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SP6203EM5-L Equivalent & Substitute Parts
Part Overview
The SP6203EM5-L is a linear voltage regulator IC from MaxLinear, Inc., designed for positive adjustable output applications with 300mA current capacity in a SOT-23-5 surface mount package. This device is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and production continuity. The SP6203EM5-L operates across a wide input voltage range up to 5.5V with adjustable output from 1.25V to 5.2V, featuring integrated over-current and over-temperature protection suitable for low-power regulation circuits.
Substiute Parts
Key Parameters
| Parameter | SP6203EM5-L |
|---|---|
| Manufacturer | MaxLinear, Inc. |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | 1.25V |
| Voltage - Output (Max) | 5.2V |
| Current - Output | 300mA |
| Voltage Dropout (Max) | 0.3V @ 300mA |
| Operating Temperature | -40°C ~ 125°C |
| Package / Case | SOT-23-5 |
| Mounting Type | Surface Mount |
| Protection Features | Over Current, Over Temperature |
| RoHS Status | RoHS Compliant |
| Product Status | Discontinued at DiGi Electronics |
Substitute Part Grouping Explanation
Substitution for the SP6203EM5-L is determined by the following critical parameters:
- Output Configuration & Type: Positive adjustable output
- Current Capacity: 300mA nominal output current
- Input Voltage Range: Maximum 5.5V
- Output Voltage Range: Adjustable from minimum 1.25V to maximum 5.2V
- Package: SOT-23-5 surface mount
- Protection: Over-current and over-temperature protection
- Operating Temperature: -40°C to 125°C
Substitute parts are grouped into two categories based on output current capability:
Category A - Full Current Match (300mA): ADP1712AUJZ-R7, TPS73201DBVR, TPS73201DBVT, TPS73201MDBVREP, TPS73201QDBVRQ1
Category B - Reduced Current (150mA-250mA): ADP1710AUJZ-R7, MIC5301YD5-TR, TPS73101DBVR, TPS73101DBVT, TPS73101MDBVREP, TPS73201DBVR, TPS73201DBVT
Parameter Comparison
| Part Number | Manufacturer | Output Current | Voltage - Input (Max) | Voltage - Output (Min) | Voltage - Output (Max) | Voltage Dropout (Max) | Package | Product Status | Operating Temp |
|---|---|---|---|---|---|---|---|---|---|
| SP6203EM5-L | MaxLinear, Inc. | 300mA | 5.5V | 1.25V | 5.2V | 0.3V @ 300mA | SOT-23-5 | Discontinued | -40°C ~ 125°C |
| ADP1710AUJZ-R7 | Analog Devices Inc. | 150mA | 5.5V | 0.8V | 5V | 0.25V @ 150mA | TSOT-23-5 | Active | -40°C ~ 125°C |
| ADP1712AUJZ-R7 | Analog Devices Inc. | 300mA | 5.5V | 0.8V | 5V | 0.27V @ 300mA | TSOT-23-5 | Active | -40°C ~ 125°C |
| MIC5301YD5-TR | Microchip Technology | 150mA | 5.5V | 1.25V | 5.5V | 0.1V @ 150mA | TSOT-23-5 | Active | -40°C ~ 125°C |
| TPS73101DBVR | Texas Instruments | 150mA | 5.5V | 1.2V | 5.5V | 0.1V @ 150mA | SOT-23-5 | Active | -40°C ~ 125°C |
| TPS73101DBVT | Texas Instruments | 150mA | 5.5V | 1.2V | 5.5V | 0.1V @ 150mA | SOT-23-5 | Active | -40°C ~ 125°C |
| TPS73101MDBVREP | Texas Instruments | 150mA | 5.5V | 1.2V | 5.5V | 0.1V @ 150mA | SOT-23-5 | Active | -55°C ~ 125°C |
| TPS73201DBVR | Texas Instruments | 250mA | 5.5V | 1.2V | 5.5V | 0.15V @ 250mA | SOT-23-5 | Active | -40°C ~ 125°C |
| TPS73201DBVT | Texas Instruments | 250mA | 5.5V | 1.2V | 5.5V | 0.15V @ 250mA | SOT-23-5 | Active | -40°C ~ 125°C |
| TPS73201MDBVREP | Texas Instruments | 250mA | 5.5V | 1.2V | 5.5V | 0.15V @ 250mA | SOT-23-5 | Active | -55°C ~ 125°C |
| TPS73201QDBVRQ1 | Texas Instruments | 250mA | 5.5V | 1.2V | 5.5V | 0.15V @ 250mA | SOT-23-5 | Active | -40°C ~ 125°C |
Engineering Selection Recommendations
