SP6201EM5-L-1-8 Linear Voltage Regulator 1.8V 200mA Equivalent & Substitute Parts

Part Overview

The SP6201EM5-L-1-8 is a linear voltage regulator IC manufactured by MaxLinear, Inc., designed to deliver a fixed 1.8V output at up to 200mA in a compact SOT-23-5 surface mount package. This positive fixed output regulator includes enable control and protection features for over-current and over-temperature conditions, operating across the industrial temperature range of -40°C to 125°C.

The SP6201EM5-L-1-8 is discontinued at DiGi Electronics. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Key Parameters

Parameter	SP6201EM5-L-1-8
Output Voltage (Fixed)	1.8V
Output Current	200mA
Input Voltage (Max)	6V
Quiescent Current (Iq)	45 µA
Package Type	SOT-23-5 (SC-74A)
Operating Temperature	-40°C to 125°C
Control Features	Enable
Protection Features	Over Current, Over Temperature
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Output voltage matching at 1.8V fixed
Output current capability equal to or greater than 200mA
SOT-23-5 package compatibility
Operating temperature range covering -40°C to 125°C
Enable control feature availability
Over-current and over-temperature protection

Substitute parts are grouped into two categories based on output current capacity: parts rated at 200mA or higher (direct substitutes) and parts rated below 200mA (application-dependent substitutes for lower current requirements).

Parameter Comparison

Part Number	Manufacturer	Output Current	Input Voltage (Max)	Iq (µA)	Operating Temp	Package	Status
SP6201EM5-L-1-8	MaxLinear, Inc.	200mA	6V	45	-40°C to 125°C	SOT-23-5	Discontinued
FAN2558S18X	onsemi	180mA	5.5V	150	-40°C to 85°C	SOT-23-5	Active
MAX8888EZK18+T	Analog Devices Inc./Maxim Integrated	300mA	5.5V	100	-40°C to 85°C	TSOT-23-5	Active
MCP1824T-1802E/OT	Microchip Technology	300mA	6V	220	-40°C to 125°C	SOT-23-5	Active
MIC5256-1.8YM5-TR	Microchip Technology	150mA	6V	150	-40°C to 125°C	SOT-23-5	Active
RT9167-18GB	Richtek USA Inc.	300mA	7V	150	-40°C to 125°C	SOT-23-5	Active
TC1054-1.8VCT713	Microchip Technology	50mA	6.5V	80	-40°C to 125°C	SOT-23-5	Active
TC1055-1.8VCT713	Microchip Technology	100mA	6.5V	80	-40°C to 125°C	SOT-23-5	Active
TC1186-1.8VCT713	Microchip Technology	150mA	6.5V	80	-40°C to 125°C	SOT-23-5	Active

Engineering Selection Recommendations

For applications requiring the full 200mA output current of the SP6201EM5-L-1-8, the following active parts provide direct substitution:

MCP1824T-1802E/OT and RT9167-18GB both deliver 300mA output current, matching the original 6V maximum input voltage specification and maintaining the -40°C to 125°C operating temperature range. Both parts are ROHS3 compliant and carry active product status.

MAX8888EZK18+T provides 300mA output current with active status and ROHS3 compliance. This part operates to 85°C maximum, which may limit use in applications requiring the full industrial temperature range.

For applications with reduced current requirements below 200mA, TC1186-1.8VCT713 (150mA), TC1055-1.8VCT713 (100mA), and TC1054-1.8VCT713 (50mA) are available as active Microchip Technology parts with full -40°C to 125°C temperature coverage and ROHS3 compliance.

FAN2558S18X provides 180mA output current but operates only to 85°C maximum temperature and has reduced maximum input voltage of 5.5V compared to the original 6V specification.

Frequently Asked Questions (FAQ)

Q: Can FAN2558S18X replace SP6201EM5-L-1-8 in all applications?

A: FAN2558S18X is suitable only for applications where the maximum operating temperature does not exceed 85°C and input voltage remains below 5.5V. The original part supports 6V input and 125°C operation. Output current is 180mA versus the original 200mA.

Q: What is the difference between SOT-23-5 and TSOT-23-5 packages?

A: Both are physically compatible five-pin surface mount packages with identical pinouts. TSOT-23-5 is a thin variant. Mechanical compatibility is maintained, but thermal characteristics may differ slightly. Consult PCB layout requirements for thermal performance validation.

Q: Which substitute provides the closest electrical match to SP6201EM5-L-1-8?

A: MCP1824T-1802E/OT matches the original 6V maximum input voltage and -40°C to 125°C operating range while providing 300mA output current. RT9167-18GB extends input voltage to 7V and also covers the full temperature range with 300mA output.

Q: Are all substitute parts RoHS compliant?

A: All listed substitute parts carry ROHS3 compliance status. The original SP6201EM5-L-1-8 is RoHS Compliant. Compliance certifications are maintained across all active alternatives.

Q: Can I use a lower current rated part if my application draws less than 200mA?

A: Yes. TC1186-1.8VCT713 (150mA), TC1055-1.8VCT713 (100mA), and TC1054-1.8VCT713 (50mA) are suitable for applications with correspondingly lower current requirements. Verify that your actual load current does not exceed the selected part's rated output current.

Q: What is the moisture sensitivity level for substitute parts?

A: All substitute parts listed carry MSL 1 (Unlimited) or MSL 3 (168 Hours) ratings. RT9167-18GB carries MSL 3. Verify storage and handling requirements for your specific manufacturing process.

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