MAX1672 Datasheet, PDF (3/12 Pages) Maxim Integrated Products – Step-Up/Down DC-DC Converter in QSOP Package

Step-Up/Down DC-DC Converter
in QSOP Package
ELECTRICAL CHARACTERISTICS (continued)
(V_PS = 6V, C_REF = 0.1µF, C_OUT = 4.7µF, T_A = -40°C to +85°C, unless otherwise noted. Typical values are at T_A = +25°C.) (Note 1)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Thermal Shutdown Threshold
150
°C
Thermal Shutdown Hysteresis
20
°C
PGI/PGO COMPARATOR
PGI Input Bias Current
Hysteresis
V_PGI = 1.3V
1
50
nA
30
mV
PGI Threshold Voltage
PGO Output Leakage
PGO Output Low Voltage
T_A = 0°C to +85°C
T_A = -40°C to +85°C
V_PGO = 11V
I_PGO = 2mA, V_PGI = 1.2V
LOGIC AND CONTROL INPUTS
Input Low Voltage
ONA, ONB, 3/5; ILIM
Input High Voltage
ONA, ONB, 3/5; ILIM
Input Bias Current
ONA, ONB, 3/5, ILIM
1.21
1.29
V
1.19 1.25 1.31
0.1
1
µA
0.1
0.4
V
0.4
V
1.6
V
1
100
nA
Note 1: Specifications to -40°C are guaranteed by design.
__________________________________________Typical Operating Characteristics
(T_A = +25°C, unless otherwise noted.)
EFFICIENCY vs. OUTPUT CURRENT
(V_OUT = 5V)
100
90
V_IN = 5V
V_IN = 3.6V
V_IN = 2.7V
80
EFFICIENCY vs. OUTPUT CURRENT
(V_OUT = 3.3V)
100
90
V_IN = 3.3V
V_IN = 2.7V
80
EFFICIENCY vs. INPUT VOLTAGE
(I_OUT = 10mA)
100
90
80
V_OUT = 5V
70
60
50
0.1
V_IN = 1.8V
V_IN = 0.9V
1
10
100
1000
OUTPUT CURRENT (mA)
70
60
50
0.1
V_IN = 1.8V
V_IN = 0.9V
1
10
100
1000
OUTPUT CURRENT (mA)
70
V_OUT = 3.3V
60
50
0 1 2 3 4 5 6 7 8 9 10
INPUT VOLTAGE (V)
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