MAX8654ETX+ by Analog Devices

12V, 8A, 1.2MHz, Step-Down Regulator


The MAX8654 high-efficiency switching regulator delivers up to 8A of load current at output voltages from 0.6V to 0.85 x VIN. The IC operates from 4.5V to 14V, making it ideal for on-board point-of-load and postregulation applications, with total output error less than ±1% over load, line, and temperature ranges. The MAX8654 is a fixed-frequency PWM mode regulator with a switching frequency range of 250kHz to 1.2MHz set by an external resistor or SYNC input. High-frequency operation allows for an all-ceramic-capacitor solution. A SYNCOUT output is provided to synchronize a second regulator switching 180° out-of-phase with the first to reduce the input ripple current and consequently reduce the required input capacitance. The high operating frequency minimizes the size of external components. The on-board low RDS(ON) dual-nMOS design keeps the board cooler at heavy loads while minimizing the critical inductances, making the layout a much simpler task with respect to the discrete solutions. The MAX8654 comes with a high-bandwidth (20MHz) voltage-error amplifier. The voltage-mode control architecture and the op-amp voltage-error amplifier permit a type 3 compensation scheme to be utilized to achieve maximum loop bandwidth, up to 20% of the switching frequency. High loop bandwidth achieves fast transient response resulting in less output capacitance required. The MAX8654 offers programmable soft-start to accommodate different types of output capacitors and reduce input inrush current. The MAX8654 is available in a 36-lead TQFN package.

Where to Buy

Prices starting from US$8.47

Distributor Stock
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Farnell
from US$10.38
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Analog Devices
from US$9.69
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Schukat Electronic
from US$8.47
30
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Newark Electronics
from US$10.97
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Features

Internal 26mΩ RDS(ON) MOSFETs
Guaranteed 8A Output Current
Adjustable Overcurrent Protection
1% Output Accuracy Over Temperature
Operates from 4.5V to 14V Supply
Adjustable Output from 0.6V to 0.85 x VIN
Soft-Start Reduces Inrush Supply Current
250kHz to 1.2MHz Adjustable Switching or SYNC Input
Compatible with Ceramic, Polymer, and Electrolytic Output Capacitors
SYNCOUT Synchronizes 2nd Regulator 180° Out-of-Phase
36-Pin, Lead-Free, 6mm x 6mm TQFN Package

Specifications

VIN (V) (min) 4.5
VIN (V) (max) 14
VOUT1 (V) (min) 0.6
VOUT1 (V) (max) 12
IOUT1 (A) (max) 8
Switch Type Internal
Output Adjust. Method Resistor
Synchronous Switching? Yes
Power Good Signal Yes
# DC-DC Outputs 1
Switching Frequency (kHz) 1200
Design Tools EE-Sim
Package/Pins TQFN/36
BudgetaryPrice (See Notes) 7.65


MAX8654ETX+ Semiconductors - ICs by Analog Devices

DC/DC CONV SYNC BUCK 1.2MHZ TQFN-36

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

Specifications

Topology Synchronous Buck (Step Down)
Input Voltage Min 4.5V
Input Voltage Max 14V
No. of Outputs 1Outputs
DC / DC Converter IC Case TQFN
No. of Pins 36Pins
Output Current 8A
Output Voltage Min 600mV
Output Voltage Max 12V
Switching Frequency 1.2MHz
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)

Alternative Descriptions

12V, 8A, 1.2MHz, Step-Down Reg | Analog Devices
Buck Sw. Reg Adj 8A 4,5-14Vi TQFN36 | Schukat Electronic
Dc/Dc Conv, Sync Buck, 1.2Mhz, Tqfn-36 | Newark Electronics
DC/DC CONV, SYNC BUCK, 1.2MHZ, TQFN-36 | element14

Frequently Asked Questions

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Is the MAX8654ETX+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX8654ETX+ have stock available?

Authorised distributors including Analog Devices, Schukat Electronic, Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX8654ETX+ .

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