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Home Products Integrated Circuits (ICs)PMIC - Voltage Regulators - Linear~~S-812C25AUA-C2FT2U~~

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S-812C25AUA-C2FT2U - ABLIC Inc.

Name: ABLIC Inc. S-812C25AUA-C2FT2U
Brand: ABLIC Inc.
SKU: S-812C25AUA-C2FT2U
Price: 0.972 USD
Availability: InStock
Rating: 5 (3 reviews)

Manufacturer Part Number: S-812C25AUA-C2FT2U

Manufacturer: ABLIC

Allelco Part Number: 98D-S-812C25AUA-C2FT2U

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 28,665 pcs available, New & Original

Parts Description: IC REG LINEAR 2.5V 30MA SOT89-3

Package: SOT-89-3

Data sheet: S-812C25AUA-C2F.pdf

Datasheets
Cylindrical Battery Holders.pdf

PCN Design/Specification
Solder Plating Material Chg 10/Dec/2018.pdf All Dev Materials Chg 23/Mar/2020.pdf

RoHs Status: RoHS Compliant

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Specifications

S-812C25AUA-C2FT2U Tech Specifications
ABLIC Inc. - S-812C25AUA-C2FT2U technical specifications, attributes, parameters and parts with similar specifications to ABLIC Inc. - S-812C25AUA-C2FT2U

Product Attribute	Attribute Value
Manufacturer	ABLIC
Voltage Dropout (Max)	0.68V @ 10mA
Voltage - Output (Min/Fixed)	2.5V
Voltage - Output (Max)	-
Voltage - Input (Max)	16V
Supplier Device Package	SOT-89-3
Series	S-812C
Protection Features	-
Package / Case	TO-243AA
Package	Tape & Reel (TR)
PSRR	-

Product Attribute	Attribute Value
Output Type	Fixed
Output Configuration	Positive
Operating Temperature	-40°C ~ 85°C (TA)
Number of Regulators	1
Mounting Type	Surface Mount
Current - Supply (Max)	1.6 µA
Current - Quiescent (Iq)	500 nA
Current - Output	30mA
Control Features	-
Base Product Number	S-812

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
RoHs Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
ECCN	EAR99
HTSUS	8542.39.0001

Frequently Asked Questions(FAQ)

What is the maximum input voltage tolerance for the S-812C25AUA-C2FT2U linear regulator when operating within its specified temperature range?: The S-812C25AUA-C2FT2U supports a maximum input voltage of 16V under normal operating conditions from -40°C to 85°C. This specification reflects the device’s internal breakdown protection and dropout behavior, ensuring stable 2.5V output even as the input approaches this limit. Designers must ensure that transient voltages do not exceed this threshold to prevent damage, particularly in automotive or industrial environments where load dumps may occur.

How does the quiescent current of the S-812C25AUA-C2FT2U compare to other regulators in the S-812 series when used in battery-powered applications?: With a quiescent current (Iq) of 500 nA, the S-812C25AUA-C2FT2U offers significantly lower power consumption than many competing regulators, including some variants in the same S-812C family that may draw over 1 µA. In battery-operated systems such as wearables or IoT sensors, this low Iq extends operational life by minimizing standby power drain, making it preferable for energy-sensitive designs despite its modest 30mA output capability.

Can the S-812C25AUA-C2FT2U be used in space-constrained PCB layouts without compromising thermal performance?: Yes, the S-812C25AUA-C2FT2U uses the compact SOT-89-3 package, which occupies minimal board area. However, its thermal performance is limited by conduction through the small exposed pad and three leads. For continuous loads above 20 mA, adequate copper pour on the PCB and proximity to a ground plane are necessary to dissipate heat effectively. In applications with intermittent loading or low ambient temperatures, this regulator performs reliably without heatsinking.

What is the impact of input-output differential voltage on efficiency when using the S-812C25AUA-C2FT2U at light loads?: The S-812C25AUA-C2FT2U exhibits a maximum dropout voltage of 0.68 V at 10 mA, meaning that when Vin is only slightly above 2.5V—such as 3.2V—the regulator can still deliver regulated output. At light loads, however, efficiency drops due to fixed overheads like Iq (500 nA), resulting in efficiency below 70% when Vin = 3.0 V. Therefore, it is less suitable for high-efficiency step-down scenarios but remains viable where size and cost outweigh efficiency concerns.

How does the S-812C25AUA-C2FT2U differ from the S-812C25AUA-C2FT2G variant in terms of availability and manufacturing compliance?: The S-812C25AUA-C2FT2U and S-812C25AUA-C2FT2G represent minor packaging or traceability differences, likely related to reel orientation or factory lot coding, but both share identical electrical characteristics. The FT2U suffix typically indicates standard ABLIC packaging for tape-and-reel delivery, while FT2G may denote a different reel configuration or internal batch marking. Both are RoHS3 compliant and unaffected by REACH regulations, ensuring consistent environmental compliance across supply chains.

Is the S-812C25AUA-C2FT2U suitable for use in automotive-grade sensor nodes requiring stable 2.5V references?: While the S-812C25AUA-C2FT2U operates over an industrial temperature range (-40°C to 85°C), it is not rated for full automotive qualification (AEC-Q100). It can serve non-critical sensing nodes in non-automotive applications where moderate temperature exposure and vibration resistance are acceptable. However, for true automotive environments—especially those involving extended thermal cycling or EMI stress—a certified alternative should be considered.

What precautions should be taken during reflow soldering when mounting the S-812C25AUA-C2FT2U?: The S-812C25AUA-C2FT2U has an MSL rating of 1, allowing unlimited floor life before use. However, standard lead-free reflow profiles must be followed: peak junction temperature should not exceed 260°C for more than 10 seconds to avoid degradation of bond wires or die attach integrity. Proper preheating and controlled cooling help prevent warpage of the small SOT-89-3 body.

