MAX1672 Maxim, MAX1672 Datasheet - Page 2
MAX1672
Manufacturer Part Number
MAX1672
Description
Step-Up/Down DC-DC Converter in QSOP Package
Manufacturer
Maxim
Datasheet
1.MAX1672.pdf
(12 pages)
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ABSOLUTE MAXIMUM RATINGS
IN, PS, LX, OUT, PGO to GND ......................... -0.3V to +11.5V
ILIM, ONA, ONB, FB, 3/5,
PGND to GND .......................................................-0.3V to +0.3V
OUT Short Circuit to GND ..........................................Continuous
Output Current ..................................................................350mA
Step-Up/Down DC-DC Converter
in QSOP Package
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.
ELECTRICAL CHARACTERISTICS
(V
2
Input Voltage
Startup Voltage
Output Voltage
Output Voltage Adjustment
Range
Output Load Regulation
Output Line Regulation
Quiescent Current
Shutdown Quiescent Current
Reference Voltage
FB Voltage
FB Dual-Mode Trip Threshold
FB Input Current
IN Input Current
LX On-Resistance
LX Leakage Current
LX Current Limit
Output PFET Resistance
Output PFET Leakage Current
Output PFET Current Limit
REF, PGI to GND......................................-0.3V to (V
PS
_______________________________________________________________________________________
= 6V, C
PARAMETER
REF
= 0.1µF, C
OUT
= 4.7µF, T
FB = GND,
I
150mA
V
V
ONA = PS or ONB = GND, current measured into PS pin,
I
ONA = GND, ONB = PS, current measured into PS pin
I
OUT = FB
Hysteresis = 15mV typical
V
V
V
V
V
ILIM = GND
ILIM = PS
V
V
V
V
OUT
OUT
REF
FB
IN
PS
PS
LX
PS
PS
OUT
PS
IN
IN
= GND to 11V
= 2V, 3/5 = GND, FB = GND, I
= 3V to 5V, 3/5 = GND, I
= 1.3V
= 5.5V, I
= 2.7V, I
= 11V, ONA = GND, ONB = PS
= 5.5V, I
= 2.7V, I
= 5.5V
= 0mA
= 0mA to
= 0mA
= 0V, ONA = GND, ONB = PS
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
LX
LX
OUT
OUT
= 50mA
= 50mA
= 50mA
= 50mA
PS
3/5 = GND
3/5 = PS
+ 0.3V)
CONDITIONS
OUT
= 100mA
OUT
Continuous Power Dissipation (T
Operating Temperature Range ......................... -40°C to +85°C
Junction Temperature .................................................... +150°C
Storage Temperature Range ........................... -65°C to +160°C
Lead Temperature (soldering, 10sec) ............................ +300°C
16-Pin QSOP (derate above +70°C by 8.3mW/°C).......667mW
T
T
T
T
= 10mA to 150mA
T
T
T
T
T
T
A
A
A
A
A
A
A
A
A
A
= 0°C to +85°C
= -40°C to +85°C
= 0°C to +85°C
= -40°C to +85°C
= 0°C to +85°C
= -40°C to +85°C
= 0°C to +85°C
= -40°C to +85°C
= 0°C to +85°C
= -40°C to +85°C
MIN
4.75
3.17
3.13
1.25
1.21
1.21
1.20
0.35
0.35
1.8
4.8
0.3
0.6
0.5
A
= +70°C)
0.003
TYP
5.00
3.30
0.15
1.25
1.25
A
0.9
0.1
0.6
0.9
0.1
0.5
0.5
0.8
0.8
1.2
2.3
0.1
0.7
85
70
1
3
= +25°C.) (Note 1)
MAX
1.29
1.29
1.30
11.0
5.25
3.43
3.47
0.65
125
5.2
5.5
1.3
2.0
0.7
1.0
1.1
2.4
4.6
1.4
50
1
6
1
1
UNITS
%/mA
%/V
mV
µA
µA
nA
µA
µA
µA
Ω
A
Ω
A
V
V
V
V
V
V