Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

LT1074CT Datasheet(PDF) 1 Page - Linear Technology

Part # LT1074CT
Description  Step-Down Switching 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

LT1074CT Datasheet(HTML) 1 Page - Linear Technology

  LT1074CT Datasheet HTML 1Page - Linear Technology LT1074CT Datasheet HTML 2Page - Linear Technology LT1074CT Datasheet HTML 3Page - Linear Technology LT1074CT Datasheet HTML 4Page - Linear Technology LT1074CT Datasheet HTML 5Page - Linear Technology LT1074CT Datasheet HTML 6Page - Linear Technology LT1074CT Datasheet HTML 7Page - Linear Technology LT1074CT Datasheet HTML 8Page - Linear Technology LT1074CT Datasheet HTML 9Page - Linear Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 1 / 16 page
background image
LT1074/LT1076
1
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
FEATURES
DESCRIPTIO
TYPICAL APPLICATIO
Step-Down Switching
Regulator
The LT
®1074 is a 5A (LT1076 is rated at 2A) monolithic
bipolar switching regulator which requires only a few
external parts for normal operation. The power switch, all
oscillator and control circuitry, and all current limit com-
ponents, are included on the chip. The topology is a classic
s
Buck Converter with Output Voltage Range of 2.5V
to 50V
s
Tapped-Inductor Buck Converter with 10A Output
at 5V
s
Positive-to-Negative Converter
s
Negative Boost Converter
s
Multiple Output Buck Converter
s
5A Onboard Switch (LT1074)
s
100kHz Switching Frequency
s
Greatly Improved Dynamic Behavior
s
Available in Low Cost 5 and 7-Lead Packages
s
Only 8.5mA Quiescent Current
s
Programmable Current Limit
s
Operates Up to 60V Input
s
Micropower Shutdown Mode
positive “buck” configuration but several design innova-
tions allow this device to be used as a positive-to-negative
converter, a negative boost converter, and as a flyback
converter. The switch output is specified to swing 40V
below ground, allowing the LT1074 to drive a tapped-
inductor in the buck mode with output currents up to 10A.
The LT1074 uses a true analog multiplier in the feedback
loop. This makes the device respond nearly instanta-
neously to input voltage fluctuations and makes loop gain
independent of input voltage. As a result, dynamic behav-
ior of the regulator is significantly improved over previous
designs.
On-chip pulse by pulse current limiting makes the LT1074
nearly bust-proof for output overloads or shorts. The input
voltage range as a buck converter is 8V to 60V, but a self-
boot feature allows input voltages as low as 5V in the
inverting and boost configurations.
The LT1074 is available in low cost TO-220 or TO-3
packages with frequency pre-set at 100kHz and current
limit at 6.5A (LT1076 = 2.6A). A 7-pin TO-220 package is
also available which allows current limit to be adjusted
down to zero. In addition, full micropower shutdown can
be programmed. See Application Note 44 for design
details.
A fixed 5V output, 2A version is also available. See LT1076-5.
Buck Converter Efficiency
Basic Positive Buck Converter
+
+
VSW
VIN
VC
GND
FB
LT1074
5V
5A
C1
500
µF
R1
2.8k
1%
R2
2.21k
1%
MBR745*
10V TO 40V
C3
200
µF
R3
2.7k
C2
0.01
µF
L1**
50
µH (LT1074)
100
µH (LT1076)
USE MBR340 FOR LT1076
COILTRONICS #50-2-52 (LT1074)
#100-1-52 (LT1076)
PULSE ENGINEERING, INC.
#PE-92114 (LT1074)
#PE-92102 (LT1076)
HURRICANE
#HL-AK147QQ (LT1074)
#HL-AG210LL (LT1076)
RIPPLE CURRENT RATING
≥ IOUT/2
*
**
LT1074•TA01
25V
OUTPUT LOAD CURRENT (A)
0
60
70
80
90
12
3
4
LT1074•TPC27
5
6
100
50
L = 50
µH TYPE 52 CORE
DIODE = MBR735
V
= 5V, V
= 15V
OUT
IN
V
= 12V, V
= 20V
OUT
IN
LT1074


Similar Part No. - LT1074CT

ManufacturerPart #DatasheetDescription
logo
Linear Technology
LT1074 LINER-LT1074 Datasheet
190Kb / 16P
   Step-Down Switching Regulator
LT1074 LINER-LT1074 Datasheet
190Kb / 16P
   Step-Down Switching Regulator
LT1074I LINER-LT1074I Datasheet
190Kb / 16P
   Step-Down Switching Regulator
LT1074 LINER-LT1074_15 Datasheet
190Kb / 16P
   Step-Down Switching Regulator
More results

Similar Description - LT1074CT

ManufacturerPart #DatasheetDescription
logo
Linear Technology
LT1176 LINER-LT1176 Datasheet
178Kb / 4P
   Step-Down Switching Regulator
logo
Sanyo Semicon Device
LV58761MX SANYO-LV58761MX Datasheet
641Kb / 7P
   Step-down Switching Regulator
LV5807MX SANYO-LV5807MX Datasheet
206Kb / 5P
   Step-down Switching Regulator
logo
Linear Technology
LT1074 LINER-LT1074_15 Datasheet
190Kb / 16P
   Step-Down Switching Regulator
logo
ON Semiconductor
LV5980MD ONSEMI-LV5980MD Datasheet
718Kb / 20P
   Step-down Switching Regulator
October, 2013
LV5762QA ONSEMI-LV5762QA Datasheet
290Kb / 6P
   Step-down Switching Regulator
May, 2014
NCV8925 ONSEMI-NCV8925 Datasheet
172Kb / 14P
   Step-down Switching Regulator
April, 2008 - Rev. 0
logo
Sanyo Semicon Device
LV5809MX SANYO-LV5809MX Datasheet
120Kb / 5P
   Step-down Switching Regulator
LV5725JA SANYO-LV5725JA Datasheet
269Kb / 8P
   Step-down Switching Regulator
LV5803M-TE-L-E SANYO-LV5803M-TE-L-E Datasheet
119Kb / 6P
   Step-down Switching Regulator
LV5858M SANYO-LV5858M Datasheet
250Kb / 9P
   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