LTC3805IMSE-5 Integrated Circuit Chip Adjustable Frequency Current Mode Flyback/Boost/SEPIC DC/DC Controller
Product Description
LTC3805IMSE-5 is a current mode DC/DC controller designed to drive an N-channel MOSFET in flyback, boost and SEPIC converter applications. Operating frequency and slope compensation can be programmed by external resistors. Programmable overcurrent sensing protects the converter from overload and short-circuit conditions. Soft-start can be programmed using an external capacitor and the soft-start capacitor also programs an automatic restart feature.
Specifications
|
Output Type
|
|
|
Function
|
Step-Up, Step-Up/Step-Down
|
|
Output Configuration
|
Positive, Isolation Capable
|
|
Topology
|
|
|
Number of Outputs
|
|
|
Output Phases
|
|
|
Voltage - Supply (Vcc/Vdd)
|
|
|
Frequency - Switching
|
|
|
Duty Cycle (Max)
|
|
|
Synchronous Rectifier
|
|
|
Clock Sync
|
|
|
Control Features
|
|
|
Operating Temperature
|
|
Features
VIN and VOUT Limited Only by External Components
4.5V Undervoltage Lockout Threshold
Adjustable Slope Compensation
Adjustable Overcurrent Protection with Automatic Restart
Adjustable Operating Frequency (70kHz to 700kHz) With One External Resistor
Synchronizable to an External Clock
±1.5% Reference Accuracy
Only 100mV Current Sense Voltage Drop
RUN Pin with Precision Threshold and Adjustable Hysteresis
Programmable Soft-Start with One External Capacitor
Low Quiescent Current: 360μA
Small 10-Lead MSOP and 3mm × 3mm DFN
Applications
Automotive Power Supplies
Telecom Power Supplies
Isolated Electronic Equipment
Auxiliary/Housekeeping Power Supplies
Power over Ethernet
Other Supply Product Types
|
Part Number
|
Package
|
|
STL125N8F7AG
|
8-PowerVDFN
|
|
STB36N60M6
|
D2PAK
|
|
STHU47N60DM6AG
|
HU3PAK
|
|
STHU36N60DM6AG
|
HU3PAK
|
|
STB33N60DM2
|
D2PAK
|
|
STD80N450K6
|
TO-252
|
|
STO33N60M6
|
8-PowerSFN
|
|
STB45N60DM2AG
|
D2PAK
|
|
STB33N60DM6
|
D2PAK
|
|
STO67N60M6
|
8-PowerSFN
|
|
STL33N60DM6
|
8-PowerVDFN
|
|
STO47N60M6
|
8-PowerSFN
|
|
SCT060HU75G3AG
|
HU3PAK
|
|
STH60N099DM9-2AG
|
H2PAK-2
|
|
TSB182IYST
|
8-MiniSO
|
|
TSZ151ICT
|
SOT-323-5
|
|
TSB624IYPT
|
14-TSSOP
|
|
TSZ151IYCT
|
SOT-323-5
|
|
TSB514IYPT
|
14-TSSOP
|
|
LM2902BYPT
|
14-TSSOP
|
|
TSL6002IST
|
8-MiniSO
|
|
TSB512IDT
|
8-SOIC
|
|
TSB622IDT
|
8-SOIC
|
|
TSL6202IST
|
8-MiniSO
|
|
LM2902YQ5T
|
16-QFN
|
|
LM2904BYDT
|
8-SOIC
|
|
LM2903BYPT
|
8-TSSOP
|
|
LM2904YQ6T
|
8-DFN
|
|
LM2903WST
|
8-MiniSO
|
|
TSB182IDT
|
8-SOIC
|
FAQ
Q: Are your products original?
A: Yes, all products are original, new original import is our purpose.
Q:Which Certificates do you have?
A:We are ISO 9001:2015 Certified Company and member of ERAI.
Q:Can you support small quantity order or sample?Is the sample free?
A:Yes,we support sample order and small order.Sample cost is different according to your order or project.
Q:How to ship my order? Is it safe?
A:We use express to ship,such as DHL,Fedex,UPS,TNT,EMS.We can also use your suggested forwarder.Products will be in good packing and ensure the safety and we are responsible to product damage to your order.
Q:What about the lead time?
A:We can ship stock parts within 5 working days.If without stock,we will confirm lead time for you based on your order quantity.
Your message must be between 20-3,000 characters!
