ISL9014IRNFZ-T

The ISL9014IRNFZ-T ISL9014IRNFZ-T Intersil IC REG LINEAR 300MA 10DFN 6000 from Intersil represents a dual-output linear voltage regulator designed to deliver 300mA per channel in a compact 10-DFN (3x3mm) footprint. This IC addresses power rail requirements in space-constrained applications where multiple regulated voltages are needed from a single device, combining low dropout performance with a small thermal and board-area footprint suitable for portable and battery-powered systems.

As a two-channel linear regulator, the ISL9014IRNFZ-T ISL9014IRNFZ-T Intersil IC REG LINEAR 300MA 10DFN 6000 allows independent voltage outputs to be derived from a common input rail, reducing component count and simplifying board layout compared to discrete single-output regulators. The 300mA output current capability per channel supports typical analog and digital subsystems including sensors, microcontrollers, communication modules, and interface peripherals. The device's linear topology ensures low output noise and fast transient response, characteristics often preferred in noise-sensitive analog circuits, RF front-ends, and precision measurement applications where switching regulator artifacts would degrade signal integrity.

The 10-VFDFN package with exposed thermal pad facilitates efficient heat dissipation while occupying minimal PCB real estate, a format commonly employed in wearable devices, IoT nodes, and handheld instruments. Surface mount construction aligns with automated assembly processes and enables high-density board designs. The specified operating temperature range of -40°C to 85°C covers industrial and extended commercial environments, though designers should account for thermal derating at higher ambient temperatures given the linear regulator's inherent power dissipation under load.

This part carries an obsolete status, indicating that Intersil has discontinued active production. Engineers working with existing designs that specify the ISL9014IRNFZ-T ISL9014IRNFZ-T Intersil IC REG LINEAR 300MA 10DFN 6000 may need to secure inventory through authorized distributors or consider alternative dual-output linear regulators with compatible electrical and mechanical characteristics. When evaluating replacements, key parameters to match include output current rating, dropout voltage, output voltage range, package footprint, and pinout compatibility to minimize redesign effort. For new designs, it is advisable to select currently active components to ensure long-term availability and manufacturer support.

The device ships in bulk packaging and meets RoHS3 compliance standards, which restrict hazardous substances including lead, mercury, and certain flame retardants. The ECCN classification of EAR99 indicates the part is subject to standard U.S. export regulations without special licensing requirements for most destinations, while the HTSUS code 8542.39.0001 applies to electronic integrated circuits for customs and tariff purposes.

In application scenarios where dual low-noise voltage rails are required—such as powering an analog sensor interface alongside a digital controller, or supplying separate rails for core logic and I/O buffers—the ISL9014IRNFZ-T ISL9014IRNFZ-T Intersil IC REG LINEAR 300MA 10DFN 6000 provides a consolidated solution that reduces BOM complexity. The linear regulation approach trades power efficiency for simplicity and noise performance, making it suitable for applications where battery life is moderate and signal quality is a primary concern. Designers should evaluate input-to-output voltage differential and total power dissipation to ensure thermal limits are not exceeded, particularly in thermally constrained enclosures or at elevated ambient temperatures.

ISL9014IRNFZ-T ISL9014IRNFZ-T Intersil IC REG LINEAR 300MA 10DFN 6000 (1)

Replacing the obsolete Intersil ISL9014IRNFZ-T dual 300 mA LDO without creating regulator-risk

The Intersil ISL9014IRNFZ-T ISL9014IRNFZ-T Intersil IC REG LINEAR 300MA 10DFN 6000 is an obsolete dual-output linear voltage regulator used where two low-current rails must be generated from a compact surface-mount PMIC footprint. Replacement searches usually begin when existing stock becomes limited, the approved vendor list needs a second source, or a redesign must keep the same rail behavior while improving availability.

The main challenge is that a dual LDO replacement is not selected only by output current. The output voltage option, dropout voltage, enable logic, noise performance, capacitor requirements, thermal pad layout, package size, and pinout all affect whether an alternative can be used as a direct substitute or only as a redesign candidate.

Potential equivalent or alternative part numbers to evaluate include:

• ISL9014IRNFZ-T ISL9014IRNFZ-T Intersil IC REG LINEAR 300MA 10DFN 6000 from Intersil / Renesas as the same original device when available from stock
• ADP223ACPZ-R7 ADP223ACPZ-R7 Analog Devices Inc. IC REG LINEAR POS ADJ 8LFCSP 26271 from Analog Devices
• MIC5321-xxYMT-TR from Microchip Technology
• AP7345D-xxFS4-7 from Diodes Incorporated
• TPS7A8801RTJR TPS7A8801RTJR Texas Instruments IC REG LINEAR POS ADJ 1A 20QFN 3550 from Texas Instruments
• RT9193-xxGB from Richtek

These parts should not be treated as automatic drop-in replacements. They are best evaluated as replacement candidates, with the final choice depending on the exact output-voltage code, PCB footprint, load current, stability capacitors, and qualification requirements.

