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MAX8566

Maxim Integrated Products
Part Number MAX8566
Manufacturer Maxim Integrated Products
Description PWM Internal-Switch Step-Down Regulator
Published Dec 23, 2006
Detailed Description www.DataSheet4U.com 19-3690; Rev 0; 6/05 KIT ATION EVALU E L B A AVAIL High-Efficiency, 10A, PWM Internal-Switch Step...
Datasheet PDF File MAX8566 PDF File

MAX8566
MAX8566


Overview
www.
DataSheet4U.
com 19-3690; Rev 0; 6/05 KIT ATION EVALU E L B A AVAIL High-Efficiency, 10A, PWM Internal-Switch Step-Down Regulator General Description Features ♦ Internal 8mΩ On-Resistance MOSFETs ♦ 10A Output PWM Step-Down Regulator ♦ ±1% Output Accuracy over Load, Line, and Temperature ♦ Operates from 2.
3V to 3.
6V Input Supply ♦ Adjustable Output from 0.
6V to (0.
87 x VIN) ♦ 250kHz to 2.
4MHz Adjustable Frequency or SYNC Input ♦ Allows All-Ceramic-Capacitor Design ♦ SYNCOUT Drives 2nd Regulator 180° Out-of-Phase ♦ Prebiased or Monotonic Soft-Start ♦ Programmable Soft-Start Time ♦ Output Tracking or Sequencing ♦ Sourcing and Sinking Output Current ♦ Power-Good Output ♦ 32-Lead Thin QFN Package ♦ REFIN for DDR-Termination Application MAX8566 The MAX8566 high-efficiency switching regulator delivers up to 10A load current at output voltages from 0.
6V to (0.
87 x VIN).
The IC operates from 2.
3V to 3.
6V input supplies, making it ideal for point-of-load applications.
The total output-voltage set error is less than ±1% over load, line, and temperature.
The MAX8566 operates in pulse-width-modulation (PWM) mode with a 250kHz to 2.
4MHz switching frequency range that is programmable by an external resistor.
The IC can be synchronized to an external clock in the same frequency range using the SYNC input.
The high operating frequency minimizes the size of external components.
Using low-RDS(ON) n-channel MOSFETs for both high- and low-side switches maintains high efficiency at both heavy-load and highswitching frequencies.
The MAX8566 employs a voltage-mode control architecture with a high-bandwidth (> 10MHz) error amplifier.
The voltage-mode control architecture makes switching frequencies greater than 1MHz possible, achieving all-ceramic-capacitor designs to minimize PC board space.
The error amplifier works with Type 3 compensation to fully utilize the bandwidth of the highfrequency switching to obtain fast transient response.
Adjustable soft-start time provides flexibili...


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