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

Part Overview

The MIC2292-15BML-TR is a LED Driver IC manufactured by Microchip Technology, designed as a 1-output DC-DC regulator with step-up (boost) topology. It features analog and PWM dimming capability with a 750mA switch current rating, operating across a 2.5V to 10V supply range. The device is packaged in an 8-MLF® (2x2) form factor and is optimized for backlight applications.

This part is currently discontinued at DiGi Electronics. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain resilience, and support ongoing production requirements.

Key Parameters

Parameter	Value
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	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the MIC2292-15BML-TR are categorized based on the following critical parameters that determine functional equivalence:

Primary Substitution Criteria:

Topology: Step-Up (Boost) DC-DC Regulator
Number of Outputs: 1
Dimming Capability: Analog, PWM, or PWM-only
Supply Voltage Range: Minimum 2.5V, Maximum ≥10V
Output Current: ≥750mA switch current or equivalent performance class
Applications: Backlight or compatible lighting applications
Operating Temperature: -40°C minimum, 125°C or 85°C maximum
Package Type: Surface mount (8-MLF®, SOT-23-6, SC-70-6, SC-70-8, or equivalent)
RoHS Compliance: Preferred for new designs (ROHS3 Compliant)

Grouping Logic: Substitutes are organized by functional equivalence within the boost converter LED driver category. Parts with identical or superior electrical specifications and compatible packaging are considered direct or near-direct replacements. Parts with lower current ratings or different topologies are listed as functional alternatives for specific application constraints.

Parameter Comparison

Parameter	MIC2292-15BML-TR	MIC2292-15YML-TR	ADP1650ACBZ-R7	IS31BL3508B-STLS2-TR	LM3407MY/NOPB	LM3530TME-40/NOPB	LT1937ESC6#TRMPBF	LT3465ES6#TRPBF	LT3491ESC8#TRMPBF	MAX8595ZETA+T
Manufacturer	Microchip	Microchip	Analog Devices	Lumissil	Texas Instruments	Texas Instruments	Analog Devices	Analog Devices	Analog Devices	Analog Devices/Maxim
Type	DC DC Regulator	DC DC Regulator	DC DC Regulator	DC DC Regulator	DC DC Regulator	DC DC Regulator	DC DC Regulator	DC DC Regulator	DC DC Regulator	DC DC Regulator
Topology	Step-Up (Boost)	Step-Up (Boost)	Step-Up (Boost)	Step-Up (Boost)	Step-Down (Buck)	Step-Up (Boost)	Step-Up (Boost)	Step-Up (Boost)	Step-Up (Boost)	Step-Up (Boost)
Number of Outputs	1	1	1	1	1	1	1	1	1	1
Voltage Supply (Min)	2.5V	2.5V	2.7V	2.7V	4.5V	2.7V	2.5V	2.7V	2.5V	2.6V
Voltage Supply (Max)	10V	10V	5V	5.5V	30V	5.5V	10V	16V	12V	5.5V
Current Output / Channel	750mA (Switch)	750mA (Switch)	1.5A (Flash)	1.2A (Switch)	350mA	30mA	320mA (Switch)	225mA (Switch)	350mA (Switch)	25mA
Frequency	1.6MHz	1.6MHz	1.5MHz, 3MHz	1MHz	300kHz ~ 1MHz	500kHz	1.2MHz	1.2MHz	2.3MHz	1MHz
Dimming	Analog, PWM	Analog, PWM	I2C	Analog, PWM	PWM	PWM	Analog, PWM	PWM	PWM	Analog, PWM
Applications	Backlight	Backlight	Camera Flash	Backlight	Lighting	Backlight	Backlight	Backlight	Backlight	Backlight
Operating Temperature	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 125°C (TJ)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Package / Case	8-VFDFN Exposed Pad, 8-MLF®	8-VFDFN Exposed Pad, 8-MLF®	12-WFBGA, WLCSP	SOT-23-6	8-PowerTSSOP, 8-MSOP	12-WFBGA, DSBGA	6-TSSOP, SC-88, SOT-363	SOT-23-6 Thin, TSOT-23-6	8-VFSOP	8-WDFN Exposed Pad
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	3 (168 Hours)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Discontinued	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Tier 1 - Direct Parametric Equivalent (Preferred):

MIC2292-15YML-TR is the primary substitute for MIC2292-15BML-TR. Both parts share identical electrical specifications (2.5V–10V supply, 750mA switch current, 1.6MHz frequency, analog/PWM dimming) and package type (8-MLF®). The key difference is product status: MIC2292-15YML-TR is active with ROHS3 compliance and higher inventory availability (1095 pcs vs. 822 pcs). This part requires no circuit redesign and provides direct pin-for-pin compatibility.

Tier 2 - Functional Equivalents with Higher Current Capability:

IS31BL3508B-STLS2-TR (Lumissil) and ADP1650ACBZ-R7 (Analog Devices) offer superior current handling (1.2A and 1.5A respectively) within compatible supply ranges. IS31BL3508B-STLS2-TR maintains the 2.7V–5.5V supply window and analog/PWM dimming, though in SOT-23-6 package. ADP1650ACBZ-R7 operates at 2.7V–5V with I2C dimming control and 12-WLCSP package, suitable for applications requiring digital control. Both are ROHS3 compliant and active products.

