MAX8733A 데이터 시트보기 (PDF) - Maxim Integrated

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MAX8733A

High-Efficiency, Quad-Output, Main Power-Supply Controllers for Notebook Computers

Maxim Integrated 

High-Efficiency, Quad-Output, Main Power-

Supply Controllers for Notebook Computers

ELECTRICAL CHARACTERISTICS (continued)

(Circuit of Figure 1 and Figure 2, no load on LDO5, LDO3, OUT3, OUT5, and REF, V+ = 12V, ON3 = ON5 = VCC, V SHDN = 5V,

TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)

PARAMETER

CONDITIONS

Overvoltage Fault

Propagation Delay

FB3 or FB5 delay with 50mV overdrive

PGOOD Threshold

FB3 or FB5 with respect to nominal output, falling edge,

typical hysteresis = 1%

PGOOD Propagation Delay

PGOOD Output Low Voltage

PGOOD Leakage Current

Thermal-Shutdown Threshold

Falling edge, 50mV overdrive

ISINK = 4mA

High state, forced to 5.5V

Output Undervoltage

Shutdown Threshold

FB3 or FB5 with respect to nominal output voltage

Output Undervoltage

Shutdown Blanking Time

From ON_ signal

INPUTS AND OUTPUTS

Feedback Input Leakage Current

PRO Input Voltage

SKIP Input Voltage

TON Input Voltage

ON3, ON5 Input Voltage

Input Leakage Current

SHDN Input Trip Level

VFB3 = VFB5 = 2.2V

Low level

High level

Low level

Float level

High level

Low level

High level

Clear fault level/SMPS off level

Delay start level

SMPS on level

V PRO or VTON = 0 or 5V

VON_ = 0 or 5V

V SKIP = 0 or 5V

V SHDN = 0 or 24V

VCS_ = 0 or 5V

VILIM3, VILIM5 = 0 or 2V

Rising edge

Falling edge

DH_ Gate-Driver

Sink/Source Current

DH3, DH5 forced to 2V

DL_ Gate-Driver Source Current

DL_ Gate-Driver Sink Current

DH_ Gate-Driver On-Resistance

DL_ Gate-Driver On-Resistance

DL3 (source), DL5 (source), forced to 2V

DL3 (sink), DL5 (sink), forced to 2V

BST - LX_ forced to 5V

DL_, high state (pullup)

DL_, low state (pulldown)

MIN TYP MAX UNITS

10

µs

-12

-9.5

-7

%

10

µs

0.3

V

1

µA

+160

oC

65

70

75

%

10

22

35

ms

-200 +40 +200

nA

0.6

V

1.5

0.8

1.7

2.3

V

2.4

0.8

V

2.4

0.8

1.7

2.3

V

2.4

-1

+1

-2

+2

-1

+1

µA

-1

+1

-2

+2

-0.2

+0.2

1.2

1.6

2.0

V

0.96 1.00 1.04

2

A

1.7

A

3.3

A

1.5

4.0

Ω

2.2

5.0

Ω

0.6

1.5

4 _______________________________________________________________________________________

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