MAX782CBX+ Analog Devices Integrated Circuit (Small Outline Packages) In Stock
The MAX782CBX+ is a triple-output power-supply controller IC from Analog Devices, designed for notebook computers. It provides regulated outputs for CPU core, I/O, and memory rails, featuring high efficiency synchronous buck conversion with 5V and 3.3V outputs, programmable voltage via external resistors, and integrated MOSFET gate drivers. Ideal for portable computing power management applications.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 36
- Lifecycle
- ACTIVE
- Datasheet
- MAX782CBX+ Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Triple-output synchronous buck controller supporting CPU, I/O, and memory supply rails in one IC
- Programmable output voltage via external resistor divider for flexible 5V and 3.3V rail design
- Integrated high-side and low-side MOSFET gate drivers reducing external component count
- High-efficiency PWM control with adjustable frequency up to 300 kHz for compact magnetics
- Designed for notebook computer power management with low quiescent current in sleep mode
Applications
The MAX782CBX+ is used in notebook and laptop computer power management circuits where multiple regulated DC rails are required from a single battery input. It efficiently generates the core CPU voltage, I/O voltage, and memory supply voltage simultaneously, making it well suited for portable computing designs. System designers also deploy it in embedded computing and handheld device power trees requiring compact, high-efficiency multi-output DC-DC conversion.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many regulated output rails does the MAX782CBX+ support simultaneously?
The MAX782CBX+ is a triple-output power-supply controller, meaning it can simultaneously regulate 3 independent DC output rails. This makes it ideal for notebook computers that need separate supply voltages for the CPU core, I/O logic, and memory subsystems, all derived from a single Li-Ion battery input around 7.2V to 21V.
What switching frequency does the MAX782CBX+ operate at, and how does it affect inductor selection?
The MAX782CBX+ operates at a programmable switching frequency up to approximately 300 kHz. Higher switching frequencies allow the use of smaller inductors and capacitors, reducing overall PCB footprint. Designers targeting compact notebook designs typically choose inductors in the 4.7 µH to 22 µH range, balancing efficiency against component size at these frequencies.
Is the MAX782CBX+ a suitable replacement for dual-output controllers in portable computing designs?
Yes, the MAX782CBX+ is a strong upgrade over dual-output controllers because it integrates 3 independent regulated outputs in a single SSOP package, reducing BOM complexity and PCB area. Competing dual-output designs require a second IC for the third rail, adding roughly 50 mA of additional quiescent current and extra routing. The MAX782CBX+ consolidates this into one chip.
What package does the MAX782CBX+ use and how does it simplify PCB layout for a notebook motherboard?
The MAX782CBX+ is offered in a 28-pin SSOP (Shrink Small Outline Package) with a 5.3 mm body width and 0.65 mm pin pitch. This compact 28-pin footprint, combined with integrated gate drivers, reduces the need for external driver ICs, simplifying routing on dense notebook motherboard layouts and enabling a power-management module smaller than 10 cm².
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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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