SC1544 データシートの表示（PDF） - Semtech Corporation

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SC1544

ACPI Controller for Advanced Motherboards

Semtech Corporation 

SC1544

POWER MANAGEMENT

PRELIMINARY

Electrical Characteristics (Cont.)(1)

Unless specified: all applicable silver box supplies (3.3V, 5V, 5VSB) ± 5%, GND = 0V, VSENSE PINS = VOUT(NOM), TA = 25°C. Values in bold apply over full

operating ambient temperature range.

Parameter

Symbol

Test Conditions

Min Typ Max Units

3.3V Dual Output (Cont.)

Gate 3 Drive Voltage(9)

Gate 3 Drive Current(9)

Gate 4 Drive Voltage(10)

Gate 4 Drive Current(10)

Sense Pin Bias Current

5V Dual Output

VG3(HI)

VG3(LO)

IG3(SOURCE)

IG3(SINK)

VG4(HI)

VG4(LO)

IG4(SOURCE)

IG4(SINK)

I3.3VD

IG3 = 10µA

IG3 = -10µA

VG3 = 5V

VG3 = 3V

V3.3VD = 3.2V, IG4 = 10µA

V3.3VD = 3.4V, IG4 = -10µA

V3.3VD = VOUT(NOM) - 100mV, VG4 = 5V

V3.3VD = VOUT(NOM) + 100mV, VG4 = 3V

Sinking, V3.3VD = 3.3V

8.00 8.75

V

40

100 mV

0.5

0.7

mA

-10

-14

8.00 8.75

V

0.8

1.0

2

4

mA

-3.5

5

-70 -100 -130 µA

Gate 2 Drive Voltage(11)

Gate 2 Drive Current(11)

Gate 1 Drive Voltage(12)

Gate 1 Drive Current(12)

Sense Pin Bias Current(2)

AGP Output

VG2(HI)

VG2(LO)

IG2(SOURCE)

IG2(SINK)

VG1(HI)

VG1(LO)

IG1(SOURCE)

IG1(SINK)

I5VD

IG2 = 10µA

IG2 = -10µA

VG2 = 5V

VG2 = 3V

IG1 = 10µA

IG1 = -10µA

VG1 = 5V

VG1 = 3V

V5VD = 5V

8.00 8.75

V

40

100 mV

0.5

0.7

mA

-10

-14

8.00 8.75

V

40

100 mV

0.5

0.7

mA

-10

-14

16 µA

Output Voltage(13)

VAGP

1mA ≤ IOUT ≤ 720mA

-2.0 VOUT(NOM) +2.0

%

-3.0

+3.0

Line Regulation(13)

Load Regulation(13)

Gate 7 Drive Voltage(4)

REGLINE

REGLOAD

VG7(HI)

V

G7(LO)

V5VSB = 4.75V to 5.25V, IOUT = 0A

V5VSB = 5V, IOUT = 0A to 720mA

VAGP = VOUT(NOM) - 100mV, IG7 = 10µA

V =V

+ 100mV, I = -10µA

AGP

OUT(NOM)

G7

0.01 0.10 %

0.01 0.20 %

8.00 8.75

V

0.8

1.0

V

 2002 Semtech Corp.

4

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