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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Reference

Diodes Incorporated ZXRE160FT4-7

Name: ZXRE160FT4-7
Brand: Diodes Incorporated
SKU: ZXRE160FT4-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ZXRE160FT4-7

Manufacturer:: Diodes Incorporated

Category:: Voltage Reference

Package:: 6-XFDFN Exposed Pad

Datasheet:: ZXRE160FT4-7.pdf

Description:: IC VREF SHUNT ADJ 1% 6DFN

Quantity:: RFQ Add To RFQ list

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Inventory:8,867

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Product details

Overview

ZXRE160FT4-7 from Diodes Incorporated is a 5-terminal adjustable precision shunt regulator with 0.6 V feedback reference voltage, ±0.5% initial tolerance (A-grade), -40°C to +125°C operating range, and open-collector output capable of 0.2 V to 18 V operation - enabling ultra-low-voltage core regulation in microprocessor/DSP/PLD point-of-load converters.

For engineers reviewing the ZXRE160FT4-7 datasheet, ZXRE160FT4-7 pinout, ZXRE160FT4-7 application, or ZXRE160FT4-7 equivalent, this device serves as a low-dropout series regulator enabler, isolated DC-DC feedback controller, and sub-1V shunt reference - with design-critical parameters including FB pin bias current (<−45 nA), dynamic output impedance (0.25 Ω typ), and PSRR (>45 dB at 300 kHz).

Technical Context

The ZXRE160FT4-7 implements a high-transconductance (5000 mA/V) amplifier comparing its 0.6 V internal reference against external feedback, sinking up to 15 mA via an open-collector output. Its separated IN and OUT pins allow auxiliary-rail powering while regulating higher or lower master rails.

It operates across 2 V to 18 V input and 0.2 V to 18 V output ranges, supports closed-loop stability with 0.1 µF–10 µF output capacitance, and delivers <12 mV total temperature drift over −40°C to +125°C - making it suitable for opto-isolated feedback paths and low-voltage LDO topologies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_FB	0.6 V nominal; enables regulation of rails as low as 0.6 V for modern core voltages.
Initial Tolerance	±0.5% at +25°C (ZXRE160A grade); ensures tight output accuracy without trimming.
Temp Drift	<12 mV (−40°C to +125°C); maintains stable reference under wide thermal stress.
I_OUT Max	15 mA; sufficient to drive optocoupler LEDs or base currents in series LDO configurations.
Z_OUT	0.25 Ω typical; minimizes output voltage deviation under load transients.
PSRR	>45 dB at 300 kHz; rejects high-frequency supply noise in noisy POL environments.
I_FB	−45 nA typical; reduces resistor-divider error and enables high-impedance feedback networks.

Pinout & Package

Package: X2-DFN1520-6 (1.5 mm × 2.0 mm, 0.4 mm height, exposed thermal flag). Pin assignments are validated per DS35688 Rev. 2–2, Figure on page 2.

Pin/Terminal	Circuit Role	Design Meaning
PGND (Pin 1)	Power Ground	Emitter return path for output transistor; must be tied to GND for proper current sinking.
N/C (Pin 2)	No Connection	Internally unconnected; leave floating or omit trace - no electrical function.
OUT (Pin 3)	Open-Collector Output	Sinks up to 15 mA; requires external pull-up to regulate; operates down to 0.2 V.
FB (Pin 4)	Feedback Input	Compares against 0.6 V internal reference; bias current ≤ −45 nA enables high-R dividers.
GND (Pin 5)	Analog Ground	Reference and amplifier ground return; tie directly to PGND for minimal offset.
IN (Pin 6)	Supply Input	Provides power to internal circuitry; accepts 2 V–18 V; decouple with 0.1 µF ceramic.

Key Features

Feature	Design Value
0.6 V reference voltage	Enables direct regulation of sub-1V processor cores without level-shifting circuitry.
Separate IN and OUT pins	Allows auxiliary-rail powering while controlling master rail above or below VIN - critical for isolated flyback feedback.
0.2 V–18 V output compliance	Supports low-dropout series LDO designs where output voltage may fall near input rail.
High PSRR (>45 dB @ 300 kHz)	Maintains regulation integrity in switching converter environments with high ripple content.
Exposed thermal flag	Improves thermal resistance in DFN package; enhances power handling in continuous 15 mA operation.

Applications

Isolated DC-DC Converters

Core Voltage POL Converters

Use Scenario: Secondary-side feedback in opto-isolated flyback or forward converters powering FPGAs or ASICs.

IC Role / Device Role / Timing Role: Precision shunt reference driving optocoupler LED; replaces TL431 in sub-1V designs.

Use Value: 0.6 V V_FB enables accurate regulation of 0.6–1.2 V outputs without external resistive scaling errors.

Use Scenario: Point-of-load regulation for ARM Cortex-A series or Xilinx Zynq SoC core supplies.

IC Role / Device Role / Timing Role: Adjustable shunt reference in series-pass LDO topology with external PNP transistor.

Use Value: ±0.5% tolerance and <12 mV temp drift ensure stable core voltage under thermal cycling and load transients.

Low-Voltage LDO Regulators

Shunt-Based Voltage Monitors

Use Scenario: Low-dropout linear regulator for battery-powered IoT sensors requiring 0.8 V output from 1.2 V Li-ion cell.

