Datasheet
3
LTC34 06
LTC34 0 6 -1.5/LTC34 0 6 -1.8
3406fa
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
RUN
RUN Threshold ● 0.3 1 1.5 V
I
RUN
RUN Leakage Current ● ±0.01 ±1 µA
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.
ELECTRICAL CHARACTERISTICS
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
UW
Efficiency vs Input Voltage
Efficiency vs Output Current
Efficiency vs Output Current
Efficiency vs Output Current
Reference Voltage vs
Temperature
Oscillator Frequency vs
Temperature
(From Figure1a Except for the Resistive Divider Resistor Values)
INPUT VOLTAGE (V)
2
50
EFFICIENCY (%)
55
65
70
75
100
85
3
4
3406 G01
60
90
95
80
5
6
I
OUT
= 600mA
V
OUT
= 1.8V
I
OUT
= 100mA
I
OUT
= 10mA
I
OUT
= 0.1mA
I
OUT
= 1mA
OUTPUT CURRENT (mA)
70
EFFICIENCY (%)
80
90
95
0.1 10 100 1000
3406 G02
60
1
85
75
65
V
OUT
= 1.2V
V
IN
= 2.7V
V
IN
= 4.2V
V
IN
= 3.6V
OUTPUT CURRENT (mA)
70
EFFICIENCY (%)
80
90
95
0.1 10 100 1000
3406 G03
60
1
85
75
65
V
OUT
= 1.5V
V
IN
= 2.7V
V
IN
= 4.2V
V
IN
= 3.6V
OUTPUT CURRENT (mA)
70
EFFICIENCY (%)
80
85
95
100
0.1 10 100 1000
3406 G04
60
1
90
75
65
V
OUT
= 2.5V
V
IN
= 2.7V
V
IN
= 4.2V
V
IN
= 3.6V
TEMPERATURE (°C)
–50
REFERENCE VOLTAGE (V)
0.614
0.609
0.604
0.599
0.594
0.589
0.584
25 75
–25 0
50 100 125
V
IN
= 3.6V
3406 G05
TEMPERATURE (°C)
–50
FREQUENCY (MHz)
1.70
1.65
1.60
1.55
1.50
1.45
1.40
1.35
1.30
25 75
–25 0
50 100 125
V
IN
= 3.6V
3406 G06