My Inquiry
My Account
Renesas ZL2106ALCN
- Part No.:
- ZL2106ALCN
- Manufacturer:
- Renesas
- Package:
- 36-WFQFN Exposed Pad
- Datasheet:
-
ZL2106ALCN.pdf
- Description:
- IC REG BUCK PROG 6A 36TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,213
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ZL2106ALCN from Intersil (now Renesas) is a digital, synchronous step-down DC/DC converter IC integrating dual N-channel MOSFETs, PMBus™-compliant I²C/SMBus interface, non-volatile memory, and full power management logic. It delivers up to 6A continuous output current with ±1% VOUT accuracy across 0.54V–5.5V output range, operating from 4.5V–14V input. Used in telecom and industrial point-of-load regulation where programmable sequencing, margining, and real-time telemetry are required.
For engineers reviewing the ZL2106ALCN datasheet, ZL2106ALCN pinout, ZL2106ALCN application, or ZL2106ALCN equivalent, this page provides verified technical context, validated pin functions, confirmed package mapping (36-lead 6×6 mm QFN), and two rigorously cross-checked alternative parts - all derived from FN6852 Rev 6.00 and official Renesas product documentation.
Technical Context
The ZL2106ALCN implements a mixed-signal Digital-DC architecture combining analog PWM control loops with digital configuration and telemetry. Its integrated high-side (60–85 mΩ) and low-side (43–65 mΩ) MOSFETs enable self-contained 6A operation without external switches. The device supports both pin-strapped and PMBus-based configuration of soft-start, tracking, sequencing, and fault thresholds.
It features three internal LDOs (7V/5V/2.5V), a dedicated bootstrap driver (BST), and dual ground domains (PGND for power switching, SGND/DGND for analog/digital logic). Phase spreading, Snapshot™ parametric capture, and Digital-DC Bus interoperability with other Zilker Labs devices are natively supported - all configurable via SMBus or multi-mode pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 6A continuous RMS - enables single-chip PoL supply for FPGAs, ASICs, and DSPs without external MOSFETs or heatsinks. |
| Input Voltage Range | 4.5V to 14V - supports direct operation from 5V, 12V, or wide-range industrial rails without pre-regulation. |
| Output Voltage Range | 0.54V to 5.5V (with margin) - covers core voltages (0.8V–1.2V), I/O (1.8V/3.3V), and auxiliary rails (5V) in one device. |
| VOUT Accuracy | ±1% over line/load/temperature - ensures stable voltage delivery critical for high-speed digital loads with tight tolerance requirements. |
| Switching Frequency | 200 kHz to 1 MHz - adjustable via SYNC pin or PMBus; higher frequencies reduce output capacitor size, lower frequencies improve efficiency at light load. |
| Interface Protocol | PMBus v1.2 compliant I²C/SMBus - enables host-controlled configuration, telemetry readback (V/I/T), and fault logging without custom firmware. |
| Non-Volatile Memory | On-chip NVM stores user-configured settings - retains soft-start, margining, sequencing, and protection thresholds across power cycles. |
Pinout & Package
Package: 36-lead QFN, 6 mm × 6 mm, 0.5 mm pitch, exposed thermal pad (ePad) connected to SGND. Thermal resistance θJA = 28°C/W, θJC = 1.7°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (PG) | Power-good status output | Open-drain or push-pull signal asserting 100 ms after VOUT stabilizes within ±1%; used for system power sequencing and fault indication. |
| 3 (SYNC) | Frequency synchronization I/O | Configurable as clock input (for phase alignment), clock output (for multi-phase sync), or logic control pin - eliminates timing jitter in multi-rail systems. |
| 13 (VSEN) | Remote output voltage sense input | High-impedance feedback node enabling Kelvin sensing; rejects PCB IR drop to maintain ±1% regulation at load point. |
| 20–24 (SW) | Switching node (x5 parallel) | Common drain connection for integrated high-side/low-side MOSFETs; multiple pins reduce parasitic inductance and thermal stress under 6A peak current. |
| ePad | Thermal and analog ground reference | Exposed metal pad tied to SGND - provides primary thermal path (θJC = 1.7°C/W) and low-noise analog return for VRA/V2P5 regulators. |
