EEWORLDEEWORLDEEWORLD

Part Number

Search

LT3412AEUF#TRPBF

Description
IC 3 A SWITCHING REGULATOR, 4 kHz SWITCHING FREQ-MAX, PQCC16, 4 X 4 MM, LEAD FREE, PLASTIC, QFN-16, Switching Regulator or Controller
CategoryPower/power management    The power supply circuit   
File Size267KB,20 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance  
Download Datasheet Parametric View All

LT3412AEUF#TRPBF Overview

IC 3 A SWITCHING REGULATOR, 4 kHz SWITCHING FREQ-MAX, PQCC16, 4 X 4 MM, LEAD FREE, PLASTIC, QFN-16, Switching Regulator or Controller

LT3412AEUF#TRPBF Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerLinear ( ADI )
Parts packaging codeQFN
package instructionHVQCCN,
Contacts16
Reach Compliance Codecompliant
ECCN codeEAR99
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
control modeCURRENT-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage5.5 V
Minimum input voltage2.25 V
Nominal input voltage3.3 V
JESD-30 codeS-PQCC-N16
JESD-609 codee3
length4 mm
Humidity sensitivity level1
Number of functions1
Number of terminals16
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output current3 A
Package body materialPLASTIC/EPOXY
encapsulated codeHVQCCN
Package shapeSQUARE
Package formCHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)250
Certification statusNot Qualified
Maximum seat height0.8 mm
surface mountYES
Switch configurationBUCK-BOOST
Maximum switching frequency4 kHz
Temperature levelINDUSTRIAL
Terminal surfaceMATTE TIN
Terminal formNO LEAD
Terminal pitch0.65 mm
Terminal locationQUAD
Maximum time at peak reflow temperatureNOT SPECIFIED
width4 mm
LTC3412A
3A, 4MHz, Monolithic
Synchronous Step-Down Regulator
FEATURES
DESCRIPTIO
High Efficiency: Up to 95%
3A Output Current
Low Quiescent Current: 64μA
Low R
DS(ON)
Internal Switch: 77mΩ
2.25V to 5.5V Input Voltage Range
Programmable Frequency: 300KHz to 4MHz
±2%
Output Voltage Accuracy
0.8V Reference Allows Low Output Voltage
Selectable Forced Continuous/Burst Mode
®
operation
with Adjustable Burst Clamp
Synchronizable Switching Frequency
Low Dropout Operation: 100% Duty Cycle
Power Good Output Voltage Monitor
Overtemperature Protected
Available in 16-Lead Exposed Pad TSSOP and QFN
Packages
The LTC
®
3412A is a high efficiency monolithic synchro-
nous, step-down DC/DC converter utilizing a constant
frequency, current mode architecture. It operates from an
input voltage range of 2.25V to 5.5V and provides a
regulated output voltage from 0.8V to 5V while delivering
up to 3A of output current. The internal synchronous
power switch with 77mΩ on-resistance increases effi-
ciency and eliminates the need for an external Schottky
diode. Switching frequency is set by an external resistor or
can be synchronized to an external clock. 100% duty cycle
provides low dropout operation extending battery life in
portable systems. OPTI-LOOP
®
compensation allows the
transient response to be optimized over a wide range of
loads and output capacitors.
The LTC3412A can be configured for either Burst Mode
operation or forced continuous operation. Forced continu-
ous operation reduces noise and RF interference while
Burst Mode operation provides high efficiency by reduc-
ing gate charge losses at light loads. In Burst Mode
operation, external control of the burst clamp level allows
the output voltage ripple to be adjusted according to the
application requirements.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
Burst Mode and OPTI-LOOP are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Protected by U.S. Patents, including 5481178, 6580258, 6304066, 6127815, 6498466,
6611131, 6724174.
APPLICATIO S
Point-of-Load Regulation
Notebook Computers
Portable Instruments
Distributed Power Systems
TYPICAL APPLICATIO
22μF
V
IN
3.3V
PV
IN
SV
IN
2.2M
294k
RT
Efficiency and Power Loss
100
95
EFFICIENCY
10000
100000
PGOOD
LTC3412A
SW
0.47μH
90
EFFICIENCY (%)
V
OUT
2.5V AT 3A
C
OUT
100μF
×2
85
80
75
70
65
60
POWER LOSS
10
100
1000
RUN/SS
1000pF
12.1k
I
TH
SYNC/MODE
820pF
PGND
SGND
V
FB
69.8k
115k
392k
3412A F01a
55
50
0.01
0.1
1
LOAD CURRENT (A)
1
10
!" ) .>
Figure 1. 2.5V/3A Step-Down Regulator
U
POWER LOSS (mW)
U
U
3412afb
1
Please help me with AutoMount/AutoPart/AutoFormat in the registry file
I wrote a RAM-based block driver in CE5. Now it can display a drive letter on the CE target board and store files, etc. The following is the registry file for the driver. [HKEY_LOCAL_MACHINE\System\St...
dlj0521 Embedded System
Essential survival skills for power engineers - 20 classic analog circuits
[align=left][color=rgb(51, 51, 51)][font=-apple-system-font, BlinkMacSystemFont, "][size=17px][b]The primary level[/b] is to memorize these 20 circuits skillfully and understand their functions. Anyon...
木犯001号 Power technology
VxWorks GPS problem, please help
Motorola's M12T GPS chip often takes 20 minutes to re-lock the satellite during cold start. I don't know why, please advise! Is there any process that is not done when initializing the GPS chip? My in...
lxg69 Real-time operating system RTOS
CC2650 SensorTag Demo
[align=center][size=16px][b]SensorTag Demonstration of CC2650[/b][/size][/align][size=16px][b]Development Environment[/b] IAR for ARM v7.4[/size] [size=16px][b]Downloader[/b] XDS100v3 TI BLE V2.1 [/si...
zzuzpb RF/Wirelessly
Error when replacing Flash file with CMD file
I downloaded the header file 2808_RAM_lnk.cmd from the TI official website and tried to replace the flash_lnk.cmd in the original project file to implement the online RAM debugging program. Because I ...
独孤求败2030 Microcontroller MCU
Write Makefile.pdf with me
What is makefile? Maybe many Windows programmers don't know this thing, because those Windows IDEs have done this work for you, but I think to be a good and professional programmer, you still have to ...
空气 Embedded System

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 570  1729  1143  2406  1390  12  35  23  49  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