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Renesas ZL2106ALCF
- Part No.:
- ZL2106ALCF
- Manufacturer:
- Renesas
- Package:
- 36-VFQFN Exposed Pad
- Datasheet:
-
ZL2106ALCF.pdf
- Description:
- IC REG BUCK PROG 6A 36QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,847
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Product details
Overview
ZL2106ALCF from Intersil (now Renesas) is a digital synchronous step-down DC/DC converter IC integrating 6A power MOSFETs, PMBus™-compliant I²C/SMBus interface, internal non-volatile memory, and full power management functions-including soft-start, sequencing, tracking, margining, and fault protection-for point-of-load regulation in telecom and industrial systems.
For engineers reviewing the ZL2106ALCF datasheet, ZL2106ALCF pinout, ZL2106ALCF application, or ZL2106ALCF equivalent, this page delivers verified technical context, confirmed pin roles, real-world use cases, and validated alternative options-enabling rapid integration into 5V/12V distributed power systems requiring ±1% output accuracy, digital configurability, and thermal robustness up to +125°C junction temperature.
Technical Context
The ZL2106ALCF implements a mixed-signal Digital-DC architecture combining analog PWM control with digital configuration and monitoring. Its integrated high-side (60–85 mΩ) and low-side (43–65 mΩ) N-channel MOSFETs support continuous 6A output from 4.5V–14V input, delivering regulated output from 0.54V to 5.5V with ±1% VSEN accuracy across -40°C to +85°C ambient.
Power management is executed via multi-mode pins (CFG, SS, VTRK, MGN) and PMBus commands over I²C/SMBus, enabling pin-strapped or host-controlled setup of soft-start delay (2–20 ms), voltage tracking, phase spreading, and fault response (e.g., 16 µs OVP/UVLO detection). Internal LDOs supply 7V (VR), 5V (VRA), and 2.5V (V2P5) rails for bias and logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 6A continuous RMS - supports high-density POL loads without external MOSFETs or gate drivers. |
| Input Voltage Range | 4.5V to 14V - compatible with standard 5V, 12V, and wide-range industrial supplies. |
| Output Voltage Range | 0.54V to 5.5V - covers core logic, I/O, and auxiliary rails including DDR, FPGA, and ASIC supplies. |
| Output Accuracy | ±1% over line/load/temperature - ensures stable operation of precision analog and digital circuits. |
| Switching Frequency | 200 kHz to 1 MHz - adjustable for EMI optimization or efficiency trade-offs in compact layouts. |
| Interface Protocol | PMBus v1.2 compliant over I²C/SMBus - enables standardized telemetry, configuration, and fault logging in multi-rail systems. |
| Thermal Rating | Junction temp range: -40°C to +125°C; θJA = 28°C/W - supports operation in sealed enclosures or high-ambient industrial environments. |
Pinout & Package
Package: 36-lead 6mm × 6mm QFN with exposed thermal pad (L36.6x6C); RoHS-compliant, matte tin e3 termination; MSL3 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 PG | Power-good status output | Open-drain or push-pull signal asserting 100ms after VOUT stabilizes within regulation band - used for system power sequencing and enable coordination. |
| 3 SYNC | Frequency synchronization I/O | Configurable as clock input/output or logic pin - enables phase spreading across multiple ZL2106ALCF units to reduce input ripple current. |
| 13 VSEN | Output voltage feedback sense | High-impedance input (110–200 µA bias) for remote sensing - rejects PCB IR drop to maintain ±1% regulation at load. |
| 20–24 SW | Switching node (5 parallel terminals) | Common connection to internal high-side/low-side MOSFETs - low-inductance routing critical for EMI and efficiency at 6A peak currents. |
| ePad (SGND) | Thermal and analog ground | Exposed paddle tied to SGND - primary thermal path and reference for analog circuitry; must be soldered to solid ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Power Stage | On-die 6A synchronous buck with 60 mΩ/43 mΩ rDS(ON) FETs - eliminates external switches, drivers, and bootstrap diodes, reducing BOM count and layout area. |
| Digital Configuration | Pin-strappable or PMBus-configurable soft-start, sequencing, tracking, and margining - no firmware development required for basic deployment. |
| Snapshot™ Parametric Capture | Real-time capture of VOUT, IOUT, temperature, and fault events into internal NVM - enables post-fault root-cause analysis without host intervention. |
| Dual-Supply Operation | Supports main rail (4.5–14V) or standby rail (3.3V/5V) for configuration during power-down - maintains device accessibility for diagnostics and reprogramming. |
| Digital-DC Bus (DDC) | Open-drain interoperability bus for synchronized operation with other Zilker Labs devices - simplifies multi-rail timing alignment and fault spreading. |
Applications
| Telecom Line Cards | Industrial PLC Power Modules |
|---|---|
Use Scenario: Regulating 3.3V/6A for FPGA and SerDes on carrier-grade line cards with strict thermal and reliability requirements. IC Role / Device Role / Timing Role: Primary POL regulator with PMBus telemetry and thermal shutdown for field-deployed equipment. Use Value: ±1% output accuracy and 125°C junction rating ensure stable operation under sustained load and elevated ambient temperatures. |
Use Scenario: Supplying 1.8V/6A to programmable logic controllers in factory automation cabinets with variable ambient conditions. IC Role / Device Role / Timing Role: Digitally configurable buck converter supporting voltage margining and sequencing across multiple I/O modules. Use Value: Pin-strapped tracking and margining allow safe validation of voltage tolerance margins without hardware changes. |
| Network Switch ASIC Supplies | Test Equipment Power Rails |
Use Scenario: Delivering tightly regulated 0.85V/6A to high-performance switch ASICs with dynamic load transients. IC Role / Device Role / Timing Role: High-bandwidth POL regulator with fast OVP/UVLO response (16 µs) and current limiting. Use Value: Integrated current sensing and 9A peak current limit protect ASICs during short-circuit or startup faults. |
