Position: Home  > All Categories> Integrated Circuits (ICs) > LTC3454

LTC3454

Features: · High Effi ciency: >90% Typical in Torch Mode, >80% in Flash Mode· Wide VIN Range: 2.7V to 5.5V· Up to 1A Continuous Output Current· 3.5% LED Current Programming Accuracy· Internal Soft-Start· Open/Shorted LED Protection· Constant Frequency 1MHz Operation· Zero Shutdown Current· O...

product image

LTC3454 Picture
See larger image
SeekIC No. : 004402252 Detail

LTC3454: Features: · High Effi ciency: >90% Typical in Torch Mode, >80% in Flash Mode· Wide VIN Range: 2.7V to 5.5V· Up to 1A Continuous Output Current· 3.5% LED Current Programming Accuracy· Internal ...

LTC3454 Data Sheet

floor Price/Ceiling Price

Get Latest Price
Part Number:
LTC3454
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: 2024/12/25

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:

· High Effi ciency: >90% Typical in Torch Mode, >80% in Flash Mode
· Wide VIN Range: 2.7V to 5.5V
· Up to 1A Continuous Output Current
· 3.5% LED Current Programming Accuracy
· Internal Soft-Start
· Open/Shorted LED Protection
· Constant Frequency 1MHz Operation
· Zero Shutdown Current
· Overtemperature Protection
· Small Thermally Enhanced 10-Lead (3mm × 3mm) DFN Package


Application

· Cell Phone Camera Flash
· Cell Phone Torch Lighting
· Digital Cameras
· PDAs
· Misc Li-Ion LED Drivers


Pinout

Connection Diagram


Specifications

VIN, SW1, SW2, VOUT Voltage ..........................0.3V to 6V
V C , EN1, EN2, I SET1, I SET2
Voltage ...................................0.3V to (VIN + 0.3V) or 6V
LED Peak Current .......................................................1.25A
Storage Temperature Range ..................65°C to 125°C
Operating Temperature Range (Note 2) ...40°C to 85°C
Junction Temperature (Note 3) ............................... 125°C


Description

The LTC®3454 is a synchronous buck-boost DC/DC converter optimized for driving a single high power LED at currents up to 1A from a single cell Li-Ion battery input. The regulator operates in either synchronous buck, synchronous boost, or buck-boost mode depending on input voltage and LED forward voltage. PLED/PIN effi ciency greater than 90% can be achieved over the entire usable range of a Li-Ion battery (2.7V to 4.2V).

LED current of LTC3454 is programmable to one of four levels, including shutdown, with dual external resistors and dual enable inputs. In shutdown no supply current is drawn.

A high constant operating frequency of 1MHz allows the use of small external components. The LTC3454 is offered in a low profi le (0.75mm) thermally enhanced 10-lead (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 :
Cables, Wires
821-0814-a
415-0100-150
Batteries, Chargers, Holders
ICR18650-28A
ICR18650-26F/h
Tools
TCP202
G084SN05 V.3
Cables, Wires - Management
NM-SF50+
CCK26.5-MM-190-30
Integrated Circuits (ICs)
TA8435H
1MB12-140
Sensors, Transducers
GP2Y0D340K
PAN3509DH-TXWA
View more