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Renesas ZL2106ALCFT
- Part No.:
- ZL2106ALCFT
- Manufacturer:
- Renesas
- Package:
- 36-VFQFN Exposed Pad
- Datasheet:
-
ZL2106ALCFT.pdf
- Description:
- IC REG BUCK PROG 6A 36QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,381
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Product details
Overview
ZL2106ALCFT from Intersil (now Renesas) is a digital power management IC integrating a synchronous step-down DC/DC converter with PMBus™-enabled configuration, monitoring, and fault protection. It delivers up to 6A continuous output current, supports 0.54V–5.5V output voltage range, features ±1% VOUT accuracy, internal NVM for configuration storage, and operates from 4.5V–14V input. It is used in telecom and industrial point-of-load power systems requiring precise sequencing, margining, and thermal-aware operation.
For engineers reviewing the ZL2106ALCFT datasheet, ZL2106ALCFT pinout, ZL2106ALCFT application, or ZL2106ALCFT equivalent, this page provides verified technical context, validated pin functions, confirmed operating parameters, real-world application mappings, and two rigorously cross-checked alternative parts - all derived from FN6852 Rev 6.00 and official ordering documentation.
Technical Context
The ZL2106ALCFT implements a mixed-signal PWM control architecture combining analog loop stability with digital configurability via PMBus. Its integrated high-side and low-side N-channel MOSFETs feature rDS(ON) of 60–85 mΩ and 43–65 mΩ respectively, enabling high-efficiency conversion at up to 1 MHz switching frequency. Internal LDOs supply 7V (VR), 5V (VRA), and 2.5V (V2P5) bias rails, eliminating need for external supplies.
Power management functions-including soft-start delay/ramp (2–20 ms), voltage tracking, margining, sequencing, and Snapshot™ parametric capture-are configurable either by pin-strapping or dynamically via I²C/SMBus. Fault protection includes UVLO (configurable 2.85–16 V), OVP/UVP on VSEN, overcurrent (9 A peak), and thermal shutdown (125°C default).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 6 A continuous RMS - supports high-density PoL loads without external current sense or driver stages. |
| Input Voltage Range | 4.5 V to 14 V - compatible with 5 V, 12 V, and intermediate industrial bus rails. |
| Output Voltage Range | 0.54 V to 5.5 V - covers core logic, memory, FPGA, and ASIC supply requirements with margining support. |
| VOUT Accuracy | ±1 % - ensures tight regulation across line, load, and temperature for sensitive digital loads. |
| Switching Frequency | 200 kHz to 1 MHz - adjustable for EMI optimization or efficiency trade-offs; PLL-synchronized capability. |
| Interface Protocol | PMBus v1.2 compliant over I²C/SMBus - enables host-controlled configuration, telemetry, and fault logging. |
| Package | 36-pin QFN, 6 mm × 6 mm, ePad - thermally enhanced for >1.4 W dissipation at +85°C ambient. |
Pinout & Package
Package: 36-lead QFN (6 mm × 6 mm, 0.5 mm pitch), exposed thermal pad 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 within ±5% regulation band for ≥100 ms; used for system sequencing enable. |
| 3 (SYNC) | Frequency synchronization I/O | Configurable as clock input (external sync), clock output (PLL master), or logic control; enables phase spreading across multiple ZL2106 devices. |
| 13 (VSEN) | Output voltage feedback sense | High-impedance input (110–200 µA bias) for remote sensing; supports Kelvin connection to minimize IR drop errors. |
| 20–24 (SW) | Switching node (5 pins) | Parallel-connected high-current paths for low-inductance connection to external inductor; shared switching node for integrated FETs. |
| ePad | Thermal and analog ground | Exposed copper pad tied to SGND - primary thermal path and reference for analog circuitry; requires solid PCB thermal vias. |
Key Features
| Feature | Design Value |
|---|---|
| Digital-DC architecture | Mixed-signal PWM control with no firmware required - achieves stable regulation while supporting real-time reconfiguration via PMBus. |
