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Renesas ZL2106ALCFTK
- Part No.:
- ZL2106ALCFTK
- Manufacturer:
- Renesas
- Package:
- 36-VFQFN Exposed Pad
- Datasheet:
-
ZL2106ALCFTK.pdf
- Description:
- IC REG BUCK PROG 6A 36QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,720
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Product details
Overview
ZL2106ALCFTK 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 ZL2106ALCFTK datasheet, ZL2106ALCFTK pinout, ZL2106ALCFTK application, or ZL2106ALCFTK equivalent, this page delivers verified technical context, exact package mapping (36-lead 6mm×6mm QFN), confirmed 6A continuous output capability, ±1% VOUT accuracy, and real-world design implications for distributed power systems requiring dynamic configuration and system-level interoperability via Digital-DC Bus.
Technical Context
The ZL2106ALCFTK implements a mixed-signal PWM control architecture combining analog loop stability with digital configurability-enabling precise regulation without firmware. It integrates dual N-channel MOSFETs (rDS(ON) ≤ 85 mΩ HS / ≤ 65 mΩ LS), internal 7V/5V/2.5V LDOs, and a dedicated bootstrap driver (BST–SW ≤ 8V).
Power management is executed through multi-mode pins (CFG, SS, FC, VTRK, MGN) and PMBus commands, supporting voltage tracking across multiple rails, phase spreading to reduce input ripple, and Snapshot™ parametric capture for transient diagnostics-all while operating from 4.5V–14V input and delivering 0.54V–5.5V output with ±1% accuracy over –40°C to +125°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 6A continuous RMS - supports high-density POL loads without external MOSFETs or heatsinks. |
| Input Voltage Range | 4.5V to 14V - compatible with 5V, 12V, and intermediate industrial bus rails. |
| Output Voltage Range | 0.54V to 5.5V - covers core logic, I/O, and analog supply requirements with margining support. |
| VOUT Accuracy | ±1% over line/load/temperature - ensures stable operation of sensitive ASICs and FPGAs. |
| Switching Frequency | 200 kHz to 1 MHz - adjustable for EMI optimization or efficiency trade-offs in compact layouts. |
| Interface Protocol | PMBus v1.2 compliant - enables standardized telemetry, configuration, and fault logging in multi-rail systems. |
| Package | 36-lead 6mm × 6mm QFN with exposed thermal pad - provides low θJC = 1.7°C/W for thermally constrained PCBs. |
Pinout & Package
Package: 36-lead QFN (6mm × 6mm, 0.5mm pitch), RoHS-compliant, ePad connected to SGND per datasheet Figure 4 and Ordering Information table.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (PG) | Power-good status output | Open-drain or push-pull signal indicating VOUT regulation within ±1% band for 100ms - used for system enable sequencing. |
| 20–24 (SW) | Switching node | Five parallel SW pins reduce trace inductance and thermal resistance - critical for 6A peak current handling and EMI control. |
| 15–19, 25 (PGND) | Power ground return | Six dedicated PGND pins minimize ground bounce and improve MOSFET switching integrity under high di/dt. |
| ePad | Thermal and analog ground | Exposed copper pad tied to SGND - primary thermal path (θJC = 1.7°C/W) and reference for analog sensing (VSEN, VRA). |
| 30 (VDDS) | Digital supply input | Accepts 4.5V–7.5V bias - powers internal digital core and SMBus interface; decoupled externally to SGND. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated synchronous MOSFETs | Eliminates 4 external power components; achieves >90% efficiency at 6A/3.3V (VIN=12V, fSW=200kHz) per Figure 1. |
| Snapshot™ parametric capture | Hardware-triggered capture of VOUT, IOUT, temperature, and fault events - enables root-cause analysis without host intervention. |
| Digital-DC Bus interoperability | Enables synchronized switching and fault spreading across multiple ZL2106ALCFTK devices - reduces input capacitor requirements by up to 40%. |
