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PEF 4268 F V1.2

The Infineon Technologies PEF 4268 F V1.2 is a Subscriber Line Interface Circuit (SLIC) IC with an integrated DC/DC converter. It operates within a 4.75V to 5.25V supply range and a temperature range of -40°C to 85°C.

✓ Total Stock: 950 pcs

$ Price Range: $1.26

PEF 4268 F V1.2 Available from 2 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
PROSOFT ELECTRONICS ✓ Non-Authorised Inventory information	750 pcs On Request	750 pcs	On Request	1	On Request	On Request	11+	On Request	On Request
Smaxon Electronics ✓ Non-Authorised Inventory information	200 pcs On Request	200 pcs	On Request	1	On Request	On Request	1004+	On Request	On Request

PEF 4268 F V1.2 Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	Telecom
Manufacturer Name	Infineon Technologies
Function	Subscriber Line Interface Concept (SLIC)
Mounting Type	Surface Mount
Number of Circuits	1
Operating Temperature	-40°C ~ 85°C
Supplier Device Package	P-TQFP-48-1
Voltage	4.75V ~ 5.25V

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PEF 4268 F V1.2 Description

Short technical summary and product information.

The Infineon Technologies PEF 4268 F V1.2 is a ringing SLIC (Subscriber Line Interface Circuit) with an integrated DC/DC converter, designed for cost-optimized CPE applications. It requires a single unregulated power supply voltage between 9V and 40V, with all other POTS supply voltages generated internally by the on-chip DC/DC converter.

Key features include a patented ring mode for significant power reduction, a DC/DC output voltage up to -150V, and ringing capability up to 85 Vrms sinusoidal. The device supports a fully programmable DC feed characteristic and sensing of transversal line currents. It is backward compatible with standard Infineon Codec-SLIC interfaces.

This SLIC IC is housed in a 48-TQFP surface mount package, minimizing external component count for high board density designs. It is suitable for applications such as xDSL or ISDN CPEs, Analog Telephone Adapters (ATA), and VoIP gateways when combined with appropriate codecs or voice processors.

The operating temperature range is -40°C to 85°C, and it requires a supply voltage between 4.75V and 5.25V.

PEF 4268 F V1.2 Quick Information

Product Type: SLIC IC

Canonical Name: PEF 4268 F V1.2 Ringing SLIC with Integrated DC/DC Converter

Subcategory: Telecom Interface

PEF 4268 F V1.2 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

PEF 4268 F V1.2 Estimated Pricing

Qty	Low	High
1+	$1.26	$1.26

Estimated market price range - modelled values for guidance only, not live distributor offers.

PEF 4268 F V1.2 Features

Integrated DC/DC converter for POTS voltages.
Patented ring mode for power reduction.
Up to -150V DC/DC output voltage.
Up to 85 Vrms sinusoidal ringing.
Surface mount 48-TQFP package.

PEF 4268 F V1.2 Applications

Suitable for CPE applications.
Used in xDSL and ISDN CPEs.
Ideal for Analog Telephone Adapters.
Applicable for VoIP gateways.

PEF 4268 F V1.2 FAQs

7 frequently asked questions generated from this part’s specifications.

What is the operating voltage for the PEF 4268 F V1.2?

The operating voltage for the PEF 4268 F V1.2 is between 4.75V and 5.25V.

What is the operating temperature range of the PEF 4268 F V1.2?

The operating temperature range is -40°C to 85°C.

What package type is the PEF 4268 F V1.2 available in?

The PEF 4268 F V1.2 is available in a 48-TQFP package.

What is the RoHS status of the PEF 4268 F V1.2?

The RoHS status is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for this part?

The Moisture Sensitivity Level (MSL) is 1 Unlimited.

What is the function of the PEF 4268 F V1.2?

The function is Subscriber Line Interface Concept (SLIC).

What is the maximum DC/DC output voltage?

The maximum DC/DC output voltage is -150 V.