SC4215HSETRT Equivalent & Substitute Parts

Part Overview

The SC4215HSETRT is a linear voltage regulator IC from Semtech Corporation designed for positive adjustable output applications. This Surface Mount device delivers 2A output current in an 8-SOIC package with exposed pad and is classified as Not For New Designs. Due to its discontinued design status, identifying functionally equivalent alternatives is essential for ongoing production support, maintenance applications, and design flexibility.

Key Parameters

Parameter	Value
Manufacturer Part Number	SC4215HSETRT
Manufacturer	Semtech Corporation
Category	Power Management (PMIC)
Output Configuration	Positive
Output Type	Adjustable (Fixed)
Current - Output	2A
Voltage - Input (Max)	6V
Voltage - Output (Min/Fixed)	0.5V
Voltage - Output (Max)	5.5V
Voltage Dropout (Max)	0.4V @ 2A
Operating Temperature	-40°C ~ 125°C
Package / Case	8-SOIC (0.154", 3.90mm Width) Exposed Pad
Mounting Type	Surface Mount
Protection Features	Over Current, Over Temperature, Reverse Polarity
RoHS Status	ROHS3 Compliant
Product Status	Not For New Designs

Substitute Part Grouping Explanation

Substitute parts for the SC4215HSETRT are selected based on strict alignment with the following critical parameters:

Output current capability: 2A minimum
Output configuration: Positive adjustable
Maximum input voltage: 6V or greater
Package compatibility: 8-SOIC with exposed pad
Surface mount technology
Operating temperature range: -40°C minimum to 85°C or higher
Protection features: Over current and over temperature protection
RoHS3 compliance

The identified substitutes—RT2515AGSP and RT9048GSP—both meet these core electrical and mechanical requirements, enabling direct functional replacement in existing designs while offering active product status and continued manufacturer support.

Parameter Comparison

Parameter	SC4215HSETRT	RT2515AGSP	RT9048GSP
Manufacturer	Semtech Corporation	Richtek USA Inc.	Richtek USA Inc.
Output Configuration	Positive	Positive	Positive
Output Type	Adjustable (Fixed)	Adjustable	Adjustable
Current - Output	2A	2A	2A
Voltage - Input (Max)	6V	6V	6V
Voltage - Output (Min/Fixed)	0.5V	0.5V	0.5V
Voltage - Output (Max)	5.5V	3.8V	5.4V
Voltage Dropout (Max)	0.4V @ 2A	0.6V @ 2A	0.6V @ 2A
Current - Quiescent (Iq)	50 µA	1.5 mA	0.7 mA
Operating Temperature	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	8-SOIC (0.154", 3.90mm Width) Exposed Pad	8-SOIC (0.154", 3.90mm Width) Exposed Pad	8-SOIC (0.154", 3.90mm Width) Exposed Pad
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Protection Features	Over Current, Over Temperature, Reverse Polarity	Over Current, Over Temperature	Over Current, Over Temperature
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Not For New Designs	Active	Active

Engineering Selection Recommendations

Both RT2515AGSP and RT9048GSP are active products from Richtek USA Inc. with full RoHS3 compliance, providing long-term availability and manufacturer support compared to the SC4215HSETRT's discontinued status.

RT9048GSP is the preferred substitute when maximum output voltage range is required, supporting up to 5.4V output and offering lower quiescent current (0.7 mA) for improved efficiency in battery-powered or low-power applications.

RT2515AGSP is suitable for applications with output voltage requirements up to 3.8V, with the trade-off of higher quiescent current (1.5 mA). This part remains a valid alternative for designs operating within its specified voltage range.

Both substitutes exhibit slightly higher dropout voltage (0.6V @ 2A versus 0.4V @ 2A) and reduced maximum operating temperature (85°C versus 125°C) compared to the original SC4215HSETRT. Applications requiring the original part's extended temperature range or lower dropout performance require design evaluation.

Frequently Asked Questions (FAQ)

Q: Can RT2515AGSP and RT9048GSP be used interchangeably with SC4215HSETRT?

A: Both parts share identical output current (2A), input voltage limits (6V max), package geometry (8-SOIC exposed pad), and core protection features. Interchangeability depends on specific application requirements for output voltage range and operating temperature. RT9048GSP accommodates the full 5.5V output range of the original part, while RT2515AGSP is limited to 3.8V maximum output.

Q: What are the key differences between the two substitute parts?

A: RT9048GSP provides superior output voltage range (5.4V max) and lower quiescent current (0.7 mA), making it the closer functional match to SC4215HSETRT. RT2515AGSP has a lower maximum output voltage (3.8V) and higher quiescent current (1.5 mA), suitable only for applications within its voltage specification.

Q: Are there thermal or reliability concerns when substituting?

A: Both substitutes operate to 85°C maximum, compared to SC4215HSETRT's 125°C rating. Applications requiring sustained operation above 85°C require thermal analysis and potential design modification. Dropout voltage is 0.6V for both substitutes versus 0.4V for the original, affecting minimum input voltage requirements in low-voltage applications.

Q: Do the substitute parts require PCB layout changes?

A: No. Both RT2515AGSP and RT9048GSP use identical 8-SOIC package geometry with exposed pad, enabling direct PCB footprint compatibility without layout modification.

Q: What is the availability status of these substitute parts?

A: RT9048GSP has the highest inventory (42,700 pcs), followed by RT2515AGSP (1,329 pcs). Both are active products with ongoing manufacturer support, contrasting with SC4215HSETRT's discontinued status.

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