| Configurable UVLO and OVP | UVLO threshold adjustable from 2.85V–16V; OVP settable from 0%–115% of VOUT - supports custom rail sequencing and brownout recovery. |
| Internal NVM storage | Persists pin-strapped and PMBus-configured settings (VOUT, soft-start, tracking, margins) across power cycles - no external EEPROM required. |
Applications
| Telecom Point-of-Load Regulation | Industrial PLC Power Sequencing |
|---|---|
|
Use Scenario: Regulating 3.3V/6A for FPGA I/O banks and transceivers in 1RU telecom line cards with strict thermal and EMI constraints. IC Role / Device Role / Timing Role: Primary POL regulator with PMBus telemetry, synchronized switching via SYNC pin, and real-time margining during production test. Use Value: ±1% VOUT accuracy ensures signal integrity; integrated MOSFETs reduce board area by 35% vs discrete solutions; Digital-DC Bus enables coordinated phase spreading across 4 rails. |
Use Scenario: Supplying 1.8V/6A to ARM-based controller cores in modular PLC backplanes requiring cold-start capability and watchdog-triggered reconfiguration. IC Role / Device Role / Timing Role: Digitally managed buck converter with sequenced enable (EN), tracking (VTRK), and fault reporting (SALRT) to upstream safety MCU. Use Value: Soft-start delay/ramp programmable via SS pin or PMBus allows precise timing alignment with other rails; internal 2.5V LDO powers digital logic independently of main input. |
| Test Equipment Power Subsystem | 5V/12V Distributed Power System |
|
Use Scenario: Providing calibrated, marginable 5.0V/6A outputs for precision ADC/DAC reference supplies in automated test equipment (ATE) chassis. IC Role / Device Role / Timing Role: Programmable voltage source with ±0.025% FS resolution via PMBus, Snapshot™ capture of load-step transients, and NVM-stored calibration offsets. Use Value: Margining (MGN pin) enables ±5% output adjustment for gain/offset trimming; VSEN feedback accuracy (±1%) meets 16-bit DAC reference stability requirements. |
Use Scenario: Replacing legacy analog DC/DC modules in server midplane power distribution where space, efficiency, and remote monitoring are critical. IC Role / Device Role / Timing Role: Smart POL module with PMBus telemetry (VOUT, IOUT, temp), fault spreading (DDC bus), and thermal overload shutdown (125°C threshold). Use Value: Phase spreading reduces input ripple current by 60%, allowing smaller bulk capacitors; thermal protection hysteresis (15°C) prevents oscillation during sustained overload. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS53679RSLR (TI) | 6A, 4.5V–16V input, PMBus v1.3, 32-pin 5mm×5mm QFN, no internal BST diode - requires external bootstrap diode. | Higher max input voltage; lacks Snapshot™ capture and Digital-DC Bus; supports VR13/IMVP8 protocols. | Choose for VR13-compliant CPU core rails; avoid if Digital-DC Bus synchronization or transient capture is required. |
| ISL91211AIRZ-T7A (Renesas) | 6A, 2.5V–5.5V input, I²C-only (non-PMBus), 32-pin 4mm×4mm QFN, integrated inductor option available. | Optimized for ultra-low-input battery-powered systems; no tracking, margining, or phase spreading support. | Choose for portable/embedded applications with sub-5V inputs; not suitable for 12V telecom or industrial rails. |
Compared with TPS53679RSLR and ISL91211AIRZ-T7A, the ZL2106ALCFTK uniquely combines 12V input compatibility, Digital-DC Bus interoperability, hardware-accelerated Snapshot™ capture, and full PMBus power management-making it optimal for multi-rail telecom and industrial systems requiring coordinated control and diagnostic depth.
Availability
ZL2106ALCFTK is available at Aetrix Electronics and suitable for telecom infrastructure, industrial PLCs, and test equipment requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for ZL2106ALCFTK 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 (formerly Intersil) is a global semiconductor leader specializing in microcontrollers, analog, power, and connectivity solutions for industrial, automotive, and communications markets.
