TPS61202DSCT Equivalent & Substitute Parts

Part Overview

The TPS61202DSCT is a boost switching regulator IC manufactured by Texas Instruments, designed for power management applications requiring step-up voltage conversion. This device delivers a fixed 5V output at 1.2A from input voltages ranging from 0.3V to 5.5V, utilizing a synchronous rectifier topology with a switching frequency of 1.25MHz to 1.65MHz. The part is currently in Last Time Buy status, making identification of equivalent and substitute components essential for ongoing design support and production continuity.

Substiute Parts

TPS61202DSCT

Texas InstrumentsIn Stock: 1368TPS61202DSCT Datasheet

Current PartRFQ

TLV61070ADBVR

Texas InstrumentsIn Stock: 349831TLV61070ADBVR Datasheet

MFR RecommendedRFQ

TPS61023DRLR

Texas InstrumentsIn Stock: 10316TPS61023DRLR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPS61202DSCT is determined by the following critical parameters: boost topology with synchronous rectification, input voltage compatibility (0.3V to 5.5V minimum range), output voltage capability (5V fixed or adjustable to 5.5V), output current capacity (minimum 1.2A), and surface mount packaging. The substitute parts identified maintain these core functional requirements while offering variations in output configuration (adjustable versus fixed), current capacity, and package form factor.

The two substitute parts listed—TLV61070ADBVR and TPS61023DRLR—both provide boost regulation with synchronous rectification and compatible input voltage ranges. However, both substitute parts feature adjustable output voltage rather than fixed 5V output, requiring external resistor networks for voltage configuration. Both substitutes exceed the 1.2A current requirement of the original part and operate across extended temperature ranges.

Parameter Comparison

Engineering Selection Recommendations

The TPS61202DSCT is designated Last Time Buy status, necessitating transition to active production parts. Both substitute options—TLV61070ADBVR and TPS61023DRLR—are active products from Texas Instruments with ROHS3 compliance and improved moisture sensitivity ratings (MSL 1 versus MSL 2).

TLV61070ADBVR provides a compact SOT-23-6 package suitable for space-constrained applications, with 2.5A output capacity and dual switching frequency options (550kHz and 1MHz). This part is recommended for designs where package size is a primary constraint and output current requirements do not exceed 2.5A.

TPS61023DRLR offers the highest output current capacity at 3A with a single 1MHz switching frequency, available in SOT-563 or SOT-666 packages. This part is recommended for applications requiring maximum current headroom or where the SOT-563 package footprint is preferred.

Both substitutes require external resistor divider networks to configure the adjustable output voltage to 5V, adding design complexity compared to the fixed-output TPS61202DSCT. Both substitutes support extended operating temperature ranges (-40°C to 125°C junction temperature) compared to the original part's -40°C to 85°C ambient specification.

Frequently Asked Questions (FAQ)

Q: Can TLV61070ADBVR or TPS61023DRLR directly replace TPS61202DSCT without circuit modifications?

A: No. The substitute parts feature adjustable output voltage rather than fixed 5V output. Direct replacement requires external resistor divider networks to configure the output voltage to 5V. The original TPS61202DSCT requires no external voltage-setting resistors.

Q: What is the minimum input voltage difference between the main part and substitutes?

A: The TPS61202DSCT operates from 0.3V minimum input, while both substitutes operate from 0.5V minimum input. Applications requiring operation below 0.5V input voltage cannot use the substitute parts.

Q: How do package differences affect PCB layout?

A: The TPS61202DSCT uses a 10-WFDFN package (3x3mm). TLV61070ADBVR uses SOT-23-6 (smaller footprint, 6 pins). TPS61023DRLR uses SOT-563 or SOT-666 (smallest footprint, 6 pins). Substitution requires PCB redesign and re-qualification of thermal performance.

Q: Are there switching frequency implications for EMI performance?

A: The TPS61202DSCT operates at 1.25MHz to 1.65MHz. TLV61070ADBVR offers 550kHz or 1MHz operation. TPS61023DRLR operates at 1MHz fixed. Lower switching frequencies may reduce EMI but increase inductor and capacitor sizes. Higher frequencies reduce component sizes but may increase EMI.

Q: What is the impact of MSL rating differences?

A: TPS61202DSCT has MSL 2 (1 Year shelf life). Both substitutes have MSL 1 (Unlimited shelf life). This provides improved handling flexibility and extended storage capability for substitute parts.

Q: Do the substitutes support the same operating temperature range?

A: No. TPS61202DSCT operates to 85°C ambient (TA). Both substitutes operate to 125°C junction temperature (TJ), which typically corresponds to higher ambient capability. Substitutes provide extended thermal operating range.