IC Role / Device Role / Timing Role: Feedback controller for emitter-follower pass element; IN powered from same rail as output.

Use Value: 0.2 V output compliance allows <400 mV dropout - impossible with standard 2.5 V references.

Use Scenario: Overvoltage detection for USB-C PD power delivery negotiation circuits.

IC Role / Device Role / Timing Role: Comparator-mode threshold detector using external resistor divider on FB pin.

Use Value: −45 nA FB bias current minimizes divider error; enables precise 5.1 V or 9.1 V trip points with 1% resistors.

Equivalent & Alternatives

The following parts are listed as comparable options for similar adjustable shunt regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLVH431AIDBZR	2.495 V reference; higher V_REF, no sub-1V capability; 0.5% tolerance; SOT-23-3	Requires resistor scaling for <1V outputs; unsuitable for direct 0.6V core regulation	Select only when ≥2.5V reference suffices and board space favors 3-pin SOT-23
ZXRE060FTA	0.6 V reference but 3-terminal configuration; no separate IN/OUT; max I_OUT = 10 mA	Lacks isolated feedback capability; cannot power from auxiliary rail while regulating master rail	Choose only for cost-sensitive, non-isolated shunt applications with ≤10 mA load

Compared with TLVH431AIDBZR and ZXRE060FTA, the ZXRE160FT4-7 uniquely combines 0.6 V reference, 5-terminal isolation, and 15 mA sink capability - enabling compact, accurate, and thermally robust sub-1V regulation where space, precision, and architectural flexibility are critical.

Availability

ZXRE160FT4-7 is available at Aetrix Electronics and suitable for isolated DC-DC converters, core voltage POL converters, low-voltage LDO regulators, and shunt-based voltage monitors requiring stable component supply across industrial, computing, and embedded power applications.

Supply support for ZXRE160FT4-7 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 consumer markets.

The ZXRE product line delivers enhanced-precision shunt regulators optimized for low-voltage, high-accuracy, and isolated power system feedback - addressing design challenges in next-generation microprocessor core regulation and compact DC-DC conversion.

FAQ

What is the minimum input voltage required for stable operation of ZXRE160FT4-7?

The ZXRE160FT4-7 requires a minimum input voltage of 2.0 V at temperatures from 0°C to +125°C, and 2.2 V at −40°C to 0°C. This ensures proper biasing of the internal amplifier and reference circuitry across its full operating temperature range. Operation below these thresholds risks loss of regulation or increased output drift.

Can ZXRE160FT4-7 be used in a non-isolated series LDO configuration?

Yes - the ZXRE160FT4-7 supports non-isolated series LDO topologies by connecting IN to the unregulated input rail and using OUT to drive the base/gate of an external pass transistor. Its 0.2 V output compliance and 15 mA sink capability enable ultra-low dropout operation, especially with PNP or PMOS pass devices.

How does the exposed thermal flag on the X2-DFN1520-6 package affect thermal performance?

The exposed flag on the ZXRE160FT4-7's DFN package provides a low-thermal-resistance path to the PCB copper pour, reducing junction-to-board thermal resistance. When soldered to ≥1 cm² of 2-oz copper with 4 thermal vias, it lowers θ_JA significantly versus SC70 or TSOT25 - improving reliability under sustained 15 mA load conditions.

Is the N/C pin on ZXRE160FT4-7 electrically isolated or internally tied to another node?

Pin 2 (N/C) is confirmed as unconnected - no internal bond wire or silicon connection exists. It must remain floating or omitted from the PCB layout. Connecting it to any potential (including GND) violates the device's validated pinout and may cause unpredictable behavior or parametric shift.

ZXRE160FT4-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Package/Case:: 6-XFDFN Exposed Pad

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Active

Reference Type:: Shunt

Output Type:: Adjustable

Voltage - Output (Min/Fixed):: 0.6V

Voltage - Output (Max):: 18 V

Current - Output:: 15 mA

Tolerance:: ±1%

Temperature Coefficient:: -

Noise - 0.1Hz to 10Hz:: -

Noise - 10Hz to 10kHz:: -

Voltage - Input:: -

Current - Supply:: -

Current - Cathode:: 1 mA

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: X2-DFN1520-6

ZXRE160FT4-7 FAQ

1.How can I place an order for ZXRE160FT4-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for ZXRE160FT4-7 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 ZXRE160FT4-7 reliable?

The price and inventory of ZXRE160FT4-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXRE160FT4-7 is usually 5 days.

3.What payment methods are accepted for ZXRE160FT4-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXRE160FT4-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ZXRE160FT4-7?

ZXRE160FT4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ZXRE160FT4-7 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 ZXRE160FT4-7?

For technical support, including ZXRE160FT4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXRE160FT4-7 requirements.

6.How does Aetrix verify that ZXRE160FT4-7 is sourced from the original manufacturer or authorized distributors?

All ZXRE160FT4-7 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 ZXRE160FT4-7 meets industry standards.

7.What is the process for return or replacement of ZXRE160FT4-7?

All ZXRE160FT4-7 units undergo pre-shipment inspection (PSI). If there is an issue with ZXRE160FT4-7, 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 ZXRE160FT4-7 part is unused and in its original packaging.

Return procedure for ZXRE160FT4-7:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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