DFE252012F-R47M datasheet(1/122 Pages) AD

部件名	DFE252012F-R47M

功能描述	16VIN/16A, Quad-Phase High-Efficiency Buck Converter

PDF	122 Pages

Scroll/Zoom	100%

制造商	AD [Analog Devices]

网页	http://www.analog.com

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1 / 122 page

General Description

The MAX77542 is a high-efficiency step-down converter

with four 4A switching phases. It uses an adaptive con-

stant on-time (COT) current-mode control scheme and its

flexible architecture supports five phase configurations. Its

wide input-voltage range enables a direct conversion for

less than 1V outputs from 1 to 3-cell Li+ batteries and USB

power delivery (PD) supply rails. The output voltages are

preset with resistors and are further adjustable through an

I2C-compatible interface.

Flexible sequencer and programmable soft-start/soft-stop

slew rates provide controlled transitions between operat-

ing states. Programmable switching frequency, frequen-

cy tracking, and spread-spectrum features allow easier

system optimization for noise-sensitive applications. Mul-

tifunction I/Os allow for flexible control of each output for

EN, LPM, FPWM, POK, RSTINB, and RSTOB status. An

array of built-in protections ensures safe operation under

abnormal operating conditions.

Applications

● 1 to 3-Cell Li+ and USB-C Power Delivery Systems

● Audio/Video Equipment and PCIe/RAID Cards

● Application Processors, FPGAs, DSPs, and ASICs

Benefits and Features

● 2.8V to 16V Input-Voltage Range

● 0.3V to 5.2V Output-Voltage Range

● Max 16A (4A/Φ) with Five Phase Configurations

● ±0.5% VOUT Accuracy (Default VOUT at +25°C)

● 94% Peak Efficiency (7.6VIN, 3.3VOUT, 1MHz)

● Auto Skip/PWM Transition and Low-Power Mode

● Drop-Out Operation with 98% of Max Duty Cycle

● Differential Output-Voltage Sensing

● Flexible Sequencer with Soft-Start/Soft-Stop Slew

Rates

● Prebiased Startup and Active Output Discharge

● 0.5MHz/1.0MHz/1.5MHz Nominal Switching

Frequency

● Spread-Spectrum Modulation for EMI Reduction

● Internal/External Frequency Tracking

● Default VOUT and Phase Configuration Setting by

RSELx

● Multifunction I/Os for EN, LPM, FPWM, and POK

● UVLO, Thermal-Shutdown, and Short-Circuit

Protection

● High-Speed, I2C Serial Interface

● Available in 60-Bump WLP (4.36mm x 2.56mm x

0.65mm)

● Less than 115mm2 Total Solution Size with 2520

Inductors

Typical Applications Circuit

1Φ

+

1Φ

+

1Φ

+

1Φ

4A

PHASE-CONFIGURABLE

QUAD-OUTPUT

4A

2Φ

+

2Φ

4Φ

16A

2Φ

+

1Φ

+

1Φ

4A

8A

3Φ

+

1Φ

12A

4A

8A

VOUT1 (0.3V TO 5.2V)

PGND1

LX1

PGND2

LX2

SNS1P

SNS2P

SYS

IRQB

SCL

AGND

SDA

CFG1

MAX77542

1+1+1+1

CONFIGURATION

IN1

BST1

BST2

SEL4

CE

MFIO1

MFIO2

VDD

VL12

VIO

DC POWER SOURCE

(2.8V TO 16V)

DC POWER SOURCE

(2.8V TO 16V)

VOUT2 (0.3V TO 5.2V)

IN2

DC POWER SOURCE

(2.8V TO 16V)

VOUT3 (0.3V TO 5.2V)

PGND3

LX3

PGND4

LX4

SNS3P

SNS4P

IN3

BST3

BST4

DC POWER SOURCE

(2.8V TO 16V)

VOUT4 (0.3V TO 5.2V)

IN4

DC POWER SOURCE

(2.8V TO 16V)

SEL3

MFIO3

MFIO4

VIO

MFIO8

MFIO5

MFIO7

MFIO6

SNS3N

SNS1N

SEL2

SEL1

CFG2

VL34

ALT_IN

Click here to ask an associate for production status of specific part numbers.

MAX77542

16VIN/16A, Quad-Phase High-Efficiency Buck

Converter

EVALUATION KIT AVAILABLE

Typical Application Circuits continued at end of data sheet.

Ordering Information appears at end of data sheet.

19-101666; Rev 0; 2/23

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