Typical operating characteristics, Electrical characteristics (continued) – Rainbow Electronics MAX1672 User Manual
Page 3
MAX1672
Step-Up/Down DC-DC Converter
in QSOP Package
_______________________________________________________________________________________
3
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)
Note 1:
Specifications to -40°C are guaranteed by design.
ONA, ONB, 3/5; ILIM
T
A
= 0°C to +85°C
V
PGO
= 11V
I
PGO
= 2mA, V
PGI
= 1.2V
CONDITIONS
mV
30
Hysteresis
°C
20
°C
150
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
V
0.4
Input Low Voltage
1.21
1.29
µA
0.1
1
PGO Output Leakage
V
0.1
0.4
PGO Output Low Voltage
UNITS
MIN
TYP
MAX
PARAMETER
ONA, ONB, 3/5; ILIM
V
1.6
Input High Voltage
__________________________________________Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
100
50
0.1
1
10
100
1000
EFFICIENCY vs. OUTPUT CURRENT
(V
OUT
= 5V)
60
MAX1672-01
OUTPUT CURRENT (mA)
EFFICIENCY (%)
70
80
90
V
IN
= 5V
V
IN
= 3.6V
V
IN
= 1.8V
V
IN
= 0.9V
V
IN
= 2.7V
100
50
0.1
1
10
100
1000
EFFICIENCY vs. OUTPUT CURRENT
(V
OUT
= 3.3V)
60
MAX1672-02
OUTPUT CURRENT (mA)
EFFICIENCY (%)
70
80
90
V
IN
= 3.3V
V
IN
= 1.8V
V
IN
= 0.9V
V
IN
= 2.7V
50
60
70
80
90
100
0
4
5
2
3
1
6
7
8
9
10
EFFICIENCY vs. INPUT VOLTAGE
(I
OUT
= 10mA)
MAX1672-03
INPUT VOLTAGE (V)
EFFICIENCY (%)
V
OUT
= 3.3V
V
OUT
= 5V
V
PGI
= 1.3V
nA
1
50
PGI Input Bias Current
ONA, ONB, 3/5, ILIM
nA
1
100
Input Bias Current
T
A
= -40°C to +85°C
V
1.19
1.25
1.31
PGI Threshold Voltage
PGI/
PGO
COMPARATOR
LOGIC AND CONTROL INPUTS