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LP3470IM5-2.93 Equivalent & Substitute Parts Reference
Part Overview
The LP3470IM5-2.93 from Texas Instruments is a Power Management IC (PMIC) Supervisor designed to monitor a single voltage rail, providing simple reset/power-on reset functionality with an open drain/open collector output. It operates in a SOT-23-5 (SC-74A, SOT-753) package and is intended for surface mount applications. This product is classified as Obsolete, making it necessary to identify suitable alternative models to ensure continued support and replacement in designs that specify this supervisor IC.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Category | Power Management (PMIC) |
| Description | IC SUPERVISOR 1 CHANNEL SOT23-5 |
| Type | Simple Reset/Power-On Reset |
| Number of Voltages Monitored | 1 |
| Voltage - Threshold | 2.93V |
| Output | Open Drain or Open Collector |
| Reset | Active Low |
| Reset Timeout | 1ms Minimum |
| Operating Temperature | -40°C ~ 85°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
Substitute parts are determined by strict matching of key electrical and mechanical parameters within the Power Management (PMIC) Supervisor product category. The following parameters are considered essential for substitution:
- Manufacturer
- Category
- Type
- Number of Voltages Monitored
- Voltage Threshold (and acceptable variation)
- Output type
- Reset logic
- Reset Timeout
- Operating Temperature range
- Mounting Type
- Package / Case format
- Environmental compliance (RoHS, REACH)
- Moisture Sensitivity Level (MSL)
These parameters ensure functional and physical compatibility for drop-in replacement or alternative sourcing.
Parameter Comparison
| Parameter | LP3470IM5-2.93 (Main) |
LP3470IM5-2.93/NOPB (Direct Substitute) |
LP3470A263DBVR (MFR Recommended) |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Category | Power Management (PMIC) | Power Management (PMIC) | Power Management (PMIC) |
| Description | IC SUPERVISOR 1 CHANNEL SOT23-5 | IC SUPERVISOR 1 CHANNEL SOT23-5 | IC SUPERVISOR 1 CHANNEL SOT23-5 |
| Type | Simple Reset/Power-On Reset | Simple Reset/Power-On Reset | Simple Reset/Power-On Reset |
| Number of Voltages Monitored | 1 | 1 | 1 |
| Voltage - Threshold | 2.93V | 2.93V | 2.63V |
| Output | Open Drain or Open Collector | Open Drain or Open Collector | Open Drain or Open Collector |
| Reset | Active Low | Active Low | Active Low |
| Reset Timeout | 1ms Minimum | 1ms Minimum | 619ms Typical |
| Operating Temperature | -40°C ~ 85°C (TJ) | -40°C ~ 85°C (TJ) | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | SC-74A, SOT-753 | SC-74A, SOT-753 | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 | SOT-23-5 | SOT-23-5 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected | REACH Unaffected |
| Product Status | Obsolete | Not For New Designs | Active |
Engineering Selection Recommendations
When selecting alternates for LP3470IM5-2.93, consider the product status and environmental compliance. LP3470IM5-2.93 is Obsolete. LP3470IM5-2.93/NOPB is Not For New Designs, and LP3470A263DBVR is Active. All parts listed meet ROHS3 and REACH environmental compliance and share the same moisture sensitivity level (MSL 1). Physical packaging and mounting format are fully compatible.
Frequently Asked Questions (FAQ)
Q1: What are the main criteria for substituting LP3470IM5-2.93?
A1: Key substitution criteria include voltage threshold, number of voltages monitored, output type, reset logic, reset timeout, package format, mounting type, operating temperature range, and environmental compliance.
Q2: Are the substitute parts physically compatible with existing designs?
A2: All compared parts share the same package (SOT-23-5/SC-74A, SOT-753) and are intended for surface mount applications, ensuring mechanical compatibility.
Q3: How do environmental compliance and certifications affect selection?
A3: All parts are ROHS3 compliant and REACH unaffected with MSL 1 rating, supporting unrestricted assembly and environmental requirements.
Q4: What considerations are important when the reset timeout or voltage threshold differ?
A4: Reset timeout and voltage threshold variations are explicit in the parameter table. Selection depends on whether the application design can accommodate these differences.
Q5: What is the recommended substitute for long-term supply?
A5: Based on product status only, LP3470A263DBVR is classified as Active, while LP3470IM5-2.93/NOPB is Not For New Designs.
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