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Features
- MAX8563: 3 Outputs
- MAX8564/MAX8564A: 2 Outputs
- ±1% Feedback Regulation
- Adjustable Output Voltage Down to 0.5V
- Can Use Ceramic Output Capacitors
- Wide Supply Voltage Range Permits Operation from 5V or 12V Rails
- Individual Enable Control and POK Signal Allows Sequencing
- Overload Protection Against Soft Short-Circuit Condition
- Undervoltage Short-Circuit Protection
- Drive n-Channel MOSFETs
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The MAX8563/MAX8564/MAX8564A ultra-low-output dual and triple LDO controllers allow flexible and inexpensive point-of-load voltage conversion in motherboards, desknotes, notebooks, and other applications.
These parts feature a 0.5V reference voltage with ±1% accuracy providing tight regulation of the output voltage. The MAX8563 has three n-channel MOSFET controller outputs, and the MAX8564/MAX8564A has two controller outputs.
Each controller output is adjustable from 0.5V to 3.3V when VDD = 12V and between 0.5V and 1.8V when VDD = 5V. Each output is independently enabled and asserts a POK signal when the output reaches 94% of the set value. Each output is protected against a soft short-circuit condition by an undervoltage comparator that disables the output when it drops to under 80% of the set voltage for more than 50µs. For a catastrophic short condition, the regulators are shut down immediately if the output drops below 60% of the set voltage.
The MAX8563 is available in a 16-pin QSOP package, and the MAX8564/MAX8564A are available in a 10-pin µMAX® package.
Applications
- Desknotes and Notebooks
- Dual/Triple Power Supplies
- Graphic Cards
- Low-Voltage DSP, µP, and Microcontroller Power Supplies
- Motherboards
- Ultra-Low-Dropout Voltage Regulators
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MAX8564A
Documentation
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Data Sheet
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MAX8563-MAX8564A: ±1%, Ultra-Low Output Voltage, Dual and Triple Linear n-FET Controllers Data Sheet (Rev.2)
MAX8563-MAX8564A_cn: ±1%、超低输出电压、双路或三路线性n-FET控制器 Data Sheet (Rev.2)
Documentation
Software & Part Ecosystem
Evaluation Kits 1
MAX8564EVKIT
Evaluation Kit for the MAX8563, MAX8564
Features and Benefits
Product Detail
The MAX8564 evaluation kit (EV kit) is a fully assembled and tested circuit board that evaluates the MAX8564 dual linear n-FET controller. The MAX8564 circuit generates a 1.5V output voltage at load currents up to 1.5A from a 1.8V input voltage and a 1.05V output voltage at load currents up to 3A from a 1.2V input voltage. The VDD bias supply permits operation from 5V or 12V rails. The MAX8564 EV kit can also evaluate the MAX8563. To evaluate the MAX8563, order a free sample with this EV kit.
Applications
- Desknotes and Notebooks
- Dual/Triple Power Supplies
- Graphic Cards
- Low-Voltage DSP, µP, and Microcontroller Power Supplies
- Motherboards
- Ultra-Low-Dropout Voltage Regulators