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Renesas ISL80019FRZ-T7A
- Part No.:
- ISL80019FRZ-T7A
- Manufacturer:
- Renesas
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
ISL80019FRZ-T7A.pdf
- Description:
- IC REG BUCK ADJ 1.5A 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,469
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Product details
Overview
ISL80019FRZ-T7A from Renesas (formerly Intersil) is a monolithic synchronous buck regulator delivering up to 1.5A continuous output current from a 2.7V–5.5V input, operating at 1MHz switching frequency with internal compensation and 0.6V feedback reference. It integrates low-rDS(ON) PMOS/NMOS power switches, supports 100% duty cycle operation, and targets FPGA core voltage regulation in space-constrained industrial embedded systems.
For engineers reviewing the ISL80019FRZ-T7A datasheet, ISL80019FRZ-T7A pinout, ISL80019FRZ-T7A application, or ISL80019FRZ-T7A equivalent, key selection criteria include its -40°C to +125°C extended temperature rating, PFM/PWM light-load mode selectability, integrated thermal shutdown, and 2mm×2mm TDFN package with exposed thermal pad for high-power-density DC/DC conversion.
Technical Context
The ISL80019FRZ-T7A uses peak current-mode control with slope compensation to ensure stability across wide load and input ranges. Its architecture eliminates the need for an external bootstrap capacitor due to the integrated PMOS high-side switch, simplifying layout and reducing BOM count.
It supports dual operation modes: PWM for low-noise, fixed-frequency performance under medium-to-heavy loads, and PFM for ultra-low quiescent current (35µA typical) during light-load conditions-enabling high efficiency across the full 0–1.5A output range without external mode-control circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 2.7V to 5.5V - compatible with single-cell Li-ion, USB, and 3.3V/5V rail inputs without pre-regulation. |
| IOUT Max | 1.5A continuous - sufficient for low-power FPGA I/O banks, microcontroller cores, and ASIC auxiliary rails. |
| fSW | 1MHz nominal - enables use of compact 1.0–3.3µH inductors and reduces EMI filtering requirements. |
| VFB | 0.600V ±5mV - precise reference enabling accurate output voltage setting via standard resistor dividers (e.g., 0.8V to 3.3V). |
| Junction Temp Range | -40°C to +125°C - qualified for extended-temperature industrial and automotive under-hood applications. |
| Efficiency Peak | Up to 95% - achieved at mid-load (e.g., 1.2V@1A, [email protected]), minimizing thermal dissipation in sealed enclosures. |
| Quiescent Current | 35µA (PFM, no load) - extends battery runtime in always-on sensor nodes and IoT edge devices. |
Pinout & Package
ISL80019FRZ-T7A is housed in an 8-pin, 2mm×2mm TDFN package with exposed thermal pad (Pin 9), optimized for high thermal conductivity and minimal PCB area (<0.10 in² total solution size).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Input power supply | Connects to 2.7–5.5V source; requires ≥10µF ceramic decoupling capacitor placed adjacent to pin. |
| EN (Pin 2) | Enable control | Active-high logic input; device enabled when >1.4V; internal 100Ω discharge path active during disable. |
| MODE (Pin 3) | Operation mode select | Tied to VIN for PWM; grounded for PFM; internal 1MΩ pull-down prevents floating state. |
| PG (Pin 4) | Power-good indicator | Open-drain output pulled low during soft-start or if VOUT falls outside ±10% regulation window. |
| COMP (Pin 5) | Error amplifier output | Internally compensated when tied to VIN; externally compensated via RC network to GND for custom loop tuning. |
| FB (Pin 6) | Feedback input | Monitors output voltage divider; sets VOUT = 0.6V × (1 + R1/R2); used by PG and UVLO circuits. |
| PGND (Pin 7) | Power/analog ground | Must connect directly to PCB ground plane; shared return for power stage and analog circuitry. |
| PHASE (Pin 8) | Switching node | Connects to inductor; carries high di/dt switching current; discharged via 100Ω resistor during disable. |
Key Features
| Feature | Design Value |
|---|---|
| PMOS high-side switch | Eliminates boot capacitor requirement, reducing component count and layout complexity. |
| Selectible PFM/PWM mode | Enables automatic or forced light-load efficiency optimization without external control logic. |
| 100% duty-cycle capability | Supports ultra-low dropout operation (200mV @ 1.5A), critical for near-input-output voltage rails. |
| Integrated protections | Includes overcurrent, short-circuit, over-temperature, VIN undervoltage lockout, and VOUT overvoltage protection. |
| Internal/external compensation | Flexible loop design: default internal RC network (27pF/200kΩ) or user-configurable external network. |
Applications
| FPGA Core Power | Industrial Sensor Node |
|---|---|
|
Use Scenario: Providing stable 1.2V or 1.5V core voltage to Xilinx Spartan-7 or Intel MAX 10 FPGAs in factory automation controllers. IC Role / Device Role / Timing Role: Primary point-of-load regulator with fast transient response to handle dynamic logic switching currents. Use Value: 1MHz switching and internal compensation enable <0.10 in² solution size while maintaining <±1% output regulation under 1.5A step loads. |
Use Scenario: Powering ultra-low-power ARM Cortex-M4 microcontrollers and MEMS accelerometers in battery-operated predictive maintenance sensors. IC Role / Device Role / Timing Role: Main system regulator operating in PFM mode during sleep cycles and PWM during data transmission bursts. Use Value: 35µA quiescent current extends 2xAA battery life beyond 5 years in 1% duty-cycle monitoring applications. |
| Set-Top Box SoC Rail | Automotive Infotainment Display |
|
Use Scenario: Generating 1.8V I/O supply for Broadcom BCM7278 SoCs in cable modems and streaming boxes. IC Role / Device Role / Timing Role: Secondary buck converter downstream of primary 5V rail, supporting dynamic voltage scaling. Use Value: 1.5A output and -40°C to +125°C rating ensure reliable operation in thermally dense chassis with no derating required. |
