MAX8599
LAST TIME BUYLow-Dropout, Wide-Input-Voltage, Step-Down Controllers
- Part Models
- 1
- 1ku List Price
- price unavailable
Overview
- Low Dropout with > 99.5% Duty Cycle
- Lossless High-Side Current Limit
- Wide 4.5V to 28V Input Range
- Dynamic Output Voltage Adjustment with Adjustable Offset (MAX8597)
- Remote Voltage Sensing for Both Positive and Negative Rails (MAX8597)
- Tracking Output Through REFIN (MAX8597)
- Adjustable Switching Frequency from 200kHz to 1.4MHz
- Adjustable Soft-Start
- Prebias Startup
- Enable and Power-OK (MAX8598/MAX8599) for Flexible Sequencing
- 25MHz Error Amplifier
- Adjustable Hiccup Current Limit for Output Short-Circuit Protection
- Output Overvoltage Protection (MAX8599)
- Small, Low-Profile Thin QFN Package
The MAX8597/MAX8598/MAX8599 voltage-mode PWM step-down controllers are designed to operate from a 4.5V to 28V input supply and generate output voltages down to 0.6V. A proprietary switching algorithm stretches the duty cycle to > 99.5% for low-dropout design. Unlike conventional step-down regulators using a p-channel high-side MOSFET to achieve high duty cycle, the MAX8597/MAX8598/MAX8599 drive n-channel MOSFETs resulting in high efficiency and high-current-capability designs.
The MAX8597 is available in a 20-pin thin QFN package and is designed for applications that use an analog signal to control the output voltage with an adjustable offset, such as DC fan-speed control. This is achieved with an internal uncommitted operational amplifier. The MAX8597 is also targeted for tracking output-voltage applications for chipsets, ASIC and DSP cores, and I/O supplies. The MAX8598/MAX8599 are available in a 16-pin thin QFN package and do not have the uncommitted operational amplifier, reference input, and reference output, but offer an open-drain, power-OK output.
The MAX8597/MAX8598/MAX8599 allow startup with prebias voltage on the output for applications where a backup supply or a tracking device may charge the output capacitor before the MAX8597/MAX8598/MAX8599 are enabled. In addition, the MAX8599 features output overvoltage protection.
These controllers also feature lossless high-side peak inductor current sensing, adjustable current limit, and hiccup-mode short-circuit protection. Switching frequency is set with an external resistor from 200kHz to 1.4MHz. This wide frequency range combined with a wide-bandwidth error amplifier enables the loop compensation scheme to give the user ample flexibility to optimize for cost, size, and efficiency.
Applications
- Chipset Power Supplies
- Nonisolated Power Modules
- Tracking Power Supplies (MAX8597)
- Variable-Speed DC Fan Power Supplies (MAX8597)
Documentation
Data Sheet 1
Technical Articles 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX8599ETE+ | 16-Lead TQFN (4mm x 4mm x 0.75mm) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 20, 2016 - 1612 ASSEMBLY |
||
| MAX8599ETE+ | ||
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| MOSFET & Gate Drivers 3 | ||
| MAX8535 | PRODUCTION | ORing MOSFET Controllers with Fastest Fault Isolation for Redundant Power Supplies |
| MAX8536 | PRODUCTION | ORing MOSFET Controllers with Fastest Fault Isolation for Redundant Power Supplies |
| MAX8585 | PRODUCTION | ORing MOSFET Controllers with Fastest Fault Isolation for Redundant Power Supplies |
| Switching Regulators & Controllers 4 | ||
| MAX1917 | PRODUCTION | Tracking, Sinking and Sourcing, Synchronous Buck Controller for DDR Memory and Termination Supplies |
| MAX8554 | PRODUCTION | 4.5V to 28V Input, Synchronous PWM Buck Controllers for DDR Termination and Point-of-Load Applications |
| MAX1954A | PRODUCTION | Low-Cost, Current-Mode PWM Buck Controller with Foldback Current Limit |
| MAX8538 | PRODUCTION | Dual-Synchronous Buck Controllers for Point-of-Load, Tracking, and DDR Memory Power Supplies |
Evaluation Kits
Evaluation Kit for the MAX8597/MAX8598/MAX8599
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