ltc3406ab Linear Technology Corporation, ltc3406ab Datasheet - Page 3

• Manufacturer Part Number: ltc3406ab
• Description: 1.5mhz, 600ma Synchronous Step-down Regulator In Thinsot
• Manufacturer: Linear Technology Corporation

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
SYMBOL
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 LTC3406ABE 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.
Note 3: T
dissipation P
TYPICAL PERFORMANCE CHARACTERISTICS
(From Front Page Figure Except for the Resistive Divider Resistor Values)
RUN
RUN
LTC3406AB: T
J
is calculated from the ambient temperature T
D
according to the following formula:
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
J
0
PARAMETER
RUN Threshold
RUN Leakage Current
0.1
= T
2
Effi ciency vs Load Current
Effi ciency vs Input Voltage
V
V
OUT
OUT
A
+ (P
= 1.8V
= 2.5V
D
OUTPUT CURRENT (mA)
1
3
)(250°C/W)
INPUT VOLTAGE (V)
10
4
100
I
I
I
L
L
L
5
V
V
V
= 100mA
= 600mA
= 10mA
IN
IN
IN
3406B G03
= 2.7V
= 3.6V
= 4.2V
3406B G01
A
CONDITIONS
1000
and power
6
A
= 25°C. V
The
●
IN
denotes the specifi cations which apply over the full operating
= 3.6V unless otherwise specifi ed.
Note 4: The LTC3406AB 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.
Note7: Limited by long term current density considerations.
FB
to the output of the error amplifi er.
0.615
0.610
0.605
0.600
0.595
0.590
0.585
100
90
80
70
60
50
40
30
20
10
0
–50
0.1
Effi ciency vs Load Current
Reference Voltage vs
Temperature
V
V
IN
OUT
–25
= 3.6V
= 1.2V
OUTPUT CURRENT (mA)
●
●
1
0
TEMPERATURE (°C)
25
MIN
0.3
10
50
LTC3406AB
±0.01
75
TYP
100
1
V
V
V
IN
IN
IN
100
3406AB G21
3406B G02
= 2.7V
= 3.6V
= 4.2V
MAX
1000
125
1.5
±1
3406abfa
UNITS
3
μA
V