Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

LTC3862-1 Datasheet(PDF) 1 Page - Linear Technology

Part # LTC3862-1
Description  PolyPhase Synchronous Boost Controller
Download  36 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3862-1 Datasheet(HTML) 1 Page - Linear Technology

  LTC3862-1 Datasheet HTML 1Page - Linear Technology LTC3862-1 Datasheet HTML 2Page - Linear Technology LTC3862-1 Datasheet HTML 3Page - Linear Technology LTC3862-1 Datasheet HTML 4Page - Linear Technology LTC3862-1 Datasheet HTML 5Page - Linear Technology LTC3862-1 Datasheet HTML 6Page - Linear Technology LTC3862-1 Datasheet HTML 7Page - Linear Technology LTC3862-1 Datasheet HTML 8Page - Linear Technology LTC3862-1 Datasheet HTML 9Page - Linear Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 1 / 36 page
background image
LTC3787
1
3787fc
n Industrial
n Automotive
n Medical
n Military
TYPICAL APPLICATION
n 2-Phase Operation Reduces Required Input and
Output Capacitance and Power Supply Induced Noise
n Synchronous Operation for Highest Efficiency and
Reduced Heat Dissipation
n Wide VIN Range: 4.5V to 38V (40V Abs Max) and
Operates Down to 2.5V After Start-Up
n Output Voltage Up to 60V
n ±1% 1.200V Reference Voltage
n RSENSE or Inductor DCR Current Sensing
n 100% Duty Cycle Capability for Synchronous MOSFET
n Low Quiescent Current: 135μA
n Phase-Lockable Frequency (75kHz to 850kHz)
n Programmable Fixed Frequency (50kHz to 900kHz)
n Power Good Output Voltage Monitor
n Low Shutdown Current, IQ < 8μA
n Internal LDO Powers Gate Drive from VBIAS or EXTVCC
n Thermally Enhanced Low Profile 28-Pin 4mm × 5mm
QFN Package and Narrow SSOP Package
FEATURES
DESCRIPTION
PolyPhase Synchronous
Boost Controller
The LTC®3787 is a high performance PolyPhase® single
output synchronous boost converter controller that drives
two N-channel power MOSFET stages out-of-phase.
Multiphase operation reduces input and output capacitor
requirements and allows the use of smaller inductors than
the single-phase equivalent. Synchronous rectification in-
creases efficiency, reduces power losses and eases thermal
requirements, enabling high power boost applications.
A 4.5V to 38V input supply range encompasses a wide
range of system architectures and battery chemistries.
When biased from the output of the boost converter or
another auxiliary supply, the LTC3787 can operate from
an input supply as low as 2.5V after start-up. The operat-
ing frequency can be set for a 50kHz to 900kHz range or
synchronized to an external clock using the internal PLL.
PolyPhase operation allows the LTC3787 to be configured
for 2-, 3-, 4-, 6- and 12-phase operation.
The SS pin ramps the output voltage during start-up. The
PLLIN/MODE pin selects Burst Mode® operation, pulse-
skipping mode or forced continuous mode at light loads.
APPLICATIONS
L, LT, LTC, LTM, Linear Technology, the Linear logo, Burst Mode, OPTI-LOOP and PolyPhase
are registered trademarks and No RSENSE and ThinSOT are trademarks of Linear Technology
Corporation. All other trademarks are the property of their respective owners. Protected by
U. S. Patents, including 5408150, 5481178, 5705919, 5929620, 6144194, 6177787, 6580258.
15nF
4.7μF
8.66k
12.1k
VOUT
24V AT 10A
VIN
VIN 4.5V TO 24V START-UP VOLTAGE
OPERATES THROUGH TRANSIENTS DOWN TO 2.5V
0.1μF
100pF
220μF
TG1
BOOST1
SW1
BG1
FREQ
SS SGND
SENSE1+
SENSE1
VFB
ITH
VBIAS
LTC3787
INTVCC
PLLIN/MODE
TG2
BOOST2
SW2
BG2
SENSE2+
SENSE2
PGND
0.1μF
0.1μF
4.7μF
232k
3787 TA01a
47μF
3.3μH
3.3μH
4mΩ
4mΩ
12V to 24V/10A 2-Phase Synchronous Boost Converter
OUTPUT CURRENT (A)
40
50
60
70
80
3787 TA01b
30
20
10
0
90
100
10
100
1000
1
0.1
10000
0.01
0.1
1
10
BURST EFFICIENCY
BURST LOSS
VIN = 12V
VOUT = 24V
Burst Mode OPERATION
FIGURE 10 CIRCUIT
0.0001 0.001
0.00001
Efficiency and Power Loss
vs Output Current


Similar Part No. - LTC3862-1

ManufacturerPart #DatasheetDescription
logo
Linear Technology
LTC3862-1 LINER-LTC3862-1 Datasheet
738Kb / 40P
   Multi-Phase Current Mode Step-Up DC/DC Controller
LTC3862-1 LINER-LTC3862-1 Datasheet
523Kb / 38P
   60V PolyPhase Synchronous Boost Controller
LTC3862-1 LINER-LTC3862-1 Datasheet
302Kb / 20P
   No RSENSE Current Mode Boost DC/DC Controller
logo
Analog Devices
LTC3862-1 AD-LTC3862-1 Datasheet
1Mb / 48P
   PolyPhase Synchronous Boost Controller with PMBus Interface
logo
Linear Technology
LTC3862-1 LINER-LTC3862-1_15 Datasheet
1Mb / 42P
   Multi-Phase Current Mode Step-Up DC/DC Controller
More results

Similar Description - LTC3862-1

ManufacturerPart #DatasheetDescription
logo
Linear Technology
LTC3787 LINER-LTC3787_15 Datasheet
372Kb / 36P
   PolyPhase Synchronous Boost Controller
LTC3784 LINER-LTC3784_15 Datasheet
523Kb / 38P
   60V PolyPhase Synchronous Boost Controller
LTC3784 LINER-LTC3784 Datasheet
523Kb / 38P
   60V PolyPhase Synchronous Boost Controller
logo
Analog Devices
LTC7841 AD-LTC7841 Datasheet
1Mb / 48P
   PolyPhase Synchronous Boost Controller with PMBus Interface
logo
Shenzhen Huazhimei Semi...
HM5174 HMSEMI-HM5174 Datasheet
968Kb / 12P
   SYNCHRONOUS BOOST CONTROLLER
logo
Rohm
BD8303MUV ROHM-BD8303MUV_15 Datasheet
1Mb / 27P
   Synchronous Buck-Boost Controller
logo
Linear Technology
LTC1629-6 LINER-LTC1629-6 Datasheet
300Kb / 28P
   PolyPhase, Synchronous
logo
Feeling Technology Corp...
FP5202 FEELING-FP5202 Datasheet
342Kb / 10P
   Non-Synchronous PWM Boost Controller
logo
Linear Technology
LT3762 LINER-LT3762 Datasheet
2Mb / 34P
   60V Synchronous Boost LED Controller
logo
Texas Instruments
LM5122 TI1-LM5122_16 Datasheet
2Mb / 49P
[Old version datasheet]   Wide-Input Synchronous Boost Controller
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36


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