LTC3407EMSE-2 Linear Technology, LTC3407EMSE-2 Datasheet - Page 3

• Manufacturer Part Number: LTC3407EMSE-2
• Description: IC,SMPS CONTROLLER,CURRENT-MODE,CMOS,TSSOP,10PIN,PLASTIC
• Manufacturer: Linear Technology

temperature range, otherwise specifications are at T
SYMBOL
POR
V
I
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC3407-2E is guaranteed to meet specified performance
from 0°C to 70°C. Specifications over the – 40°C and 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3: The LTC3407-2 is tested in a proprietary test mode that connects
100mV/DIV
200mA/DIV
ELECTRICAL CHARACTERISTICS
TYPICAL PERFOR A CE CHARACTERISTICS
RUN
RUN
100
5V/DIV
95
90
85
80
75
70
65
60
V
OUT
SW
2
Efficiency vs Input Voltage
I
1mA
L
800mA
V
Burst Mode OPERATION
CIRCUIT OF FIGURE 1
OUT
Burst Mode Operation
V
V
I
CIRCUIT OF FIGURE 1
LOAD
IN
OUT
= 1.8V
= 3.6V
= 1.8V
= 100mA
3
INPUT VOLTAGE (V)
10mA
PARAMETER
Power-On Reset Threshold
Power-On Reset On-Resistance
Power-On Reset Delay
RUN Threshold
RUN Leakage Current
2µs/DIV
4
100mA
W
5
3407 G04
3407 G01
U
6
200mA/DIV
10mV/DIV
5V/DIV
V
2.5
2.4
2.3
2.2
2.1
2.0
OUT
SW
I
–50
L
A
Oscillator Frequency vs
Temperature
V
V
I
CIRCUIT OF FIGURE 1
= 25°C. V
Pulse Skipping Mode
V
LOAD
IN
OUT
IN
CONDITIONS
V
V
–25
FBX
FBX
= 3.6V
= 3.6V
= 1.8V
= 20mA
The
Ramping Up, MODE/SYNC = 0V
Ramping Down, MODE/SYNC = 0V
0
●
TEMPERATURE (°C)
IN
denotes the specifications which apply over the full operating
= 3.6V, unless otherwise specified. (Note 2)
25
1µs/DIV
V
Note 4: Dynamic supply current is higher due to the internal gate charge
being delivered at the switching frequency.
Note 5: T
according to the following formula: T
Note 6: The DFN switch on-resistance is guaranteed by correlation to
wafer level measurements.
FB
50
to the output of the error amplifier.
75
J
is calculated from the ambient T
100
3407 G05
T
3407 G02
A
= 25°C unless other wise specified.
125
200mV/DIV
500mA/DIV
500mA/DIV
I
V
LOAD
OUT
–10
●
●
– 2
– 4
– 6
– 8
10
I
L
8
6
4
2
0
Load Step
2
V
V
I
CIRCUIT OF FIGURE 1
LOAD
Oscillator Frequency vs Supply
Voltage
IN
OUT
J
MIN
= 3.6V
0.3
= T
= 1.8V
= 80mA TO 800mA
A
A
+ (P
3
and power dissipation P
SUPPLY VOLTAGE (V)
262,144
LTC3407-2
–8.5
0.01
D
TYP
100
8.5
1
• θ
20µs/DIV
JA
4
).
MAX
200
1.5
1
sn34072 34072fs
5
UNITS
Cycles
3407 G06
D
3407 G03
3
µA
%
%
Ω
6
V