MIC2292-15YML-TR LED Driver IC Equivalent & Substitute Parts

Part Overview

The MIC2292-15YML-TR is an active LED Driver IC manufactured by Microchip Technology, designed for step-up (boost) DC-DC regulation with PWM dimming capability. This single-output regulator operates from 2.5V to 10V input and delivers 750mA switch current, making it suitable for backlight applications. The device is housed in an 8-MLF® (2x2) surface mount package and is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1). Substitute parts are necessary when addressing supply chain constraints, package compatibility requirements, or application-specific performance needs while maintaining functional equivalence.

Key Parameters

Parameter	Value
Manufacturer Part Number	MIC2292-15YML-TR
Manufacturer	Microchip Technology
Category	Power Management (PMIC)
Type	DC DC Regulator
Topology	Step-Up (Boost)
Number of Outputs	1
Voltage - Supply (Min)	2.5V
Voltage - Supply (Max)	10V
Current - Output / Channel	750mA (Switch)
Frequency	1.6MHz
Dimming	Analog, PWM
Applications	Backlight
Operating Temperature	-40°C ~ 125°C (TJ)
Package / Case	8-VFDFN Exposed Pad, 8-MLF®
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution logic for the MIC2292-15YML-TR is based on the following critical parameters:

Primary Substitution Criteria:

Topology: Step-Up (Boost) DC-DC regulation
Number of Outputs: Single output
Dimming Capability: PWM or Analog/PWM support
Current Rating: 750mA or higher switch current
Input Voltage Range: Overlap with 2.5V–10V supply window
Operating Temperature: Minimum -40°C to 125°C junction temperature
Package Type: Surface mount with exposed pad preferred
Compliance: ROHS3 and MSL 1 rating

Substitute Categories:

Category A – Direct Functional Equivalents (Step-Up Boost, PWM Dimming, 750mA+)

AP5724WUG-7 (Diodes Incorporated): 750mA, PWM, TSOT-23-6, 2.7V–5.5V input
LT1932ES6#TRPBF (Analog Devices): 40mA output, PWM, TSOT-23-6, 1V–10V input (lower current, wider input range)
LT3465AES6#TRMPBF (Analog Devices): 225mA, PWM, TSOT-23-6, 2.7V–16V input
MP3305DD-LF-P (Monolithic Power Systems): 1.33A, PWM, 8-QFN, 2.5V–6V input
RT8511BGQW (Richtek): 2.2A, PWM, 8-WDFN, 2.7V–24V input

Category B – Alternative Topologies (Step-Down Buck or Mixed)

LM3402MRX/NOPB (Texas Instruments): Step-Down (Buck), 500mA, PWM, 6V–42V input (different topology)
LT3474IFE#PBF (Analog Devices): Step-Down (Buck), 1A, PWM, 4.6V–36V input (automotive grade)
LT3478EFE-1#PBF (Analog Devices): Step-Down/Step-Up (Buck-Boost), 4.5A, PWM, 2.8V–36V input

Category C – Alternative Dimming Methods (I2C Control)

LM3556TME/NOPB (Texas Instruments): Step-Up (Boost), 1.5A (Flash), I2C, 16-DSBGA, 2.5V–5.5V input
LM3561TME/NOPB (Texas Instruments): Step-Up (Boost), 600mA (Flash), I2C, 12-DSBGA, 2.5V–5.5V input

Parameter Comparison

Part Number	Manufacturer	Topology	Dimming	Current (mA)	Input Min (V)	Input Max (V)	Frequency (MHz)	Package	Temp Range (°C)	RoHS	MSL
MIC2292-15YML-TR	Microchip	Boost	Analog, PWM	750	2.5	10	1.6	8-MLF®	-40 to 125	ROHS3	1
AP5724WUG-7	Diodes Inc.	Boost	PWM	750	2.7	5.5	1.2	TSOT-23-6	-40 to 85	ROHS3	1
LT1932ES6#TRPBF	Analog Devices	Boost	PWM	40	1	10	1.2	TSOT-23-6	-40 to 85	ROHS3	1
LT3465AES6#TRMPBF	Analog Devices	Boost	PWM	225	2.7	16	2.4	TSOT-23-6	-40 to 85	ROHS3	1
LM3402MRX/NOPB	Texas Instruments	Buck	PWM	500	6	42	1	8-PowerSOIC	-40 to 125	ROHS3	3
LM3556TME/NOPB	Texas Instruments	Boost	I2C	1500	2.5	5.5	4	16-DSBGA	-40 to 85	ROHS3	1
LM3561TME/NOPB	Texas Instruments	Boost	I2C	600	2.5	5.5	2	12-DSBGA	-40 to 85	ROHS3	1
LT3474IFE#PBF	Analog Devices	Buck	PWM	1000	4.6	36	0.2–2	16-TSSOP-EP	-40 to 125	ROHS3	1
LT3478EFE-1#PBF	Analog Devices	Buck-Boost	PWM	4500	2.8	36	0.2–2.25	16-TSSOP-EP	-40 to 125	ROHS3	1
MP3305DD-LF-P	Monolithic Power	Boost	PWM	1330	2.5	6	2.2	8-QFN	-40 to 85	ROHS3	1
RT8511BGQW	Richtek	Boost	PWM	2200	2.7	24	0.5	8-WDFN	-40 to 85	ROHS3	3

Engineering Selection Recommendations

For Direct Replacement (Boost Topology, PWM Dimming, 750mA Class):

AP5724WUG-7 is the closest functional equivalent. It maintains step-up boost topology, PWM dimming, and 750mA switch current. Input voltage range (2.7V–5.5V) is narrower than the original but covers typical backlight supply windows. Operating temperature maximum is 85°C versus 125°C for the MIC2292. Both devices are ROHS3 compliant with MSL 1 rating. Package change from 8-MLF® to TSOT-23-6 requires PCB layout modification.

