Add To Favorites
Product Overview
Digi-Key Part Number LT3991IDD#PBF-ND
Quantity Available 295
Can ship immediately

Manufacturer Part Number


Description IC REG BUCK ADJ 1.2A 10DFN
Lead Free Status / RoHS Status Lead free / RoHS Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Manufacturer Standard Lead Time 6 Weeks
Detailed Description

Buck Switching Regulator IC Positive Adjustable 1.19V 1 Output 1.2A 10-WFDFN Exposed Pad

Product Attributes Select All
Manufacturer Linear Technology/Analog Devices
Series -
Packaging ? Tube ?
Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 4.3V
Voltage - Input (Max) 55V
Voltage - Output (Min/Fixed) 1.19V
Voltage - Output (Max) 30V
Current - Output 1.2A
Frequency - Switching 200kHz ~ 2MHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package / Case 10-WFDFN Exposed Pad
Supplier Device Package 10-DFN (3x3)
Base Part Number LT3991
You May Also Be Interested In
Additional Resources
Standard Package ? 121
Other Names LT3991IDDPBF

14:58:21 3/23/2018

Price & Procurement

All prices are in USD.
Price Break Unit Price Extended Price
1 7.15000 $7.15
25 4.78400 $119.60
100 4.05960 $405.96

Submit a request for quotation on quantities greater than those displayed.

Alternate Package | This part is also available in the following packaging:
  • Tape & Reel (TR) ? : LT3991IDD#TRPBF-ND
  • Minimum Quantity: 2,500  Non-Stock ?
  • Quantity Available: 0
  • Unit Price: $4.16160
Send Feedback