Low

LT3474IFE#PBF - 

Led Driver, Buck (Step Down), PWM Dimming, 4V-36V in, 500kHz switch, 1A out, TSSOP-16

LINEAR TECHNOLOGY LT3474IFE#PBF

Image is for illustrative purposes only. Please refer to product description.

Manufacturer Part No:
LT3474IFE#PBF
Order Code:
2115863
Technical Datasheet:
(EN)
See all Technical Docs

Product Overview

The LT3474IFE#PBF is a fixed frequency step-down DC/DC Converter designed to operate as constant-current sources. An internal sense resistor monitors the output current allowing accurate current regulation, ideal for driving high current LEDs. High output current accuracy is maintained over a wide current range, from 35mA to 1A, allowing a wide dimming range. Unique PWM circuitry allows a dimming range of 400:1, avoiding the colour shift normally associated with LED current dimming. The high switching frequency offers several advantages, permitting the use of small inductors and ceramic capacitors. The constant switching frequency combined with low-impedance ceramic capacitors result in low, predictable output ripple. With its wide input range of 4 to 36V, the LT3474 regulate a broad array of power sources, from 5V logic rails to unregulated wall transformers, lead acid batteries and distributed power supplies. Frequency fold-back and thermal shutdown provide additional protection.
  • Adjustable control of LED current
  • Integrated boost diode
  • Open LED and short-circuit protection
  • High-side sense allows grounded cathode connection
  • Uses small inductors and ceramic capacitors

Applications

Automotive, Avionics, LED Lighting

Product Information

:
Buck (Step Down)
:
1Outputs
:
1A
:
-
:
TSSOP
:
16Pins
:
4V
:
36V
:
2MHz
:
-40°C
:
125°C
:
Each
:
-
:
-
:
MSL 1 - Unlimited
Find similar products Choose and modify the attributes above to find similar products.

Alternatives

Associated Products

Compare Selected

Related Searches

 

495 In stock

137 in stock for next day delivery (Liege stock)

358 in stock for next day delivery (UK stock)

see cut-off times
 
Check stock and lead times
More stock available week commencing 06/08/18
£6.08 £ 6.08
Price for:
Each
Multiple: 1 Minimum: 1
Quantity Price
1 + £6.08
25 + £3.95
100 + £3.40
No longer stocked:: No Longer Manufactured::
Add to Basket
Total Price:
Total Price: ( )
Total Price: --

Customer Reviews

Community

Like to see information about this product from other customers?

 Read discussions, blogs, documents from our community members.

Filters:

Post a question to one of our experts or start a discussion and get responses from supplier experts and fellow engineers in our community.