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Data Sheet

FULL DATA SHEET (PDF, 272kB) Download   E-Mail

Description

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.

Key Features		Applications/Uses
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		Desknotes and Notebooks Dual/Triple Power Supplies Graphic Cards Low-Voltage DSP, µP, and Microcontroller Power Supplies Motherboards Ultra-Low-Dropout Voltage Regulators

Diagram

Typical Operating Circuit

Evaluation Kits

MAX8564EVKIT

Reliability Reports

Show FIT data for: MAX8563 MAX8564 Reliability Report: MAX8564xEUB.pdf Request Reliability Report for: MAX8563 MAX8564A

Software/Models

none

Ordering Information
Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
Devices: 1-12 of 12
MAX8563	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX8563EEE+T			QSOP;16 pin;31 mm² Dwg: 21-0055G (PDF) Use pkgcode/variation: E16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8563EEE			QSOP;16 pin;31 mm² Dwg: 21-0055G (PDF) Use pkgcode/variation: E16-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8563EEE-T				-40°C to +85°C	See data sheet
MAX8563EEE+			QSOP;16 pin;31 mm² Dwg: 21-0055G (PDF) Use pkgcode/variation: E16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8564	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX8564EUB			uMAX;10 pin;15 mm² Dwg: 21-0061J (PDF) Use pkgcode/variation: U10-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8564EUB-T			uMAX;10 pin;15 mm² Dwg: 21-0061J (PDF) Use pkgcode/variation: U10-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8564EUB+T			uMAX;10 pin;15 mm² Dwg: 21-0061J (PDF) Use pkgcode/variation: U10+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8564EUB+			uMAX;10 pin;15 mm² Dwg: 21-0061J (PDF) Use pkgcode/variation: U10+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8564A	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX8564AEUB			uMAX;10 pin;15 mm² Dwg: 21-0061J (PDF) Use pkgcode/variation: U10-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8564AEUB-T			uMAX;10 pin;15 mm² Dwg: 21-0061J (PDF) Use pkgcode/variation: U10-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8564AEUB+			uMAX;10 pin;15 mm² Dwg: 21-0061J (PDF) Use pkgcode/variation: U10+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8564AEUB+T				-40°C to +85°C	See data sheet

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