Datasheet > SiC431AED-T1-GE3

SiC431AED-T1-GE3

更新时间： 2024-11-25 01:06:31

品牌	Logo	应用领域
威世 - VISHAY		/
页数	文件大小	规格书
24页	809K
描述
Synchronous Buck Regulator 24 V Input, 24 A (SiC431)

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SiC431AED-T1-GE3 数据手册

SiC431

Vishay Siliconix

www.vishay.com

Synchronous Buck Regulator 24 V Input, 24 A (SiC431)

FEATURES

• Versatile

- Operation from 3 V to 24 V input voltage

- Adjustable output voltage down to 0.6 V

- Scalable solution 8 A (SiC438), 12 A (SiC437),

and 24 A (SiC431)

- Output voltage tracking and sequencing with

pre-bias start up

1 % output voltage accuracy from -40 °C to +125 °C

DESCRIPTION

• Highly efficient

- 97 % peak efficiency

- 1 μA supply current at shutdown

- 50 μA operating current, not switching

• Highly configurable

The SiC431 is a synchronous buck regulator with integrated

high side and low side power MOSFETs. Its power stage

is capable of supplying 24 A continuous current at up to

1 MHz switching frequency. This regulator produces an

adjustable output voltage down to 0.6 V from 3 V to 24 V

input rail

to accommodate a variety of applications,

- Four programmable switching frequencies available:

300 kHz, 500 kHz, 750 kHz, and 1 MHz

including computing, consumer electronics, telecom, and

industrial.

SiC431’s architecture supports ultrafast transient response

with minimum output capacitance and tight ripple regulation

at very light load. The device is internally compensated and

no external ESR network is required for loop stability

purposes. The device also incorporates a power saving

scheme that significantly increases light load efficiency.

- Adjustable soft start and adjustable current limit

- Three modes of operation: forced continuous

conduction, power save (SiC431B, SiC431D), or

ultrasonic (SiC431A, SiC431C)

• Robust and reliable

The regulator integrates a full protection feature set,

including output over voltage protection (OVP), cycle by

cycle over current protection (OCP) short circuit protection

(SCP) and thermal shutdown (OTP). It also has UVLO and a

user programmable soft start.

The SiC431 is available in lead (Pb)-free power enhanced

MLP44-24L package in 4 mm x 4 mm dimension.

- Cycle-by-cycle current limit

- Output overvoltage protection

- Output undervoltage / short circuit protection with auto

retry

- Power good flag and over temperature protection

• Design tools

- Supported by Vishay PowerCAD Online Design

Simulation (www.vishay.com/power-ics/powercad-list/)

APPLICATIONS

- Design Support Kit (www.vishay.com/ppg?74589)

• 5 V, 12 V, and 24 V input rail POLs

• Desktop, notebooks, server, and industrial computing

• Industrial and automation

• Material categorization: for definitions of compliance

please see www.vishay.com/doc?99912

• consumer electronics

TYPICAL APPLICATION CIRCUIT AND PACKAGE OPTIONS

100

V_OUT= 5 V, L = 1 μH

V_OUT= 3.3 V, L = 1 μH

INPUT

BOOT

3.0 V_DCto 24 V_DC

C_BOOT

V_IN

Phase

V_OUT

SiC431

V_DD

V_OUT= 1.2 V, L = 0.36 μH

V_DRV

C_IN

MODE1

MODE2

V_OUT

V_FB

Complete converter efﬁciency

P_IN= V_INx I_IN

P_OUT= V_OUTx I_OUT, measured at output capacitor

R_UP

R_DOWN

C_OUT

10 12 14 16 18 20

Output Current, I_OUT(A)

Fig. 1 - Typical Application Circuit for SiC431

Fig. 2 - Efficiency vs. Output Current

(V_IN= 12 V, f_sw= 500 kHz, Full Load)

S18-0176-Rev. C, 12-Feb-18

Document Number: 74589

For technical questions, contact: powerictechsupport@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

12 3 4 5 6 7...24

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与SiC431AED-T1-GE3相关器件

型号	品牌	获取价格	描述	数据表
SiC431BED-T1-GE3	VISHAY	获取价格	Synchronous Buck Regulator 24 V Input, 24 A (SiC431)
SiC431CED-T1-GE3	VISHAY	获取价格	Synchronous Buck Regulator 24 V Input, 24 A (SiC431)
SiC431DED-T1-GE3	VISHAY	获取价格	Synchronous Buck Regulator 24 V Input, 24 A (SiC431)
SIC437	VISHAY	获取价格	Synchronous Buck Regulators 28 V Input, 12 A (SiC437) and 8 A (SiC438)
SiC437A	VISHAY	获取价格	3 V to 28 V Input, 8 A, 12 A microBUCK? DC/DC Converter
SiC437AED-T1-GE3	VISHAY	获取价格	Synchronous Buck Regulators 28 V Input, 12 A (SiC437) and 8 A (SiC438)
SiC437BED-T1-GE3	VISHAY	获取价格	Synchronous Buck Regulators 28 V Input, 12 A (SiC437) and 8 A (SiC438)
SiC437CED-T1-GE3	VISHAY	获取价格	Synchronous Buck Regulators 28 V Input, 12 A (SiC437) and 8 A (SiC438)
SiC437DED-T1-GE3	VISHAY	获取价格	Synchronous Buck Regulators 28 V Input, 12 A (SiC437) and 8 A (SiC438)
SiC438AED-T1-GE3	VISHAY	获取价格	Synchronous Buck Regulators 28 V Input, 12 A (SiC437) and 8 A (SiC438)

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