 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
LT3757 Datasheet(PDF) 1 Page - Linear Technology |
|
|
|||||||||||||||||||||||||||||
LT3757 Datasheet(HTML) 1 Page - Linear Technology |
|
|
1 / 32 page  LT3759 1 3759fb TYPICAL APPLICATION FEATURES DESCRIPTION Wide Input Voltage Range Boost/SEPIC/Inverting Controller 2.5V to 36V Input, 12V Output SEPIC Converter Excellent for Automotive 12V Post Regulator APPLICATIONS n Wide VIN Range: 1.6V to 42V n Positive or Negative Output Voltage Programming with a Single Feedback Pin n PGOOD Output Voltage Status Report n Accurate 50mV SENSE Threshold Voltage n Programmable Soft-Start n Programmable Operating Frequency (100kHz to 1MHz) with One External Resistor n Synchronizable to an External Clock n Low Shutdown Current < 1μA n INTVCC Regulator Supplied from VIN or DRIVE n Programmable Input Undervoltage Lockout with Hysteresis n Datacom and Industrial Boost, SEPIC and Inverting Converters n Distributed Power Supplies n Portable Electronic Equipment n Automotive L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and ThinSOT and No RSENSE are trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 7825665. The LT®3759 is a wide input range, current mode, DC/DC controller which is capable of regulating either positive or negative output voltages from a single feedback pin. It can be configured as a boost, SEPIC or inverting converter. The LT3759 drives a low side external N-channel power MOSFET. An internal LDO regulator draws power from VIN or DRIVE to provide up to a 4.75V supply for the gate driver. The fixed frequency, current-mode architecture results in stable operation over a wide range of supply and output voltages. The operating frequency of LT3759 can be set over a 100kHz to 1MHz range with an external resistor, or can be synchronized to an external clock using the SYNC pin. The LT3759 features soft-start and frequency foldback functions to limit inductor current during start-up and output short-circuit. A window comparator on the FBX pin reports via the PGOOD pin, providing output voltage status indication. The device is available in a 12-Lead exposed pad MSOP package. Efficiency vs Output Current OUTPUT CURRENT (A) 0 90 95 100 1.5 2.5 3759 TA01b 85 0.5 1 2 80 75 VIN = 12V LT3759 VIN VIN 2.5V TO 36V CIN 4.7μF ×4 41.2k 200kHz 4.7μF ×2 GATE SENSE DRIVE FBX GND INTVCC EN/UVLO PGOOD SYNC TIE TO GND IF NOT USED RT SS VC L1A L1B 105k 118k 0.1μF 7.5k 22nF 105K 5mΩ 100k 4.7μF VOUT 12V 0.5A, 2.5V ≤ VIN ≤ 8V 2A, 8V < VIN ≤ 36V 3759 TA01a COUT2 47μF ×4 M1 15.8K + COUT1 10μF |
Similar Part No. - LT3757 |
|
Similar Description - LT3757 |
|
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | 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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
