ISL9011IRLLZ Equivalent & Substitute Parts

Part Overview

The ISL9011IRLLZ is a linear voltage regulator IC manufactured by Renesas Electronics Corporation, designed for positive fixed dual-output applications with 150mA and 300mA output capabilities. This device features integrated protection mechanisms including over-current, over-temperature, soft start, and under-voltage lockout functionality. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Manufacturer	Renesas Electronics Corporation
Category	Power Management (PMIC)
Output Configuration	Positive Fixed, 2 Outputs
Output Voltage	2.9V, 2.9V
Current - Output	150mA, 300mA
Voltage - Input (Max)	6.5V
Voltage Dropout (Max)	0.2V @ 150mA, 0.325V @ 300mA
Current - Quiescent (Iq)	40 µA
Protection Features	Over Current, Over Temperature, Soft Start, UVLO
Operating Temperature	-40°C ~ 85°C
Package / Case	10-VFDFN Exposed Pad (3x3)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the ISL9011IRLLZ is determined by the following critical parameters:

Dual positive fixed output configuration at 2.9V
Output current capability of 150mA and 300mA per channel
Maximum input voltage tolerance of 5.5V or higher
Voltage dropout specifications within acceptable operational limits
Identical or compatible package footprint (10-pin DFN/MLF with 3x3mm dimensions)
Surface mount technology compatibility
Presence of enable control feature and core protection mechanisms (over-current, over-temperature)
RoHS3 compliance and MSL Level 1 rating

The MIC2211-OOYML-TR from Microchip Technology meets these substitution criteria while offering active product status and extended operating temperature range.

Parameter Comparison

Parameter	ISL9011IRLLZ (Renesas)	MIC2211-OOYML-TR (Microchip)	Compatibility Notes
Output Configuration	Positive Fixed, 2 Outputs	Positive Fixed, 2 Outputs	Identical
Output Voltage	2.9V, 2.9V	2.9V, 2.9V	Identical
Current - Output	150mA, 300mA	150mA, 300mA	Identical
Voltage - Input (Max)	6.5V	5.5V	MIC2211 has lower maximum input voltage; verify input source compliance
Voltage Dropout (Max)	0.2V @ 150mA, 0.325V @ 300mA	0.25V @ 150mA, 0.42V @ 300mA	MIC2211 exhibits higher dropout; acceptable for most applications
Current - Quiescent (Iq)	40 µA	80 µA	MIC2211 draws double quiescent current; consider for low-power designs
Operating Temperature	-40°C ~ 85°C	-40°C ~ 125°C	MIC2211 supports extended high-temperature operation
Package / Case	10-VFDFN Exposed Pad (3x3)	10-VFDFN Exposed Pad, 10-MLF® (3x3)	Footprint compatible; both packages support 3x3mm form factor
Control Features	Enable	Enable	Identical
Protection Features	Over Current, Over Temperature, Soft Start, UVLO	Over Current, Over Temperature	MIC2211 lacks soft start and UVLO; evaluate circuit requirements
Product Status	Obsolete	Active	MIC2211 offers ongoing availability and support
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
MSL Rating	1 (Unlimited)	1 (Unlimited)	Identical

Engineering Selection Recommendations

The MIC2211-OOYML-TR qualifies as a direct substitute for the obsolete ISL9011IRLLZ based on matching output configuration, voltage levels, current ratings, and package compatibility. Both devices maintain ROHS3 compliance and MSL Level 1 ratings, ensuring regulatory and manufacturing process alignment.

Key considerations for selection:

The MIC2211-OOYML-TR is an active product with ongoing manufacturer support, addressing the obsolescence status of the ISL9011IRLLZ.
Maximum input voltage differs (5.5V vs. 6.5V); confirm that circuit input sources remain within the 5.5V limit.
Quiescent current is doubled in the MIC2211 (80 µA vs. 40 µA); evaluate impact on standby power consumption.
Voltage dropout increases marginally (0.25V/0.42V vs. 0.2V/0.325V); verify that output voltage regulation remains acceptable under maximum load conditions.
The MIC2211 omits soft start and UVLO protection; assess whether these features are required by the application circuit.
Extended operating temperature range (-40°C to 125°C) of the MIC2211 provides additional thermal margin for high-temperature environments.

Frequently Asked Questions (FAQ)

Q: Can the MIC2211-OOYML-TR be used as a direct pin-for-pin replacement for the ISL9011IRLLZ?

A: Yes, the MIC2211-OOYML-TR is pin-compatible and footprint-compatible with the ISL9011IRLLZ. Both devices use the 10-pin DFN/MLF package with 3x3mm dimensions and identical pinout configuration for dual-output linear regulation.

Q: What is the impact of the lower maximum input voltage (5.5V) on the MIC2211-OOYML-TR compared to the ISL9011IRLLZ (6.5V)?

A: The MIC2211-OOYML-TR requires that input voltage sources remain below 5.5V. If your circuit design uses input voltages between 5.5V and 6.5V, the ISL9011IRLLZ specifications must be maintained, or the input supply must be redesigned to comply with the MIC2211 limit.

Q: How do the protection features differ between these two devices?

A: The ISL9011IRLLZ includes soft start and under-voltage lockout (UVLO) protection in addition to over-current and over-temperature protection. The MIC2211-OOYML-TR provides over-current and over-temperature protection only. Evaluate whether soft start and UVLO functionality are critical to your application before substitution.

Q: Does the higher quiescent current of the MIC2211-OOYML-TR affect battery-powered applications?

A: The MIC2211-OOYML-TR draws 80 µA quiescent current compared to 40 µA for the ISL9011IRLLZ. For battery-powered or ultra-low-power standby applications, this doubling of quiescent current may impact overall system power consumption. Calculate standby power requirements to determine acceptability.

Q: Are both devices suitable for high-temperature applications?

A: The MIC2211-OOYML-TR supports operating temperatures up to 125°C, while the ISL9011IRLLZ is rated to 85°C. For applications requiring operation above 85°C, the MIC2211-OOYML-TR provides extended thermal capability.

Q: What packaging options are available for the MIC2211?

A: The MIC2211-OOYML-TR is supplied in Tape & Reel (TR) packaging. The device is available in both 10-VFDFN and 10-MLF® package variants, both with 3x3mm footprints suitable for surface mount assembly.

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