Electronic Components Datasheet Search |
|
LT1612 Datasheet(PDF) 1 Page - Linear Technology |
|
LT1612 Datasheet(HTML) 1 Page - Linear Technology |
1 / 8 page 1 LT1612 s Operates from Input Voltage As Low As 2V s Internal 0.7A Synchronous Switches s Uses Ceramic Input and Output Capacitors s 620mV Reference Voltage s 800kHz Fixed Frequency Switching s Programmable Burst Mode Operation The LT ®1612 is an 800kHz, synchronous step-down DC/ DC converter that operates from an input voltage as low as 2V. Internal 0.45 Ω switches deliver output currents up to 500mA, and the 800kHz switching frequency allows the use of small, low value ceramic input and output capaci- tors. Input voltage ranges from 5.5V down to 2V and output voltage can be set as low as the 620mV reference. The device features Burst Mode TM operation, keeping efficiency high at light loads. Burst Mode operation can be defeated by pulling the MODE pin high, enabling constant switching throughout the load range for low noise. No-load quiescent current is 160 µAandshutdowncurrent is less than 1 µA. The device is available in 8-lead SO and MSOP packages. s Portable Devices s Lithium-Ion Step-Down Converters s 5V to 3.3V Conversion s 2-Cell Alkaline Step-Down Converters Figure 1. 2V to 1.2V Converter Synchronous, Step-Down 800kHz PWM DC/DC Converter April 2000 FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION Final Electrical Specifications Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. , LTC and LT are registered trademarks of Linear Technology Corporation. Burst Mode is a trademark of Linear Technology Corporation. VIN 2V 0.1 µF 33k R2 232k 1% R1 215k 1% L1 10 µH 330pF C1 10 µF C2 68 µF 3.15V C1: TAIYO-YUDEN JMK325BJ106MN C2: PANASONIC EEFCDOF680R L1: SUMIDA CD43-100 1612 F01a VOUT 1.2V 500mA 100pF VIN SW FB BOOST MODE SHDN VC GND LT1612 LOAD CURRENT (mA) 90 80 70 60 50 40 30 100 10 500 1612 • F01b VIN = 2V (LINEAR) VIN = 3V (LINEAR) VIN = 2V VIN = 3V Efficiency for LT1612 vs Linear Regulator VOUT = 1.2V |
Similar Part No. - LT1612 |
|
Similar Description - LT1612 |
|
|
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 |