MP3304ADD-LF-Z LED Driver IC Equivalent & Substitute Parts

Part Overview

The MP3304ADD-LF-Z is a LED Driver IC manufactured by Monolithic Power Systems Inc., classified as a Power Management PMIC. This device functions as a 1-output DC-DC regulator with Step-Up (Boost) topology, delivering 1.33A switch current at 36V output with PWM dimming capability for backlight applications. The part operates across a 3V to 6V supply range at 2.2MHz switching frequency in an 8-QFN (2x3) surface mount package.

The MP3304ADD-LF-Z carries a "Not For New Designs" product status, making identification of equivalent and substitute parts essential for ongoing production support, design updates, and component sourcing flexibility. Equivalent parts within the MP3304 and MP3305 series, as well as cross-manufacturer alternatives, provide viable options for applications requiring identical or compatible electrical and mechanical specifications.

Key Parameters

Parameter	Value
Manufacturer	Monolithic Power Systems Inc.
Part Number	MP3304ADD-LF-Z
Category	Power Management (PMIC)
Type	DC DC Regulator
Topology	Step-Up (Boost)
Package / Case	8-TFDFN Exposed Pad
Supplier Device Package	8-QFN (2x3)
Voltage - Supply (Min)	3V
Voltage - Supply (Max)	6V
Voltage - Output	36V
Current - Output / Channel	1.33A (Switch)
Frequency	2.2MHz
Dimming	PWM
Applications	Backlight
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Not For New Designs

Substitute Part Grouping Explanation

Substitution of the MP3304ADD-LF-Z is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

DC-DC Regulator topology (Step-Up/Boost)
Internal switch configuration (Yes)
Single output channel
Supply voltage range: 3V to 6V minimum/maximum
Output voltage: 36V
Switch current capacity: 1.33A
Switching frequency: 2.2MHz
PWM dimming capability
Backlight application suitability
8-QFN (2x3) package compatibility
Operating temperature range: -40°C to 85°C
RoHS3 compliance
MSL Level 1

Parametric Equivalent Parts (Identical Electrical & Mechanical Specifications):

MP3304ADD-LF-P: Identical specifications, Tape & Reel packaging variant
MP3304BDD-LF-P / MP3304BDD-LF-Z: 24V output variant (different output voltage)
MP3304CDD-LF-P / MP3304CDD-LF-Z: 18V output variant (different output voltage)
MP3305DD-LF-P / MP3305DD-LF-Z: Extended supply range (2.5V minimum), 36V output, Active product status

Cross-Manufacturer Alternatives:

AP5725FDCG-7 (Diodes Incorporated): 750mA output, 26V output, 6-UDFN package, different frequency
AP5726FDCG-7 (Diodes Incorporated): 750mA output, 6-UDFN package, different frequency
AP8803WTG-7 (Diodes Incorporated): Step-Down topology, different supply range, TSOT-23-5 package

Substitution validity depends on exact matching of output voltage, supply voltage range, current rating, package type, and application requirements. Parts with differing output voltages or current ratings require circuit redesign validation.

Parameter Comparison

Part Number	Manufacturer	Supply Min (V)	Supply Max (V)	Output (V)	Current (A)	Frequency (MHz)	Package	Product Status	Inventory (Pcs)
MP3304ADD-LF-Z	MPS	3	6	36	1.33	2.2	8-QFN (2x3)	Not For New Designs	1923
MP3304ADD-LF-P	MPS	3	6	36	1.33	2.2	8-QFN (2x3)	Not For New Designs	1800
MP3304BDD-LF-P	MPS	3	6	24	1.33	2.2	8-QFN (2x3)	Active	3249
MP3304BDD-LF-Z	MPS	3	6	24	1.33	2.2	8-QFN (2x3)	Active	4777
MP3304CDD-LF-P	MPS	3	6	18	1.33	2.2	8-QFN (2x3)	Not For New Designs	889
MP3304CDD-LF-Z	MPS	3	6	18	1.33	2.2	8-QFN (2x3)	Not For New Designs	18013
MP3305DD-LF-P	MPS	2.5	6	36	1.33	2.2	8-QFN (2x3)	Active	738
MP3305DD-LF-Z	MPS	2.5	6	36	1.33	2.2	8-QFN (2x3)	Active	18461
AP5725FDCG-7	Diodes Inc.	2.7	5.5	26	0.75	1.2	6-UDFN	Active	6861
AP5726FDCG-7	Diodes Inc.	2.7	5.5	—	0.75	1.2	6-UDFN	Active	19670
AP8803WTG-7	Diodes Inc.	8	30	—	1	0.7	TSOT-23-5	Active	12200

