TPS2236DAP Equivalent & Substitute Parts

Part Overview

The TPS2236DAP is a Power Management Integrated Circuit (PMIC) functioning as a power switch/driver with 1:2 input-to-output ratio and 1.3A maximum output current. Designed for ExpressCard™ switching applications, this component operates across a -40°C to 85°C temperature range and supports load voltages of 1.5V and 3.3V. The device is classified as obsolete, necessitating identification of active equivalent components to maintain design continuity and ensure long-term supply chain reliability.

Substiute Parts

TPS2236DAP

Texas InstrumentsIn Stock: 1186TPS2236DAP Datasheet

Current PartRFQ

TPS2231PWPR

Texas InstrumentsIn Stock: 15112TPS2231PWPR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPS2236DAP is determined by strict alignment of the following critical parameters:

• Manufacturer: Texas Instruments (same manufacturer ensures design compatibility and support continuity)
• Switch Type: ExpressCard™ Switch (functional category requirement)
• Output Configuration: High Side (circuit topology requirement)
• Voltage - Load: 1.5V, 3.3V (operating voltage compatibility)
• Current - Output (Max): 1.3A (current handling capacity)
• Rds On (Typ): 45mOhm (on-resistance specification)
• Features: Power Good, Status Flag (functional feature set)
• Fault Protection: Current Limiting (Fixed), Over Temperature (protection mechanisms)
• Operating Temperature: -40°C ~ 85°C (TA) (thermal operating range)
• Mounting Type: Surface Mount (assembly compatibility)
• RoHS Status: ROHS3 Compliant (regulatory compliance)

The TPS2231PWPR qualifies as a manufacturer-recommended substitute based on matching all critical electrical and functional parameters. Differences in input-to-output ratio (1:1 vs. 1:2), number of outputs (3 vs. 6), and package configuration (24-HTSSOP vs. 32-HTSSOP) require circuit-level design evaluation for specific applications.

Parameter Comparison

Engineering Selection Recommendations

The TPS2231PWPR is designated as the manufacturer-recommended substitute for the obsolete TPS2236DAP. This recommendation is supported by:

• Product Status Alignment: The TPS2231PWPR maintains active product status, ensuring ongoing manufacturer support, documentation availability, and supply chain continuity.
• Regulatory Compliance: Both components maintain ROHS3 compliance and EAR99 ECCN classification, satisfying regulatory requirements for equivalent component selection.
• Electrical Equivalence: Matching current output capacity (1.3A), on-resistance (45mOhm), operating temperature range (-40°C ~ 85°C), and load voltage support (1.5V, 3.3V) establish functional equivalence for power switching applications.
• Moisture Sensitivity: The TPS2231PWPR exhibits improved moisture sensitivity (MSL 2 vs. MSL 3), providing enhanced reliability during storage and handling.

Design modifications are required to accommodate differences in input-to-output ratio (1:1 vs. 1:2) and output channel count (3 vs. 6), necessitating circuit topology evaluation for specific applications.

Frequently Asked Questions (FAQ)

Q: Can the TPS2231PWPR directly replace the TPS2236DAP without circuit modifications?

A: Direct pin-for-pin replacement is not possible due to package differences (24-HTSSOP vs. 32-HTSSOP) and differing output configurations (1:1 ratio with 3 outputs vs. 1:2 ratio with 6 outputs). Circuit-level design evaluation is required.

Q: What are the key electrical parameters that determine substitution eligibility?

A: Substitution eligibility is determined by matching manufacturer (Texas Instruments), switch type (ExpressCard™), output configuration (High Side), maximum output current (1.3A), on-resistance (45mOhm), operating temperature range (-40°C ~ 85°C), and fault protection mechanisms (Current Limiting and Over Temperature).

Q: How do the package differences affect component selection?

A: The TPS2236DAP uses a 32-PowerTSSOP package (0.240" width), while the TPS2231PWPR uses a 24-PowerTSSOP package (0.173" width). These differences require PCB layout modifications and may affect thermal management characteristics.

Q: What is the significance of the input-to-output ratio difference?

A: The TPS2236DAP operates with a 1:2 ratio (one input controlling two outputs), while the TPS2231PWPR operates with a 1:1 ratio (one input per output). This difference affects circuit topology and requires design-level evaluation for specific applications.

Q: Does the improved moisture sensitivity of the TPS2231PWPR provide any advantages?

A: The TPS2231PWPR exhibits MSL 2 (1 Year) compared to the TPS2236DAP's MSL 3 (168 Hours), indicating improved tolerance to moisture exposure during storage and handling, which may reduce component degradation risk in humid environments.