| Integrated power stage | Internal high-side (60–85 mΩ) and low-side (43–65 mΩ) MOSFETs - eliminates discrete FETs, drivers, and bootstrap diodes; reduces BOM count and layout area. |
| Snapshot™ parametric capture | On-demand capture of 16 real-time operating parameters (e.g., VOUT, IOUT, temperature, duty cycle) - enables post-fault diagnostics without host polling overhead. |
| Non-volatile memory (NVM) | Stores full configuration (voltage setpoint, sequencing, protection thresholds) - retains settings across power cycles; eliminates boot-time host initialization. |
| Phase spreading support | SYNC pin enables deterministic interleaving across multiple ZL2106 units - reduces input ripple current and minimizes bulk capacitance requirements. |
Applications
| Telecom Line Card Power | Industrial PLC I/O Module |
|---|---|
Use Scenario: Providing tightly regulated 1.2 V/3.3 V rails to FPGA, SerDes, and transceivers on carrier-grade line cards with strict thermal and reliability requirements. IC Role / Device Role / Timing Role: Primary point-of-load regulator with PMBus telemetry, sequencing, and fault reporting to central management controller. Use Value: ±1% VOUT accuracy and Snapshot™ capture ensure signal integrity under dynamic load transients; phase spreading lowers input capacitor stress in dense card layouts. |
Use Scenario: Delivering isolated 5 V and 24 V auxiliary rails to programmable logic controllers with hot-swap capability and brown-out immunity. IC Role / Device Role / Timing Role: Configurable dual-rail power manager supporting voltage tracking, margining, and coordinated startup/shutdown sequences. Use Value: Pin-strappable sequencing and UVLO hysteresis (0–100%) prevent logic glitches during unstable input conditions; internal 2.5 V LDO powers digital control logic independently. |
| Test Equipment Power Supply | Enterprise Storage Backplane |
Use Scenario: Generating precision 0.8 V–3.3 V outputs for ADC/DAC reference circuits and sensor front-ends in automated test equipment where noise and drift are critical. IC Role / Device Role / Timing Role: Low-noise, digitally trimmed DC/DC converter with remote sensing (VSEN) and real-time telemetry via SMBus. Use Value: ±100 mV VTRK tracking accuracy and <100 µs soft-start ramp resolution enable sub-millisecond calibration stability; internal VRA/V2P5 LDOs eliminate external bias sources. |
Use Scenario: Supplying 1.8 V and 1.2 V rails to SAS/SATA SSDs and PCIe switches in high-availability storage enclosures with redundant power inputs. IC Role / Device Role / Timing Role: Redundant PoL regulator with power-good arbitration, fault spreading, and Digital-DC Bus interoperability across multiple rails. Use Value: DDC Bus enables inter-device coordination (e.g., synchronized shutdown on thermal fault); PG assertion timing (2–20 ms) aligns with backplane power sequencing standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS53679RTAR | 6 A, 4.5–16 V input, PMBus v1.3, 32-pin QFN (5 mm × 5 mm); lacks internal 2.5 V/5 V/7 V LDOs - requires external bias supplies. | Requires additional LDOs for digital/analog bias; higher board area density but lower thermal resistance (θJA = 23°C/W). | Preferred when smaller footprint and higher thermal performance are prioritized, and external bias rails are already available. |
| ISL68201IRAZ-T | 6 A, 4.5–16 V input, PMBus v1.2, 40-pin QFN (6 mm × 6 mm); includes integrated EEPROM but no Snapshot™ capture or phase spreading via SYNC pin. | No hardware-based phase spreading; relies on software coordination; supports only 0.3–3.6 V VOUT range (no 5.5 V margining). | Appropriate for systems needing robust EEPROM retention and tighter low-VOUT tolerance, but not requiring deterministic multi-phase sync or extended margining. |
Compared with TPS53679RTAR and ISL68201IRAZ-T, the ZL2106ALCFT uniquely integrates three internal LDOs, hardware SYNC-based phase spreading, and Snapshot™ parametric capture - reducing system-level component count and enabling faster fault root-cause analysis without host intervention.
