LM3421MHX/NOPB is out of stock and can be placed on backorder.
Available Substitutes:

Parametric Equivalent


Texas Instruments
In Stock: 0
Unit Price: $4.04000
Datasheet

Parametric Equivalent


Texas Instruments
In Stock: 0
Unit Price: $3.90993
Datasheet

Parametric Equivalent


Texas Instruments
In Stock: 0
Unit Price: $3.02214
Datasheet

Parametric Equivalent


Texas Instruments
In Stock: 0
Unit Price: $2.61174
Datasheet

Parametric Equivalent


Texas Instruments
In Stock: 0
Unit Price: $2.08689
Datasheet
LED Driver IC 1 Output DC DC Controller SEPIC, Step-Down (Buck), Step-Up (Boost) Analog, PWM Dimming 16-HTSSOP
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.

LM3421MHX/NOPB

DigiKey Part Number
296-41305-2-ND - Tape & Reel (TR)
296-41305-1-ND - Cut Tape (CT)
296-41305-6-ND - Digi-Reel®
Manufacturer
Manufacturer Product Number
LM3421MHX/NOPB
Description
IC LED DRIVER CTRLR PWM 16HTSSOP
Manufacturer Standard Lead Time
6 Weeks
Customer Reference
Detailed Description
LED Driver IC 1 Output DC DC Controller SEPIC, Step-Down (Buck), Step-Up (Boost) Analog, PWM Dimming 16-HTSSOP
Datasheet
 Datasheet
EDA/CAD Models
LM3421MHX/NOPB Models
Product Attributes
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Category
Voltage - Supply (Max)
75V
Manufacturer
Texas Instruments
Voltage - Output
3V ~ 72V
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Frequency
2MHz
Part Status
Active
Dimming
Analog, PWM
Type
DC DC Controller
Operating Temperature
-40°C ~ 125°C (TJ)
Topology
SEPIC, Step-Down (Buck), Step-Up (Boost)
Mounting Type
Surface Mount
Internal Switch(s)
No
Package / Case
16-PowerTSSOP (0.173", 4.40mm Width)
Number of Outputs
1
Supplier Device Package
16-HTSSOP
Voltage - Supply (Min)
4.5V
Base Product Number
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (5)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
LM3421MH/NOPBTexas Instruments0LM3421MH/NOPB-ND$4.04000Parametric Equivalent
LM3421Q0MH/NOPBTexas Instruments0LM3421Q0MH/NOPB-ND$3.90993Parametric Equivalent
LM3421Q0MHX/NOPBTexas Instruments0LM3421Q0MHX/NOPBTR-ND$3.02214Parametric Equivalent
LM3421Q1MH/NOPBTexas Instruments0LM3421Q1MH/NOPB-ND$2.61174Parametric Equivalent
LM3421Q1MHX/NOPBTexas Instruments0LM3421Q1MHX/NOPB-ND$2.08689Parametric Equivalent
In-Stock: 0
698 estimated in stock on 09-Nov-2026
Request Stock Notification
All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$3.43000$3.43
10$2.58100$25.81
25$2.36800$59.20
100$2.13370$213.37
250$2.02212$505.53
500$1.95484$977.42
1,000$1.89946$1,899.46
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
2,500$1.84100$4,602.50
5,000$1.80578$9,028.90