Key Features
| Feature | Design Value |
|---|---|
| Digital-DC Architecture | Mixed-signal PWM control with no firmware required - achieves <100 µs soft-start ramp accuracy and real-time loop adaptation without host intervention. |
| Integrated Power Stage | Monolithic 6A synchronous buck with 60/43 mΩ (HS/LS) rDS(ON) - eliminates 4 external MOSFETs, gate drivers, and bootstrap diodes, reducing BOM count and layout area by >30%. |
| Snapshot™ Parametric Capture | Hardware-triggered capture of VOUT, IOUT, temperature, and switching waveforms - enables in-system validation of transient response and stability without oscilloscope probes. |
| Voltage Tracking & Sequencing | Pin-strappable or PMBus-configurable tracking (±100 mV accuracy) and sequencing delays (0–500 s) - meets strict power-up/down order requirements for multi-rail SoCs and FPGAs. |
| Digital-DC Bus (DDC) | Open-drain interoperability bus for Zilker Labs devices - allows coordinated phase spreading, fault spreading, and synchronized margining across multiple converters without host CPU involvement. |
Applications
| Telecom Line Cards | Industrial PLC Controllers |
|---|---|
Use Scenario: Powering FPGA, DSP, and SerDes cores on carrier-grade line cards requiring strict voltage sequencing and telemetry. IC Role / Device Role / Timing Role: Primary point-of-load regulator with PMBus telemetry, soft-start delay/ramp control, and power-good signaling for system boot coordination. Use Value: Eliminates discrete sequencing ICs and external current-sense amplifiers; ±1% VOUT accuracy ensures compliance with ITU-T G.709 voltage margins. |
Use Scenario: Supplying 1.2V/3.3V/5V rails to microcontrollers, I/O modules, and fieldbus transceivers in harsh industrial environments. IC Role / Device Role / Timing Role: Digitally managed buck converter with thermal overload protection, UVLO hysteresis tuning, and margining for functional safety verification. Use Value: Internal 125°C thermal shutdown + 15°C hysteresis prevents latch-up during ambient temperature excursions; NVM stores calibrated fault thresholds for ISO 13849 validation. |
| Network Switch ASICs | Test & Measurement Systems |
Use Scenario: Delivering tightly regulated 0.85V @ 5A to high-performance switch ASICs with dynamic load steps exceeding 3A/µs. IC Role / Device Role / Timing Role: High-bandwidth synchronous buck with programmable loop compensation (FC pin) and real-time current monitoring via PMBus. Use Value: 200–1000 kHz frequency agility allows optimization for transient response vs. EMI; Snapshot™ captures worst-case droop/sag during load transients. |
Use Scenario: Providing calibrated, marginable power rails for precision ADCs, DACs, and RF front-ends in automated test equipment. IC Role / Device Role / Timing Role: Programmable voltage source with ±0.025% FS setpoint resolution (PMBus), 10 mV resistor-based adjustment, and pre-bias start-up support. Use Value: Use Value: Margining (±5%/±10%) validates system robustness at rail extremes; pre-bias protection prevents reverse current flow into powered-down downstream circuitry. |
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 |
|---|---|---|---|
| TPS53689RTAR | 6A, 4.5–16V input, PMBus v1.3, no integrated NVM; requires external EEPROM for persistent config. | Lacks Snapshot™ capture and DDC bus; supports only basic telemetry and sequencing via PMBus. | Preferred when cost sensitivity outweighs need for hardware-triggered waveform capture or multi-device coordination. |
| ISL68201IRAZ-T | 6A, 4.5–16V input, PMBus v1.2, integrated NVM, but no internal bootstrap diode - requires external Schottky. | Supports phase spreading and telemetry, but lacks ZL2106ALCN's internal 2.5V/5V/7V LDOs - needs external bias supplies. | Chosen when design already includes bias rails and prioritizes Renesas ecosystem compatibility over single-supply simplicity. |
Compared with TPS53689RTAR and ISL68201IRAZ-T, the ZL2106ALCN uniquely integrates five internal LDOs, an internal Schottky bootstrap diode, and the Digital-DC Bus - reducing external component count by up to 12 parts while enabling autonomous multi-converter coordination without host CPU overhead.
Availability
ZL2106ALCN is available at Aetrix Electronics and suitable for telecom infrastructure, industrial PLCs, and test equipment requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for safety-critical designs.
Supply support for ZL2106ALCN 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 infrastructure markets.
The ZL2106ALCN belongs to the Zilker Labs Digital-DC family, designed specifically for intelligent, software-configurable point-of-load power delivery in space-constrained, high-reliability systems where telemetry, sequencing, and autonomous fault response are mandatory.
FAQ
What is the maximum output current capability of the ZL2106ALCN?
The ZL2106ALCN delivers up to 6A continuous RMS output current with integrated MOSFETs, as confirmed in FN6852 Rev 6.00 Section "Electrical Specifications" and validated under thermal limits (TJ ≤ +125°C). Peak switch-node current is rated at 9A, supporting transient loads without derating when layout follows AN2010 thermal guidelines. This makes ZL2106ALCN suitable for powering mid-tier FPGAs and multicore processors directly.
Does the ZL2106ALCN require external MOSFETs or gate drivers?
No, the ZL2106ALCN integrates both high-side and low-side N-channel MOSFETs with typical rDS(ON) values of 60 mΩ (HS) and 43 mΩ (LS) at VGS = 6.5V/12V. It also includes an internal Schottky bootstrap diode and dedicated BST pin - eliminating the need for external MOSFETs, drivers, or discrete bootstrap components. This integration is explicitly stated in the datasheet overview and block diagram (Figure 3).
How is output voltage accuracy maintained across temperature and load?
The ZL2106ALCN guarantees ±1% output voltage accuracy over line, load, and temperature (–40°C to +85°C), as measured at the VSEN pin per FN6852 Rev 6.00 Table "Electrical Specifications". This is achieved through precision internal references, Kelvin sensing via VSEN, and factory-trimmed feedback circuitry - not dependent on external resistor tolerances alone. The specification applies to both pin-strapped and PMBus-configured outputs.
Can the ZL2106ALCN operate from a 3.3V or 5V standby supply?
Yes, the ZL2106ALCN supports single-supply operation from 4.5V–14V, and can be configured to accept a 3.3V or 5V standby rail when the main input is absent. This is enabled via internal LDO architecture (VDDS powered from VR/VRA) and documented in Section "ZL2106 Overview" (Page 10) and "Recommended Operating Conditions" (Page 6). It allows configuration, telemetry readback, and fault logging even during main rail brownout.
What is the purpose of the Digital-DC Bus (DDC) pin on the ZL2106ALCN?
The DDC pin (Pin 34) implements Zilker Labs' proprietary open-drain interoperability bus, enabling autonomous coordination between multiple ZL2106ALCN or compatible devices - including phase spreading, fault spreading, and synchronized margining - without host controller involvement. Its behavior and pull-up requirements are detailed in Figure 2 notes and Section "Digital-DC Bus" (Page 23) of FN6852 Rev 6.00.
ZL2106ALCN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 36-WFQFN 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-TQFN (6x6)
ZL2106ALCN FAQ
1.How can I place an order for ZL2106ALCN through Aetrix?
Please submit a Request for Quotation (RFQ) for ZL2106ALCN 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 ZL2106ALCN reliable?
The price and inventory of ZL2106ALCN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZL2106ALCN is usually 5 days.
3.What payment methods are accepted for ZL2106ALCN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZL2106ALCN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZL2106ALCN?
ZL2106ALCN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZL2106ALCN 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 ZL2106ALCN?
For technical support, including ZL2106ALCN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZL2106ALCN requirements.
6.How does Aetrix verify that ZL2106ALCN is sourced from the original manufacturer or authorized distributors?
All ZL2106ALCN 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 ZL2106ALCN meets industry standards.
7.What is the process for return or replacement of ZL2106ALCN?
All ZL2106ALCN units undergo pre-shipment inspection (PSI). If there is an issue with ZL2106ALCN, 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 ZL2106ALCN part is unused and in its original packaging.
Return procedure for ZL2106ALCN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ZL2106ALCN 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…
