LM21305SQE/NOPB is out of stock and can be placed on backorder.
Available Substitutes:

Parametric Equivalent


Texas Instruments
In Stock: 0
Unit Price: $8.47000
Datasheet

Parametric Equivalent


Texas Instruments
In Stock: 0
Unit Price: $4.05916
Datasheet
Buck Switching Regulator IC Positive Adjustable 0.598V 1 Output 5A 28-WFQFN Exposed Pad
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.

LM21305SQE/NOPB

DigiKey Part Number
LM21305SQE/NOPBTR-ND - Tape & Reel (TR)
LM21305SQE/NOPBCT-ND - Cut Tape (CT)
LM21305SQE/NOPBDKR-ND - Digi-Reel®
Manufacturer
Manufacturer Product Number
LM21305SQE/NOPB
Description
IC REG BUCK ADJ 5A 28WQFN
Manufacturer Standard Lead Time
18 Weeks
Customer Reference
Detailed Description
Buck Switching Regulator IC Positive Adjustable 0.598V 1 Output 5A 28-WFQFN Exposed Pad
Datasheet
 Datasheet
EDA/CAD Models
LM21305SQE/NOPB Models
Product Attributes
Filter Similar Products
Show Empty Attributes
Category
Voltage - Output (Min/Fixed)
Mfr
Voltage - Output (Max)
18V
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Current - Output
Part Status
Active
Frequency - Switching
300kHz ~ 1.5MHz
Function
Step-Down
Synchronous Rectifier
Yes
Output Configuration
Positive
Operating Temperature
-40°C ~ 85°C (TA)
Topology
Mounting Type
Surface Mount
Output Type
Package / Case
Number of Outputs
1
Supplier Device Package
28-WQFN (5x5)
Voltage - Input (Min)
3V
Base Product Number
Voltage - Input (Max)
18V
Associated Products
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (2)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
LM21305SQ/NOPBTexas Instruments0LM21305SQ/NOPBTR-ND$8.47000Parametric Equivalent
LM21305SQX/NOPBTexas Instruments0LM21305SQX/NOPB-ND$4.05916Parametric Equivalent
In-Stock: 0
250 estimated in stock on 23-Oct-2026
Request Stock Notification
All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$8.47000$8.47
10$6.57300$65.73
25$6.09840$152.46
100$5.57650$557.65
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
250$5.32780$1,331.95
500$5.17782$2,588.91
750$5.10275$3,827.06
1,250$5.01956$6,274.45
1,750$4.97093$8,699.13
Tariff Status: Tariff may apply if shipping to the United States. Estimated tariff costs will be calculated and displayed in the shopping cart to help you assess potential expenses.