Position: Home  > All Categories> Integrated Circuits (ICs) > LTC3805

LTC3805

Features: VIN and VOUT Limited Only by External Components 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 Current Mode O...

product image

LTC3805 Picture
See larger image
SeekIC No. : 004402356 Detail

LTC3805: Features: VIN and VOUT Limited Only by External Components Adjustable Slope Compensation Adjustable Overcurrent Protection with Automatic Restart Adjustable Operating Frequency (70kHz to 700kHz) wi...

LTC3805 Data Sheet

floor Price/Ceiling Price

Get Latest Price
Part Number:
LTC3805
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

SeekIC Buyer Protection PLUS - newly updated for 2013!

  • Escrow Protection.
  • Guaranteed refunds.
  • Secure payments.
  • Learn more >>

Month Sales

268 Transactions

Rating

evaluate  (4.8 stars)

Upload time: 2025/1/10

add to my favourite

Payment Methods

All payment methods are secure and covered by SeekIC Buyer Protection PLUS.

Notice: When you place an order, your payment is made to SeekIC and not to your seller. SeekIC only pays the seller after confirming you have received your order. We will also never share your payment details with your seller.
Product Details

Description



Features:

VIN and VOUT Limited Only by External Components
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
Current Mode Operation for Excellent Line and Load Transient Response
RUN Pin with Precision Threshold and Adjustable Hysteresis
Programmable Soft-Start with One External Capacitor
Low Quiescent Current: 360A
Small 10-Lead MSOP and 3mm * 3mm DFN


Application

Telecom Power Supplies
42V and 12V Automotive Power Supplies
Isolated Electronic Equipment


Pinout

Connection Diagram


Specifications

VCC to GND
       Low Impedance Source ........................ 0.3V to 8.8V
       Current Fed ........................................25mA into VCC*
SYNC ........................................................... 0.3V to 6V
SSFLT ........................................................... 0.3V to 5V
FB, ITH, FS ................................................. 0.3V to 3.5V
RUN ........................................................... 0.3V to 18V
OC, ISENSE .................................................... 0.3V to 1V
Operating Ambient Temperature Range ...40 to 85
Operating Junction Temperature ........................... 125
Storage Temperature Range ...................65 to 125
Lead Temperature (Soldering, 10 sec)
        LTC3805EMSE Only .......................................... 300
*LTC3805 internal clamp circuit regulates VCC voltage to 9.5V


Description

The LTC®3805 is a current mode controller for fl yback DC/DC converters designed to drive an N-channel MOSFET in high input and output voltage converter applications. Operating frequency and slope compensation can be programmed by external resistors. Programmable overcurrent sensing protects the converter from short-circuits. Softstart can be programmed using an external capacitor and the soft-start capacitor also programs an automatic restart feature.

The LTC3805 provides ±1.5% output voltage accuracy and consumes only 360A of quiescent current during normal operation and only 40A during micropower startup. Using a 9.5V internal shunt regulator, the LTC3805 can be powered from a high VIN through a resistor or it can be powered directly from a low impedance DC voltage of 9V or less.

The LTC3805 is available in the 10-lead MSOP package and the 3mm * 3mm DFN package.




Customers Who Bought This Item Also Bought

Margin,quality,low-cost products with low minimum orders. Secure your online payments with SeekIC Buyer Protection.
You may also be interested in :
Relays
WIMA MKP4 0.22UF 630V
WIMA MKP4 4.7UF 630VDC
Tools
TCP202
G084SN05 V.3
Tapes, Adhesives
803
AC452-2
Batteries, Chargers, Holders
ICR18650-28A
ICR18650-26F/h
Crystals and Oscillators
WT325BI0030.000000
2SB49
Filters
PICO2205A
PICO2204A
View more