Is there a pin-compatible replacement for LT1761ES5-5#TRPBF?

No direct pin-compatible replacement was identified in this review. Candidates like MIC5219-5.0YM5-TR have different pin assignments, requiring a board redesign.

What risks should I check before replacing LT1761ES5-5#TRPBF?

Key risks include pinout incompatibility, which requires a PCB redesign, and differences in output type (fixed vs. adjustable), which require adding external components. Always verify the pinout and dynamic performance from datasheets.

LT1761ES5-5#TRPBF Alternatives, Datasheet & Cross Reference | Analog Technologies, Inc.

Finding a substitute for the LT1761ES5-5#TRPBF 5V LDO involves checking pin compatibility and output type. While several parts offer similar electrical specs, direct drop-in replacements are rare and often require circuit modifications.

AI replacement insight

Electrical risklow

Key parameters are similar or better.

Package riskhigh

Pinouts are not compatible, requiring board changes.

Firmware risklow

Not applicable for this component type.

Can it be replaced directly?

There are no direct, drop-in replacements for the LT1761ES5-5#TRPBF found in this analysis. All viable alternatives require design modification.

Best replacement path

Use MIC5219-5.0YM5-TR for a new PCB revision if higher current is beneficial, or use LT1761ES5-BYP#TRPBF with minor circuit changes.

Main risk

The primary risk is pinout incompatibility, which prevents a simple drop-in replacement and necessitates a PCB redesign.

Recommended alternatives

Functional alternative with 5V output and higher 500mA current; requires board redesign due to different pinout.

View details

Alternative comparison matrix

Feature / factor	LT1761ES5-5#TRPBF	MIC5219-5.0YM5-TR	LT1761ES5-BYP#TRPBF	Compatibility / risk
Output Voltage V	5.0V	5.0V	-	5.0V — Output voltage matches.
Output Current A	0.1A	0.5A	100mA	0.5A / 100mA — Candidate offers significantly higher output current.; LT1761ES5-BYP#TRPBF: Output current matches.
Package	SOT-5	SOT-23-5	SOT-5	SOT-23-5 / SOT-5 — Packages are similar but pinouts are not compatible.; LT1761ES5-BYP#TRPBF: Package is a direct match.
Pinout	GND,SHDN,IN,BYP,OUT	IN,GND,EN,NC,OUT	Pin 4 = ADJ	IN,GND,EN,NC,OUT / Pin 4 = ADJ — Pin functions do not align; requires PCB redesign.; LT1761ES5-BYP#TRPBF: Pin 4 is ADJ (feedback) vs BYP, requires circuit change.
Topology	Fixed	-	Adjustable	Adjustable — Candidate is adjustable, target is fixed. Requires external resistors.

Application & sourcing insights

Questions & answers

The best alternative depends on your ability to modify the PCB. MIC5219-5.0YM5-TR offers higher current but has a different pinout. LT1761ES5-BYP#TRPBF is an adjustable version from the same family that requires adding external resistors.