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IPS031RTRL Equivalent & Substitute Parts
Part Overview
The IPS031RTRL is a Power Management IC (PMIC) manufactured by Infineon Technologies, functioning as a general-purpose N-channel power switch/driver with 1:1 configuration and low-side output topology. This device is rated for 3.3A maximum output current with a 45mOhm typical on-resistance, operating across a -40°C to 150°C junction temperature range. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Infineon Technologies |
| Part Number | IPS031RTRL |
| Category | Power Management (PMIC) |
| Product Status | Obsolete |
| Switch Type | General Purpose |
| Output Configuration | Low Side, N-Channel, 1:1 |
| Maximum Load Voltage | 35V |
| Maximum Output Current | 3.3A |
| On-Resistance (Typical) | 45mOhm |
| Operating Temperature Range | -40°C to 150°C (TJ) |
| Package Type | TO-252-3, DPAK (2 Leads + Tab), SC-63 |
| Mounting Type | Surface Mount |
| Fault Protection | Current Limiting (Fixed), Over Temperature |
| RoHS Status | RoHS non-compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the IPS031RTRL is determined by the following critical parameters:
- Output Configuration: Low-side N-channel topology with 1:1 input-to-output ratio
- Interface Type: On/Off control with non-inverting input
- Package Compatibility: TO-252-3 DPAK form factor (2 Leads + Tab)
- Electrical Performance: Maximum load voltage ≥35V, maximum output current ≥3.3A, operating temperature range -40°C to 150°C
- Fault Protection: Current limiting and over-temperature protection as minimum requirements
The VND3NV04TR-E from STMicroelectronics meets all substitution criteria, offering equivalent functional topology with enhanced electrical specifications and active product status.
Parameter Comparison
| Parameter | IPS031RTRL (Infineon) | VND3NV04TR-E (STMicroelectronics) | Compatibility |
|---|---|---|---|
| Switch Type | General Purpose | General Purpose | Match |
| Output Configuration | Low Side, N-Channel, 1:1 | Low Side, N-Channel, 1:1 | Match |
| Interface | On/Off, Non-Inverting | On/Off, Non-Inverting | Match |
| Maximum Load Voltage | 35V | 36V | Compatible (higher rating) |
| Maximum Output Current | 3.3A | 3.5A | Compatible (higher rating) |
| On-Resistance (Typical) | 45mOhm | 120mOhm (Max) | Acceptable (higher value) |
| Operating Temperature Range | -40°C to 150°C (TJ) | -40°C to 150°C (TJ) | Match |
| Package Type | TO-252-3, DPAK | TO-252-3, DPAK | Match |
| Mounting Type | Surface Mount | Surface Mount | Match |
| Fault Protection | Current Limiting (Fixed), Over Temperature | Current Limiting (Fixed), Over Temperature, Over Voltage | Compatible (enhanced protection) |
| Product Status | Obsolete | Active | Substitute is active |
Engineering Selection Recommendations
The VND3NV04TR-E is the qualified substitute for the IPS031RTRL based on the following engineering criteria:
Functional Equivalence: Both devices implement identical low-side N-channel power switch topology with 1:1 configuration and on/off control interface. Pin-compatible DPAK packaging enables direct board-level replacement without layout modification.
Electrical Compatibility: The VND3NV04TR-E exceeds minimum electrical requirements with 36V maximum load voltage (versus 35V) and 3.5A maximum output current (versus 3.3A). The higher on-resistance specification (120mOhm maximum versus 45mOhm typical) must be evaluated within the context of specific application thermal and power dissipation requirements.
Compliance Status: The VND3NV04TR-E is ROHS3 compliant and carries active product status, ensuring long-term availability and manufacturing support. The IPS031RTRL is RoHS non-compliant and obsolete, necessitating transition to an alternative.
Enhanced Protection: The VND3NV04TR-E includes over-voltage fault protection in addition to current limiting and over-temperature protection, providing superior system-level reliability.
Frequently Asked Questions (FAQ)
Q: Can the VND3NV04TR-E directly replace the IPS031RTRL without PCB modifications?
A: Yes. Both devices use identical TO-252-3 DPAK packaging with matching pin configurations. Direct board-level substitution is possible without layout changes.
Q: What is the impact of the higher on-resistance in the VND3NV04TR-E?
A: The VND3NV04TR-E specifies 120mOhm maximum on-resistance compared to the IPS031RTRL's 45mOhm typical value. This results in increased power dissipation at equivalent current levels. Thermal analysis is required to confirm acceptability within the application's thermal budget.
Q: Are there any compliance differences between these parts?
A: The VND3NV04TR-E is ROHS3 compliant with active product status, while the IPS031RTRL is RoHS non-compliant and obsolete. For new designs or production continuity, the VND3NV04TR-E is the recommended choice.
Q: Does the additional over-voltage protection in the VND3NV04TR-E affect circuit operation?
A: No. Over-voltage protection is a passive fault response mechanism that activates only when load voltage exceeds device ratings. Under normal operating conditions within specified voltage limits, this feature does not affect circuit behavior.
Q: What packaging options are available for the VND3NV04TR-E?
A: The VND3NV04TR-E is supplied in Cut Tape (CT) and Digi-Reel® packaging formats, with 27,700 pieces currently in stock.
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