ISL6439EVAL1 [RENESAS]

Name: ISL6439EVAL1
Brand: RENESAS
SKU: ISL6439EVAL1
Availability: InStock

Part No:

ISL6439EVAL1

Category:

Development Tools

Manufacturer:

RENESAS

Description:

Single Sync Buck PWM Controller for Broadband Gateway Applications. The ISL6439 makes easy work out of implementing a complete control and protection scheme for a DC/DC step-down converter.

RoHS Status:

Datasheet:

Stock Status:

Available for RFQ

Pricing:

Request Volume Pricing

Quote Response:

Within 24 Hours

Shipping:

In-stock parts ship in 1–2 business days

Specification

Type

Parameter

Output Voltage

0.8V ~ VIN

Junction Temperature

-40°C ~ +125°C

Operating Temperature

-40°C ~ +85°C

Supply Voltage

3.0V ~ 3.6V

Package

SOIC-14, QFN-16 (5x5 mm)

RoHS Status

RoHS Compliant

Lower Gate Sink Current

2A

Lower Gate Source Current

-1A

Ocset Current Source Commercial Max

22µA

Ocset Current Source Commercial Min

18µA

Ocset Current Source Industrial Max

22µA

Ocset Current Source Industrial Min

16µA

Oscillator Frequency Isl6439

300kHz

Oscillator Frequency Isl6439a

600kHz

Reference Voltage

0.8V

Reference Voltage Tolerance

±1.5%

Soft Start Slew Rate Commercial Max

7.3 ms

Soft Start Slew Rate Commercial Min

6.2 ms

Soft Start Slew Rate Industrial Max

7.6 ms

Soft Start Slew Rate Industrial Min

6.2 ms

Thermal Resistance Qfn Ja

35°C/W

Thermal Resistance Qfn Jc

5°C/W

Thermal Resistance Soic

67°C/W

Upper Gate Sink Current

1A

Upper Gate Source Current

-1A

Vin

5V

Vin Min

3.3V

Products Detail

The ISL6439 provides simple, single feedback loop, voltage-mode control with fast transient response. The output voltage can be precisely regulated to as low as 0.8V, with a maximum tolerance of ±1.5% over temperature and line voltage variations. A fixed frequency oscillator reduces design complexity, while balancing typical application cost and efficiency. The error amplifier features a 15MHz gain-bandwidth product and 6V/μs slew rate which enables high converter bandwidth for fast transient performance. The resulting PWM duty cycles range from 0% to 100%. Protection from overcurrent conditions is provided by monitoring the rDS(ON) of the upper MOSFET to inhibit PWM operation appropriately. This approach simplifies the implementation and improves efficiency by eliminating the need for a current sense resistor.

Key Features

Operates from 3.3V to 5V Input
0.8V to VIN Output Range
Drives N-Channel MOSFETs
Simple Single-Loop Control Design (Voltage-Mode PWM Control)
Fast Transient Response (High-Bandwidth Error Amplifier, Full 0% to 100% Duty Cycle)
Lossless, Programmable Overcurrent Protection (Uses Upper MOSFET’s rDS(on))
Converter can Source and Sink Current
Small Converter Size (Internal Fixed Frequency Oscillator: ISL6439: 300kHz, ISL6439A: 600kHz)
Internal Soft-Start
Package: 14 Pin SOIC or 16 Lead 5x5 QFN
Pb-free (RoHS compliant)

Application scenarios

Cable Modems
Set Top Boxes
DSL Modems
DSP and Core Communications Processor Supplies
Memory Supplies
Personal Computer Peripherals
Industrial Power Supplies
3.3V-Input DC/DC Regulators
Low-Voltage Distributed Power Supplies

Documents

Datasheets:

ISL6439(A)

Product FAQ

1. Is ISL6439EVAL1 available for RFQ?

Yes. ISL6439EVAL1 by RENESAS is available for RFQ. Submit your required quantity and our team will confirm real-time stock, lead time, and volume pricing.

2. Why is there no fixed price for ISL6439EVAL1?

Pricing for ISL6439EVAL1 can vary by order quantity, market availability, date code, packaging, and delivery destination. Request a quote to receive the latest volume pricing.

3. What are the key specifications of ISL6439EVAL1?

ISL6439EVAL1 is a RENESAS Development Tools with Ocset Current Source Commercial Max: 22µA and Ocset Current Source Commercial Min: 18µA. Review the product details or submit an RFQ if you need confirmation before purchase.

4. How fast can I get a quote for ISL6439EVAL1?

Our sales team usually responds within 24 hours after receiving your RFQ. The quote may include stock status, unit price, lead time, shipping options, and available alternatives.

5. How soon can ISL6439EVAL1 be shipped?

If stock is confirmed, in-stock parts can usually ship within 1–2 business days. Final lead time depends on quantity, stock source, and delivery destination.

6. Can you suggest alternatives to ISL6439EVAL1?

Yes. If ISL6439EVAL1 is unavailable, obsolete, or does not meet your required lead time, we can help check similar RENESAS Development Tools parts or compatible alternatives.

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