LTC3410
ELECTRICAL CHARACTERISTICS
The
IN
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are T = 25°C.
A
V
= 3.6V unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
UVLO
Undervoltage Lockout Threshold
V
V
Rising
Falling
2
1.94
2.3
V
V
IN
IN
I
f
Input DC Bias Current
Burst Mode® Operation
Shutdown
(Note 4)
S
V
V
= 0.83V or V
= 104%, I = 0A
LOAD
26
0.1
35
1
µA
µA
FB
OUT
= 0V
RUN
Oscillator Frequency
V
V
= 0.8V or V = 100%
OUT
= 0V or V
●
1.8
0.3
2.25
310
2.7
MHz
kHz
OSC
FB
FB
= 0V
OUT
R
R
R
R
of P-Channel FET
of N-Channel FET
I
I
= 100mA
0.75
0.55
±0.01
1
0.9
0.7
±1
1.5
±1
Ω
Ω
PFET
NFET
LSW
DS(ON)
SW
SW
= –100mA
= 0V, V = 0V or 5V, V = 5V
DS(ON)
I
SW Leakage
V
µA
V
RUN
SW
IN
V
RUN Threshold
RUN Leakage Current
●
●
RUN
RUN
I
±0.01
µA
Burst Mode is a registered trademark of Linear Technology Corporation.
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC3410E is guaranteed to meet performance specifications
from 0°C to 85°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 4: Dynamic supply current is higher due to the gate charge being
delivered at the switching frequency.
Note 5: This IC includes overtemperature protection that is intended to
protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
Note 3: T is calculated from the ambient temperature T and power
J
A
dissipation P according to the following formula:
D
LTC3410: T = T + (P )(250°C/W)
J
A
D
U W
TYPICAL PERFOR A CE CHARACTERISTICS
(From Figure1 Except for the Resistive Divider Resistor Values)
Efficiency vs Output Current
Efficiency vs Input Voltage
Efficiency vs Output Current
100
100
100
90
80
70
60
50
40
30
I
= 100mA
OUT
90
80
70
60
50
40
30
20
90
80
70
60
50
40
30
20
I
= 10mA
OUT
I
= 250mA
OUT
I
= 1mA
OUT
I
= 0.1mA
OUT
V
V
V
= 2.7V
= 3.6V
= 4.2V
V
V
V
= 2.7V
= 3.6V
= 4.2V
IN
IN
IN
IN
IN
IN
10
0
0.1
10
0
0.1
V
= 1.8V
1
V
= 1.2V
1
V
= 1.8V
OUT
OUT
OUT
4.5
INPUT VOLTAGE (V)
5.5
10
100
1000
10
100
1000
2.5
3
3.5
4
5
OUTPUT CURRENT (mA)
OUTPUT CURRENT (mA)
3410 G03
3410 G04
3410 G02
3410fb
3
Linear [ Linear ]