What the Intersil ISL9014IRNFZ-T does in a dual-output PMIC rail design

The Intersil ISL9014IRNFZ-T ISL9014IRNFZ-T Intersil IC REG LINEAR 300MA 10DFN 6000 is a dual linear regulator IC with two regulated outputs and a rated output current of 300 mA. It is supplied in a 10-DFN 3 mm x 3 mm package with an exposed pad, making it suitable for compact boards where thermal spreading through the PCB copper is part of the design.

Because the ISL9014IRNFZ-T ISL9014IRNFZ-T Intersil IC REG LINEAR 300MA 10DFN 6000 integrates two regulators in one small package, the replacement decision must preserve both electrical behavior and board-level fit. A single-channel LDO can replace one rail electrically, but it usually increases BOM count and consumes more PCB area. A higher-current dual LDO may solve availability issues, but it can require different compensation capacitors, a new footprint, or revised thermal calculations.

The encoded output-voltage option is one of the first items to verify. The “RNF” code in ISL9014IRNFZ-T ISL9014IRNFZ-T Intersil IC REG LINEAR 300MA 10DFN 6000 identifies a manufacturer-specific voltage configuration, so the original schematic, BOM, and datasheet ordering table should be checked before choosing an equivalent dual LDO. If the replacement has the wrong fixed output voltage, similar current rating and package size will not make it compatible.

Typical application scenarios include powering microcontroller core and I/O rails, mixed-signal IC supplies, low-noise analog sections, RF support rails, portable equipment subsystems, and compact embedded modules. In these designs, replacement suitability depends on dropout margin at the lowest input voltage, output noise tolerance, startup sequencing, enable-pin polarity, load transient behavior, and allowable PCB changes.

Candidate equivalent and alternative part numbers for Intersil ISL9014IRNFZ-T replacement

The following table compares realistic ISL9014IRNFZ-T ISL9014IRNFZ-T Intersil IC REG LINEAR 300MA 10DFN 6000 equivalent and alternative part numbers from an engineering replacement perspective. Exact voltage suffixes must be confirmed against the original rail requirements before purchasing or approving a substitute.

Manufacturer	Part Number	Key Specifications	Product Features	Typical Applications	Why It Can Replace the Original Part	Main Differences or Limitations	Recommended Usage
Intersil / Renesas	ISL9014IRNFZ-T ISL9014IRNFZ-T Intersil IC REG LINEAR 300MA 10DFN 6000	Dual LDO, 2 outputs, 300 mA, 10-DFN 3 mm x 3 mm, -40°C to +85°C	Original device, same ordering part number, RoHS3 compliant	Existing boards already qualified with ISL9014IRNFZ-T ISL9014IRNFZ-T Intersil IC REG LINEAR 300MA 10DFN 6000	Best electrical and mechanical match when authentic stock is available	Obsolete lifecycle; supply availability may be limited	Preferred for maintenance builds, repair, and production continuation without PCB changes
Analog Devices	ADP223ACPZ-R7 ADP223ACPZ-R7 Analog Devices Inc. IC REG LINEAR POS ADJ 8LFCSP 26271	Dual 300 mA low-noise LDO family, compact LFCSP package options	Low-noise operation, dual-output integration, modern analog power-rail behavior	Mixed-signal ICs, portable systems, RF-adjacent rails, FPGA auxiliary rails	Similar dual-regulator function and comparable output-current class	Pinout, package details, enable behavior, and voltage options must be checked; not assumed drop-in	Good redesign candidate when low noise and dual-output integration are required
Microchip Technology	MIC5321-xxYMT-TR	Dual LDO family with 300 mA-class outputs depending on option, small MLF/TMLF-style packages	Compact dual regulator, fixed-voltage options, low quiescent-current style operation	Battery-powered equipment, handheld devices, embedded control modules	Can replace the functional role of two low-current regulated rails in one package	Voltage suffix “xx” must match rails; capacitor ESR and footprint may differ	Suitable for compact redesigns where small package size and dual-output regulation matter
Diodes Incorporated	AP7345D-xxFS4-7	Dual 300 mA LDO family, fixed-voltage options, DFN-style package variants	Cost-conscious dual LDO, small footprint, common portable-electronics regulator architecture	Consumer electronics, sensor boards, wireless modules, low-power digital rails	Similar dual 300 mA replacement concept for space-constrained boards	Electrical noise, dropout, pin assignment, and available fixed-voltage combinations require validation	Practical alternative for cost-sensitive redesigns with standard rail tolerances
Texas Instruments	TPS7A8801RTJR TPS7A8801RTJR Texas Instruments IC REG LINEAR POS ADJ 1A 20QFN 3550	Dual high-current adjustable LDO, up to 1 A per channel class, WQFN package	Low-noise, high-PSRR, adjustable outputs, stronger load capability	Noise-sensitive processors, ADC/DAC rails, communications hardware, high-performance embedded rails	Can replace the regulation function when the design needs more margin or improved analog supply quality	Larger/higher-current device; different package, compensation, thermal behavior, and BOM cost	Best for redesigns where improved noise, PSRR, or current headroom is more valuable than footprint continuity
Richtek	RT9193-xxGB	Dual 300 mA LDO family, fixed-voltage options, small package variants	Dual-output regulator aimed at compact electronics, fixed rail configurations	Portable products, MCU/logic supplies, low-power modules	Offers a similar dual-LDO architecture for two regulated low-voltage rails	Exact package, voltage code, enable logic, and capacitor requirements must be confirmed	Useful second-source candidate when BOM cost and package availability are key constraints