Engineering Selection Recommendations

Direct Parametric Equivalents (36V Output, 1.33A, 3V-6V Supply):

MP3304ADD-LF-P and MP3305DD-LF-Z represent the most direct substitutes for the MP3304ADD-LF-Z. Both maintain identical electrical specifications (36V output, 1.33A switch current, 2.2MHz frequency, 8-QFN package). MP3305DD-LF-Z offers superior product status (Active) and extended minimum supply voltage (2.5V), providing design flexibility for lower-voltage applications. MP3304ADD-LF-P maintains identical specifications but carries "Not For New Designs" status.

Output Voltage Variants (Same Package, Current, Frequency):

MP3304BDD-LF-Z (24V output, Active status) and MP3304CDD-LF-Z (18V output) provide alternative output voltages within the same 8-QFN package and 1.33A current rating. These require circuit redesign to accommodate different output voltage levels and are suitable only when application requirements permit lower output voltages.

Cross-Manufacturer Alternatives:

AP5725FDCG-7 and AP5726FDCG-7 (Diodes Incorporated) operate at reduced current capacity (750mA vs. 1.33A), lower output voltage (26V vs. 36V), and different package format (6-UDFN vs. 8-QFN). These alternatives are not direct substitutes and require full circuit redesign. AP8803WTG-7 employs Step-Down topology with incompatible supply voltage range (8V-30V) and package type, making it unsuitable for direct substitution.

Compliance & Availability:

All listed parts maintain RoHS3 compliance and MSL Level 1 rating. MP3305DD-LF-Z offers the highest inventory availability (18,461 pcs) with Active product status, supporting long-term production continuity. MP3304CDD-LF-Z provides substantial inventory (18,013 pcs) despite "Not For New Designs" status.

Frequently Asked Questions (FAQ)

Q: Can MP3305DD-LF-Z directly replace MP3304ADD-LF-Z without circuit modification?

A: Yes, for applications requiring 36V output at 1.33A with 3V-6V supply. MP3305DD-LF-Z maintains identical electrical specifications and 8-QFN package compatibility. The extended minimum supply voltage (2.5V vs. 3V) provides additional design margin without requiring circuit changes.

Q: What is the difference between MP3304ADD-LF-Z and MP3304ADD-LF-P?

A: Both parts are electrically and mechanically identical. The suffix designates packaging format: "-Z" indicates Tape & Reel (TR) packaging, while "-P" also indicates Tape & Reel. Selection depends on procurement and assembly requirements.

Q: Why are MP3304BDD and MP3304CDD variants listed as substitutes?

A: These variants share identical package, current rating, frequency, and topology but deliver different output voltages (24V and 18V respectively). They are substitutes only when application requirements permit lower output voltage operation and circuit redesign is performed.

Q: Can AP5725FDCG-7 or AP5726FDCG-7 replace the MP3304ADD-LF-Z?

A: No. These Diodes Incorporated parts operate at 750mA (vs. 1.33A), 26V output (vs. 36V), 1.2MHz frequency (vs. 2.2MHz), and use 6-UDFN package (vs. 8-QFN). Full circuit redesign is required, and they are not direct substitutes.

Q: What does "Not For New Designs" product status mean?

A: This designation indicates the part is in mature/legacy phase and not recommended for new product development. Existing production support remains available. MP3305DD-LF-Z (Active status) is preferred for new designs requiring 36V output at 1.33A.

Q: Are all listed parts RoHS3 compliant?

A: Yes. All parts listed maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, meeting standard environmental and reliability requirements.

Q: Which substitute offers the best long-term availability?

A: MP3305DD-LF-Z provides the highest inventory (18,461 pcs) combined with Active product status, supporting sustained production requirements and design continuity.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message