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ACT4501SH-T

Model Number: ACT4501SH

DC-DC Non-Sync Step Down Conve from Qorvo

30 V, 1.25 A CC/CV Step-Down DC/DC Converter

Status: Discontinued | Data Sheet:

| RoHS Compliance: Rohs Compliant

Overview

Qorvo’s ACT4501 is a dedicated cost-effective DC/DC converter for 5 V / 1 A car charger applications with a wide input voltage and high efficiency. The converter operates in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode. ACT4501 provides up to 1.25 A output current at 125 kHz switching frequency.

Active CC is a patent-pending control scheme to achieve high accuracy sensorless constant current control. Active CC eliminates the expensive, high accuracy current sense resistor, making it ideal for battery charging applications and high-brightness LED drivers for architectural lighting.

The product achieves higher efficiency than traditional constant current switching regulators by eliminating the sense resistor and its associated power loss. Protection features include cycle-by-cycle current limit, thermal shutdown, and frequency foldback at short circuit.

ACT4501 is available in a SOP-8 package and requires very few external components for operation.

Key Features

10 to 30 V input voltage
40 V transparent input voltage surge
Up to 1.25 A constant output current
Output voltage up to 12 V
Good EMC performance on single layer PCB
2% feedback voltage accuracy
Up to 90% efficiency
125 kHz switching frequency eases EMI design
Resistor programmable outputs
Cable compensation from 0 to 0.5 Ohm
Patent pending Active CC constant current control
Advanced feature set

Typical Applications

Car Chargers
Rechargeable Portable Devices
General Purpose CC/CV Power Supplies

Part Number: ACT4501SH-T
Manufacturer: Qorvo
Topology: Step-Down
Input Voltage: 10 - 30 V
Max Output Current: 1.25 A
Frequency: 125 kHz
Features: Cable Compensation, Sensorless CC Control
Package Type: SOP-8

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Product may be included on Section 301 Tariff List and subject to applicable tariff charges.

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Product Specifications For ACT4501SH-T DC-DC Non-Sync Step Down Converter

Part Number: ACT4501SH-T Manufacturer: Qorvo Product Description: 30 V, 1.25 A CC/CV Step-Down DC/DC Converter

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Tariff Notice

Product may be included on Section 301 Tariff List and subject to applicable tariff charges.

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ACT4501SH-T

DC-DC Non-Sync Step Down Conve from Qorvo

30 V, 1.25 A CC/CV Step-Down DC/DC Converter

Technical Inquiry Request for ACT4501SH-T DC-DC Non-Sync Step Down Converter

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ACT4501SH-T

DC-DC Non-Sync Step Down Conve from Qorvo

30 V, 1.25 A CC/CV Step-Down DC/DC Converter

Technical Inquiry Request for ACT4501SH-T DC-DC Non-Sync Step Down Converter

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