EEWORLDEEWORLDEEWORLD

Part Number

Search

LTC3538EDCB-TRPBF

Description
800mA Synchronous Buck-Boost DC/DC Converter
File Size207KB,16 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Compare View All

LTC3538EDCB-TRPBF Overview

800mA Synchronous Buck-Boost DC/DC Converter

LTC3538
800mA Synchronous
Buck-Boost
DC/DC Converter
FEATURES
DESCRIPTION
The LTC
®
3538 is a highly efficient, low noise, buck-boost
DC/DC converter that operates from input voltages above,
below, and equal to the output voltage. The topology
incorporated in the IC provides a continuous transfer
function through all operating modes, making the product
ideal for single Lithium Ion or multicell Alkaline or NiMH
applications where the output voltage is within the battery
voltage range.
The LTC3538 is suited for use in Micro Hard Disk Drive
(μHDD) applications with its 800mA current capability. Burst
Mode
®
operation provides high efficiency at light loads.
The LTC3538 includes two 0.17Ω N-channel and two
0.2Ω P-channel MOSFET switches. Operating frequency
is internally set to 1MHz to minimize solution footprint
while maximizing efficiency.
Other features include <5μA shutdown current, internal
soft-start, short circuit protection and thermal shutdown.
The LTC3538 is available in a low profile (0.75mm), ther-
mally enhanced 8-lead (2mm × 3mm) DFN package.
, LT, LTC, LTM and Burst Mode are registered trademarks of Linear Technology
Corporation. All other trademarks are the property of their respective owners. Protected by
U.S. Patents including 5481178, 6304066, 6580258, 6166527, 6404251.
Regulated Output with Input Voltages Above,
Below, or Equal to the Output
800mA Continuous Output Current from a Single
Lithium-Ion/Polymer Cell
Single Inductor
1.8V to 5.25V V
OUT
Range
2.4V to 5.5V V
IN
Range
1MHz Fixed Frequency Operation
Output Disconnect in Shutdown
35μA Quiesecent Current in Burst Mode Operation
<5μA Shutdown Current
Internal Soft-Start
Small, Thermally Enhanced 8-Lead (2mm x 3mm)
DFN package
APPLICATIONS
Miniature Hard Disk Drives
MP3 Players
Digital Cameras
Cellular Handsets
PDAs, Handheld PC
GPS Receivers
TYPICAL APPLICATION
Li-Ion/Polymer to 3.3V at 800mA
L1
3.3μH
V
OUT
3.3V
800mA
Efficiency vs V
IN
100
V
OUT
= 3.3V
I
LOAD
= 200mA
LTC3538
SW1
V
IN
2.9V TO 4.2V
C
IN
10μF
PWM
BURST
BURST
GND
ON OFF
SD
V
IN
SW2
V
OUT
FB
V
C
330pF
33pF
C
OUT
22μF
15k
EFFICIENCY (%)
R1
464k
10k
95
90
85
*
R2
200k
3538 TA01
80
2.4
2.9
3.4
4.4
3.9
V
IN
(V)
4.9
5.4
3538 TA01b
*μP OPEN DRAIN I/O
3538fb
1

LTC3538EDCB-TRPBF Related Products

LTC3538EDCB-TRPBF LTC3538EDCB-TR LTC3538 LTC3538EDCB-PBF
Description 800mA Synchronous Buck-Boost DC/DC Converter 800mA Synchronous Buck-Boost DC/DC Converter 800mA Synchronous Buck-Boost DC/DC Converter 800mA Synchronous Buck-Boost DC/DC Converter
An inspiration I got from recent spam posts
[size=5][color=red]In recent days, several rogue IDs have appeared in the forum, [/color][/size] [size=5][color=red] and they actually used rogue software to post spam. After one was blocked, another ...
zqzq501311 Suggestions & Announcements
Please advise on flash storage issues
What should I pay attention to when using the 256b flash inside the 430 to store data?My current steps are1. Turn off interrupts2. Erase3.When writing flash storage, I directly write the variables use...
flyingaway Microcontroller MCU
I am learning candence signal integrity analysis and need a book
[font=微软雅黑][color=#000000][backcolor=rgb(237, 235, 235)][size=18px][b]As the title says, I would like a download link for the book. Thank you.[/b][/size][/backcolor][/color][/font]...
书的那页 PCB Design
【GD32L233C-START Review】5. IIC driving OLED
This post explains the driving of OLED.This article is just an example. It adds OLED function based on my second post in this series. Click to jump: https://bbs.eeworld.com.cn/thread-1192155-1-1.html1...
hehung GD32 MCU
Verilog HDL---Composition of complex digital systems
1. Control logic of computing components and data flow ( 1 ) Types of digital logic circuits 1 ) Combinational logic; 2 ) Sequential logic; Synchronous finite state machine is the basis of synchronous...
捍卫真理 FPGA/CPLD
PCB circuit board heat dissipation tips
The heat generated by electronic equipment during operation causes the internal temperature of the equipment to rise rapidly. If the heat is not dissipated in time, the equipment will continue to heat...
ohahaha PCB Design

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2467  1325  129  2385  2709  50  27  3  49  55 
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