SP6205EM5-L-3-0 Equivalent & Substitute Parts

Part Overview

The SP6205EM5-L-3-0 is a linear voltage regulator IC from MaxLinear, Inc., delivering a fixed 3V output at 500mA in a SOT-23-5 surface mount package. This positive fixed output regulator features enable control, over-current protection, and over-temperature protection across an operating range of -40°C to 125°C. The part is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	3V
Output Current	500mA
Input Voltage (Max)	5.5V
Dropout Voltage (Max)	0.5V @ 500mA
Quiescent Current	100 µA
PSRR	67dB (1kHz)
Control Features	Enable
Protection Features	Over Current, Over Temperature
Operating Temperature	-40°C ~ 125°C
Package	SOT-23-5 (SC-74A, SOT-753)
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution of the SP6205EM5-L-3-0 is determined by the following critical parameters:

Fixed output voltage of 3V
Output current capability of 500mA or higher
Maximum input voltage of 5.5V
Surface mount SOT-23-5 package compatibility
Enable control feature
Over-current and over-temperature protection
Operating temperature range of -40°C to 125°C

Substitute parts are grouped into two categories based on output current capacity:

Full-Capacity Substitutes (500mA): Parts meeting or exceeding the 500mA output current specification with identical package and voltage parameters.

Reduced-Capacity Substitutes (150mA–300mA): Parts with lower output current ratings suitable for applications requiring less than 500mA, maintaining all other electrical and mechanical compatibility criteria.

Parameter Comparison

Part Number	Manufacturer	Output Voltage	Output Current	Input Voltage (Max)	Dropout Voltage (Max)	Quiescent Current	PSRR	Package	Product Status
SP6205EM5-L-3-0	MaxLinear, Inc.	3V	500mA	5.5V	0.5V @ 500mA	100 µA	67dB (1kHz)	SOT-23-5	Discontinued
MIC5319-3.0YD5-TR	Microchip Technology	3V	500mA	5.5V	0.4V @ 500mA	150 µA	70dB ~ 60dB (1kHz ~ 10kHz)	SOT-23-5	Active
RT9020-30GB	Richtek USA Inc.	3V	500mA	5.5V	0.4V @ 500mA	50 µA	55dB (10kHz)	SOT-23-5	Active
RT9193-30GB	Richtek USA Inc.	3V	300mA	5.5V	0.3V @ 300mA	130 µA	70dB ~ 50dB (100Hz ~ 10kHz)	SOT-23-5	Active
LDK120M30R	STMicroelectronics	3V	200mA	5.5V	0.3V @ 200mA	60 µA	55dB (120Hz ~ 10kHz)	SOT-23-5	Active
ADP1712AUJZ-3.0-R7	Analog Devices Inc.	3V	300mA	5.5V	0.27V @ 300mA	70 µA	65dB (1kHz)	SOT-23-5	Active
ADP1713AUJZ-3.0-R7	Analog Devices Inc.	3V	300mA	5.5V	0.27V @ 300mA	70 µA	72dB (1kHz)	SOT-23-5	Active
ADP1710AUJZ-3.0-R7	Analog Devices Inc.	3V	150mA	5.5V	0.3V @ 150mA	50 µA	58dB (1kHz)	SOT-23-5	Active
AP7115-30WG-7	Diodes Incorporated	3V	150mA	5.5V	0.3V @ 150mA	80 µA	70dB (1kHz)	SOT-23-5	Active
MIC5255-3.0YD5-TR	Microchip Technology	3V	150mA	6V	0.25V @ 150mA	150 µA	60dB ~ 50dB (10Hz ~ 10kHz)	SOT-23-5	Active
MIC5305-3.0YD5-TR	Microchip Technology	3V	150mA	5.5V	0.85V @ 150mA	150 µA	85dB ~ 65dB (1kHz ~ 10kHz)	SOT-23-5	Active

Engineering Selection Recommendations

Direct Replacement (500mA Output Current):

MIC5319-3.0YD5-TR and RT9020-30GB are the primary direct replacements for the SP6205EM5-L-3-0. Both deliver 500mA output current in SOT-23-5 packages with 3V fixed output and 5.5V maximum input voltage. MIC5319-3.0YD5-TR is currently active with high inventory availability. RT9020-30GB is also active but has lower inventory levels. Both parts include enable control and over-current/over-temperature protection across the -40°C to 125°C operating range.

