LM3671MF-3.3/NOPB - 

Buck (Step Down) Switching Regulator, Fixed, 2.7V-5.5V In, 3.3V And 0.6A Out, 2 MHz, SOT-23-5

LM3671MF-3.3/NOPB - Buck (Step Down) Switching Regulator, Fixed, 2.7V-5.5V In, 3.3V And 0.6A Out, 2 MHz, SOT-23-5

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

Manufacturer Part No:
Order Code:
Product Range
Technical Datasheet:
See all Technical Docs

Product Overview

The LM3671MF-3.3/NOPB is a fixed output step down DC to DC converter in 5 pin SOT-23 package. This DC to DC converter is optimized for powering low voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.7V to 5.5V. The LM3671 offers superior features and performance for mobile phones and similar portable systems. Automatic intelligent switching between PWM low noise and PFM low current mode offers improved system control. Hysteretic PFM mode extends battery life by reducing the quiescent current to 16µA (typical) during light load and standby operation. Internal synchronous rectification provides high efficiency during PWM mode operation. In shut down mode the device turns off and reduces battery consumption to typically 0.01µA.
  • Fixed output voltage is 3.3V
  • 600mA maximum load capability
  • 2MHz typical PWM fixed switching frequency
  • Automatic PFM/PWM mode switching
  • Internal synchronous rectification for high efficiency
  • 0.01µA typical shutdown current
  • Only three tiny surface mount external components required (one inductor, two ceramic capacitors)
  • Current overload and thermal shutdown protection
  • Operating temperature range -30°C to 85°C
  • Internal soft start


Power Management, Consumer Electronics, Portable Devices, Communications & Networking, Wireless


This device has limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to MOS gates.

Product Information

Buck (Step Down)
Cut Tape
MSL 1 - Unlimited
Find similar products Choose and modify the attributes above to find similar products.

Associated Products

Related Searches

Packaging type Cut Tape
  Additional packaging options available
Reel in 1000/reel:2436056 Check stock

Awaiting Delivery

Available for backorder to lead times shown

Check stock and lead times

934 will be available for delivery on 20-Jun-2018

3,000 will be available for delivery on 23-Jun-2018

11,000 will be available for delivery on 27-Jun-2018

More stock available week commencing 03/09/18

Contact me when back in stock

More Available From Our Partner Avnet
View pricing and availability
£1.01 £ 1.01
Price for:
Each (Supplied on Cut Tape)
Multiple: 1 Minimum: 1
Quantity Price
1 + £1.01
50 + £0.887
100 + £0.678
250 + £0.638
500 + £0.598
Also available on  Reel  in 1000/reel: 2436056

3,000  In stock

Check stock location (important)

3,000 in stock for next day delivery (UK stock)

see cut-off times
Check stock and lead times

5,000 will be available for delivery on 04-Jul-2018

2,000 will be available for delivery on 11-Jul-2018

More stock available week commencing 03/09/18
Quantity List Price
1000 + £0.539
5000 + £0.48
10000 + £0.421
No longer stocked:: No Longer Manufactured::
Back Order
Add Line Note
Total Price:
Total Price: ( )
Total Price: --
1 (Cut Tape 1685767) x 1.01 = £1.01
Total Price: £1.01
For the quantity ordered, some or all of your order will be placed on backorder. See 'Check stock and lead times' for details.
Choose your packaging preference
NOTE: Shipments for different packaging options may come from a remote warehouse. Please see delivery and lead time information for each packaging option.

Customer Reviews


Like to see information about this product from other customers?

 Read discussions, blogs, documents from our community members.


Select document type(s) you want to see and click “Apply Filters” button
Post a question to one of our experts or start a discussion and get responses from supplier experts and fellow engineers in our community.