Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

LTC3547B Datasheet(PDF) 3 Page - Linear Technology

Part # LTC3547B
Description  Dual Monolithic 300mA Synchronous Step-Down Regulator
Download  16 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3547B Datasheet(HTML) 3 Page - Linear Technology

  LTC3547B_15 Datasheet HTML 1Page - Linear Technology LTC3547B_15 Datasheet HTML 2Page - Linear Technology LTC3547B_15 Datasheet HTML 3Page - Linear Technology LTC3547B_15 Datasheet HTML 4Page - Linear Technology LTC3547B_15 Datasheet HTML 5Page - Linear Technology LTC3547B_15 Datasheet HTML 6Page - Linear Technology LTC3547B_15 Datasheet HTML 7Page - Linear Technology LTC3547B_15 Datasheet HTML 8Page - Linear Technology LTC3547B_15 Datasheet HTML 9Page - Linear Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 3 / 16 page
background image
LTC3547B
3
3547bfb
VIN (V)
2.5
100
90
80
70
60
50
40
10
20
30
45
3547b G02
3
3.5
4.5
5.5
VOUT = 1.8V
IOUT = 0.1mA
IOUT = 1mA
IOUT = 10mA
IOUT = 100mA
IOUT = 300mA
10μs/DIV
VOUT
50mV/DIV
IL
50mA/DIV
SW,
AC-COUPLED
5V/DIV
3547b G01
VIN = 3.6V
VOUT = 1.8V
ILOAD = 1mA
TEMPERATURE (ºC)
–50
400
350
300
250
200
150
100
25
75
3547b G03
–25
0
50
100
ILOAD = 0A
VIN = 5.5V
VIN = 2.7V
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ΔVLINEREG
Reference Voltage Line Regulation
VIN = 2.5V to 5.5V
0.3
0.5
%/V
ΔVLOADREG
Output Voltage Load Regulation
ILOAD = 50mA to 300mA
0.5
%
IS
Input DC Supply Current
Active Mode (Note 4)
Shutdown
VFB1 = VFB2 = 0.95 × VFBREG
RUN1 = RUN2 = 0V, VIN = 5.5V
450
0.1
700
1
μA
μA
fOSC
Oscillator Frequency
VFB = 0.6V
1.8
2.25
2.7
MHz
ILIM
Peak Switch Current Limit
Channel 1 (300mA)
Channel 2 (300mA)
VIN = 2.5V, VFB < VFBREG, Duty Cycle < 35%
400
400
550
550
mA
mA
RDS(ON)
Channel 1 (Note 3)
Top Switch On-Resistance
Bottom Switch On-Resistance
Channel 2 (Note 3)
Top Switch On-Resistance
Bottom Switch On-Resistance
VIN = 3.6V, ISW = 100mA
VIN = 3.6V, ISW = 100mA
VIN = 3.6V, ISW = 100mA
VIN = 3.6V, ISW = 100mA
0.8
0.75
0.8
0.75
1.05
1.05
1.05
1.05
Ω
Ω
Ω
Ω
ISW(LKG)
Switch Leakage Current
VIN = 5V, VRUN = 0V
0.01
1
μA
tSOFTSTART
Soft-Start Time
VFB From 10% to 90% Full-Scale
0.450
0.650
0.850
ms
VRUN
RUN Threshold High
0.4
1
1.2
V
IRUN
RUN Leakage Current
0.01
1
μA
The denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 3.6V, unless otherwise noted.
ELECTRICAL CHARACTERISTICS
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 LTC3547BE is guaranteed to meet specified performance
from 0°C to 85°C. Specifications over the –40°C and 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls. The LTC3547BI is guaranteed over the
–40°C to 125°C operating temperature range.
Note 3: The DFN switch on-resistance is guaranteed by correlation to
wafer level measurements.
Note 4: Dynamic supply current is higher due to the internal gate charge
being delivered at the switching frequency.
Note 5: Guaranteed by long-term current density limitations.
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 specified maximum operating junction
temperature may impair device reliability.
Pulse Skip Mode Operation
Efficiency vs Input Voltage
Supply Current vs Temperature
TYPICAL PERFOR A CE CHARACTERISTICS T
A = 25°C unless otherwise specified.


Similar Part No. - LTC3547B_15

ManufacturerPart #DatasheetDescription
logo
Linear Integrated Syste...
LTC3547BEDDB LINEAR-LTC3547BEDDB Datasheet
278Kb / 16P
   Dual Monolithic 300mA Synchronous Step-Down Regulaor
More results

Similar Description - LTC3547B_15

ManufacturerPart #DatasheetDescription
logo
Linear Technology
LTC3547B LINER-LTC3547B Datasheet
253Kb / 16P
   Dual Monolithic 300mA Synchronous Step-Down Regulator
LTC3547 LINER-LTC3547_15 Datasheet
307Kb / 16P
   Dual Monolithic 300mA Synchronous Step-Down Regulator
LTC3547 LINER-LTC3547 Datasheet
302Kb / 16P
   Dual Monolithic 300mA Synchronous Step-Down Regulator
logo
Linear Integrated Syste...
LTC3547BEDDB LINEAR-LTC3547BEDDB Datasheet
278Kb / 16P
   Dual Monolithic 300mA Synchronous Step-Down Regulaor
logo
Linear Technology
LTC3419 LINER-LTC3419 Datasheet
255Kb / 16P
   Dual Monolithic 600mA Synchronous Step-Down Regulator
LTC3419 LINER-LTC3419_15 Datasheet
263Kb / 16P
   Dual Monolithic 600mA Synchronous Step-Down Regulator
logo
New Japan Radio
NJU7691 NJRC-NJU7691 Datasheet
138Kb / 8P
   300mA Synchronous Step-Down switching regulator IC
logo
Linear Technology
LTC3607EUD LINER-LTC3607EUD Datasheet
428Kb / 8P
   Dual 600mA 15V Monolithic Synchronous Step-Down Regulator
LTC1875 LINER-LTC1875_15 Datasheet
268Kb / 20P
   1.5A Monolithic Synchronous Step-Down Regulator
LTC1627 LINER-LTC1627_15 Datasheet
239Kb / 16P
   Monolithic Synchronous Step-Down Switching Regulator
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com