My Inquiry
My Account
Renesas ISL8036IRZ-T7AR5194
- Part No.:
- ISL8036IRZ-T7AR5194
- Manufacturer:
- Renesas
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
ISL8036IRZ-T7AR5194.pdf
- Description:
- IC REG BUCK ADJ 3A/3A DL 24QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,444
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ISL8036IRZ-T7AR5194 from Renesas Electronics is a dual-channel synchronous buck regulator IC delivering up to 3A per channel at 1MHz fixed switching frequency, featuring integrated P- and N-channel MOSFETs, 0.8V reference, 180° out-of-phase operation for EMI reduction, and 100% duty-cycle capability enabling <250mV dropout at 3A-designed for point-of-load power in FPGA, microcontroller, and Li-ion battery-powered systems.
For engineers reviewing the ISL8036IRZ-T7AR5194 datasheet, ISL8036IRZ-T7AR5194 pinout, ISL8036IRZ-T7AR5194 application, or ISL8036IRZ-T7AR5194 equivalent, key selection criteria include dual 3A output capability with current sharing mode (6A), input voltage range of 2.85V–6V, ±2% output voltage accuracy over temperature/load/line, internal digital soft-start (1.5ms), and thermal shutdown protection.
Technical Context
The ISL8036IRZ-T7AR5194 implements current-mode PWM control with internal slope compensation and independent error amplifiers per channel, supporting both dual-output and interleaved current-sharing configurations. Its 180° phase shift between channels reduces input RMS current and output ripple while maintaining tight regulation down to 0.8V.
It integrates low-RDS(on) P-channel (75mΩ typ @ 6V) and N-channel (75mΩ typ @ 6V) MOSFETs, supports external synchronization up to 6MHz, and includes reverse overcurrent protection, hiccup-mode short-circuit response, and soft-discharge functionality during shutdown.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current (per channel) | 3A continuous - supports dual 3A POL rails or combined 6A current-sharing mode |
| Switching Frequency | 1MHz fixed - enables compact 1.5µH inductors and reduces EMI vs lower-frequency alternatives |
| Input Voltage Range | 2.85V to 6V - compatible with single Li+ cell, three NiMH cells, or regulated 5V supply |
| Output Voltage Accuracy | ±2% over temperature/load/line - ensures stable core voltage for µC/FPGA under dynamic conditions |
| Feedback Reference Voltage | 0.8V ±1.25% - sets precise low-voltage outputs (e.g., 1.2V, 1.8V) using external resistor dividers |
| Soft-Start Time | 1.5ms (internal) - prevents inrush current during power-up without external capacitor |
| Thermal Shutdown Threshold | 150°C with 25°C hysteresis - protects against sustained overload or poor PCB thermal design |
Pinout & Package
ISL8036IRZ-T7AR5194 is housed in a thermally enhanced 24-lead 4mm × 4mm QFN package (1mm max height) with exposed thermal pad requiring connection to SGND via multiple vias.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LX1, LX2 | Switch node (Ch1/Ch2) | Connects to inductor high-side terminal; carries high di/dt switching current |
| PGND1, PGND2 | Power ground (Ch1/Ch2) | Separate low-impedance return paths for each channel's power stage to minimize noise coupling |
| VIN1, VIN2 | Input supply (Ch1/Ch2) | Accepts 2.85V–6V; requires local 22µF ceramic decoupling per channel |
| FB1, FB2 | Feedback input (Ch1/Ch2) | Monitors output voltage via resistor divider; sets regulation point at 0.8V reference |
| EN1, EN2 | Enable control (Ch1/Ch2) | Active-high logic input; initiates soft-start and discharges output capacitor when pulled low |
| PG1, PG2 | Power-good indicator (Ch1/Ch2) | Open-drain output with 1ms delay after regulation achieved; signals system readiness |
| SYNC | External sync input | Negative-edge triggered; accepts up to 6MHz clock to synchronize switching frequency |
| SS | Soft-start timing | Tied to VDD for fixed 1.5ms ramp; optional capacitor for adjustable timing in current-sharing mode |
| COMP | Compensation node | Used only in current-sharing mode for external loop compensation network |
| SGND | System ground | Analog reference for feedback, soft-start, and compensation circuits |