Use Scenario: Supplying 3.3V to TFT-LCD timing controllers and touch ICs in dashboard displays exposed to under-dash ambient temperatures. IC Role / Device Role / Timing Role: High-reliability PoL regulator with thermal shutdown and overvoltage protection meeting AEC-Q100 stress requirements. Use Value: Exposed thermal pad and 7°C/W θJC enable direct thermal coupling to metal chassis, sustaining 1.5A output at +105°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS628641RQYR | 1.2A max, 2.5–5.5V input, 2.4MHz fSW, 0.6V VFB, -40°C to +125°C | Limited output current; higher fSW demands smaller inductor but increases switching loss at high load | Preferred where board space is more constrained than current demand, e.g., wearable UI modules |
| MP2143GJ-Z | 2A max, 2.5–5.5V input, 1.5MHz fSW, 0.6V VFB, -40°C to +125°C, no PFM mode | Higher current capability but lacks PFM; higher quiescent current (25µA vs. 35µA) and no 100% duty cycle | Selected when 2A headroom is required and light-load efficiency is secondary to cost and availability |
Compared with TPS628641RQYR and MP2143GJ-Z, the ISL80019FRZ-T7A uniquely balances 1.5A output, 1MHz operation, PFM/PWM flexibility, 100% duty cycle, and extended temperature support in a 2mm×2mm footprint-making it optimal for thermally demanding, battery-sensitive industrial PoL designs.
Availability
ISL80019FRZ-T7A is available at Aetrix Electronics and suitable for FPGA core power, industrial sensor nodes, and automotive display subsystems requiring stable component supply across extended temperature and long product lifecycles.
Supply support for ISL80019FRZ-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 acquired Intersil in 2017 and maintains full technical and manufacturing continuity for its high-performance analog and power management portfolio.
The ISL80019FRZ-T7A belongs to Renesas' compact synchronous buck regulator family, designed specifically for space- and efficiency-critical point-of-load applications in industrial, computing, and automotive electronics.
FAQ
What is the maximum output current and operating temperature range of the ISL80019FRZ-T7A?
The ISL80019FRZ-T7A delivers up to 1.5A continuous output current and is rated for operation from -40°C to +125°C junction temperature. This extended range is validated per the datasheet's Recommended Operating Conditions and Thermal Information sections, making it suitable for industrial control cabinets and automotive under-dash environments where ambient temperatures exceed +85°C.
Does the ISL80019FRZ-T7A require an external bootstrap capacitor?
No, the ISL80019FRZ-T7A does not require an external bootstrap capacitor because it integrates a PMOS high-side MOSFET. This architecture eliminates the need for charge-pump circuitry or external capacitors typically required by NMOS-based synchronous buck regulators, simplifying layout and reducing bill-of-materials count.
How does the MODE pin configure PFM versus PWM operation on the ISL80019FRZ-T7A?
On the ISL80019FRZ-T7A, the MODE pin selects operating mode: connecting it to VIN (≥2.5V) forces PWM mode for fixed-frequency, low-noise operation; grounding it selects PFM mode for ultra-low quiescent current (35µA typical) at light loads. An internal 1MΩ pull-down resistor prevents undefined states if left unconnected, though tie-off is recommended.
What protection features are integrated into the ISL80019FRZ-T7A?
The ISL80019FRZ-T7A integrates overcurrent protection (2.5A typical limit), short-circuit protection, thermal shutdown (150°C trip, 125°C hysteresis), VIN undervoltage lockout (2.7V rising threshold), and VOUT overvoltage protection (115% of setpoint). These functions are implemented in hardware and require no external components to activate.
Can the ISL80019FRZ-T7A operate at 100% duty cycle, and under what conditions?
Yes, the ISL80019FRZ-T7A supports 100% duty cycle operation at its 1MHz version (which includes ISL80019FRZ-T7A), enabling dropout as low as 200mV at 1.5A output current. This feature is explicitly confirmed in the datasheet's "100% Duty Cycle (1MHz Version)" section and applies only when configured for 1MHz switching-not the 2MHz variants.
ISL80019FRZ-T7A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- 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):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 1.5A
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN-EP (2x2)
ISL80019FRZ-T7A FAQ
1.How can I place an order for ISL80019FRZ-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL80019FRZ-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 ISL80019FRZ-T7A reliable?
The price and inventory of ISL80019FRZ-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL80019FRZ-T7A is usually 5 days.
3.What payment methods are accepted for ISL80019FRZ-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL80019FRZ-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL80019FRZ-T7A?
ISL80019FRZ-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL80019FRZ-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 ISL80019FRZ-T7A?
For technical support, including ISL80019FRZ-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL80019FRZ-T7A requirements.
6.How does Aetrix verify that ISL80019FRZ-T7A is sourced from the original manufacturer or authorized distributors?
All ISL80019FRZ-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 ISL80019FRZ-T7A meets industry standards.
7.What is the process for return or replacement of ISL80019FRZ-T7A?
All ISL80019FRZ-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL80019FRZ-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 ISL80019FRZ-T7A part is unused and in its original packaging.
Return procedure for ISL80019FRZ-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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