LTC3406A LINER [Linear Technology], LTC3406A Datasheet - Page 3

• Manufacturer Part Number: LTC3406A
• Description: 1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT
• Manufacturer: LINER [Linear Technology]

ELECTRICAL CHARACTERISTICS
SYMBOL
R
I
t
V
I
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 LTC3406AE is guaranteed to meet performance specifi cations
from 0°C to 85°C. Specifi cations over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls. The LTC3406AI is guaranteed to meet the
specifi ed performance over the full –40°C to 125°C operating temperature
range.
Note 3: T
dissipation P
TYPICAL PERFORMANCE CHARACTERISTICS
(From Front Page Figure Except for the Resistive Divider Resistor Values)
temperature range, otherwise specifi cations are at T
LSW
SOFT-START
RUN
RUN
NFET
LTC3406A: T
100
90
80
70
60
50
40
30
20
10
0
Effi ciency vs Input Voltage
2
J
V
is calculated from the ambient temperature T
OUT
D
according to the following formula:
= 1.8V
J
= T
3
INPUT VOLTAGE (V)
A
PARAMETER
R
SW Leakage
Soft-Start Time
RUN Threshold
RUN Leakage Current
+ (P
DS(ON)
D
)(250°C/W)
4
of N-Channel FET
I
I
I
L
L
L
5
= 10mA
= 100mA
= 600mA
3406A G01
6
A
100
and power
90
80
70
60
50
40
30
20
10
0
0.1
A
Effi ciency vs Load Current
V
= 25°C. V
OUT
CONDITIONS
I
V
V
SW
RUN
FB
= 1.2V
The
from 10% to 90% Full-Scale
= –100mA
= 0V, V
1
OUTPUT CURRENT (mA)
●
IN
denotes the specifi cations which apply over the full operating
= 3.6V unless otherwise specifi ed.
SW
10
= 0V or 5V, V
Note 4: The LTC3406A is tested in a proprietary test mode that connects
V
Note 5: Dynamic supply current is higher due to the gate charge being
delivered at the switching frequency.
Note 6: 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 specifi ed maximum operating junction
temperature may impair device reliability.
Note 7: Limited by long term current density considerations.
FB
to the output of the error amplifi er.
100
V
V
V
IN
IN
IN
IN
= 2.7V
= 3.6V
= 4.2V
3406A G02
= 5V
1000
100
●
●
90
80
70
60
50
40
30
20
10
0
0.1
Effi ciency vs Load Current
V
OUT
MIN
0.6
0.3
= 2.5V
1
OUTPUT CURRENT (mA)
±0.01
±0.01
0.21
TYP
LTC3406A
0.9
1
10
MAX
0.35
1.2
1.5
±1
±1
100
V
V
V
IN
IN
IN
= 2.7V
= 3.6V
= 4.2V
3406A G03
UNITS
3406afa
3
1000
ms
μA
μA
Ω
V