| VDD | Logic supply | Must be within ±0.5V of VIN; powers internal control circuitry |
| NC | No-connect | Internally unconnected; must be tied to GND per datasheet recommendation |
Key Features
| Feature | Design Value |
|---|---|
| Integrated P/N MOSFETs | 75mΩ typical RDS(on) per FET pair - eliminates external switches and reduces BOM count and layout area |
| 180° phase interleaving | Halves input ripple current and reduces required input capacitance by ~50% versus in-phase operation |
| Current sharing mode | Enables single 6A output with interleaved PWM - lowers output ripple and improves thermal distribution |
| Reverse overcurrent protection | Detects negative current flow (e.g., during light-load discontinuous conduction) and limits reverse conduction |
| Internal digital soft-start | 1.5ms fixed ramp time - prevents output overshoot and inrush stress on downstream capacitors |
| 100% duty-cycle operation | Supports ultra-low dropout (<250mV at 3A) - critical for battery-powered systems near end-of-discharge |
Applications
| DC/DC POL Modules | µC/µP, FPGA and DSP Power |
|---|---|
Use Scenario: Compact, high-efficiency DC/DC modules for telecom and industrial edge devices requiring dual independent rails. IC Role / Device Role / Timing Role: Dual-channel synchronous buck controller providing isolated 1.2V and 1.8V outputs from 5V input. Use Value: 95% peak efficiency at 3A and 1.5cm² board area enable dense module designs without forced air cooling. |
Use Scenario: Core and I/O voltage regulation for Xilinx Artix-7 FPGAs and ARM Cortex-A series microprocessors. IC Role / Device Role / Timing Role: Primary POL regulator delivering tightly regulated 0.85V core and 1.8V I/O supplies with fast transient response. Use Value: ±2% output accuracy and 180° phase shift ensure stable operation under dynamic load steps up to 3A/µs. |
| Plug-in DC/DC Modules for Routers and Switchers | Li-ion Battery Power Devices |
Use Scenario: Hot-pluggable midplane power modules in enterprise networking equipment with strict EMI limits. IC Role / Device Role / Timing Role: Dual 3A buck regulator operating in current-sharing mode to deliver 6A at 1.2V with reduced input ripple. Use Value: 1MHz switching and interleaved architecture meet CISPR-32 Class B conducted EMI requirements without added filtering. |
Use Scenario: Portable medical monitors and handheld test equipment powered by single-cell Li-ion batteries (2.8–4.2V). IC Role / Device Role / Timing Role: Main system regulator generating 3.3V and 1.8V from varying battery voltage with 100% duty-cycle support. Use Value: Operation down to 2.85V input and <250mV dropout at full load extends usable battery runtime by >12% vs competing regulators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL8036AIRZ | 2.5MHz fixed switching frequency; requires halved inductor values (e.g., 0.6µH vs 1.5µH) | Better suited for space-constrained designs needing smaller magnetics; higher switching loss at high load | Select ISL8036AIRZ when board area is critical and thermal headroom allows higher-frequency operation |
| TPS54360BDRCT | Single-channel 3.5A buck with 100V input rating; no dual-channel or current-sharing capability | Designed for wide-input industrial applications (4.5–60V); lacks phase interleaving and dual-rail flexibility | Choose TPS54360BDRCT only for single-rail, high-input-voltage use cases where ISL8036IRZ-T7AR5194's dual-channel features are unnecessary |
Compared with ISL8036AIRZ, ISL8036IRZ-T7AR5194 offers lower switching losses and relaxed EMI filtering requirements due to its 1MHz frequency, while compared with TPS54360BDRCT, it delivers true dual-rail independence and current-sharing scalability-making it optimal for compact, multi-rail embedded systems.
Availability
ISL8036IRZ-T7AR5194 is available at Aetrix Electronics and suitable for DC/DC POL modules, µC/FPGA power delivery, and Li-ion battery-powered devices requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL8036IRZ-T7AR5194 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 specializing in microcontrollers, analog power management, and connectivity solutions for automotive, industrial, and IoT markets.
