LTC3411EMS#TRPBF Linear Technology, LTC3411EMS#TRPBF Datasheet - Page 3

• Manufacturer Part Number: LTC3411EMS#TRPBF
• Description: IC CONV DC/DC SYNC STPDWN 10MSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC3411EMS#TRPBF

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.8 ~ 5 V
• Current - Output: 1.25A
• Frequency - Switching: 1MHz
• Voltage - Input: 2.63 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
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 LTC3411E is guaranteed to meet specifi ed performance from
0°C to 85°C. Specifi cations over the –40°C to 85°C operating termperature
range are assured by design, characterization and correlation with
statistical process controls. The LTC3411I is guaranteed to meet specifi ed
performance over the full –40°C to 125°C operating temperature range.
Note 3: The LTC3411 is tested in a feedback loop which servos V
midpoint for the error amplifi er (V
Note 4: Dynamic supply current is higher due to the internal gate charge
being delivered at the switching frequency.
SYMBOL
V
I
V
ΔV
ΔV
g
I
V
f
f
I
R
I
V
PGOOD
R
FB
S
OSC
SYNC
LIM
SW(LKG)
IN
FB
m(EA)
SHDN/RT
UVLO
DS(ON)
PGOOD
LINEREG
LOADREG
PARAMETER
Operating Voltage Range
Feedback Pin Input Current
Feedback Voltage
Reference Voltage Line Regulation
Output Voltage Load Regulation
Error Amplifi er Transconductance
Input DC Supply Current (Note 4)
Shutdown Threshold High
Active Oscillator Resistor
Oscillator Frequency
Synchronization Frequency
Peak Switch Current Limit
Top Switch On-Resistance (Note 6)
Bottom Switch On-Resistance (Note 6) V
Switch Leakage Current
Undervoltage Lockout Threshold
Power Good Threshold
Power Good Pull-Down On-Resistance
Active Mode
Sleep Mode
Shutdown
ITH
= 0.6V).
A
CONDITIONS
(Note 3)
V
I
I
I
V
V
V
R
(Note 7)
(Note 7)
I
V
V
V
V
V
TH
TH
TH
TH
IN
FB
SYNC/MODE
SHDN/RT
T
IN
IN
IN
IN
FB
FB
= 25°C. V
= 324k
= 0.36, (Note 3)
= 0.84, (Note 3)
Pin Load = ±5μA (Note 3)
= 1.3
= 2.7V to 5V
= 3.3V
= 3.3V
= 6V, V
Ramping Down
= 0.75V, SYNC/MODE = 3.3V
Ramping Up, SHDN/R
Ramping Down, SHDN/R
FB
to the
The
= 3.3V
ITH/RUN
l
= 3.3V, V
IN
denotes the specifi cations which apply over the full operating
= 3.3V, R
= 0V, V
Note 5: T
according to the following formula:
Note 6: Switch on-resistance is guaranteed by correlation to wafer level
measurements.
Note 7: 4MHz operation is guaranteed by design but not production tested
and is subject to duty cycle limitations (see Applications Information).
Note 8: 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.
FB
LTC3411DD: T
LTC3411MS: T
= 1V
FB
T
T
= 324k unless otherwise specifi ed. (Note 2)
= 1V
= 0V
T
J
= 1V
is calculated from the ambient T
J
J
= T
= T
A
A
l
l
l
+ (P
+ (P
D
D
2.625
0.784
2.375
• 43°C/W)
• 120°C/W)
MIN
0.85
0.4
1.6
V
IN
–0.02
A
324k
0.04
0.11
0.11
0.01
–7.6
TYP
800
240
118
0.8
0.02
0.1
2.5
62
and power dissipation P
6.8
– 0.6
1
2
LTC3411
V
IN
0.816
2.625
MAX
±0.1
–0.2
1.15
0.15
0.15
350
100
200
5.5
0.2
1M
0.2
1
– 0.4
4
4
1
UNITS
D
3411fb
3
MHz
MHz
MHz
%/V
μA
μS
μA
μA
μA
μA
%
%
%
%
Ω
Ω
Ω
Ω
V
V
V
A
V