MAX5066EUI+ by Analog Devices

Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications


The MAX5066 is a two-phase, configurable single- or dual-output buck controller with an input voltage range of 4.75V to 5.5V or from 5V to 28V. Each phase of the MAX5066 is designed for 180° operation. A mode pin allows for a dual-output supply or connecting two phases together for a single-output, high-current supply. Each output channel of the MAX5066 drives n-channel MOSFETs and is capable of providing more than 25A of load current. The MAX5066 uses average current-mode control with a switching frequency up to 1MHz per phase where each phase is 180° out of phase with respect to the other. Out-of-phase operation results in significantly reduced input capacitor ripple current and output voltage ripple in dual-phase, single-output voltage applications. Each buck regulator output has its own high-performance current and voltage-error amplifier that can be compensated for optimum output filter L-C values and transient response. The MAX5066 offers two enable inputs with accurate turn-on thresholds to allow for output voltage sequencing of the two outputs. The device's switching frequency can be programmed from 100kHz to 1MHz with an external resistor. The MAX5066 can be synchronized to an external clock. Each output voltage is adjustable from 0.61V to 5.5V. Additional features include thermal shutdown, "hiccup mode" short-circuit protection. Use the MAX5066 with adaptive voltage positioning for applications that require a fast transient response, or accurate output voltage regulation. The MAX5066 is available in a thermally enhanced 28-pin TSSOP package capable of dissipating 1.9W. The device is rated for operation over the -40°C to +85°C extended, or -40°C to +125°C automotive temperature range.

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Prices starting from US$14.05

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Features

4.75V to 5.5V or 5V to 28V Input
Dual-Output Synchronous Buck Controller
Configurable for Two Separate Outputs or One Single Output
Each Output is Capable of Up to 25A Output Current
Average Current-Mode Control Provides Accurate Current Limit
180° Interleaved Operation Reduces Size of Input Filter Capacitors
Limits Reverse Current Sinking When Operated in Parallel Mode
Each Output is Adjustable from 0.61V to 5.5V
Independently Programmable Adaptive Voltage Positioning
Independent Shutdown for Each Output
100kHz to 1MHz per Phase Programmable Switching Frequency
Oscillator Frequency Synchronization from 200kHz to 2MHz
Hiccup Mode Overcurrent Protection
Overtemperature Shutdown
Thermally Enhanced 28-Pin TSSOP Package Capable of Dissipating 1.9W
Operates Over -40°C to +85°C or -40°C to +125°C Temperature Range

Specifications

VIN (V) (min) 4.75
VIN (V) (max) 28
VOUT1 (V) (min) 0.61
VOUT1 (V) (max) 5.5
IOUT1 (A) (max) 25
Switch Type External
Output Adjust. Method Resistor
Synchronous Switching? Yes
# DC-DC Outputs 1
Switching Frequency (kHz) 1000
Package/Pins TSSOP/28
BudgetaryPrice (See Notes) 6.69


MAX5066EUI+ Semiconductors - ICs by Analog Devices

BUCK 2PH 5-28V 25A 0.61-5.5V 28TSSOP

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Supply Voltage Min 5V
Supply Voltage Max 28V
No. of Outputs 2 Output, 2Outputs
Duty Cycle (%) -
Controller IC Case Style TSSOP
No. of Pins 28Pins
Switching Frequency 1MHz
Topology Synchronous Buck (Step Down)
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Frequency 1MHz
Input Voltage Max 28V
Input Voltage Min 5V
Operating Temperature Range -40°C to +85°C
Output Current 25A
Primary Input Voltage 28V

Alternative Descriptions

BUCK, 2PH, 5-28V, 25A, 0.61-5.5V,28TSSOP | Farnell

Frequently Asked Questions

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Is the MAX5066EUI+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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