You have entered a value in the highlighted fields below that contain invalid characters. Please revise your selection using valid characters only.


FAN5331SX - 

DC-DC Switching Boost (Step Up) Regulator, Adjustable, 2.7V-5.5Vin, 2.7V-20Vout, 1Aout, SOT-23-5

FAN5331SX - DC-DC Switching Boost (Step Up) Regulator, Adjustable, 2.7V-5.5Vin, 2.7V-20Vout, 1Aout, SOT-23-5

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

Manufacturer Part No:
Order Code:
Technical Datasheet:
FAN5331SX   Datasheet
See all Technical Docs

Product Overview

The FAN5331SX is a general purpose fixed-frequency Boost Converter designed to operate at high switching frequencies in order to minimize switching noise measured at the battery terminal of hand-held communications equipment. Quiescent current in normal mode of operation as well as in shutdown mode is designed to be minimal in order to extend battery life. Normal mode of operation or shutdown mode can be selected by a logic level shutdown circuitry. The low on-resistance of the internal N-channel switch ensures high efficiency and low power dissipation. A cycle-by-cycle current limit circuit keeps the peak current of the switch below a typical value of 1A.
  • Low noise
  • Adjustable output voltage
  • Cycle-by-cycle current limit
  • Overvoltage protection
  • Fixed-frequency PWM operation
  • Internal compensation
  • 0.5R Low RDS(ON)
  • 1W Output power capability
  • <1µA Low shutdown current


Consumer Electronics, Power Management

Product Information

Boost (Step Up)
MSL 1 - Unlimited
Find similar products Choose and modify the attributes above to find similar products.

Alternatives for FAN5331SX

Compare Selected
Manufacturer Part Number
Order Code
Manufacturer / Description
Price For
Restricted Item Add

Associated Products

Compare Selected

Related Searches

Packaging type Cut Tape
  Additional packaging options available
Re-reel (minimum 10/reel):1858084RL Check stock

Awaiting Delivery

Available for backorder to lead times shown

Check Stock & Lead Times

More stock available week commencing 18/11/19

Contact me when back in stock


Pricing is unavailable. Please contact customer services.

Price for:
Each (Supplied on Cut Tape)
Multiple: 1 Minimum: 1
Quantity Price Your Price
1+ HK$8.31
10+ HK$7.10
100+ HK$5.46
500+ HK$4.83
1000+ HK$3.81
3000+ HK$3.38

Pricing is unavailable. Please contact customer services.

No longer stocked:: No Longer Manufactured::
Add to Basket Back Order Pre-Order
Restricted Item
Add Part No. / Line Note
Total Price:
Total Price: ( )
Total Price: --
1 (Cut Tape 1858084) x 8.31 = HK$8.31
Total Price: HK$8.31
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.