Buck Regulator Positive Output Step-Down DC-DC Controller IC 16-WQFN (4x4)
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LM27402SQ/NOPB

DigiKey Part Number
LM27402SQ/NOPBTR-ND - Tape & Reel (TR)
LM27402SQ/NOPBCT-ND - Cut Tape (CT)
LM27402SQ/NOPBDKR-ND - Digi-Reel®
Manufacturer
Manufacturer Product Number
LM27402SQ/NOPB
Description
IC REG CTRLR BUCK 16WQFN
Manufacturer Standard Lead Time
6 Weeks
Customer Reference
Detailed Description
Buck Regulator Positive Output Step-Down DC-DC Controller IC 16-WQFN (4x4)
Datasheet
 Datasheet
EDA/CAD Models
LM27402SQ/NOPB Models
Product Attributes
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Category
Frequency - Switching
200kHz ~ 1.2MHz
Manufacturer
Texas Instruments
Duty Cycle (Max)
95%
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Synchronous Rectifier
Yes
Part Status
Active
Clock Sync
Yes
Output Type
Transistor Driver
Control Features
Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking
Function
Step-Down
Operating Temperature
-40°C ~ 125°C (TJ)
Output Configuration
Positive
Mounting Type
Surface Mount
Topology
Buck
Package / Case
16-WQFN Exposed Pad
Number of Outputs
1
Supplier Device Package
16-WQFN (4x4)
Output Phases
1
Base Product Number
Voltage - Supply (Vcc/Vdd)
3V ~ 20V
Associated Products
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
In-Stock: 0
1,000 estimated in stock on 06-Nov-2026
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All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$3.88000$3.88
10$2.92900$29.29
25$2.69160$67.29
100$2.43070$243.07
250$2.30620$576.55
500$2.23120$1,115.60
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
1,000$1.92875$1,928.75
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.