My Inquiry
My Account
Renesas ISL85014FRZ-T7A
- Part No.:
- ISL85014FRZ-T7A
- Manufacturer:
- Renesas
- Package:
- 15-WFQFN
- Datasheet:
-
ISL85014FRZ-T7A.pdf
- Description:
- IC REG BUCK ADJ 14A 15TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,774
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ISL85014FRZ-T7A from Renesas Electronics is a monolithic synchronous buck regulator delivering 14A continuous output current from a 3.8V–18V input, featuring peak-current-mode control, integrated 15mΩ high-side and 6.5mΩ low-side MOSFETs, and selectable 300kHz/600kHz switching frequency. It supports prebias start-up, hiccup or latch-off overcurrent protection, and operates in servers, telecom POLs, and industrial PLCs.
For engineers reviewing the ISL85014FRZ-T7A datasheet, ISL85014FRZ-T7A pinout, ISL85014FRZ-T7A application, or ISL85014FRZ-T7A equivalent, key selection considerations include its 3.5mm×3.5mm TQFN-15 package thermal performance, internal/external compensation flexibility, 0.6V feedback reference accuracy (±1.75%), and dual OCP scheme configurability via MODE pin.
Technical Context
The ISL85014FRZ-T7A implements a temperature-compensated peak-current-mode architecture with slope compensation (470mV/µs at 600kHz), enabling stable CCM/DCM operation across wide VIN/VOUT ranges. Its error amplifier features 5.5MHz bandwidth and 70dB gain, supporting both internal (200Ω-to-GND on COMP) and external compensation networks.
Protection logic integrates independent high-side (20A typ) and low-side (23A forward, –7.5A reverse) current limits, input overvoltage lockout (19.5–22V trip), output overvoltage detection (110–121% of VFB), and thermal shutdown at 160°C with 10°C hysteresis - all fully autonomous without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | PVIN: 3.8V–18V; VIN: 4.5V–18V - supports wide-input industrial and telecom rails including 12V and 48V-derived supplies. |
| Output Current | 14A continuous - enables single-chip POL for FPGA core, ASIC, or multi-core processor rails without parallel devices. |
| Feedback Reference | 0.600V ±1.75% (–40°C to +125°C) - sets accurate output voltage down to 0.6V with minimal resistor divider error. |
| Switching Frequency | Selectable 300kHz (FREQ=GND) or 600kHz (FREQ=float); sync range 100kHz–1MHz - balances efficiency vs. size for 1–5V outputs. |
| Power FET RDS(on) | High-side: 15mΩ; low-side: 6.5mΩ @ 900mA - minimizes conduction loss at full load, enabling >90% efficiency at 12VIN/3.3VOUT. |
| Protection Features | Integrated hiccup/latch-off OCP, input/output OVP, thermal shutdown, and PG window comparator - eliminates need for external fault management circuitry. |
| Package | 15-lead 3.5mm×3.5mm TQFN, 0.8mm max height - provides low θJA = 33°C/W and θJC = 1.2°C/W for high-power density layouts. |
Pinout & Package
ISL85014FRZ-T7A is housed in a RoHS-compliant, thermally enhanced 15-lead 3.5mm×3.5mm TQFN package with exposed thermal pad. Pin 7 (GND) and pins 12–13 (DNC) connect directly to the EPAD for optimal thermal dissipation and noise immunity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SYNC) | Synchronization & mode control | Configures FCCM (float), DEM (GND), or external clock sync (100–1000kHz rising-edge triggered). |
| 2 (MODE) | OCP scheme select | Float = hiccup mode (150ms blanking); GND = latch-off - determines system-level fault recovery behavior. |
| 3 (FREQ) | Default frequency setting | GND = 300kHz; float = 600kHz - sets internal oscillator without external components. |
| 4 (PG) | Open-drain power-good indicator | Asserts high when FB is 90–116% of target; requires external pull-up - enables sequenced power-up in multi-rail systems. |
| 5 (VDD) | LDO decoupling | Supplies internal 5V bias rail; requires 2.2µF ceramic cap to GND - critical for gate driver stability and analog block operation. |
| 6 (BOOT) | High-side gate driver supply | Connects to PHASE via 0.1µF bootstrap capacitor - enables N-channel high-side MOSFET drive without external charge pump. |
| 7 (GND) | Power ground reference | EPAD connection point; must be tied to PCB ground plane with multiple vias - ensures low-impedance return path and thermal relief. |
| 8 (PHASE) | Switch node | Connects internal FETs and external inductor - high dv/dt node requiring tight layout and minimized loop area. |
| 9 (PVIN) | Power stage input | Supplies PWM power stage; requires local ceramic decoupling - separates high-current path from control logic supply (VIN). |
