MAX1672CSLASHD datasheet(2/11 Pages) MAXIM

2 / 11 page

Step-Up/Down DC-DC Converter

in QSOP Package

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VPS = 6V, CREF = 0.1µF, COUT = 4.7µF, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)

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, PS, LX, OUT, PGO to GND ......................... -0.3V to +11.5V

ILIM, ONA, ONB, FB, 3/5,

REF, PGI to GND......................................-0.3V to (VPS + 0.3V)

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

OUT Short Circuit to GND ..........................................Continuous

Output Current ..................................................................350mA

Continuous Power Dissipation (TA = +70°C)

16-Pin QSOP (derate above +70°C by 8.3mW/°C).......667mW

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

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

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

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

VPS = 5.5V

VOUT = 0V, ONA = GND, ONB = PS

VPS = 2.7V, IOUT = 50mA

VPS = 5.5V, IOUT = 50mA

ILIM = GND

VLX = 11V, ONA = GND, ONB = PS

VPS = 2.7V, ILX = 50mA

IREF = 0mA

VPS = 5.5V, ILX = 50mA

VIN = GND to 11V

ONA = GND, ONB = PS, current measured into PS pin

ONA = PS or ONB = GND, current measured into PS pin,

IOUT = 0mA

VIN = 2V, 3/5 = GND, FB = GND, IOUT = 10mA to 150mA

VFB = 1.3V

VIN = 3V to 5V, 3/5 = GND, IOUT = 100mA

Hysteresis = 15mV typical

CONDITIONS

0.35

0.7

1.4

Output PFET Current Limit

µA

0.1

Output PFET Leakage Current

Ω

2.3

4.6

1.2

2.4

Output PFET Resistance

0.3

0.5

0.7

0.35

0.5

0.65

µA

0.1

LX Leakage Current

Ω

0.9

2.0

LX On-Resistance

0.6

1.3

µA

IN Input Current

150

FB Input Current

FB Dual-Mode Trip Threshold

4.8

5.2

0.9

1.8

11.0

Input Voltage

Startup Voltage

1.21

1.25

1.29

1.21

1.25

1.29

Reference Voltage

µA

0.1

Shutdown Quiescent Current

µA

125

Quiescent Current

4.75

5.00

5.25

1.25

5.5

Output Voltage Adjustment

Range

%/mA

0.003

Output Load Regulation

%/V

0.15

Output Line Regulation

UNITS

MIN

TYP

MAX

PARAMETER

3.17

3.43

3.13

3.30

3.47

Output Voltage

FB = GND,

IOUT = 0mA to

150mA

TA = 0°C to +85°C

TA = -40°C to +85°C

TA = 0°C to +85°C

TA = -40°C to +85°C

1.20

1.30

FB Voltage

TA = 0°C to +85°C

TA = -40°C to +85°C

ILIM = PS

0.5

0.8

1.1

LX Current Limit

0.6

0.8

1.0

TA = 0°C to +85°C

TA = -40°C to +85°C

TA = 0°C to +85°C

TA = -40°C to +85°C

3/5 = PS

OUT = FB

3/5 = GND

VPS = 6.8V

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