ADP2442ACPZ Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
Analog Devices ADP2442ACPZ is a high-voltage synchronous step-down switching regulator capable of delivering 1 A continuous output current from input voltages up to 36 V, with integrated high-side and low-side switches in a compact QFN package. It is designed for industrial 24 V rail power supplies, distributed point-of-load converters, and automotive accessory circuits.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 13
- Lifecycle
- ACTIVE
- Datasheet
- ADP2442ACPZ Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of ADP2442ACPZ?
- Synchronous step-down architecture with 1 A continuous output current rating
- Wide input voltage range up to 36 V, supporting 12 V, 24 V, and nominal 28 V industrial rails
- Integrated high-side and low-side power MOSFETs for reduced external component count
- Adjustable output voltage and programmable switching frequency for optimized efficiency
- Compact QFN package enabling high power density in constrained board areas
- Thermal shutdown and current-limit protection for robust operation in harsh environments
- RoHS-compliant, Pb-free packaging for regulated-market designs
What is ADP2442ACPZ used for?
ADP2442ACPZ is used in industrial automation equipment, 24 V distributed power architectures, and point-of-load converters supplying sub-5 V rails for FPGAs, DSPs, or microcontrollers. Its wide input range also makes it a candidate for automotive accessory rails and ruggedized instrumentation requiring stable output from fluctuating 12 V to 28 V bus voltages.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the ADP2442ACPZ datasheet?
ADP2442ACPZ Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for ADP2442ACPZ?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does ADP2442ACPZ support, and is it compatible with standard 24 V industrial bus voltages?
ADP2442ACPZ accepts input voltages up to 36 V, which comfortably covers the 24 V nominal industrial bus including transients up to 36 V. This makes it directly usable without an input pre-regulator in standard 24 V DIN-rail and automation systems, delivering up to 1 A of regulated output current.
How does the synchronous topology of ADP2442ACPZ improve efficiency compared to a non-synchronous buck converter at 1 A load?
The synchronous design replaces the freewheeling Schottky diode with an integrated low-side MOSFET, reducing conduction losses associated with the diode's forward voltage drop of approximately 0.3 V to 0.5 V. At a 1 A load, this can improve efficiency by several percentage points, particularly at lower output voltages where diode drop represents a larger fraction of output voltage.
What protection features does ADP2442ACPZ include for rugged industrial deployments?
ADP2442ACPZ incorporates thermal shutdown and cycle-by-cycle current limiting to protect against overload and short-circuit faults. The thermal shutdown activates when junction temperature approaches the rated maximum (typically 125°C), and the current limit prevents damage when output current exceeds 1 A under fault conditions, allowing automatic recovery after fault removal.
What is the package type and pin configuration of ADP2442ACPZ, and how does it affect PCB layout for switching regulators?
ADP2442ACPZ is housed in a compact QFN package, which places the exposed thermal pad directly on the bottom for low thermal resistance to the PCB ground plane. This layout minimizes the hot-spot temperature rise at full 1 A load and reduces the switching loop inductance, which is critical for limiting EMI at frequencies typically ranging from hundreds of kHz to several MHz.
When should a designer select ADP2442ACPZ over a lower-voltage buck converter such as ADP2302 or ADP2303 for a new power supply design?
ADP2442ACPZ is the right choice when the input rail can reach 36 V under worst-case transient or load-dump conditions, exceeding the 5.5 V to 15 V input range of lower-voltage parts like ADP2302 or ADP2303. Industrial 24 V systems with high-voltage spikes, automotive 12 V systems with 36 V load-dump transients, and telecom 48 V derived rails all benefit from ADP2442's higher input rating.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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