Tier 3 - Functional Alternatives with Reduced Current or Modified Specifications:

LT1937ESC6#TRMPBF (320mA), LT3465ES6#TRPBF (225mA), and LT3491ESC8#TRMPBF (350mA) provide boost conversion with analog/PWM dimming in compact packages (SC-70-6, TSOT-23-6, SC-70-8). These are suitable for lower-power backlight applications or where package constraints require smaller form factors. All are ROHS3 compliant and active.

LM3530TME-40/NOPB and LM3530UMX-40B/NOPB (Texas Instruments) deliver 30mA output current in 12-DSBGA package, appropriate for ultra-low-power backlight drivers with PWM dimming.

LM3407MY/NOPB (Texas Instruments) uses step-down (buck) topology with 350mA current and 4.5V–30V supply range, suitable only for applications where input voltage exceeds desired output voltage.

MAX8595ZETA+T (Analog Devices/Maxim) provides 25mA output in 8-TDFN package with analog/PWM dimming, optimized for minimal-current backlight applications.

Compliance and Supply Chain Considerations:

All recommended substitutes except the original MIC2292-15BML-TR are ROHS3 compliant, supporting modern regulatory requirements. Inventory levels vary: MIC2292-15YML-TR (1095 pcs), ADP1650ACBZ-R7 (12162 pcs), IS31BL3508B-STLS2-TR (3531 pcs), and LT3465ES6#TRPBF (5520 pcs) offer strong availability. All substitutes maintain MSL 1 (unlimited) or MSL 3 (168 hours) moisture sensitivity, compatible with standard handling and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can MIC2292-15YML-TR be used as a direct replacement for MIC2292-15BML-TR?

A: Yes. MIC2292-15YML-TR is a parametric equivalent with identical electrical specifications and package type. The primary differences are product status (active vs. discontinued) and RoHS compliance (ROHS3 vs. non-compliant). No circuit modifications are required.

Q: What is the key difference between MIC2292-15BML-TR and IS31BL3508B-STLS2-TR?

A: IS31BL3508B-STLS2-TR provides higher switch current (1.2A vs. 750mA) and operates within a narrower supply range (2.7V–5.5V vs. 2.5V–10V). The package differs (SOT-23-6 vs. 8-MLF®), requiring PCB layout changes. Both support analog/PWM dimming for backlight applications.

Q: Why is ADP1650ACBZ-R7 listed as a substitute if it uses I2C dimming instead of analog/PWM?

A: ADP1650ACBZ-R7 is a functional alternative for applications requiring digital dimming control via I2C interface. It provides higher current capability (1.5A flash current) and is ROHS3 compliant. It is suitable only for designs where I2C control is acceptable or preferred.

Q: Can LM3407MY/NOPB replace MIC2292-15BML-TR in a backlight application?

A: LM3407MY/NOPB uses step-down (buck) topology, not step-up (boost). It is suitable only for applications where input voltage exceeds the desired output voltage. For typical backlight boost conversion from low input voltages, this part is not recommended.

Q: What is the significance of MSL (Moisture Sensitivity Level) in selecting a substitute?

A: MSL indicates moisture sensitivity during storage and handling. MIC2292-15BML-TR and most substitutes are MSL 1 (unlimited shelf life without desiccant). IS31BL3508B-STLS2-TR is MSL 3 (168-hour limit), requiring desiccant storage and bake-out procedures before reflow soldering. MSL 1 parts are preferred for supply chain flexibility.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitutes except the original MIC2292-15BML-TR are ROHS3 compliant. The original part is RoHS non-compliant. For new designs or regulatory compliance requirements, ROHS3-compliant substitutes are mandatory.

Q: What package types are available among the substitutes?

A: Substitutes are available in multiple packages: 8-MLF® (MIC2292-15YML-TR), SOT-23-6 (IS31BL3508B-STLS2-TR, LT3465ES6#TRPBF), SC-70-6 (LT1937ESC6#TRMPBF), SC-70-8 (LT3491ESC8#TRMPBF), 12-DSBGA (LM3530 variants), 12-WLCSP (ADP1650ACBZ-R7), 8-HVSSOP (LM3407MY/NOPB), and 8-TDFN (MAX8595ZETA+T). Package selection depends on PCB space constraints and thermal requirements.

Q: Which substitute offers the best inventory availability?

A: ADP1650ACBZ-R7 has the highest inventory (12162 pcs), followed by LT3465ES6#TRPBF (5520 pcs) and IS31BL3508B-STLS2-TR (3531 pcs). MIC2292-15YML-TR (1095 pcs) provides the closest parametric match with adequate stock levels.

Q: What is the operating temperature range difference between substitutes?

A: MIC2292-15BML-TR and MIC2292-15YML-TR operate to 125°C (TJ), while most substitutes operate to 85°C (TA). LM3407MY/NOPB also reaches 125°C (TJ). For high-temperature applications, MIC2292-15YML-TR or LM3407MY/NOPB are preferred, though topology differences apply to LM3407MY/NOPB.

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