Primary Substitutes (Full Current Capability)
For applications requiring the full 300mA output current of the SP6203EM5-L, the ADP1712AUJZ-R7 and TPS73201 series parts provide direct functional equivalence. The ADP1712AUJZ-R7 from Analog Devices is actively produced with ROHS3 compliance and identical 300mA output current. The TPS73201 series from Texas Instruments offers multiple packaging options (DBVR, DBVT, MDBVREP, QDBVRQ1) with 250mA output current, suitable for applications where 250mA meets design requirements. The TPS73201QDBVRQ1 variant includes automotive-grade qualification (AEC-Q100) for regulated applications.
Secondary Substitutes (Reduced Current Capability)
For applications tolerating reduced output current, the TPS73101 series (150mA) and ADP1710AUJZ-R7 (150mA) provide active alternatives with improved dropout voltage performance. The MIC5301YD5-TR from Microchip Technology matches the original 1.25V minimum output voltage specification and offers superior dropout characteristics at 0.1V @ 150mA.
Compliance & Availability
All substitute parts maintain RoHS3 compliance and operate across the -40°C to 125°C temperature range. Extended temperature variants (MDBVREP suffix) support -55°C to 125°C operation. Current inventory levels are highest for TPS73201DBVT (485,781 pcs) and ADP1712AUJZ-R7 (27,300 pcs), ensuring supply continuity.
Frequently Asked Questions (FAQ)
Q: Can the TPS73101 series (150mA) directly replace the SP6203EM5-L (300mA)?
A: The TPS73101 series provides functional substitution only for applications requiring 150mA or less output current. If your circuit draws more than 150mA, the TPS73101 will not meet performance requirements. For full 300mA capability, use ADP1712AUJZ-R7 or TPS73201 series parts.
Q: What is the difference between TPS73201DBVR, TPS73201DBVT, and TPS73201MDBVREP?
A: These are packaging variants of the same TPS73201 base part. DBVR and DBVT are cut tape options with -40°C to 125°C operating range. MDBVREP is tape & reel packaging with extended -55°C to 125°C temperature range. Electrical performance is identical; selection depends on packaging requirements and temperature specifications.
Q: Is the ADP1712AUJZ-R7 pin-compatible with the SP6203EM5-L?
A: Both parts use SOT-23-5 (or TSOT-23-5 for ADP1712) surface mount packages. Pin compatibility requires verification against specific pinout diagrams, as package designation alone does not guarantee identical pin assignments.
Q: Why does the MIC5301YD5-TR have lower dropout voltage (0.1V) compared to the SP6203EM5-L (0.3V)?
A: Dropout voltage is a device-specific characteristic determined by internal circuit design. The MIC5301 achieves lower dropout through different internal architecture, which can reduce power dissipation in low-voltage applications but is limited to 150mA output current.
Q: Can I use the TPS73201QDBVRQ1 in non-automotive applications?
A: Yes. The QDBVRQ1 suffix indicates automotive-grade qualification (AEC-Q100), but the part functions identically in non-automotive circuits. It is a superset specification suitable for any application requiring the TPS73201 functionality.
Q: What output voltage range should I verify when substituting?
A: The SP6203EM5-L supports 1.25V to 5.2V adjustable output. Most substitutes support 0.8V to 5V or 1.2V to 5.5V ranges. Verify that your required output voltage falls within the substitute part's specified range. The MIC5301YD5-TR and TPS73101 series match the 1.25V minimum specification.
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