EEWORLDEEWORLDEEWORLD

Part Number

Search

LT1767EMS8E#TR

Description
IC reg buck adj 1.5A 8msop
CategoryPower/power management    The power supply circuit   
File Size205KB,7 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Parametric View All

LT1767EMS8E#TR Overview

IC reg buck adj 1.5A 8msop

LT1767EMS8E#TR Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?incompatible
MakerLinear ( ADI )
Parts packaging codeMSOP
package instructionHTSSOP, TSSOP8,.19
Contacts8
Manufacturer packaging codeMS8E
Reach Compliance Code_compli
ECCN codeEAR99
Other featuresOUTPUT VOLTAGE IS ADJUSTABLE FROM 1.176 TO 1.224V
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
control modeCURRENT-MODE
Maximum input voltage25 V
Minimum input voltage3 V
Nominal input voltage15 V
JESD-30 codeS-PDSO-G8
JESD-609 codee0
length3 mm
Humidity sensitivity level1
Number of functions1
Number of terminals8
Maximum operating temperature125 °C
Minimum operating temperature
Maximum output current3 A
Nominal output voltage1.2 V
Package body materialPLASTIC/EPOXY
encapsulated codeHTSSOP
Encapsulate equivalent codeTSSOP8,.19
Package shapeSQUARE
Package formSMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)235
Certification statusNot Qualified
Maximum seat height1.1 mm
surface mountYES
Switch configurationBUCK
Maximum switching frequency1500 kHz
technologyBIPOLAR
Temperature levelOTHER
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
width3 mm
QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 502
LT1767
DESCRIPTION
Demonstration
circuit
502
is
a
1.25MHz 1.5A monolithic step-down
DC/DC switching converter using the
LT1767 buck regulator. With its fast
switching speed, 1.5A internal power
switch, and wide input voltage range,
the LT1767 is a very versatile and
powerful IC for DC/DC converters that
require compact space and a wide va-
riety of input voltage ranges. The
constant 1.25MHz switching frequency
allows all of the components to be
very small, surface mount devices.
The current-mode control topology
creates fast transient response and
good loop stability with a minimum
number of external compensation com-
ponents and ceramic input and output
capacitors. The low resistance inter-
nal power switch (0.22Ω) maintains
high efficiencies >80% and up to 90%.
The SHDN pin and 6uA shutdown current
extends battery life. The wide V
IN
range of the LT1767 allows step-down
configurations from 3Vin up to 25Vin.
Synchronization of switching frequen-
cies up to 2MHz is possible.
Demonstration Circuit 502 is a step-
down converter using the LT1767EMS8E.
The circuit is designed for 6.6-25V
Table 1. Typical Performance Summary
PARAMETER
Input Voltage Range
Input Voltage Range
V
out
V
out
Maximum Output Current
Typical Switching Frequency
Typical Efficiency
CONDITION
V
out
= 5V (Jumper Selection)
V
out
= 3.3V (Jumper Selection)
V
out
= 5V (Jumper Selection)
V
out
= 3.3V (Jumper Selection)
VALUE
6.6V–25V
4.5V–18V
5V ±3%
3.3V ±3%
1A
1.25MHz
V
in
= 12V, V
out
= 5V, I
out
= 1A 84%
1.25MHZ WIDE INPUT RANGE STEP DOWN DC/DC CONVERTER
input to 5.0V output @1A or for 4.5-
25V
input to 3.3V output @1A for ca-
ble modem, handheld, automotive, and
desktop computer applications. The
output voltage is jumper selectable
(5V or 3.3V). This board was designed
for wide input voltage range applica-
tions where simplicity, small circuit
size, and low component count are im-
portant as well as up to 1A of load
current. The use of ceramic capaci-
tors not only demonstrates small size
and low cost, but the advantage of
current-mode control in step-down ap-
plications with a simple compensation
network and a place-holder for a
feedforward capacitor for more rugged
stability and optimal transient re-
sponse if required.
Design files for this circuit board
are available. Call the LTC factory.
Higher input voltages may pulse-skip due to
minimum on-time restrictions. Compensation
component changes may be necessary to opti-
mize pulse-skipping during high-temperature,
high-voltage conditions and maintain control
of switch current.
1
1
2013 Android Worldwide Developers Conference
[font=Arial, Helvetica, sans-serif][color=#ff0000][b]2013 Android World Global Developers Conference (2013 Android Global Developers Conference) This must be studied. [/b][/color][/font]:titter::titte...
在路上的旁观者 Embedded System
Instrumentation Amplifier Design Guide
[i=s]This post was last edited by paulhyde on 2014-9-15 09:34[/i] Shared with you...
aiqinghuakai Electronics Design Contest
TI USB Type-C TPS65987D dual battery fast charging
[i=s]This post was last edited by qwqwqw2088 on 2020-11-10 08:49[/i]With the widespread use of Type-C, the previous USB charging solutions gradually need Type-C Power Delivery (PD) to achieve more eff...
qwqwqw2088 Analogue and Mixed Signal
Will the level of the national electronic design competition be lowered?
[i=s]This post was last edited by paulhyde on 2014-9-15 03:42[/i] [size=4][b]After receiving the first prize certificate, I found that there was no seal from the Ministry of Education or the Ministry ...
ckx提问 Electronics Design Contest
[Video] Accelerate design development time using hard-core floating-point DSP blocks in FPGA
[media=swf,500,375]http://player.youku.com/player.php/sid/XNzI4NTI3MzMy/v.swf[/media]...
chenzhufly FPGA/CPLD
There is a problem with the following ucos task, please help me take a look!
#include includes.h #if 1 unsigned int time_temp1; unsigned int time_temp2;#endif#if 1 int flag_temp_past[CAN_FIFO_SIZE]={0}; int temp_high[CAN_FIFO_SIZE]={0}; int past_high[CAN_FIFO_SIZE]={0};#endife...
danner Real-time operating system RTOS

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1659  1250  22  604  743  34  26  1  13  15 
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