MIC5219-5.0BM5-TR Equivalent & Substitute Parts

Part Overview

The MIC5219-5.0BM5-TR is a linear voltage regulator IC from Microchip Technology designed for positive fixed 5V output at 500mA in a SOT-23-5 surface mount package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent alternatives that maintain functional and electrical compatibility for new designs or production continuity.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	5V
Output Current	500mA
Input Voltage (Max)	12V
Voltage Dropout (Max)	0.6V @ 500mA
Quiescent Current	8 µA
Package	SOT-23-5 (SC-74A)
Operating Temperature Range	-40°C to 125°C
Protection Features	Over Current, Over Temperature, Reverse Polarity

Substitute Part Grouping Explanation

Substitution eligibility is determined by matching the following critical parameters: fixed 5V output voltage, 500mA output current capability, SOT-23-5 package, -40°C to 125°C operating temperature range, and integrated protection features (over current, over temperature, reverse polarity). All identified substitutes meet these core requirements.

Parametric equivalents maintain identical electrical specifications and are direct pin-compatible replacements. The manufacturer-recommended substitute offers slightly different input voltage tolerance and dropout characteristics but remains functionally compatible within the specified operating envelope.

Parameter Comparison

Parameter	MIC5219-5.0BM5-TR	MIC5219-5.0YM5-TR	MIC5216-5.0YM5-TR	SPX3819M5-L-5-0/TR
Manufacturer	Microchip Technology	Microchip Technology	Microchip Technology	MaxLinear, Inc.
Output Voltage	5V	5V	5V	5V
Output Current	500mA	500mA	500mA	500mA
Input Voltage (Max)	12V	12V	12V	16V
Voltage Dropout (Max)	0.6V @ 500mA	0.6V @ 500mA	0.6V @ 500mA	0.7V @ 500mA
Quiescent Current	8 µA	8 µA	3 µA	8 µA
Package	SOT-23-5	SOT-23-5	SOT-23-5	SOT-23-5
Operating Temperature	-40°C to 125°C	-40°C to 125°C	-40°C to 125°C	-40°C to 125°C
Protection Features	OCP, OTP, Reverse Polarity	OCP, OTP, Reverse Polarity	OCP, OTP, Reverse Polarity	OCP, OTP, Reverse Polarity
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Discontinued	Active	Active	Active

Engineering Selection Recommendations

MIC5219-5.0YM5-TR is the primary parametric equivalent, offering identical electrical performance with active product status and ROHS3 compliance. This part is recommended for designs requiring direct specification continuity.

MIC5216-5.0YM5-TR provides the lowest quiescent current (3 µA versus 8 µA), beneficial for battery-powered or low-power standby applications. Electrical performance remains equivalent across all critical parameters.

SPX3819M5-L-5-0/TR from MaxLinear is the manufacturer-recommended alternative, supporting higher input voltage (16V maximum) and offering the highest inventory availability. The 0.1V higher dropout specification (0.7V versus 0.6V) is acceptable for applications with adequate input voltage margin.

All three substitutes are ROHS3 compliant and carry active product status, ensuring long-term supply chain viability compared to the discontinued original part.

Frequently Asked Questions (FAQ)

Q: Can MIC5219-5.0YM5-TR directly replace MIC5219-5.0BM5-TR?

A: Yes. Both parts are identical in electrical specification and package. The difference is packaging format (Cut Tape & Digi-Reel versus Tape & Reel) and product status (Active versus Discontinued). Pin configuration and functional performance are equivalent.

Q: What is the difference between MIC5219 and MIC5216?

A: The MIC5216 has lower quiescent current (3 µA) compared to MIC5219 (8 µA). All other electrical parameters, including output voltage, current, dropout, and protection features, are identical. Both are pin-compatible in SOT-23-5 packages.

Q: Can SPX3819M5-L-5-0/TR be used in place of MIC5219-5.0BM5-TR?

A: Yes, with consideration for input voltage and dropout specifications. SPX3819M5-L-5-0/TR supports 16V maximum input (versus 12V) and has 0.7V dropout (versus 0.6V). For applications operating within 12V input and requiring 0.6V dropout performance, verify that the additional 0.1V dropout does not violate system requirements.

Q: Are all substitutes pin-compatible?

A: Yes. All listed parts use SOT-23-5 (SC-74A) packaging with identical pin assignments for linear regulator functionality.

Q: What is the impact of RoHS compliance on substitution?

A: The original MIC5219-5.0BM5-TR is RoHS non-compliant. All active substitutes are ROHS3 compliant, meeting current environmental and regulatory requirements for new designs and production.

Q: Which substitute offers the best availability?

A: SPX3819M5-L-5-0/TR has the highest inventory (65,300 pcs), followed by MIC5219-5.0YM5-TR (20,100 pcs) and MIC5216-5.0YM5-TR (3,200 pcs).

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