For Higher Current Applications (>750mA):

MP3305DD-LF-P (1.33A) and RT8511BGQW (2.2A) provide increased switch current capacity while maintaining boost topology and PWM dimming. Both are ROHS3 compliant. RT8511BGQW offers wider input voltage range (2.7V–24V) and higher output voltage capability (43V) but has MSL 3 rating (168-hour moisture sensitivity) versus MSL 1. MP3305 maintains MSL 1 but limits input to 2.5V–6V.

For Extended Temperature Range (-40°C to 125°C):

LT3478EFE-1#PBF provides buck-boost topology with 4.5A switch current, PWM dimming, and full -40°C to 125°C operating range. Input voltage range (2.8V–36V) and output capability (42V) exceed the original specification. This device is suitable for automotive or industrial applications requiring temperature extremes. Package is 16-TSSOP-EP, requiring significant layout changes.

For I2C Dimming Control:

LM3556TME/NOPB and LM3561TME/NOPB replace analog/PWM dimming with I2C digital control. Both maintain boost topology and -40°C to 85°C operating range. LM3556 delivers 1.5A (flash mode) with 4MHz switching frequency; LM3561 delivers 600mA with 2MHz frequency. Both use BGA packages (16-DSBGA and 12-DSBGA respectively), requiring advanced assembly capabilities.

For Buck Topology Applications:

LM3402MRX/NOPB (500mA, 6V–42V input) and LT3474IFE#PBF (1A, 4.6V–36V input) are step-down regulators suitable when input voltage exceeds output requirements. LT3474 includes automotive-grade qualification. Both maintain PWM dimming and ROHS3 compliance. LM3402 has MSL 3 rating; LT3474 maintains MSL 1.

All recommended substitutes are ROHS3 compliant and carry REACH Unaffected status, matching the original part's regulatory compliance profile.

Frequently Asked Questions (FAQ)

Q: Can AP5724WUG-7 directly replace MIC2292-15YML-TR without circuit modification?

A: AP5724WUG-7 maintains functional equivalence in topology (boost), dimming method (PWM), and current rating (750mA). However, input voltage range differs: AP5724 operates 2.7V–5.5V versus MIC2292's 2.5V–10V. If your application uses input voltages below 2.7V or above 5.5V, this substitute is not suitable. Operating temperature maximum is also reduced from 125°C to 85°C. Package change from 8-MLF® to TSOT-23-6 requires PCB layout redesign.

Q: What is the difference between PWM and I2C dimming in the substitute options?

A: PWM dimming (analog pulse-width modulation) uses a variable-frequency or variable-duty-cycle signal to control LED brightness. I2C dimming uses digital communication protocol for brightness control. LM3556TME and LM3561TME employ I2C, requiring microcontroller integration. PWM-based substitutes (AP5724, LT3465, MP3305, RT8511) use simpler analog control signals. Select based on your system's control architecture.

Q: Why does RT8511BGQW have MSL 3 rating while MIC2292 has MSL 1?

A: MSL (Moisture Sensitivity Level) indicates the maximum time a component can be exposed to 85°C/85% relative humidity before soldering. MSL 1 allows unlimited exposure; MSL 3 limits exposure to 168 hours. RT8511BGQW requires stricter moisture control during storage and handling. If your supply chain or manufacturing environment cannot accommodate MSL 3 constraints, select MSL 1 alternatives (AP5724, LT1932, LT3465, MP3305, LT3474, LT3478, LM3556, LM3561).

Q: Can I use LT3478EFE-1#PBF as a drop-in replacement?

A: LT3478EFE-1#PBF is not a drop-in replacement. It uses buck-boost topology (step-down and step-up combined) versus the MIC2292's pure boost topology. This topology difference affects circuit design, inductor selection, and feedback network configuration. LT3478 is suitable only if your application requires both step-down and step-up capability. Package is also different (16-TSSOP-EP versus 8-MLF®).

Q: Which substitute offers the widest input voltage range?

A: LT3478EFE-1#PBF provides the widest input range (2.8V–36V) with buck-boost topology. For pure boost topology, LT3465AES6#TRMPBF offers 2.7V–16V input range. LT1932ES6#TRPBF extends to 1V–10V but delivers only 40mA output current, unsuitable for 750mA applications.

Q: Are all substitutes automotive-grade qualified?

A: Only LT3474IFE#PBF carries explicit automotive-grade qualification. Other substitutes are industrial-grade. If automotive qualification is required, LT3474 is the only option, though it uses buck topology and requires circuit redesign.

Q: What package options are available among substitutes?

A: Packages vary significantly: TSOT-23-6 (AP5724, LT1932, LT3465), 8-QFN (MP3305), 8-WDFN (RT8511), 8-PowerSOIC (LM3402), 16-TSSOP-EP (LT3474, LT3478), 16-DSBGA (LM3556), 12-DSBGA (LM3561). Select based on PCB layout constraints and assembly capabilities. BGA packages (DSBGA) require advanced soldering equipment.

Q: Do all substitutes support both analog and PWM dimming like the original?

A: No. MIC2292 supports both analog and PWM dimming. Most substitutes support PWM only (AP5724, LT1932, LT3465, MP3305, RT8511, LM3402, LT3474, LT3478). LM3556 and LM3561 use I2C digital control instead. If dual analog/PWM capability is critical, no direct substitute exists; consider design modification to use PWM-only control.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message