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LTC3410ESC6-1.875#TRM

Description
LTC3410-1.875 - 2.25MHz, 300mA Synchronous Step-Down Regulator in SC70; Package: SC70; Pins: 6; Temperature Range: -40°C to 85°C
CategoryPower/power management    The power supply circuit   
File Size308KB,16 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Parametric View All

LTC3410ESC6-1.875#TRM Overview

LTC3410-1.875 - 2.25MHz, 300mA Synchronous Step-Down Regulator in SC70; Package: SC70; Pins: 6; Temperature Range: -40°C to 85°C

LTC3410ESC6-1.875#TRM Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?incompatible
MakerLinear ( ADI )
Parts packaging codeSC-70
package instructionVSSOP,
Contacts6
Manufacturer packaging codeSC6
Reach Compliance Codenot_compliant
ECCN codeEAR99
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
control modeCURRENT-MODE
Maximum input voltage5.5 V
Minimum input voltage2.5 V
Nominal input voltage3.6 V
JESD-30 codeR-PDSO-G6
JESD-609 codee0
length2 mm
Humidity sensitivity level1
Number of functions1
Number of terminals6
Maximum operating temperature85 °C
Minimum operating temperature
Maximum output current0.63 A
Package body materialPLASTIC/EPOXY
encapsulated codeVSSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)235
Certification statusNot Qualified
Maximum seat height1 mm
surface mountYES
Switch configurationBUCK
Maximum switching frequency2700 kHz
Temperature levelCOMMERCIAL EXTENDED
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
width1.25 mm
LTC3410
2.25MHz, 300mA
Synchronous Step-Down
Regulator in SC70
FEATURES
DESCRIPTIO
High Efficiency: Up to 96%
Low Ripple (20mV
P-P
) Burst Mode Operation: I
Q
26
µ
A
Low Output Voltage Ripple
300mA Output Current at V
IN
= 3V
380mA Minimum Peak Switch Current
2.5V to 5.5V Input Voltage Range
2.25MHz Constant Frequency Operation
No Schottky Diode Required
Low Dropout Operation: 100% Duty Cycle
Stable with Ceramic Capacitors
0.8V Reference Allows Low Output Voltages
Shutdown Mode Draws < 1µA Supply Current
±2%
Output Voltage Accuracy
Current Mode Operation for Excellent Line and
Load Transient Response
Overtemperature Protected
Available in Low Profile SC70 Package
The LTC
®
3410 is a high efficiency monolithic synchro-
nous buck regulator using a constant frequency, current
mode architecture. The device is available in adjustable
and fixed output voltage versions. Supply current during
operation is only 26µA, dropping to <1µA in shutdown.
The 2.5V to 5.5V input voltage range makes the LTC3410
ideally suited for single Li-Ion battery-powered applica-
tions. 100% duty cycle provides low dropout operation,
extending battery life in portable systems.
Switching frequency is internally set at 2.25MHz, allowing
the use of small surface mount inductors and capacitors.
The LTC3410 is specifically designed to work well with
ceramic output capacitors, achieving very low output
voltage ripple and a small PCB footprint.
The internal synchronous switch increases efficiency and
eliminates the need for an external Schottky diode. Low
output voltages are easily supported with the 0.8V feed-
back reference voltage. The LTC3410 is available in a tiny,
low profile SC70 package.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All
other trademarks are the property of their respective owners. Protected by U.S. Patents,
including 5481178, 6580258, 6304066, 6127815, 6498466, 6611131, 5994885.
APPLICATIO S
Cellular Telephones
Wireless and DSL Modems
Digital Cameras
MP3 Players
Portable Instruments
TYPICAL APPLICATIO
V
IN
2.7V
TO 5.5V
V
IN
RUN
V
FB
GND
SW
Efficiency and Power Loss
vs Output Current
100
1
90
V
OUT
2.5V
EFFICIENCY (%)
4.7µH
C
IN
4.7µF
CER
LTC3410
10pF
C
OUT
4.7µF
CER
80
70
60
50
40
30
20
10
0
0.1
V
IN
= 2.7V
V
IN
= 3.6V
V
IN
= 4.2V
1
10
100
OUTPUT CURRENT (mA)
POWER LOSS
EFFICIENCY
887k
412k
3410 TA01a
U
0.1
POWER LOSS (W)
U
U
0.01
0.001
0.0001
1000
3410 TA01b
3410fb
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