What is the significance of the 30mA output current limit in the context of typical microcontroller peripheral powering?: The S-812C25AUA-C2FT2U provides up to 30mA of output current, which is sufficient for low-power microcontrollers, GPIO banks, or ADC reference circuits but insufficient for driving motors, LEDs, or radio transceivers directly. In microcontroller-based designs, it is ideal for supplying core logic or analog subsystems, provided total branch currents remain below this threshold to avoid overheating or regulation failure.

How does the absence of built-in protection features affect circuit design when integrating the S-812C25AUA-C2FT2U?: Unlike some PMICs with overcurrent, overtemperature, or reverse-polarity protection, the S-812C25AUA-C2FT2U lacks internal safeguards. Consequently, external components such as input fuses, TVS diodes, or current-limiting resistors may be required in harsh environments. Additionally, designers must monitor junction temperature indirectly via ambient conditions and output current to prevent thermal runaway, especially in confined enclosures.

Can the S-812C25AUA-C2FT2U be paralleled to increase output current capacity?: No, paralleling the S-812C25AUA-C2FT2U is not recommended due to potential current imbalance between devices caused by slight variations in Vf or response time. Each unit regulates independently, leading to one device taking excess load while others remain underutilized. To increase current beyond 30mA, a higher-capacity linear or switching regulator should be selected instead.

What role does the S-812C25AUA-C2FT2U play in enabling low-power sleep modes in embedded systems?: Thanks to its ultra-low quiescent current of 500 nA, the S-812C25AUA-C2FT2U minimizes leakage during microcontroller sleep states. When paired with a MCU drawing microamps of active current and nanoamps in sleep, the total system power budget becomes dominated by the regulator’s own Iq—making this part advantageous for extending battery life in periodic-wakeup IoT devices.

How does the S-812C25AUA-C2FT2U perform compared to buck converters in terms of noise and ripple at 2.5V output?: As a linear regulator, the S-812C25AUA-C2FT2U inherently provides cleaner output than most switching regulators due to the absence of high-frequency switching noise. While switching converters introduce ripple and require filtering, this LDO delivers stable 2.5V with minimal noise, making it ideal for analog front-ends, precision ADCs, or RF modules sensitive to supply disturbances.

What considerations apply when selecting bypass capacitors for the S-812C25AUA-C2FT2U to ensure stability?: Although no minimum capacitance is specified in the datasheet, typical designs use a 1 µF ceramic capacitor on the input and output near the regulator pins to suppress high-frequency noise and maintain phase margin. Capacitor ESR should be low (<1 Ω) to avoid instability; X7R or X5R dielectrics work well within the –40°C to 85°C range. Avoid electrolytic types unless absolutely necessary due to higher ESR.

Is the S-812C25AUA-C2FT2U compatible with automated optical inspection (AOI) systems during assembly?: Yes, the SOT-89-3 footprint of the S-812C25AUA-C2FT2U is widely recognized and supported by most AOI systems used in SMT lines. Its symmetrical lead layout and clear markings facilitate reliable inspection, reducing defect rates during mass production. Consistent solder joint formation across batches further enhances manufacturability and yield.

How does the base product number S-812 relate to the specific model S-812C25AUA-C2FT2U in terms of functional differentiation?: The base product S-812 encompasses multiple fixed-output LDOs across varying voltage levels (e.g., 1.8V, 2.5V, 3.3V) and package options. The S-812C25AUA-C2FT2U specifically denotes a 2.5V, 30mA version in SOT-89-3 with enhanced low-Iq characteristics. Understanding this hierarchy helps engineers quickly identify compatible alternatives or future-proof designs against supply constraints.

Parts with Similar Specifications

The three parts on the right have similar specifications to ABLIC Inc. S-812C25AUA-C2FT2U

Product Attribute
Part Number	S-812C25AUA-C2FT2G	S-812C25AMC-C2FT2U	S-812C25AMC-C2FT2G	S-812C26AMC-C2GT2U
Manufacturer	ABLIC Inc.	ABLIC Inc.	ABLIC Inc.	ABLIC Inc.
Voltage - Output (Max)	-	-	-	-
Current - Supply (Max)	-	-	-	-
Current - Quiescent (Iq)	-	-	-	-
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Series	-	-	-	-
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Output Configuration	-	-	-	-
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)
Current - Output	-	-	-	-
Protection Features	-	-	-	-
Number of Regulators	-	-	-	-
PSRR	-	-	-	-
Base Product Number	-	DAC34H84	MAX500	ADS62P42
Output Type	-	Current - Unbuffered	Voltage - Buffered	-
Voltage Dropout (Max)	-	-	-	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Voltage - Output (Min/Fixed)	-	-	-	-
Control Features	-	-	-	-
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Voltage - Input (Max)	-	-	-	-

S-812C25AUA-C2FT2U Datasheet PDF

Download S-812C25AUA-C2FT2U pdf datasheets and ABLIC Inc. documentation for S-812C25AUA-C2FT2U - ABLIC Inc..

Datasheets: Cylindrical Battery Holders.pdf
PCN Design/Specification: Solder Plating Material Chg 10/Dec/2018.pdf All Dev Materials Chg 23/Mar/2020.pdf

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Region	Country	Logistic Time(Day)
America	United States	5
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	Japan	4
Middle East	Israel	6

DHL & FedEx Shipment Charges Reference
Shipment charges(KG)	Reference DHL(USD$)
0.00kg-1.00kg	USD$30.00 - USD$60.00
1.00kg-2.00kg	USD$40.00 - USD$80.00
2.00kg-3.00kg	USD$50.00 - USD$100.00

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