Among these options, the original ISL9014IRNFZ-T ISL9014IRNFZ-T Intersil IC REG LINEAR 300MA 10DFN 6000 remains the lowest-risk choice for boards that cannot be modified. The ADP223ACPZ-R7 ADP223ACPZ-R7 Analog Devices Inc. IC REG LINEAR POS ADJ 8LFCSP 26271 and MIC5321-xxYMT-TR are closer functional alternatives for compact dual-rail designs. The AP7345D-xxFS4-7 and RT9193-xxGB are often considered where procurement flexibility and standard fixed-output rails are priorities. The TPS7A8801RTJR TPS7A8801RTJR Texas Instruments IC REG LINEAR POS ADJ 1A 20QFN 3550 is not a like-for-like part, but it becomes attractive when the replacement project is also intended to improve current capability, PSRR, or supply noise performance.

Engineering trade-offs when comparing ISL9014IRNFZ-T replacement options

A replacement decision should separate direct substitution from redesign suitability. For the Intersil ISL9014IRNFZ-T ISL9014IRNFZ-T Intersil IC REG LINEAR 300MA 10DFN 6000 , the highest-confidence path is a same-part replacement. If the PCB can be changed, the evaluation can expand to dual LDO alternatives with stronger availability, different voltage options, or improved performance.

From a practical replacement workflow, the first step is to confirm whether the design can accept only a direct equivalent or whether a PCB revision is allowed. If no layout change is acceptable, sourcing genuine ISL9014IRNFZ-T ISL9014IRNFZ-T Intersil IC REG LINEAR 300MA 10DFN 6000 stock is the appropriate route. If layout changes are possible, ADP223ACPZ-R7 ADP223ACPZ-R7 Analog Devices Inc. IC REG LINEAR POS ADJ 8LFCSP 26271 , MIC5321-xxYMT-TR, AP7345D-xxFS4-7, TPS7A8801RTJR TPS7A8801RTJR Texas Instruments IC REG LINEAR POS ADJ 1A 20QFN 3550 , and RT9193-xxGB can be evaluated according to rail voltage, load current, noise budget, dropout margin, thermal rise, and capacitor compatibility.

For compact consumer or embedded boards, MIC5321-xxYMT-TR, AP7345D-xxFS4-7, and RT9193-xxGB may provide a closer balance of size, function, and cost. For mixed-signal or RF-sensitive rails, ADP223ACPZ-R7 ADP223ACPZ-R7 Analog Devices Inc. IC REG LINEAR POS ADJ 8LFCSP 26271 may be more attractive if its available voltage options align with the original outputs. For systems where the ISL9014IRNFZ-T ISL9014IRNFZ-T Intersil IC REG LINEAR 300MA 10DFN 6000 is being replaced as part of a broader power-tree redesign, TPS7A8801RTJR TPS7A8801RTJR Texas Instruments IC REG LINEAR POS ADJ 1A 20QFN 3550 offers more current and performance headroom, but it should be treated as a new regulator design rather than a simple substitute.

For quotations and availability checks on ISL9014IRNFZ-T ISL9014IRNFZ-T Intersil IC REG LINEAR 300MA 10DFN 6000 replacement parts and alternative dual LDO regulators, obtain pricing through IC-Components.com or email Info@IC-Components.com.