High-Efficiency, 5x Output, Main Power-Supply

Controllers for Notebook Computers

2

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

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.

IN, SHDN, INA, LDOA to GND ...............................-0.3V to +30V

GND to PGND .......................................................-0.3V to +0.3V

ILIM3, ILIM5, PGDLY to GND...................................-0.3V to +6V

CSL3, CSH3, CSL5, CSH5 to GND ..........................-0.3V to +6V

ON3, ON5, FB3, FB5 to GND ..................................-0.3V to +6V

SKIP, OVP, UVP to GND...........................................-0.3V to +6V

PGOOD, FSEL, ADJA, ONA to GND ........................-0.3V to +6V

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

LX3 to BST3..............................................................-6V to +0.3V

LX5 to BST5..............................................................-6V to +0.3V

LDO3, LDO5 Short Circuit to GND .............................Momentary

REF Short Circuit to GND ...........................................Momentary

INA Shunt Current.............................................................+15mA

32-Pin TQFN (derate 21.3mW/°C above +70°C) .......1702mW

36-Pin TQFN (derate 26.3mW/°C above +70°C) .......2105mW

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

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

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

INPUT SUPPLIES (Note 1)

LDO5 in regulation

6

26

4.5

5.5

V

LDO5 switched over to CSL5

15

35

µA

100

170

µA

5

17

µA

Quiescent Power Consumption

Both SMPS on, FB3 = FB5 = SKIP = GND,

3.5

4.5

mW

Both SMPS on, FB3 = FB5 = GND,

1.1

2.1

mA

MAIN SMPS CONTROLLERS

3.3V Output Voltage in Fixed

Mode

3.280

3.33

3.380

V

5V Output Voltage in Fixed Mode

4.975

5.05

5.125

V

Feedback Voltage in Adjustable

Mode

duty factor = 20% to 80% (Note 2)

0.990

1.005

1.020

V

Output-Voltage Adjust Range

Either SMPS

1.0

5.5

V

FB3, FB5 Dual-Mode Threshold

0.1

0.2

V

Feedback Input Leakage Current

-0.1

+0.1

µA

DC Load Regulation

-0.1

%