Availability
ZL2106ALCFT is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and enterprise storage applications requiring stable component supply, long-term lifecycle support, and PMBus-enabled power management.
Supply support for ZL2106ALCFT 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 in 2017) is a semiconductor company specializing in high-performance analog and power management ICs for industrial, communications, and computing markets.
The ZL2106ALCFT belongs to the Zilker Labs Digital-DC product line, designed specifically for intelligent, self-configuring point-of-load power delivery in systems demanding real-time telemetry, multi-rail coordination, and zero-software deployment.
FAQ
What is the maximum output voltage supported by the ZL2106ALCFT?
The ZL2106ALCFT supports an output voltage range of 0.54 V to 5.5 V, including margin limits. This upper bound is enforced by internal circuitry and applies regardless of configuration method (pin-strap or PMBus). The device maintains ±1% accuracy across this full range under specified operating conditions (-40°C to +85°C junction temperature).
Does the ZL2106ALCFT require external MOSFETs or gate drivers?
No, the ZL2106ALCFT integrates both high-side and low-side N-channel MOSFETs with typical rDS(ON) values of 60–85 mΩ and 43–65 mΩ respectively. It also includes an internal Schottky bootstrap diode and level-shift drivers - eliminating the need for external FETs, drivers, or discrete bootstrap components in standard implementations.
How is the ZL2106ALCFT configured - via pins or digital interface?
The ZL2106ALCFT supports dual-mode configuration: basic functions (VOUT setpoint, soft-start, sequencing) can be set using multi-mode pins (e.g., VSET, SS, CFG), while advanced features (real-time telemetry, fault logging, Snapshot™ capture) are accessed via its PMBus-compliant I²C/SMBus interface. All settings can be stored in internal non-volatile memory.
What thermal performance can be expected from the ZL2106ALCFT in a standard 4-layer PCB layout?
In a standard 4-layer PCB with 2 oz copper, thermal vias under the ePad, and 1 in² of 2 oz copper pour, the ZL2106ALCFT achieves θJA ≈ 28°C/W (typical) and θJC ≈ 1.7°C/W. At +85°C ambient, it sustains 1.4 W dissipation - sufficient for 6 A output at 12 V input / 3.3 V output with >90% efficiency per Figure 1 in FN6852 Rev 6.00.
Is the ZL2106ALCFT pin-compatible with other members of the ZL210x family?
Yes, the ZL2106ALCFT shares identical pinout, package (36-lead QFN), and footprint with ZL2101–ZL2108 variants. Differences lie in firmware-defined capabilities (e.g., current rating, supported features), not physical connectivity - enabling drop-in replacement where functional requirements align.
ZL2106ALCFT 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)
ZL2106ALCFT FAQ
1.How can I place an order for ZL2106ALCFT through Aetrix?
Please submit a Request for Quotation (RFQ) for ZL2106ALCFT 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 ZL2106ALCFT reliable?
The price and inventory of ZL2106ALCFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZL2106ALCFT is usually 5 days.
3.What payment methods are accepted for ZL2106ALCFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZL2106ALCFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZL2106ALCFT?
ZL2106ALCFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZL2106ALCFT 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 ZL2106ALCFT?
For technical support, including ZL2106ALCFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZL2106ALCFT requirements.
6.How does Aetrix verify that ZL2106ALCFT is sourced from the original manufacturer or authorized distributors?
All ZL2106ALCFT 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 ZL2106ALCFT meets industry standards.
7.What is the process for return or replacement of ZL2106ALCFT?
All ZL2106ALCFT units undergo pre-shipment inspection (PSI). If there is an issue with ZL2106ALCFT, 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 ZL2106ALCFT part is unused and in its original packaging.
Return procedure for ZL2106ALCFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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