| 10 (FB) | Voltage feedback input | Inverting input to error amplifier; senses output via resistor divider - sets regulated output voltage with 0.6V reference. |
| 11 (COMP) | Error amplifier output | Connects to FB for compensation network; 200Ω-to-GND enables internal compensation - simplifies design for most applications. |
| 12,13 (DNC) | No-connect terminals | Must remain unconnected and floating - no internal function; routing or soldering violates specification. |
| 14 (EN) | Enable control | Active-high enable; asserts at ~0.6V threshold - supports precise power sequencing and standby control. |
| 15 (VIN) | Control circuit input | Supplies internal LDO and logic blocks; requires 1µF ceramic decoupling - operates independently from PVIN for flexible biasing. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated power stage | Monolithic 15mΩ/6.5mΩ synchronous FETs eliminate external MOSFETs and drivers, reducing BOM count and layout complexity. |
| Flexible frequency control | Hardware-selectable 300kHz/600kHz plus 100–1000kHz external sync - enables EMI optimization and multi-phase synchronization. |
| Prebias start-up support | Starts into existing output voltage without reverse current - essential for hot-swap and redundant power systems. |
| Dual OCP configuration | Hiccup (recovery) or latch-off (fail-safe) modes selected by MODE pin - matches safety requirements of industrial and telecom equipment. |
| Thermally robust package | 3.5mm×3.5mm TQFN with 1.2°C/W junction-to-case resistance - sustains 14A continuous load in compact space-constrained designs. |
| Internal compensation option | 200Ω resistor from COMP to GND enables complete regulation loop without external RC network - accelerates prototyping. |
Applications
| Server Point-of-Load (POL) | Industrial PLC Power Rails |
|---|---|
|
Use Scenario: Regulating 1.8V/12A core supply for Xeon D processors in 1U rack servers with strict thermal envelope. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering tightly regulated, low-noise DC output with fast transient response to CPU load steps. Use Value: Integrated 14A capability and 6.5mΩ low-side FET minimize voltage droop during 5A/µs transients, maintaining <±1% regulation under dynamic load. |
Use Scenario: Generating 5V/10A auxiliary rail for I/O modules in factory automation controllers operating at –40°C to +85°C ambient. IC Role / Device Role / Timing Role: High-reliability DC-DC converter with latch-off OCP and input OVP for harsh industrial environments. Use Value: –40°C to +125°C junction-rated operation and 19.5V input OVP prevent damage from 24V supply surges common in PLC backplanes. |
| Telecom Base Station RF Cards | Test & Measurement Equipment |
|
Use Scenario: Providing 3.3V/14A bias to GaN PA modules in 5G macro base stations requiring low EMI and high efficiency. IC Role / Device Role / Timing Role: Synchronized buck regulator operating at 600kHz with external clock to avoid interference with sensitive RF bands. Use Value: External sync capability allows phase alignment with system master clock, reducing beat frequencies and conducted emissions. |
Use Scenario: Supplying 1.2V/10A digital core rail in portable oscilloscopes where board space and thermal management are critical. IC Role / Device Role / Timing Role: Compact, high-efficiency POL with prebias start-up for battery-backed operation and seamless AC/DC switchover. Use Value: 3.5mm×3.5mm footprint and 0.8mm height enable integration into ultra-thin instrument chassis without heatsink requirement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP28164GQVA-LF-Z | 12A rating, 4.5–18V input, fixed 500kHz fSW, no external sync, smaller 3mm×3mm QFN | Lacks SYNC pin and MODE-selectable OCP; lower current capacity limits use in 14A FPGA rails | Choose for cost-sensitive, space-constrained 12A applications where sync and dual OCP are unnecessary. |
| TPS546B24RVFT | 15A rating, 4–18V input, PMBus interface, 300–2000kHz programmable fSW, larger 4mm×4mm VQFN | Includes digital telemetry and margining; requires firmware integration and adds layout complexity | Choose when remote monitoring, dynamic voltage scaling, or compliance with PMBus standards is required. |
Compared with MP28164GQVA-LF-Z and TPS546B24RVFT, the ISL85014FRZ-T7A delivers optimal balance of analog simplicity, thermal performance in minimal area, and hardware-configurable protection - making it ideal for high-volume industrial and telecom POLs where reliability and ease of validation are prioritized over digital control.
