EEWORLDEEWORLDEEWORLD

Part Number

Search

DC143A-D

Description
board eval for ltc1475cms8
CategoryDevelopment board/suite/development tools   
File Size236KB,8 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance  
Download Datasheet View All

DC143A-D Online Shopping

Suppliers Part Number Price MOQ In stock  
DC143A-D - - View Buy Now

DC143A-D Overview

board eval for ltc1475cms8

DEMO MANUAL DC143
NO DESIGN SWITCHER
DEMO MANUAL DC143
LTC1474/LTC1475
10µA I
Q
, High Efficiency,
Step-Down DC/DC
Converter
10µA (typical) is required to regulate the output. The parts
can be shut down to further reduce the supply current to
6µA (typical). In dropout, the internal P-channel MOSFET
is turned on continuously (100% duty cycle), providing
low dropout operation with V
OUT
V
IN
. An onboard low-
battery detector allows the user to monitor the input
supply through an external resistive divider. This board is
intended for applications such as cellular phones, GSM
systems, 4mA to 20mA current-loop pirate supplies or any
portable battery-powered application.
Gerber files for this
circuit board are available. Call the LTC factory.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Burst Mode is a trademark of Linear Technology Corporation.
DESCRIPTIO
This demonstration circuit is a step-down (buck) regulator
using the LTC
®
1474/LTC1475. The exclusive use of surface
mount components and the LTC1474/LTC1475 in the tiny
MSOP package results in a highly efficient application in a
small board space. This demo board highlights the
capabilities of the LTC1474/LTC1475, which use a current
mode, constant off-time architecture to switch an internal
P-channel power MOSFET. This results in a power supply
that has low ripple and fast transient response. At low
output currents the LTC1474/LTC1475 automatically
switch to Burst Mode
TM
operation to maintain high operating
efficiencies and minimize supply current. At no load,only
PERFORmANCE SU
SYMBOL
V
IN
V
OUT
PARAMETER
Input Voltage Range
Output Voltage
I
OUT
I
Q
Maximum Output Current
Typical Supply Current
TYPICAL PERFOR A CE CHARACTERISTICS A D BOARD PHOTO
Board A, B, D, E Efficiency
100
V
IN
= 5V
90
V
IN
= 10V
V
IN
= 15V
Demo Board A
EFFICIENCY (%)
80
70
60
L = 100µH
V
OUT
= 3.3V
R
SENSE
= 0Ω
3
30
0.3
LOAD CURRENT (mA)
300
DM143 TPC
50
0.03
DM143 DB A
U
WW
U W
U
ARY
CONDITIONS
V
OUT
= 3.3V
V
OUT
= 5V
LTC1474/LTC1475
LTC1474-3.3/LTC1475-3.3
LTC1474-5/LTC1475-5
R
SENSE
= 0Ω
R
SENSE
= 0.25Ω
V
IN
= 10V, I
LOAD
= 0
V
IN
= 10V, I
LOAD
= 0
U W
BOARD SUFFIX
A, B, D, E
C, F
A, D
B, E
C, F
ALL
ALL
A, B, C
D, E, F
VALUE
3.3V to 18V
5V to 18V
3.3V
±
0.10V
3.3V
±
0.10V
5V
±
0.15V
300mA
150mA
10µA
15µA
Demo Board D
DM143 DB D
1
I didn't learn 51. I did learn a little bit about msp430. Now I want to learn stm32. Which type of development board is better to buy? Please give me some advice...
I didn't learn 51. I did learn a little bit about msp430. Now I want to learn stm32. Which type of development board is better to buy? Please give me some advice......
m430 stm32/stm8
A friend's advice~~
Early in the morning, I was pleasantly surprised to receive a message from my friend Yangguang Ye. Haha, I was touched and it also made me think more.The information section is as follows:Sunny Night:...
soso Talking
Verilog HDL syntax shared with everyone
Sharing the classic and commonly used Verilog HDL syntax with everyone!...
eeleader FPGA/CPLD
About the problem of connecting STM32 network port to router
I used STM32F107+DP83838 to form a TCP service test. There was no problem in the test between the computer and the board, and between the switch and the board. However, as long as it was connected to ...
zcbmd MCU
Have you seen it? The heat sink symbol in the schematic diagram
[i=s] This post was last edited by qwqwqw2088 on 2019-4-15 07:38 [/i] [size=4][color=#555555][font="]Sometimes in the circuit schematics downloaded from TI's official website, there are symbols like t...
qwqwqw2088 Analogue and Mixed Signal
Why choose coldfire?
Many people who promote other types of MCUs on the Internet have written "Why choose xxx". I also wrote one for Freescale Coldfire. Although it is inevitably emotional, I believe that mine is more obj...
bluehacker NXP MCU

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1740  267  401  379  1784  36  6  9  8  10 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号