EEWORLDEEWORLDEEWORLD

Part Number

Search

LT3582

Description
I2C Programmable Boost and Single Inductor Inverting DC/DC Converters with OTP
File Size368KB,28 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Compare View All

LT3582 Overview

I2C Programmable Boost and Single Inductor Inverting DC/DC Converters with OTP

FEATURES
n
LT3582/LT3582-5/LT3582-12
I
2
C Programmable Boost
and Single Inductor Inverting
DC/DC Converters with OTP
DESCRIPTION
The LT
®
3582/LT3582-5/LT3582-12 are dual DC/DC convert-
ers featuring positive and negative outputs and integrated
feedback resistors. The LT3582, with its built in One Time
Programming (OTP), has configurable output settings via
the I
2
C interface, including output voltage settings, power
up sequencing, power down discharge, and output voltage
ramp rates. LT3582 settings can be changed adaptively in
the final product, or set during manufacturing and made
permanent using the built in non-volatile OTP memory.
The positive output voltage can be set between 3.2V and
12.775V in 25mV steps. The negative output voltage can
be set between –1.2V and –13.95V in –50mV steps. The
LT3582-5 and LT3582-12 are pre-configured at the factory
for ±5V and ±12V outputs respectively.
The LT3582 series includes two monolithic converters,
one Boost and one Inverting. The Boost converter has an
integrated power switch and output disconnect switch.
The Inverting converter uses a single inductor topology
and includes an integrated power switch. Both Boost and
Inverting converters use a novel** control scheme result-
ing in low output voltage ripple while allowing for high
conversion efficiency over a wide load current range. The
LT3582 series is available in a 16-pin 3mm x 3mm QFN.
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
* Input thresholds are reduced to allow communication with low voltage digital ICs.
(See Electrical Characteristics).
**Patent Pending
n
n
n
n
n
n
n
n
n
Output Voltages:
3.2V to 12.775V and –1.2V to –13.95V (LT3582)
5V and –5V (LT3582-5)
12V and –12V (LT3582-12)
Digitally Re-Programmable (LT3582) Via I
2
C for:
Output Voltages
Power Sequencing
Output Voltage Ramp Rates
Power-up Defaults Settable with Non-volatile OTP
(LT3582)
I
2
C Compatible Interface (Standard Mode*)
All Power Switches Integrated
350mA Current Limit (Boost)
600mA Current Limit (Inverting)
All Feedback Resistors Integrated
Input Voltage Range: 2.55V to 5.5V
Low Quiescent Current
325μA in Active Mode
0.01μA in Shutdown Mode
Integrated Output Disconnect
Tiny 16-pin 3mm × 3mm QFN Package
APPLICATIONS
n
n
n
AMOLED Power
CCD Power
General Purpose DC/DC Conversion
TYPICAL APPLICATION
±12V Supplies from a Single 5V Input
SWN
6.8μH
SWN
SHDN
V
IN
SWP
GND
LT3582
1μF
4.7μF
6.8μH
EFFICIENCY (%)
75
65
150
55
45
35
0.1
1
10
LOAD CURRENT (mA)
100
50
0
100
3582512 TA01b
3582512 TA01a
Efficiency and Power Loss
95
INPUT
4.5V TO 5.5V
V
OUTP
V
OUTN
350
300
250
200
POWER LOSS (mW)
85
V
NEG
–12V
85mA
I
2
C
INTERFACE
10μF
V
OUTN
SDA
SCL
CA
CAPP
CAPP
V
OUTP
V
PP
RAMPP RAMPN
10nF
4.7μF
V
POS
12V
80mA
(
OPTIONAL ON
LT3582-5/LT3582-12
)
10nF
3582512f
1

LT3582 Related Products

LT3582 LT3582-12 LT3582-5 LT3582EUD-12PBF LT3582EUD-12TRPBF LT3582EUD-5PBF LT3582EUD-5TRPBF LT3582EUDPBF LT3582EUDTRPBF
Description I2C Programmable Boost and Single Inductor Inverting DC/DC Converters with OTP I2C Programmable Boost and Single Inductor Inverting DC/DC Converters with OTP I2C Programmable Boost and Single Inductor Inverting DC/DC Converters with OTP I2C Programmable Boost and Single Inductor Inverting DC/DC Converters with OTP I2C Programmable Boost and Single Inductor Inverting DC/DC Converters with OTP I2C Programmable Boost and Single Inductor Inverting DC/DC Converters with OTP I2C Programmable Boost and Single Inductor Inverting DC/DC Converters with OTP I2C Programmable Boost and Single Inductor Inverting DC/DC Converters with OTP I2C Programmable Boost and Single Inductor Inverting DC/DC Converters with OTP
Looking for an Altera USB Blaster download cable?
I need an Altera USB Blaster download cable. I just started learning. I can't afford the expensive ones. Can you tell me the price? Thanks.This download cable is suitable for downloading and debugging...
yuanbao502 Buy&Sell
Looking for a circuit to connect a microcontroller to GTM900, with software preferred
RT, please help. 51 MCU and GTM900 connection circuit, I just need GPRS function. Thank you all...
beijk 51mcu
A foreign company in Beijing is recruiting for a high-tech biometric project
Hardware Engineer 1 personJob Description: 1. Design and optimize circuits, make prototypes, and cooperate with other software and hardware engineers to complete debugging2. Analyze and solve problems...
bing Embedded System
STM32 encryption problem: How to preset a Flash read protection and clear read protection program?
How to preset a Flash read protection and clear read protection program? Thank you...
fuqing5542 stm32/stm8
China Chip Recruitment. Listed on Shanghai Science and Technology Innovation Board, focusing on the research and development of IoT wireless communication chips and solutions. Salary open + stock
Founded in 2008 and located in Zhangjiang Microelectronics Port, Pudong, Shanghai, it is a research and development company focusing on wireless communication chips and solutions in the field of Inter...
乌拉辉和式 Recruitment
Can't recruit people with a monthly salary of 20,000? Where do young people go if they don't work in factories?
On March 10, Southern Metropolis Daily published a report titled "I've never seen such a thing before! Monthly salary of 20,000 yuan! Guangzhou bosses line up in long queues on the street to recruit p...
通宵敲代码 Talking about work

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 42  1501  785  570  1362  1  31  16  12  28 
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