Availability
ISL85014FRZ-T7A is available at Aetrix Electronics and suitable for servers and cloud infrastructure POLs, industrial PLCs and factory automation systems, and telecom and networking equipment requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for ISL85014FRZ-T7A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics is a global semiconductor leader delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, and datacenter applications with emphasis on high-reliability, energy-efficient design.
The ISL85014FRZ-T7A belongs to Renesas' Power Management IC portfolio, engineered specifically for high-current, space-constrained point-of-load regulation in mission-critical infrastructure where thermal performance, protection robustness, and analog simplicity are paramount.
FAQ
What is the recommended input capacitor configuration for ISL85014FRZ-T7A in a 12V input, 3.3V/14A application?
For ISL85014FRZ-T7A operating at 12VIN/3.3VOUT, the datasheet specifies three 22µF ceramic capacitors (total 66µF) on PVIN per Table 1. Use X5R/X7R 0805 or 1206 MLCCs with ≤5mΩ ESL, placed within 3mm of PVIN and GND pins. A bulk polymer capacitor (e.g., 1000µF/6.3V, 5mΩ ESR) is also recommended on VIN to handle low-frequency ripple.
Does ISL85014FRZ-T7A support start-up into a prebiased output, and what conditions must be met?
Yes, ISL85014FRZ-T7A supports prebias start-up. The output voltage must be less than the programmed VOUT (e.g., <3.3V for a 3.3V rail), and both high-side and low-side FETs remain off until the internal soft-start voltage exceeds the FB voltage. No external diode is needed, and reverse current is blocked during start-up.
How does the MODE pin affect overcurrent protection behavior in ISL85014FRZ-T7A?
The MODE pin configures ISL85014FRZ-T7A's OCP response: floating enables hiccup mode (150ms blanking after eight consecutive OCP events), while grounding enables latch-off mode (permanent shutdown until EN cycle). This allows matching protection strategy to system safety requirements - hiccup for recoverable faults, latch-off for catastrophic failure isolation.
Can ISL85014FRZ-T7A be synchronized to an external clock, and what are the timing requirements?
Yes, ISL85014FRZ-T7A accepts external sync signals from 100kHz to 1MHz on the SYNC pin, triggered by the rising edge. The SYNC pulse high-time must exceed 100ns, and the signal must be clean with <1V/ns slew rate to avoid false triggering. Sync overrides FREQ pin setting and maintains stable operation even under clock jitter.
What is the thermal performance difference between ISL85014FRZ-T7A and competing 14A buck regulators in the same footprint?
ISL85014FRZ-T7A achieves θJC = 1.2°C/W in its 3.5mm×3.5mm TQFN package - 30% lower than typical 14A competitors in similar footprints. This translates to ~12°C lower junction temperature at 14A/12VIN/3.3VOUT under identical PCB layout, enabling higher sustained power density without forced air or heatsinks.
ISL85014FRZ-T7A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 15-WFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3.8V
- Voltage - Input (Max):
- 18V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 18V
- Current - Output:
- 14A
- Frequency - Switching:
- 300kHz, 600kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 15-TQFN (3.5x3.5)
ISL85014FRZ-T7A FAQ
1.How can I place an order for ISL85014FRZ-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL85014FRZ-T7A on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ISL85014FRZ-T7A reliable?
The price and inventory of ISL85014FRZ-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL85014FRZ-T7A is usually 5 days.
3.What payment methods are accepted for ISL85014FRZ-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL85014FRZ-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL85014FRZ-T7A?
ISL85014FRZ-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL85014FRZ-T7A order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ISL85014FRZ-T7A?
For technical support, including ISL85014FRZ-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL85014FRZ-T7A requirements.
6.How does Aetrix verify that ISL85014FRZ-T7A is sourced from the original manufacturer or authorized distributors?
All ISL85014FRZ-T7A products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ISL85014FRZ-T7A meets industry standards.
7.What is the process for return or replacement of ISL85014FRZ-T7A?
All ISL85014FRZ-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL85014FRZ-T7A, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ISL85014FRZ-T7A part is unused and in its original packaging.
Return procedure for ISL85014FRZ-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL85014FRZ-T7A Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
