UC5603QPTR-UN

$3.44

Description：SCSI TERMINATOR, 9-LINE, 110OHM,
Series：*

SKU:4cff90c60a05 Category: Signal Terminators Brand: Unitrode

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Product introduction

Product Detailed Parameters

Description：SCSI TERMINATOR, 9-LINE, 110OHM,
Series：*
Mfr：Unitrode
Package：Bulk
Type：-
Number of Terminations：-
Voltage - Supply：-
Operating Temperature：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-

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UC5603QPTR-UN

Overview

The UC5603QPTR-UN is a pulse width modulator manufactured by Unitrode. It operates as a switching controller with a maximum switching frequency of 500 kHz and a peak output current capability of 0.5 A. The device utilizes voltage-mode control architecture and is constructed using bipolar technology. It is housed in a plastic leaded chip carrier package with 20 pins, designated as LCC-20 or PQCC20. The component supports an operating temperature range from -40°C to +85°C and is supplied in tape and reel packaging for surface mount applications.

Feature Summary

Voltage-mode regulation for stable power supply control
Integrated high-current push-pull output stage
Built-in oscillator with external timing control

Applications

DC-to-DC converter designs
Isolated power supply architectures
Battery charger systems

Part Context

This component belongs to the UC560x series of regulating pulse width modulators produced by Unitrode, which was later acquired by Texas Instruments. The UC5603 variant specifically provides a fixed frequency operation mode suitable for general-purpose power conversion tasks requiring robust switching performance.

Replacement Considerations

Direct equivalents include the UC2525B series variants such as UC2525BQTR or UC2525BDWTR. These parts share identical pinouts and functional specifications within the same family.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.