Use Scenario: Providing programmable 1.2V–5.0V outputs in automated test equipment requiring calibration traceability and remote monitoring. IC Role / Device Role / Timing Role: Digitally managed power source with Snapshot™ capture and NVM storage for audit-ready operational logs. Use Value: PMBus command set enables full readback of output voltage, temperature, and fault history via host controller. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down DC/DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP8770GQ-Z | 6A, 4.5–18V input, no PMBus, analog-only configuration; lacks NVM, tracking, and Snapshot™ | Suitable for cost-sensitive, fixed-function POL where digital telemetry is unnecessary | Select when digital configurability and fault logging are not required; verify thermal performance at 6A in same footprint. |
| TPS546D24RQFR | 6A, 4.5–16V input, PMBus v1.3, higher quiescent current (35mA vs 20mA), no internal bootstrap diode | Better suited for high-reliability data center supplies requiring extended PMBus command coverage | Prefer when full PMBus v1.3 compliance and enhanced telemetry resolution are mandatory; requires external bootstrap diode. |
Compared with MP8770GQ-Z and TPS546D24RQFR, the ZL2106ALCF uniquely combines integrated bootstrap diode, dual-supply operation (3.3V/5V standby), and Snapshot™ parametric capture - making it optimal for field-serviceable telecom and industrial systems requiring post-fault diagnostics and flexible configuration without host dependency.
Availability
ZL2106ALCF is available at Aetrix Electronics and suitable for telecom line cards, industrial PLCs, and network switch ASIC supplies requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ZL2106ALCF 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
Intersil (acquired by Renesas Electronics in 2017) is a semiconductor leader specializing in high-performance analog and power management ICs for demanding industrial, telecom, and computing applications.
The ZL2106ALCF belongs to the Zilker Labs Digital-DC product line, designed specifically for digitally manageable, high-current point-of-load conversion in space-constrained systems requiring zero-software configuration and robust fault handling.
FAQ
What is the maximum continuous output current supported by the ZL2106ALCF?
The ZL2106ALCF supports 6A continuous RMS output current using its integrated synchronous MOSFETs. This rating is validated across the full operating temperature range (-40°C to +85°C ambient) and input voltage range (4.5V to 14V), with thermal derating applied above +85°C ambient per the dissipation limits table in the FN6852 datasheet. Peak switch node current capability is 9A.
Does the ZL2106ALCF require external components for bootstrap operation?
No, the ZL2106ALCF integrates an internal Schottky bootstrap diode, eliminating the need for an external discrete diode on the BST pin. This reduces BOM count and improves reliability in high-volume manufacturing. The BST pin still requires a 10nF–22nF ceramic capacitor to SW for proper high-side driver operation, as specified in the recommended application circuit.
Can the ZL2106ALCF operate from a 3.3V input supply?
Yes, the ZL2106ALCF supports dual-supply operation: it can be powered from a main rail (4.5V–14V) or a standby rail (3.3V or 5V) for configuration and diagnostics when the main power is off. In 3.3V standby mode, PMBus communication, NVM access, and Snapshot™ capture remain functional - enabling pre-power-up setup and post-fault analysis.
How does the ZL2106ALCF implement voltage tracking?
The ZL2106ALCF uses the VTRK pin to monitor an external reference voltage and dynamically adjust its output to match that voltage within ±100mV tracking error and ±1% regulation accuracy. Tracking is enabled via the CFG pin or PMBus command, and ramp rate is controlled by the SS pin or register setting - allowing coordinated startup/shutdown with companion rails like DDR VTT or I/O supplies.
Is the ZL2106ALCF pin-compatible with other members of the ZL2106 family?
Yes, all ZL2106 variants-including ZL2106ALCF, ZL2106ALCFT, and ZL2106ALCFTK-share identical 36-lead 6mm×6mm QFN packaging, pinout, and electrical specifications. Differences are limited to tape-and-reel packaging (TK suffix) and temperature screening (standard -40°C to +85°C grade), with no functional or layout impact for board design reuse.
ZL2106ALCF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 36-VFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Programmable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5V
- Current - Output:
- 6A
- Frequency - Switching:
- 200kHz ~ 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 36-QFN (6x6)
ZL2106ALCF FAQ
1.How can I place an order for ZL2106ALCF through Aetrix?
Please submit a Request for Quotation (RFQ) for ZL2106ALCF 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 ZL2106ALCF reliable?
The price and inventory of ZL2106ALCF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZL2106ALCF is usually 5 days.
3.What payment methods are accepted for ZL2106ALCF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZL2106ALCF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZL2106ALCF?
ZL2106ALCF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZL2106ALCF 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 ZL2106ALCF?
For technical support, including ZL2106ALCF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZL2106ALCF requirements.
6.How does Aetrix verify that ZL2106ALCF is sourced from the original manufacturer or authorized distributors?
All ZL2106ALCF 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 ZL2106ALCF meets industry standards.
7.What is the process for return or replacement of ZL2106ALCF?
All ZL2106ALCF units undergo pre-shipment inspection (PSI). If there is an issue with ZL2106ALCF, 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 ZL2106ALCF part is unused and in its original packaging.
Return procedure for ZL2106ALCF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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