TPS61193PWPR Equivalent & Substitute Parts

Part Overview

The TPS61193PWPR is an active LED driver IC manufactured by Texas Instruments, designed for backlight applications requiring multi-output DC-DC regulation. This SEPIC topology regulator with PWM dimming capability operates across a 4.5V to 45V supply range and delivers 100mA per channel across three outputs. The part is currently in active production status with 3100 units available in inventory.

Alternative components become necessary when addressing specific application constraints such as automotive qualification requirements, different packaging formats, alternative topologies, or varying current delivery specifications.

Substiute Parts

TPS61193PWPR

Texas InstrumentsIn Stock: 3170TPS61193PWPR Datasheet

Current PartRFQ

TPS61193PWPRQ1

Texas InstrumentsIn Stock: 4419TPS61193PWPRQ1 Datasheet

Parametric EquivalentRFQ

ISL97683IRTZ-TK

Renesas Electronics CorporationIn Stock: 1449ISL97683IRTZ-TK Datasheet

MFR RecommendedRFQ

LT3003EMSE#PBF

Analog Devices Inc.In Stock: 2712LT3003EMSE#PBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TPS61193PWPR is determined by the following critical parameters:

Primary Substitution Criteria:

• Topology classification (SEPIC, Step-Up Boost, or equivalent multi-output regulation)
• Number of outputs (3 outputs required)
• Supply voltage range compatibility (minimum 4.5V input capability)
• Output voltage capability (45V minimum)
• Current delivery per channel (100mA or greater)
• PWM dimming control support
• Surface mount packaging format
• Operating temperature range (-40°C to 125°C or wider)

Substitute Parts Identified:

1. TPS61193PWPRQ1 (Texas Instruments) – Parametric equivalent with automotive qualification
2. ISL97683IRTZ-TK (Renesas Electronics) – Functional equivalent with reduced current rating
3. LT3003EMSE#PBF (Analog Devices) – Functional equivalent with enhanced current capability and dual topology support

Parameter Comparison

Engineering Selection Recommendations

TPS61193PWPRQ1 (Texas Instruments)

This part is a direct parametric equivalent to the TPS61193PWPR with identical electrical specifications and package format. The primary distinction is automotive qualification under AEC-Q100 standard. Selection of this variant is appropriate for applications requiring automotive-grade components or when sourcing from alternative packaging formats (Cut Tape & Digi-Reel versus Tape & Reel).

ISL97683IRTZ-TK (Renesas Electronics)

This part provides functional equivalence with three outputs, PWM dimming, and boost topology. The maximum supply voltage is limited to 26.5V compared to 45V for the TPS61193PWPR. Current delivery per channel is reduced to 50mA. The operating temperature range is constrained to -40°C to 85°C. Selection is appropriate only when the reduced current rating and lower maximum supply voltage are compatible with application requirements. The 16-TQFN package represents a significant footprint reduction.

LT3003EMSE#PBF (Analog Devices)

This part supports both buck and boost topologies with three outputs and PWM dimming. Current delivery per channel is enhanced to 350mA, providing greater headroom than the TPS61193PWPR. The minimum supply voltage is reduced to 3V, expanding input range flexibility. The maximum supply voltage is limited to 40V. The 10-MSOP-EP package is significantly smaller than the 20-PowerTSSOP. Selection is appropriate for applications requiring higher current delivery or lower input voltage operation.

Frequently Asked Questions (FAQ)

Q: Can TPS61193PWPRQ1 be used as a direct replacement for TPS61193PWPR?

A: Yes. The TPS61193PWPRQ1 maintains identical electrical specifications, topology, output count, and package format. The automotive qualification (AEC-Q100) is an additional feature that does not affect compatibility in non-automotive applications.

Q: Is ISL97683IRTZ-TK suitable for applications requiring 100mA per channel?

A: No. The ISL97683IRTZ-TK is rated for 50mA per channel maximum. Applications requiring 100mA per channel must use the TPS61193PWPR, TPS61193PWPRQ1, or LT3003EMSE#PBF.

Q: What is the primary advantage of LT3003EMSE#PBF over TPS61193PWPR?

A: The LT3003EMSE#PBF delivers 350mA per channel compared to 100mA for the TPS61193PWPR, providing significantly higher current capability. Additionally, it supports both buck and boost topologies, offering greater circuit design flexibility. The 10-MSOP-EP package is substantially smaller than the 20-PowerTSSOP.

Q: Are there supply voltage limitations when substituting with ISL97683IRTZ-TK?

A: Yes. The ISL97683IRTZ-TK maximum supply voltage is 26.5V, compared to 45V for the TPS61193PWPR. Applications requiring input voltages above 26.5V cannot use this substitute.

Q: Does package size affect electrical performance?

A: Package size does not affect electrical performance characteristics. However, different packages have different thermal dissipation properties and PCB layout requirements. The 10-MSOP-EP package of the LT3003EMSE#PBF provides reduced board area but may have different thermal management considerations compared to the 20-PowerTSSOP.

Q: Can LT3003EMSE#PBF operate at the same frequency range as TPS61193PWPR?

A: The LT3003EMSE#PBF frequency specification is not provided in the available data. Frequency compatibility must be verified against specific application requirements and datasheet specifications before selection.

Q: What is the operating temperature difference between ISL97683IRTZ-TK and TPS61193PWPR?

A: The ISL97683IRTZ-TK operates from -40°C to 85°C, while the TPS61193PWPR operates from -40°C to 125°C. Applications requiring operation above 85°C cannot use the ISL97683IRTZ-TK.