EEWORLDEEWORLDEEWORLD

Part Number

Search

LTC3531EDD

Description
Conv DC-DC 1.8V to 5.5V Synchronous Non-Inverting/Inverting/Step Up/Step Down Single-Out 2V to 5V 8-Pin DFN EP
File Size533KB,16 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Download user manual Parametric View All

LTC3531EDD Overview

Conv DC-DC 1.8V to 5.5V Synchronous Non-Inverting/Inverting/Step Up/Step Down Single-Out 2V to 5V 8-Pin DFN EP

LTC3531EDD Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesNot Compliant
ECCN (US)EAR99
Part StatusUnconfirmed
HTS8542.39.00.01
SVHCYes
SVHC Exceeds ThresholdYes
TypeStep Down|Step Up|Inverting|Synchronous Non-Inverting
Output TypeAdjustable
Switching RegulatorYes
Number of Outputs1
Output Voltage (V)2 to 5
Minimum Input Voltage (V)1.8
Maximum Input Voltage (V)5.5
Operating Supply Voltage (V)1.8 to 5.5
Typical Quiescent Current (uA)16
Efficiency (%)90
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeExtended
Pin Count8
Standard Package NameDFN
Supplier PackageDFN EP
MountingSurface Mount
Package Height0.75(Max)
Package Length3
Package Width3
PCB changed8
Lead ShapeNo Lead
LTC3531/
LTC3531-3.3/LTC3531-3
200mA Buck-Boost
Synchronous DC/DC
Converters
FEATURES
DESCRIPTIO
Regulated Output with Input Above, Below or Equal
to the Output
Single Inductor
Up to 90% Efficiency
V
IN
Range: 1.8V to 5.5V
200mA at 3.3V
OUT
from 3.6V Input
125mA at 3V
OUT
from 2.5V Input
Fixed V
OUT
Versions (TSOT, DFN): 3.3V, 3V
Adjustable V
OUT
Version (DFN): 2V to 5V
Burst Mode
®
Operation, No External Compensation
Ultra Low Quiescent Current: 16μA, Shutdown
Current <1μA
Only 3 External Components Required
(Fixed Voltage Versions)
Short-Circuit Protection
Output Disconnect in Shutdown
Available in 6-Pin ThinSOT and 3mm
×
3mm DFN
Packages
The LTC
®
3531/LTC3531-3.3/LTC3531-3 are synchronous
buck-boost DC/DC converters that operate from input
voltages above, below or equal to the output voltage. The
topology incorporated in the ICs provides a continuous
transfer through all operating modes, making the product
ideal for single cell Li-Ion and multicell alkaline or nickel
applications. The converters operate in Burst Mode, mini-
mizing solution footprint and component count as well as
providing high conversion efficiency over a wide range of
load currents.
The devices include two 0.5Ω N-channel MOSFET switches
and two P-channel switches (0.5Ω, 0.8Ω). Quiescent
current is typically 16μA, making the parts ideal for bat-
tery power applications. Other features include a <1μA
shutdown current, current limiting, thermal shutdown
and output disconnect. The parts are offered in a 6-pin
ThinSOT
TM
package for fixed voltage versions or a 3mm
×
3mm DFN package for fixed and adjustable versions.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
Burst Mode is a registered trademark of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Protected by U.S. Patents including 6166527.
APPLICATIO S
Handheld Instruments
MP3 Players
Handheld computers
PDA/GPS
TYPICAL APPLICATIO
10μH
SW1
V
IN
100
95
90
EFFICIENCY (%)
V
IN
3.1V TO
4.2V
Li-Ion
SW2
V
OUT
V
OUT
3.3V
160mA
10μF
SHDN
GND
70
3531 TA01a
85
80
75
+
LTC3531-3.3
2.2μF
65
ON OFF
60
1.5
2
2.5
3.3V
OUT
AT 100mA
3 3.5 4 4.5
INPUT VOLTAGE (V)
5
5.5
U
Efficiency vs V
IN
BOOST
MODE
BUCK
MODE
4SW
MODE
3531 TA01b
U
U
3531fb
1
Agilent Instruments for Testing Solar Arrays, Inverters and Fuel Cells
[b][color=#7a95d2]Agilent SAS (Solar Cell Simulator)[/color][/b] When you design new energy related products, you will need fast programmable voltage source/current source that can simulate the output...
安_然 Energy Infrastructure?
When posting, when inviting others to participate, can you directly write the names of multiple people and submit them together, which can save time
When posting, when inviting others to participate, can I directly write the names of multiple people and submit them together? This can save time. For example, the enthusiastic heroes who often answer...
深圳小花 Suggestions & Announcements
A brief discussion on how to learn Linux
A brief discussion on how to learn linux 1. Why should you learn linux? Of course, the most important thing is hobbies and interests! If you have to learn it, or don't like it at all, please don't was...
maker Linux and Android
Problems with burning the program on the board
The chip of the board is STM32F103C8 series. The first time I used JLink to burn the program, I could not do it. I had to unlock the board every time to burn the program. Can you experts explain it to...
终极菜鸟 stm32/stm8
CC2530 cannot receive data through the serial port after entering PM2?
The cc2530 can only receive serial port information for a few seconds after reset without entering PM2, but after entering PM2, the serial port cannot receive information. What is going on, experts?...
lxc1112 RF/Wirelessly
Methods to easily detect shorts, opens, and bad power connections
Designers often face a host of challenges when generating a clean signal for remote industrial applications, and among them they must be able to detect shorts, opens, and bad power connections for the...
安_然 Analog electronics

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 979  701  1821  1368  685  20  15  37  28  14 
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