Is there a pin-compatible replacement for HFP6291LR-G1?

LN2220PAR is a potential pin-compatible replacement as it shares the same package and key electrical specs, but pin-for-pin compatibility has not been confirmed and requires datasheet review.

What risks should I check before replacing HFP6291LR-G1?

Key risks include pinout mismatch, which could damage the circuit, and subtle differences in control logic (e.g., PWM vs. PWM/PFM modes) that may affect efficiency and transient response in your specific application.

HFP6291LR-G1 Alternatives, Datasheet & Cross Reference | HXY MOSFET

HFP6291LR-G1 is a versatile SOT-23-6L boost converter with a wide 2-24V input range. Finding a direct replacement requires matching key parameters and verifying the pinout.

AI replacement insight

Package risklow

Package SOT-23-6L is a match.

Electrical riskmedium

Pinout is unknown. Control mode differs slightly (PWM/PFM).

Can it be replaced directly?

No direct, verified pin-to-pin replacement has been identified. LN2220PAR is a strong candidate requiring engineering review.

Best replacement path

LN2220PAR is the most promising candidate, but requires pinout verification before use.

Main risk

The primary risk is pinout incompatibility, which could lead to circuit failure if not verified.

Recommended alternatives

A functional alternative with matching key electrical ratings; pinout requires datasheet verification.

View details

Alternative comparison matrix

Feature / factor	HFP6291LR-G1	LN2220PAR	Compatibility / risk
Package	SOT-23-6L	SOT-23-6L	SOT-23-6L — Package matches.
Voltage	2 V to 24 V	2V - 24V	2V - 24V — Input voltage range matches.
Current	4 A	4 A	4 A — Switch current limit matches.
Frequency	1.2 MHz	1.2 MHz	1.2 MHz — Switching frequency matches.
Pinout	See Datasheet	Unknown	Unknown — Pinout must be verified from datasheet.

Application & sourcing insights

Questions & answers

LN2220PAR from natlinear is a strong functional alternative with nearly identical voltage, current, and frequency ratings. However, its pinout must be verified from the datasheet to confirm compatibility.