LTC3407EMSE Linear Technology, LTC3407EMSE Datasheet - Page 3

• Manufacturer Part Number: LTC3407EMSE
• Description: IC REG DC/DC DUAL 1.5MHZ 10-MSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC3407EMSE

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 0.6 ~ 5 V
• Current - Output: 1A
• Frequency - Switching: 1.5MHz
• Voltage - Input: 2.5 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP Exposed Pad, 10-HMSOP, 10-eMSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

ELECTRICAL CHARACTERISTICS
SYMBOL
I
f
f
I
R
I
POR
V
I
V
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 LTC3407E is guaranteed to meet specifi ed performance
from 0°C to 70°C. Specifi cations over the – 40°C and 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
TYPICAL PERFORMANCE CHARACTERISTICS
temperature range, otherwise specifi cations are at T
100mV/DIV
200mA/DIV
S
OSC
SYNC
LIM
SW(LKG)
RUN
RUN
MODE
DS(ON)
5V/DIV
V
OUT
SW
I
L
V
V
I
CIRCUIT OF FIGURE 1
Burst Mode Operation
LOAD
IN
OUT
= 3.6V
= 1.8V
= 50mA
PARAMETER
Input DC Supply Current
Oscillator Frequency
Synchronization Frequency
Peak Switch Current Limit
Top Switch On-Resistance
Bottom Switch On-Resistance
Switch Leakage Current
Power-On Reset Threshold
Power-On Reset On-Resistance
Power-On Reset Delay
RUN Threshold
RUN Leakage Current
Mode Threshold Low
Mode Threshold High
Active Mode
Sleep Mode
Shutdown
4μs/DIV
3407 G01
200mA/DIV
10mV/DIV
5V/DIV
V
OUT
SW
I
A
L
CONDITIONS
V
V
RUN = 0V, V
V
V
(Note 6)
(Note 6)
V
V
V
Pulse-Skipping Mode
= 25°C. V
V
V
I
CIRCUIT OF FIGURE 1
FB1
FB1
FBX
IN
IN
FBX
FBX
LOAD
IN
OUT
= 3V, V
= 5V, V
= 3.6V
= V
= V
= 0.6V
Ramping Up, MODE/SYNC = 0V
Ramping Down, MODE/SYNC = 0V
= 1.8V
The
= 50mA
FB2
FB2
FB
RUN
l
IN
= 0.5V
= 0.63V, MODE/SYNC = 3.6V
IN
= 0.5V, Duty Cycle <35%
denotes the specifi cations which apply over the full operating
= 3.6V, unless otherwise specifi ed. (Note 2)
= 5.5V, MODE/SYNC = 0V
= 0V, V
1μs/DIV
Note 3: The LTC3407 is tested in a proprietary test mode that connects V
to the output of the error amplifi er.
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.
FBX
= 0V
J
is calculated from the ambient T
3407 G02
200mV/DIV
500mA/DIV
500mA/DIV
●
●
●
I
V
LOAD
OUT
I
L
V
IN
Load Step
V
V
I
CIRCUIT OF FIGURE 1
LOAD
MIN
0.75
IN
OUT
1.2
0.3
0
– 0.5
J
= 3.6V
= T
= 1.8V
= 50mA TO 600mA
A
A
+ (P
and power dissipation P
262,144
0.35
0.30
0.01
–8.5
0.01
TYP
600
100
0.1
1.5
1.5
8.5
D
40
1
1
• θ
20μs/DIV
LTC3407
JA
).
MAX
1.25
0.45
0.45
800
200
1.8
1.5
0.5
V
60
1
1
1
IN
UNITS
Cycles
D
3407fa
3
3407 G03
MHz
MHz
μA
μA
μA
μA
μA
FB
%
%
Ω
Ω
Ω
A
V
V
V