Buck Regulator Positive Output Step-Down DC-DC Controller IC 24-VQFN (5.5x3.5)
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LM25149RGYR

DigiKey Part Number
296-LM25149RGYRTR-ND - Tape & Reel (TR)
296-LM25149RGYRCT-ND - Cut Tape (CT)
296-LM25149RGYRDKR-ND - Digi-Reel®
Manufacturer
Manufacturer Product Number
LM25149RGYR
Description
42-V SYNCHRONOUS BUCK DC/DC CONT
Manufacturer Standard Lead Time
18 Weeks
Customer Reference
Detailed Description
Buck Regulator Positive Output Step-Down DC-DC Controller IC 24-VQFN (5.5x3.5)
Datasheet
 Datasheet
EDA/CAD Models
LM25149RGYR Models
Product Attributes
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Category
Frequency - Switching
100kHz ~ 2.2MHz
Manufacturer
Texas Instruments
Duty Cycle (Max)
100%
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, Ramp, Soft Start, Sync
Function
Step-Down
Operating Temperature
-40°C ~ 150°C (TJ)
Output Configuration
Positive
Mounting Type
Surface Mount
Topology
Buck
Package / Case
24-VFQFN Exposed Pad
Number of Outputs
1
Supplier Device Package
24-VQFN (5.5x3.5)
Output Phases
1
Base Product Number
Voltage - Supply (Vcc/Vdd)
3.5V ~ 42V
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
In-Stock: 0
3,000 estimated in stock on 27-Nov-2026
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All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$3.52000$3.52
10$2.65000$26.50
25$2.43200$60.80
100$2.19260$219.26
250$2.07844$519.61
500$2.00962$1,004.81
1,000$1.95297$1,952.97
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
3,000$1.88299$5,648.97