Electronic Components Datasheet Search |
|
LTC3538 Datasheet(PDF) 1 Page - Linear Technology |
|
LTC3538 Datasheet(HTML) 1 Page - Linear Technology |
1 / 16 page LTC3538 1 3538fb TYPICAL APPLICATION FEATURES APPLICATIONS 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)applicationswithits800mAcurrentcapability.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. Li-Ion/Polymer to 3.3V at 800mA ■ 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 VOUT Range ■ 2.4V to 5.5V VIN 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 ■ Miniature Hard Disk Drives ■ MP3 Players ■ Digital Cameras ■ Cellular Handsets ■ PDAs, Handheld PC ■ GPS Receivers , 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. SW1 R2 200k R1 464k 15k 10k 330pF 33pF CIN 10μF VIN BURST SW2 LTC3538 VIN 2.9V TO 4.2V L1 3.3μH GND VOUT FB SD VC VOUT 3.3V 800mA COUT 22μF PWM BURST 3538 TA01 ON OFF * *μP OPEN DRAIN I/O Efficiency vs VIN VIN (V) 2.4 95 85 3.9 4.9 3538 TA01b 2.9 3.4 4.4 5.4 90 80 100 VOUT = 3.3V ILOAD = 200mA 800mA Synchronous Buck-Boost DC/DC Converter |
Similar Part No. - LTC3538 |
|
Similar Description - LTC3538 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |