Diodes Incorporated ZXRE060AFT4-7
- Part No.:
- ZXRE060AFT4-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Voltage Reference
- Package:
- 6-XFDFN Exposed Pad
- Datasheet:
-
ZXRE060AFT4-7.pdf
- Description:
- IC VREF SHUNT ADJ 0.5% 6DFN
- Quantity:
- Payment:

- Shipping:

Inventory:4,265
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Product details
Overview
ZXRE060AFT4-7 from Diodes Incorporated is a 5-terminal adjustable precision shunt regulator with 0.6V feedback reference voltage, ±0.5% initial tolerance at +25°C, and operation across –40°C to +125°C. It features an open-collector output (0.2V–18V), separate IN/OUT pins enabling low-dropout linear regulator topologies, and supports isolated DC-DC converter feedback loops using optocouplers - ideal for microprocessor core voltage point-of-load regulation.
For engineers reviewing the ZXRE060AFT4-7 datasheet, ZXRE060AFT4-7 pinout, ZXRE060AFT4-7 application, or ZXRE060AFT4-7 equivalent, key selection considerations include its 0.6V VFB accuracy over temperature, <12mV total drift from –40°C to +125°C, 15mA max output sink current, and compatibility with DFN1520H4-6 package layout constraints in space-constrained POL designs.
Technical Context
The ZXRE060AFT4-7 implements a high-transconductance (5000 mA/V) amplifier comparing FB voltage to an internal 0.6V bandgap reference. Its architecture separates power ground (PGND) and analog ground (GND), enabling precise regulation of sub-1V rails while isolating noise-sensitive reference circuitry from high-current paths.
It operates as a two-terminal shunt regulator when configured with external resistive dividers, but uniquely supports three-terminal series LDO configurations via external pass transistor control. The open-collector OUT pin allows operation down to 0.2V, supporting auxiliary-rail-powered feedback in systems where master rail voltage exceeds VIN capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VFB | 0.6V nominal; enables regulation of 0.6V+ output rails with external resistor divider - critical for modern CPU/DSP core voltages. |
| VFB Tolerance | ±0.5% at +25°C (ZXRE060A grade); ensures tight output voltage accuracy without trimming in production. |
| Temp Drift | <12mV (–40°C to +125°C); maintains stable regulation across automotive and industrial ambient extremes. |
| IOUT Max | 15mA sink capability; sufficient to drive optocoupler LEDs or bias external pass transistors in LDO designs. |
| VOUT Range | 0.2V to 18V; supports low-voltage isolated feedback and high-side sensing in auxiliary-powered control schemes. |
| PSRR | >45dB at 300kHz; rejects high-frequency noise on input supply, improving stability in switching regulator feedback paths. |
| Package | DFN1520H4-6 (1.5mm × 2.0mm, 0.4mm pitch); ultra-compact footprint for dense POL converter layouts. |
Pinout & Package
Package: DFN1520H4-6 - 6-pin, 1.5mm × 2.0mm, exposed thermal pad (floating or connected to GND), 0.4mm pitch, low-profile (0.55mm height).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (PGND) | Power Ground | Emitter return path for output transistor; must be tied to system PGND and analog GND for stable operation. |
| 2 (N/C) | No Connection | Internally unconnected; leave floating - no routing or soldering required. |
| 3 (OUT) | Open-Collector Output | Sinks up to 15mA; connects to cathode of optocoupler LED or base/gate of external pass device. |
| 4 (FB) | Feedback Input | High-impedance node referenced to 0.6V; connects to voltage divider tap for output regulation setpoint. |
| 5 (GND) | Analog Ground | Reference and amplifier ground return; tie directly to PGND to minimize offset errors. |
| 6 (IN) | Supply Input | Powers internal circuitry; requires local 0.1µF ceramic capacitor to GND for high-frequency decoupling. |
Key Features
| Feature | Design Value |
|---|---|
| 0.6V Reference Voltage | Enables direct regulation of sub-1V processor core rails without level-shifting circuitry. |
| Separate PGND/GND Pins | Reduces ground bounce and reference error in high-current POL applications with shared PCB ground planes. |
| 0.2V–18V Output Sink Range | Permits use with low-voltage optocouplers (e.g., 0.2V forward drop) and high-side sensing in >12V systems. |
| 600kHz Unity-Gain Bandwidth | Supports fast transient response in digitally controlled DC-DC converters with active compensation. |
| Lead-Free & Halogen-Free | Meets RoHS 3 (2015/863/EU) and Diodes' "Green" standard (<900ppm Br/Cl, <1000ppm Sb). |
Applications
| Isolated DC-DC Converters | Core Voltage POL Regulators |
|---|---|
|
Use Scenario: Secondary-side feedback in flyback or forward converters with optocoupler isolation. IC Role / Device Role / Timing Role: Shunt regulator providing precise 0.6V reference to control optocoupler LED current and regulate primary-side controller. Use Value: Enables accurate 0.6V–1.2V output regulation with <12mV drift over –40°C to +125°C, eliminating need for external trimming. |
Use Scenario: Point-of-load regulation for FPGA, ASIC, or DSP core supplies requiring <1V output. IC Role / Device Role / Timing Role: Adjustable shunt reference setting feedback node for synchronous buck controller or external LDO pass element. Use Value: Direct 0.6V VFB eliminates level-shifters and reduces component count versus TLV431-based solutions. |
| Low-Dropout Linear Regulators | Adjustable Voltage References |
|
Use Scenario: Three-terminal series LDO using external PNP or PMOS pass transistor. IC Role / Device Role / Timing Role: Precision reference and error amplifier driving pass device base/gate to regulate output voltage. Use Value: Separate IN/OUT pins allow powering from auxiliary rail while regulating master rail below VIN minimum (e.g., 0.8V out from 3.3V aux). |
Use Scenario: Programmable reference source for ADCs, DACs, or comparator thresholds. IC Role / Device Role / Timing Role: High-stability 0.6V reference scaled via resistor network to generate custom reference voltages. Use Value: ±0.5% initial tolerance and <6mV drift over 0°C–85°C ensure repeatable analog measurement accuracy without calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar adjustable shunt regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV431AIDBVR | Higher 1.24V reference; ±0.5% tolerance; 100µA max IK; SOT23-3 package (3-pin). | Lacks separate IN/OUT pins; cannot support true low-dropout series LDO or 0.2V–0.6V output regulation. | Select when 1.24V reference suffices and board space favors 3-pin SOT23-3 over 6-pin DFN. |
| ZXRE160FTA-7 | 1.6V reference; same package and pinout; ±0.5% tolerance; optimized for higher-voltage rails. | Not suitable for sub-1V regulation; used where 1.6V+ reference improves noise immunity in noisy environments. | Choose for 1.6V–5V POL applications needing identical DFN1520H4-6 footprint and thermal performance. |
Compared with TLV431AIDBVR and ZXRE160FTA-7, the ZXRE060AFT4-7 uniquely enables 0.6V regulation and true low-dropout operation via separated IN/OUT pins - essential for next-gen sub-1V core supplies where reference voltage headroom is constrained.
Availability
ZXRE060AFT4-7 is available at Aetrix Electronics and suitable for isolated DC-DC converters, microprocessor core voltage POL regulators, and low-dropout linear regulator designs requiring stable component supply and long-term manufacturability.
Supply support for ZXRE060AFT4-7 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for industrial, computing, and communications markets.
The ZXRE series targets precision voltage regulation in space-constrained, thermally demanding applications - specifically engineered for isolated and low-voltage point-of-load power conversion where traditional shunt references fall short.
FAQ
What is the minimum operating input voltage for ZXRE060AFT4-7?
The ZXRE060AFT4-7 requires a minimum IN voltage of 2.0V at temperatures from 0°C to +125°C, and 2.2V at –40°C to 0°C. This ensures proper biasing of the internal amplifier and reference circuitry while maintaining regulation accuracy across the full temperature range.
Can ZXRE060AFT4-7 replace TL432 or TLV431 in existing designs?
Only in TSOT23-5 or SC70-5 packages: ZXRE060ET5/HT5 variants match TL432/TLV431 pinouts (OUT=Cathode, FB=Ref, GND=Anode). The DFN1520H4-6 variant (ZXRE060AFT4-7) has different pinout and 6 pins - not a drop-in replacement without PCB redesign.
How does the N/C pin (Pin 2) affect layout or thermal performance?
Pin 2 is internally unconnected and must remain floating - no trace, pad, or solder connection is required. Leaving it unconnected avoids parasitic coupling and ensures optimal thermal resistance from die to exposed pad, preserving the DFN1520H4-6's 250°C/W θJA rating.
What capacitor values are recommended for stability in ZXRE060AFT4-7 applications?
A 0.1µF ceramic capacitor is mandatory between IN and GND. For feedback loop stability, a compensation capacitor C2 (0.1µF–10µF) is required between OUT and GND; value depends on R1/R2 divider ratio and target phase margin - Diodes AN63 recommends ≥1ms time constant (C2 × R3 > 1ms × R2/(R1+R2)).
ZXRE060AFT4-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 6-XFDFN Exposed Pad
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Reference Type:
- Shunt
- Output Type:
- Adjustable
- Voltage - Output (Min/Fixed):
- 0.2V
- Voltage - Output (Max):
- 18 V
- Current - Output:
- 15 mA
- Tolerance:
- ±0.5%
- Temperature Coefficient:
- -
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 2V ~ 18V
- Current - Supply:
- 1.5mA
- Current - Cathode:
- 300 µA
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DFN1520H4
ZXRE060AFT4-7 FAQ
1.How can I place an order for ZXRE060AFT4-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ZXRE060AFT4-7 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 ZXRE060AFT4-7 reliable?
The price and inventory of ZXRE060AFT4-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXRE060AFT4-7 is usually 5 days.
3.What payment methods are accepted for ZXRE060AFT4-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXRE060AFT4-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZXRE060AFT4-7?
ZXRE060AFT4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZXRE060AFT4-7 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 ZXRE060AFT4-7?
For technical support, including ZXRE060AFT4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXRE060AFT4-7 requirements.
6.How does Aetrix verify that ZXRE060AFT4-7 is sourced from the original manufacturer or authorized distributors?
All ZXRE060AFT4-7 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 ZXRE060AFT4-7 meets industry standards.
7.What is the process for return or replacement of ZXRE060AFT4-7?
All ZXRE060AFT4-7 units undergo pre-shipment inspection (PSI). If there is an issue with ZXRE060AFT4-7, 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 ZXRE060AFT4-7 part is unused and in its original packaging.
Return procedure for ZXRE060AFT4-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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