LTC3406
LTC3406-1.5/LTC3406-1.8
ELECTRICAL CHARACTERISTICS
The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are T
A
= 25°C.
V
IN
= 3.6V unless otherwise specified.
SYMBOL
V
RUN
I
RUN
PARAMETER
RUN Threshold
RUN Leakage Current
CONDITIONS
●
●
MIN
0.3
TYP
1
±0.01
MAX
1.5
±1
UNITS
V
µA
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
The LTC3406E is guaranteed to meet performance specifications
from 0°C to 70°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3:
T
J
is calculated from the ambient temperature T
A
and power
dissipation P
D
according to the following formula:
LTC3406: T
J
= T
A
+ (P
D
)(250°C/W)
Note 4:
The LTC3406 is tested in a proprietary test mode that connects
V
FB
to the output of the error amplifier.
Note 5:
Dynamic supply current is higher due to the gate charge being
delivered at the switching frequency.
TYPICAL PERFOR A CE CHARACTERISTICS
(From Figure1a Except for the Resistive Divider Resistor Values)
Efficiency vs Input Voltage
100
95
90
I
OUT
= 100mA
I
OUT
= 10mA
EFFICIENCY (%)
85 I
OUT
= 1mA
EFFICIENCY (%)
80
75
70
65
60
55
50
V
OUT
= 1.8V
2
3
I
OUT
= 600mA
80
75
70
65
60
0.1
V
IN
= 4.2V
V
IN
= 3.6V
EFFICIENCY (%)
I
OUT
= 0.1mA
4
5
INPUT VOLTAGE (V)
Efficiency vs Output Current
100
95
90
EFFICIENCY (%)
V
OUT
= 2.5V
V
IN
= 2.7V
REFERENCE VOLTAGE (V)
V
IN
= 3.6V
85
80
75
70
65
60
0.1
10
100
1
OUTPUT CURRENT (mA)
1000
3406 G04
0.604
0.599
0.594
0.589
0.584
–50 –25
FREQUENCY (MHz)
V
IN
= 4.2V
U W
6
3406 G01
Efficiency vs Output Current
95
90
85
V
OUT
= 1.2V
V
IN
= 2.7V
95
90
85
Efficiency vs Output Current
V
OUT
= 1.5V
V
IN
= 2.7V
V
IN
= 4.2V
80
V
IN
= 3.6V
75
70
65
60
0.1
1
10
100
OUTPUT CURRENT (mA)
1000
3406 G02
1
10
100
OUTPUT CURRENT (mA)
1000
3406 G03
Reference Voltage vs
Temperature
0.614
V
IN
= 3.6V
0.609
1.65
1.60
1.55
1.50
1.45
1.40
1.35
50
25
75
0
TEMPERATURE (°C)
100
125
1.70
Oscillator Frequency vs
Temperature
V
IN
= 3.6V
1.30
–50 –25
50
25
75
0
TEMPERATURE (°C)
100
125
3406 G05
3406 G06
3406fa
3
LINER [ LINEAR TECHNOLOGY ]
