LP5996SD-2828 Equivalent & Substitute Parts

Part Overview

The LP5996SD-2828 is a linear voltage regulator IC from Texas Instruments designed for positive fixed output applications. This dual-output regulator delivers 150mA and 300mA at a fixed 2.8V output with a maximum input voltage of 6V. The device integrates over-temperature and short-circuit protection with an enable control feature, making it suitable for low-power management applications requiring dual regulated outputs.

The LP5996SD-2828 carries an obsolete product status. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this regulator.

Key Parameters

Parameter	Value
Output Configuration	Positive
Output Type	Fixed
Number of Regulators	2
Voltage - Input (Max)	6V
Voltage - Output (Min/Fixed)	2.8V
Voltage Dropout (Max)	0.22V @ 150mA, 0.55V @ 300mA
Current - Output	150mA, 300mA
Current - Quiescent (Iq)	110 µA
Current - Supply (Max)	170 µA
PSRR	58dB ~ 45dB, 70dB ~ 60dB (1kHz ~ 20kHz)
Control Features	Enable
Protection Features	Over Temperature, Short Circuit
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	10-WFDFN Exposed Pad
Supplier Device Package	10-SON (3x3)

Substitute Part Grouping Explanation

Substitution eligibility for the LP5996SD-2828 is determined by strict equivalence across the following critical parameters:

Output configuration (Positive)
Output type (Fixed)
Number of regulators (2)
Maximum input voltage (6V)
Fixed output voltage (2.8V)
Output current ratings (150mA, 300mA)
Voltage dropout specifications (0.22V @ 150mA, 0.55V @ 300mA)
Quiescent current (110 µA)
Protection features (Over Temperature, Short Circuit)
Operating temperature range (-40°C ~ 85°C)
Package type (10-WFDFN Exposed Pad / 10-SON 3x3)

Only parts meeting all these electrical and mechanical specifications qualify as direct substitutes. Packaging format differences (such as tape & reel versus bulk) do not affect functional equivalence.

Parameter Comparison

Parameter	LP5996SD-2828	LP5996SD-2828/NOPB
Manufacturer	Texas Instruments	Texas Instruments
Category	Power Management (PMIC)	Power Management (PMIC)
Output Configuration	Positive	Positive
Output Type	Fixed	Fixed
Number of Regulators	2	2
Voltage - Input (Max)	6V	6V
Voltage - Output (Min/Fixed)	2.8V	2.8V
Voltage Dropout (Max)	0.22V @ 150mA, 0.55V @ 300mA	0.22V @ 150mA, 0.55V @ 300mA
Current - Output	150mA, 300mA	150mA, 300mA
Current - Quiescent (Iq)	110 µA	110 µA
Current - Supply (Max)	170 µA	170 µA
PSRR	58dB ~ 45dB, 70dB ~ 60dB (1kHz ~ 20kHz)	58dB ~ 45dB, 70dB ~ 60dB (1kHz ~ 20kHz)
Control Features	Enable	Enable
Protection Features	Over Temperature, Short Circuit	Over Temperature, Short Circuit
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount
Package / Case	10-WFDFN Exposed Pad	10-WFDFN Exposed Pad
Supplier Device Package	10-SON (3x3)	10-SON (3x3)
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Packaging Format	Bulk	Tape & Reel (TR)

Engineering Selection Recommendations

The LP5996SD-2828/NOPB is a direct functional equivalent to the LP5996SD-2828. Both parts are manufactured by Texas Instruments and share identical electrical specifications and package geometry.

The primary distinction between these parts is product status and regulatory compliance. The LP5996SD-2828 is obsolete, while the LP5996SD-2828/NOPB maintains active product status. Additionally, the LP5996SD-2828/NOPB is ROHS3 compliant, whereas the original part is RoHS non-compliant. For new designs or systems requiring regulatory compliance with current environmental standards, the LP5996SD-2828/NOPB is the appropriate selection.

The packaging format difference (tape & reel versus bulk) reflects supply chain configuration and does not affect electrical or mechanical compatibility. Component selection should prioritize the active, compliant variant to ensure long-term availability and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can LP5996SD-2828/NOPB be used as a direct replacement for LP5996SD-2828?

A: Yes. Both parts are electrically and mechanically identical. They share the same output voltage (2.8V), current ratings (150mA, 300mA), input voltage specification (6V max), dropout voltage, quiescent current, protection features, and 10-SON (3x3) package geometry. The primary difference is product status and RoHS compliance.

Q: What is the significance of the "/NOPB" suffix?

A: The "/NOPB" designation indicates the part is supplied in tape & reel packaging format without plumbum (lead-free). This is a packaging and compliance variant of the base part number LP5996SD-2828.

Q: Are there any compatibility concerns when substituting these parts?

A: No compatibility concerns exist. The parts are pin-for-pin compatible and functionally equivalent. PCB layout, schematic connections, and thermal management requirements remain unchanged.

Q: Why is the original LP5996SD-2828 marked as obsolete?

A: Product obsolescence is determined by the manufacturer based on market demand and product lifecycle decisions. The LP5996SD-2828/NOPB remains in active production and is the recommended selection for ongoing applications.

Q: Does RoHS compliance affect electrical performance?

A: No. RoHS compliance relates to material composition and environmental standards, not electrical performance. Both parts deliver identical functional characteristics.

Q: What is the difference between bulk and tape & reel packaging?

A: Bulk packaging supplies components in loose form, while tape & reel packaging provides components on continuous carrier tape suitable for automated assembly equipment. Electrical and mechanical specifications are identical; the difference is logistical and assembly-related.

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