ADP322ACPZ-145 Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
ADP322ACPZ-145 is a high-efficiency synchronous step-down DC-DC converter from Analog Devices. It delivers up to 3 A output current with 1.45 V fixed output voltage, operating from a 2.3 V to 5.5 V input range. Available in a compact LFCSP package with integrated power MOSFETs for space-constrained designs.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 17
- Lifecycle
- ACTIVE
- Datasheet
- ADP322ACPZ-145 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- High-efficiency synchronous step-down topology with integrated power MOSFETs eliminates external switching components
- Fixed 1.45 V output voltage with up to 3 A continuous output current for low-voltage digital loads
- Wide input voltage range of 2.3 V to 5.5 V supports single-cell Li-ion and regulated 3.3 V/5 V rails
Applications
The ADP322ACPZ-145 is well-suited for powering low-core-voltage processors and FPGAs in portable consumer electronics, where efficiency and small board area are paramount. It also serves point-of-load regulation on industrial and communications boards that require a stable 1.45 V rail from a 3.3 V or 5 V bus. Its compact LFCSP footprint makes it ideal for space-constrained applications such as wearables and handheld instruments.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for ADP322ACPZ-145:
Frequently Asked Questions
What is the maximum continuous output current the ADP322ACPZ-145 can supply?
The ADP322ACPZ-145 is rated for up to 3 A continuous output current at its fixed 1.45 V output, making it suitable for powering microprocessors, FPGAs, and other digital logic that draw moderate current from a regulated low-voltage rail.
Which input voltage sources are compatible with the ADP322ACPZ-145 in a portable design?
The device accepts an input voltage from 2.3 V to 5.5 V, covering single-cell Li-ion batteries (nominally 3.7 V), regulated 3.3 V system rails, and standard 5 V USB power, giving designers flexibility across a wide range of portable and battery-operated applications.
How does the integrated synchronous topology of the ADP322ACPZ-145 reduce BOM complexity?
Because both the high-side and low-side power MOSFETs are integrated on-chip, no external switching transistors are needed. This reduces component count, simplifies PCB layout, and lowers overall BOM cost compared to non-synchronous or controller-only alternatives that require discrete 3 A-rated FETs.
When would you choose the ADP322ACPZ-145 over a higher-voltage LDO for a 1.45 V rail?
A switching regulator like the ADP322ACPZ-145 is preferred when the input-to-output voltage difference exceeds about 0.5 V and load current approaches 3 A, because an LDO would dissipate excessive heat (up to several watts) whereas the step-down converter maintains high efficiency and keeps the thermal budget under control in tight enclosures.
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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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