Triple-Output Power-Supply

Controller for Notebook Computers

2

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V+ to GND .................................................................-0.3V, +36V

PGND to GND........................................................................±2V

VL to GND ...................................................................-0.3V, +7V

BST3, BST5 to GND ..................................................-0.3V, +36V

LX3 to BST3.................................................................-7V, +0.3V

LX5 to BST5.................................................................-7V, +0.3V

Inputs/Outputs to GND

(D1-D3, ON5, REF, SYNC, DA1, DA0, DB1, DB0, ON5,

SS5, CS5, FB5, CS3, FB3, SS3, ON3) ..........-0.3V, (VL + 0.3V)

VDD to GND.................................................................-0.3V, 20V

VPPA, VPPB to GND.....................................-0.3V, (VDD + 0.3V)

VH to GND ...................................................................-0.3V, 20V

Q1-Q3 to GND.................................................-0.3V, (VH + 0.3V)

DL3, DL5 to PGND...........................................-0.3V, (VL + 0.3V)

DH3 to LX3 ..................................................-0.3V, (BST3 + 0.3V)

DH5 to LX5 ..................................................-0.3V, (BST5 + 0.3V)

REF, VL, VPP Short to GND........................................Momentary

REF Current.........................................................................20mA

VL Current ...........................................................................50mA

VPPA, VPPB Current .........................................................100mA

SSOP (derate 11.76mW/°C above +70°C) ...................941mW

Operating Temperature Ranges:

MAX782CBX/MAX782__CBX ...............................0°C to +70°C

MAX782EBX/MAX782__EBX ............................-40°C to +85°C

Storage Temperature Range .............................-65°C to +160°C

Lead Temperature (soldering, 10sec) .............................+300°C

ELECTRICAL CHARACTERISTICS

unless otherwise noted.)

Stresses beyond those listed under “Absolute Maximum Ratings‘” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

ABSOLUTE MAXIMUM RATINGS

V

MAX782S

MAX782R

MAX782

FB3 Output Voltage

3.46

3.65

3.75

0mV < (CS3-FB3) < 70mV, 6V < V+ < 30V

(includes load and line regulation)

3.32

3.50

3.60

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Current-Limit Voltage

CS5-FB5 (VDD < 13V, flyback mode)

-50

-100

-160

mV

CS3-FB3 or CS5-FB5

Line Regulation

Either controller (V+ = 6V to 30V)

0.03

%/V

Load Regulation

Either controller (CS_ - FB_ = 0mV to 70mV)

2

%

SS3/SS5 Source Current

2.5

4.0

6.5

µA

SS3/SS5 Fault Sink Current

2

mA

VDD Regulation Setpoint

Falling edge, hysteresis = 1%

V

FB5 Output Voltage

4.80

5.08

5.20

V

3.17

3.35

3.46

Input Supply Range

5.5

30

V

VDD Shunt Setpoint

Rising edge, hysteresis = 1%

V

VDD Shunt Current

VDD = 20V

23

mA

Quiescent VDD Current

140

300

µA

VDD Off Current

15

30

µA

11.6

12.1

12.5

0mV < (CS5-FB5) < 70mV, 6V < V+ < 30V

(includes load and line regulation)

VDD = 18V, ON3 = ON5 = 5V,

VPPA/B programmed to 12V with no external load

4.85

5.05

5.20

VPPA/VPPB Output Voltage

-0.3

0.3

V

VPPA/VPPB Off Input Current

Program to Hi-Z, VDD = 19V, 0V < VPP < 12V

35

µA

VDD = 18V, ON3 = ON5 = 5V,

VPPA/B programmed to Hi-Z or 0V

18

20

13

14

80

100

120

+3.3V AND 5V STEP-DOWN CONTROLLERS

15V FLYBACK CONTROLLER

PCMCIA REGULATORS (Note 1)

V

V