The ISL8036 product line delivers highly integrated, high-efficiency dual buck regulators targeting space- and thermally constrained point-of-load applications in computing, communications, and portable electronics.
FAQ
What is the maximum input voltage rating for ISL8036IRZ-T7AR5194?
The absolute maximum input voltage for ISL8036IRZ-T7AR5194 is 6.5V DC or 7V for durations ≤20ms. The recommended operating range is 2.85V to 6V. Exceeding 6.5V risks permanent damage to VIN1/VIN2 pins and internal circuitry, as confirmed in the Absolute Maximum Ratings table on page 8 of FN6853 Rev 3.00.
Does ISL8036IRZ-T7AR5194 support external synchronization, and what is its frequency range?
Yes, ISL8036IRZ-T7AR5194 supports external synchronization via the SYNC pin with a frequency range of 2.64MHz to 6MHz for the ISL8036 variant. The device uses negative-edge triggering and requires the SYNC signal to be referenced to SGND. This capability allows system-level clock alignment to reduce beat frequencies and improve EMI performance.
How does the current sharing mode work in ISL8036IRZ-T7AR5194?
In current sharing mode, ISL8036IRZ-T7AR5194 configures both channels to operate in interleaved PWM with matched duty cycles, delivering up to 6A from a single output. Feedback is connected to FB1 only, COMP is used for external loop compensation, and specific resistor/capacitor values (e.g., R6 = 30kΩ, C6 = 250pF for 0.8V output) are required per Table 2 in FN6853 Rev 3.00.
What is the purpose of the NC pin on ISL8036IRZ-T7AR5194, and how should it be handled?
The NC (No Connect) pin on ISL8036IRZ-T7AR5194 is internally unconnected and must be tied to SGND per the Pin Descriptions section on page 5 of FN6853 Rev 3.00. Leaving it floating may cause unpredictable behavior or increased susceptibility to noise, as confirmed in the datasheet's "Do not leave this pin floating" directive.
Can ISL8036IRZ-T7AR5194 operate with a 0.8V output, and what is the minimum achievable output voltage?
Yes, ISL8036IRZ-T7AR5194 is explicitly optimized for outputs down to 0.8V, as stated on page 1 of FN6853 Rev 3.00. The internal 0.8V reference voltage (±1.25%) sets the lower limit; output voltages below 0.8V are not supported due to amplifier headroom and feedback divider constraints.
ISL8036IRZ-T7AR5194 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 6V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 6V
- Current - Output:
- 3A, 3A
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-QFN (4x4)
ISL8036IRZ-T7AR5194 FAQ
1.How can I place an order for ISL8036IRZ-T7AR5194 through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL8036IRZ-T7AR5194 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 ISL8036IRZ-T7AR5194 reliable?
The price and inventory of ISL8036IRZ-T7AR5194 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL8036IRZ-T7AR5194 is usually 5 days.
3.What payment methods are accepted for ISL8036IRZ-T7AR5194?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL8036IRZ-T7AR5194 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL8036IRZ-T7AR5194?
ISL8036IRZ-T7AR5194 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL8036IRZ-T7AR5194 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 ISL8036IRZ-T7AR5194?
For technical support, including ISL8036IRZ-T7AR5194 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL8036IRZ-T7AR5194 requirements.
6.How does Aetrix verify that ISL8036IRZ-T7AR5194 is sourced from the original manufacturer or authorized distributors?
All ISL8036IRZ-T7AR5194 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 ISL8036IRZ-T7AR5194 meets industry standards.
7.What is the process for return or replacement of ISL8036IRZ-T7AR5194?
All ISL8036IRZ-T7AR5194 units undergo pre-shipment inspection (PSI). If there is an issue with ISL8036IRZ-T7AR5194, 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 ISL8036IRZ-T7AR5194 part is unused and in its original packaging.
Return procedure for ISL8036IRZ-T7AR5194:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL8036IRZ-T7AR5194 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…