The ZL2106ALCFTK belongs to Renesas' Digital-DC™ product line, designed specifically for intelligent, configurable point-of-load power delivery in high-reliability systems where software-free operation, real-time telemetry, and multi-device coordination are essential.
FAQ
What is the maximum continuous output current supported by the ZL2106ALCFTK?
The ZL2106ALCFTK supports 6A continuous RMS output current, validated across –40°C to +125°C junction temperature with appropriate PCB layout and thermal management. Peak switch-node current capability is 9A, and the device includes cycle-by-cycle current limiting with factory-default 9.0A threshold - configurable via PMBus down to 0.2A for precision current limiting in test scenarios.
Does the ZL2106ALCFTK require external MOSFETs or bootstrap components?
No. The ZL2106ALCFTK integrates both high-side and low-side N-channel MOSFETs with rDS(ON) ≤ 85 mΩ and ≤ 65 mΩ respectively, plus an internal Schottky bootstrap diode - eliminating the need for external MOSFETs, gate drivers, or discrete bootstrap diodes. Only external passive components (inductor, input/output capacitors, compensation network) are required per the typical application circuit on page 3 of FN6852 Rev 6.00.
How is output voltage accuracy maintained across temperature and load for the ZL2106ALCFTK?
The ZL2106ALCFTK achieves ±1% output voltage accuracy over line, load, and temperature (–40°C to +85°C ambient) using a precision internal reference, trimmed VSEN amplifier, and digital compensation algorithms stored in NVM. This specification includes all effects of input variation, load current from 0A to 6A, and junction temperature up to +125°C - verified per Electrical Specifications Table on page 7 of FN6852 Rev 6.00.
Can the ZL2106ALCFTK be configured without a host microcontroller?
Yes. The ZL2106ALCFTK supports full pin-strapped configuration for VOUT setpoint (VSET), soft-start timing (SS), loop compensation (FC), tracking (CFG/VTRK), and margining (MGN). All settings are stored in internal non-volatile memory and persist across power cycles - enabling standalone operation without I²C/SMBus communication or firmware. Host interface is optional for advanced telemetry and runtime reconfiguration.
What thermal performance can be expected from the ZL2106ALCFTK in a standard 4-layer PCB layout?
In a standard 4-layer PCB with 2oz copper, thermal vias under the ePad, and 1in² of 2oz copper pour connected to SGND, the ZL2106ALCFTK achieves θJA ≈ 28°C/W (typical) and θJC = 1.7°C/W. At 6A/3.3V output with VIN=12V and fSW=200kHz, junction temperature rise is ~45°C above ambient - well within the –40°C to +125°C operating range. Thermal derating guidelines are detailed in AN2010 "Thermal and Layout Guidelines for Digital-DC™ Products".
ZL2106ALCFTK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 36-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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)
ZL2106ALCFTK FAQ
1.How can I place an order for ZL2106ALCFTK through Aetrix?
Please submit a Request for Quotation (RFQ) for ZL2106ALCFTK 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 ZL2106ALCFTK reliable?
The price and inventory of ZL2106ALCFTK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZL2106ALCFTK is usually 5 days.
3.What payment methods are accepted for ZL2106ALCFTK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZL2106ALCFTK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZL2106ALCFTK?
ZL2106ALCFTK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZL2106ALCFTK 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 ZL2106ALCFTK?
For technical support, including ZL2106ALCFTK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZL2106ALCFTK requirements.
6.How does Aetrix verify that ZL2106ALCFTK is sourced from the original manufacturer or authorized distributors?
All ZL2106ALCFTK 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 ZL2106ALCFTK meets industry standards.
7.What is the process for return or replacement of ZL2106ALCFTK?
All ZL2106ALCFTK units undergo pre-shipment inspection (PSI). If there is an issue with ZL2106ALCFTK, 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 ZL2106ALCFTK part is unused and in its original packaging.
Return procedure for ZL2106ALCFTK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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