Alternative Substitutes (300mA Output Current):

RT9193-30GB, ADP1712AUJZ-3.0-R7, and ADP1713AUJZ-3.0-R7 provide 300mA output current and are suitable for applications requiring less than 500mA. All three maintain SOT-23-5 packaging, 3V output, and 5.5V maximum input voltage. ADP1712AUJZ-3.0-R7 and ADP1713AUJZ-3.0-R7 feature soft start and under-voltage lockout protection in addition to standard over-current and over-temperature protection. RT9193-30GB offers superior PSRR performance across the 100Hz to 10kHz range.

Reduced-Current Substitutes (150mA–200mA Output Current):

ADP1710AUJZ-3.0-R7, AP7115-30WG-7, MIC5255-3.0YD5-TR, MIC5305-3.0YD5-TR, and LDK120M30R are suitable for applications with output current requirements below 200mA. All maintain SOT-23-5 packaging and 3V fixed output. MIC5305-3.0YD5-TR offers the highest PSRR performance (85dB ~ 65dB) but exhibits higher dropout voltage (0.85V @ 150mA). MIC5255-3.0YD5-TR supports a maximum input voltage of 6V, providing additional headroom compared to the 5.5V specification of other parts.

Compliance and Product Status:

All substitute parts listed are RoHS3 compliant and currently active in production. The SP6205EM5-L-3-0 is discontinued at DiGi Electronics, making active substitutes necessary for new designs and ongoing production support.

Frequently Asked Questions (FAQ)

Q: Can MIC5319-3.0YD5-TR directly replace the SP6205EM5-L-3-0 without circuit modifications?

A: Yes. MIC5319-3.0YD5-TR matches the SP6205EM5-L-3-0 in output voltage (3V), output current (500mA), input voltage rating (5.5V maximum), package (SOT-23-5), and control features (enable). Both parts include over-current and over-temperature protection. The dropout voltage is slightly lower (0.4V vs. 0.5V @ 500mA), which is advantageous. No circuit modifications are required.

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

A: TSOT-23-5 is a thin variant of the SOT-23-5 package. Both are mechanically and electrically compatible for PCB assembly. The primary difference is package height; TSOT-23-5 is thinner. Footprints are identical, and parts are interchangeable on the same PCB layout.

Q: Can I use RT9193-30GB (300mA) instead of the SP6205EM5-L-3-0 (500mA)?

A: RT9193-30GB is suitable only if your application requires 300mA or less output current. If your circuit draws more than 300mA, the regulator will enter current-limit protection. Verify your actual load current before substitution.

Q: Which substitute offers the best noise performance?

A: MIC5305-3.0YD5-TR provides the highest PSRR (85dB ~ 65dB across 1kHz ~ 10kHz range). ADP1713AUJZ-3.0-R7 offers 72dB PSRR at 1kHz. For applications requiring superior power supply rejection, these parts are preferred over the original SP6205EM5-L-3-0 (67dB @ 1kHz).

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed are RoHS3 compliant. The original SP6205EM5-L-3-0 is RoHS compliant. Compliance status is maintained across all recommended substitutes.

Q: What is the operating temperature range for substitute parts?

A: Most substitute parts operate across -40°C to 125°C, matching the original SP6205EM5-L-3-0. RT9020-30GB and AP7115-30WG-7 operate across -40°C to 85°C, which is a narrower range. Verify temperature requirements for your application before selecting these alternatives.

Q: Can I use MIC5255-3.0YD5-TR if my input voltage exceeds 5.5V?

A: MIC5255-3.0YD5-TR supports a maximum input voltage of 6V, compared to 5.5V for most other substitutes. If your input voltage is between 5.5V and 6V, MIC5255-3.0YD5-TR is the appropriate choice. All other substitutes are limited to 5.5V maximum input.

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