gate Voltage

Pin 3 (reference to ground), 6.4V recommended operating voltage

4.5

6.4

7

Vdc

OUTPUT CHARACTERISTICS

Output Voltage Adjustable Range

0.8

1.0

1.8

Vdc

Total Output Voltage Regulation

Total Regulation over load, line and temperature

-1

+1

%V

Output Voltage Ripple and Noise

6x 560µF OSCON and 388µF ceramic capacitor, BW=20MHz

20

mVpp

Output Voltage Overshoot

@ turn on

0.5

%

Output Current Range

0

40

A

Transient Response

6x 560µF OSCON and 388µF ceramic capacitor, 10A/µs, 1.8Vout

Positive Step Change in Output Current

75% Io,max to 100% Io,max

100

mV

Negative Step Change in Output Current

100% Io,max to 75% Io,max

100

mV

Setting Time to 10% of Peak Devitation

20

µs

Temperature sense

25°C, 100µA bias current

0.6

V

EFFICIENCY

Vin=7V, Vo=1.8V, Io=40A

92.0

%

Vin=12V, Vo=1.8V, Io=40A

91.5

%

Vin=13.2V, Vo=1.8V, Io=40A

91.0

%

FEATURE CHARACTERISTICS

Operating Frequency

400

kHz

GENERAL SPECIFICATIONS

MTBF

Vo=1.8V, Io=32A, Ta=25℃,400LFM

25.18

M hours

Weight

9.8

grams

L

TEMP+

CS+

CS-

VIN

PWMH

GND

VGATE

GND

PWML

TEMP-

Block diagram of D12S72C