LP3892ES-1.2 Equivalent & Substitute Parts

Part Overview

The LP3892ES-1.2 is a linear voltage regulator IC from Texas Instruments, classified as a Power Management (PMIC) component. It delivers a fixed positive output of 1.2V at 1.5A in a TO-263 (DDPAK-5) surface mount package. The device is currently marked as obsolete, making identification of equivalent and substitute parts essential for design continuity and procurement planning. This reference provides direct manufacturer equivalents and parametric alternatives that maintain electrical and mechanical compatibility.

Substiute Parts

LP3892ES-1.2

Texas InstrumentsIn Stock: 2296LP3892ES-1.2 Datasheet

Current PartRFQ

LP3892ES-1.2/NOPB

National SemiconductorIn Stock: 1185LP3892ES-1.2/NOPB Datasheet

DirectRFQ

LP38842S-1.2/NOPB

Texas InstrumentsIn Stock: 1304LP38842S-1.2/NOPB Datasheet

Parametric EquivalentRFQ

LP3882ES-1.2/NOPB

Texas InstrumentsIn Stock: 1395LP3882ES-1.2/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LP3892ES-1.2 are classified into two categories based on substitution type:

Direct Manufacturer Equivalent: LP3892ES-1.2/NOPB maintains identical electrical specifications and packaging. This part is sourced from National Semiconductor and represents a direct cross-reference with no parameter deviations.

Parametric Equivalents: LP38842S-1.2/NOPB and LP3882ES-1.2/NOPB are Texas Instruments parts that maintain the same output voltage (1.2V), output current (1.5A), input voltage rating (5.5V), operating temperature range (-40°C to 125°C), and package type (TO-263 DDPAK-5). These parts differ in voltage dropout specifications and supply current ratings, which are acceptable variations within the same functional class.

All substitute parts share the following critical parameters that define substitutability:

• Fixed positive output configuration
• 1.2V output voltage
• 1.5A output current capability
• TO-263 (DDPAK-5) surface mount package
• Enable control feature
• Over current, over temperature, and short circuit protection

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: LP3892ES-1.2/NOPB is the primary direct equivalent. This part maintains all electrical parameters and packaging specifications of the obsolete LP3892ES-1.2. It is currently in active production status, ensuring long-term availability.

For New Designs with Compliance Requirements: LP38842S-1.2/NOPB and LP3882ES-1.2/NOPB are preferred alternatives. Both parts are active products from Texas Instruments with ROHS3 compliance certification. LP3882ES-1.2/NOPB offers the closest electrical match with identical supply current specifications (8 mA) and improved voltage dropout (0.32V). LP38842S-1.2/NOPB provides superior voltage dropout performance (0.315V) but with elevated supply current (40 mA).

Compliance Considerations: The original LP3892ES-1.2 is RoHS non-compliant. For applications requiring RoHS3 compliance, LP38842S-1.2/NOPB or LP3882ES-1.2/NOPB are mandatory selections. Both alternatives carry REACH Unaffected status and EAR99 export classification, matching the regulatory profile of the original part.

Frequently Asked Questions (FAQ)

Q: Can LP3892ES-1.2/NOPB be used as a direct drop-in replacement for LP3892ES-1.2?

A: Yes. LP3892ES-1.2/NOPB maintains identical electrical specifications, output voltage (1.2V), output current (1.5A), voltage dropout (0.50V @ 1.5A), and TO-263 (DDPAK-5) package configuration. The part is pin-compatible and functionally equivalent.

Q: What is the difference between the direct equivalent and parametric equivalents?

A: LP3892ES-1.2/NOPB is a direct manufacturer equivalent with no parameter deviations. LP38842S-1.2/NOPB and LP3882ES-1.2/NOPB are parametric equivalents that maintain the same output voltage, current, and package but differ in voltage dropout and supply current specifications. All three are functionally compatible for the same application.

Q: Are LP38842S-1.2/NOPB and LP3882ES-1.2/NOPB interchangeable?

A: Both parts are compatible substitutes with identical output voltage (1.2V), output current (1.5A), and package type (TO-263 DDPAK-5). LP3882ES-1.2/NOPB has lower supply current (8 mA vs. 40 mA) and slightly lower voltage dropout (0.32V vs. 0.315V). Selection depends on power budget and thermal requirements of the specific application.

Q: Does the package type remain the same across all substitute parts?

A: Yes. All substitute parts use the TO-263 (DDPAK-5) surface mount package with 5 leads plus tab configuration. PCB layout and thermal management considerations remain unchanged.

Q: What is the impact of voltage dropout differences on circuit performance?

A: Voltage dropout determines the minimum input voltage required to maintain regulated output. The original LP3892ES-1.2 requires 0.50V headroom. LP3882ES-1.2/NOPB and LP38842S-1.2/NOPB require 0.32V and 0.315V respectively, allowing operation with lower input voltages. This is beneficial for battery-powered or low-voltage supply applications.

Q: Are there RoHS compliance differences between substitute parts?

A: Yes. The original LP3892ES-1.2 is RoHS non-compliant. LP38842S-1.2/NOPB and LP3882ES-1.2/NOPB are both ROHS3 compliant. For applications requiring RoHS certification, these alternatives are mandatory.

Q: What is the inventory status of substitute parts?

A: LP3892ES-1.2/NOPB has 1152 pieces in stock. LP38842S-1.2/NOPB has 1205 pieces in stock. LP3882ES-1.2/NOPB has 1328 pieces in stock. All substitute parts are currently available as new original stock.