 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
LTC3803-3 Datasheet(PDF) 1 Page - Linear Technology |
|
||||||||||||||||||||||||||||||
LTC3803-3 Datasheet(HTML) 1 Page - Linear Technology |
|
|
1 / 16 page  LTC3803-3 1 38033fd L, LT, LTC, LTM, Burst Mode, 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. TYPICAL APPLICATION FEATURES APPLICATIONS DESCRIPTION Constant Frequency Current Mode Flyback DC/DC Controller in ThinSOT The LTC ®3803-3 is a constant frequency current mode flyback controller optimized for driving N-channel MOSFETs in high input voltage applications. Constant frequency operation is maintained down to very light loads, resulting in less low frequency noise generation over a wide range of load currents. Slope compensation can be programmed with an external resistor. The LTC3803-3 provides ±1.5% output voltage accuracy and consumes only 240μA of quiescent current. Ground- referenced current sensing allows LTC3803-3-based con- verters to accept input supplies beyond the LTC3803-3’s absolute maximum VCC. A micropower hysteretic start-up feature allows efficient operation at high input voltages. For simplicity, the LTC3803-3 can also be powered from a high VIN through a resistor, due to its internal shunt regulator. An internal undervoltage lockout shuts down the LTC3803-3 when the input voltage is too low to provide sufficient gate drive to the external MOSFET. The LTC3803-3 is available in a low profile (1mm) 6-lead SOT-23 (ThinSOT™) package. 5V Output Nonisolated Telecom Housekeeping Power Supply n VIN and VOUT Limited Only by External Components n Adjustable Slope Compensation n Internal Soft-Start n –55°C to 150°C Operating Temperature Range n Constant Frequency 300kHz Operation n ±1.5% Reference Accuracy n Current Mode Operation for Excellent Line and Load Transient Response n No Minimum Load Requirement n Low Quiescent Current: 240μA n Low Profile (1mm) SOT-23 Package n Telecom Power Supplies n 42V and 12V Automotive Power Supplies n Auxiliary/Housekeeping Power Supplies n Power over Ethernet Powered Devices VCC ITH/RUN LTC3803-3 GND NGATE SENSE VFB UPS840 300μF* 6.3V X5R 1μF 100V X5R 150pF 200V 1μF 10V X5R VOUT 5V 2A MAX 38033 TA01 68mΩ 220Ω 20k 10k 82k 470pF 105k 4.7k FDC2512 T1: COOPER CTX02-15242 *THREE 100μF UNITS IN PARALLEL T1 • • VIN 36V TO 72V LOAD CURRENT (mA) 250 50 55 65 70 75 100 85 750 1250 1500 38033 TA02 60 90 95 80 500 1000 1750 2000 VIN = 36V VIN = 48V VIN = 60V VIN = 72V VOUT = 5V Efficiency vs Load Current |
Similar Part No. - LTC3803-3 |
|
Similar Description - LTC3803-3 |
|
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | 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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
