Datasheet > SiC931

SiC931

更新时间： 2024-11-03 14:55:51

品牌	Logo	应用领域
威世 - VISHAY		/
页数	文件大小	规格书
22页	3537K
描述
4.5 V to 18 V Input, 20 A microBRICK? DC/DC Regulator Module

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SiC931 数据手册

SiC931

Vishay Siliconix

www.vishay.com

4.5 V to 18 V Input, 20 A microBRICK^®DC/DC Regulator Module

FEATURES

• Versatile

- Operation from 4.5 V to 18 V input voltage

- Adjustable output voltage down to 0.6 V

- Output voltage tracking and sequencing with

pre-bias start up

1 % output voltage accuracy from -40 °C to

+125 °C

LINKS TO ADDITIONAL RESOURCES

• Highly efficient

- 95 % peak efficiency

Design Tool

Evaluation

Boards

Design Tools

- 1 μA supply current at shutdown

- 50 μA operating current, not switching

• Highly configurable

- Four programmable switching frequencies available:

600 kHz, 1 MHz, 1.5 MHz, and 2 MHz

- Adjustable soft start and adjustable current limit

- Programmable modes of operation: forced continuous

conduction or power save mode

• Robust and reliable

- Cycle-by-cycle current limit

- Output overvoltage protection

- Output undervoltage / short circuit protection with auto

retry

-Power good flag and over temperature protection

• High power density

DESCRIPTION

The SiC931 is a synchronous buck regulator module with

integrated power MOSFETs and inductor. Its power stage

is capable of supplying 20 A continuous current at up to

2 MHz switching frequency. This regulator produces an

adjustable output voltage down to 0.6 V from 4.5 V to 18 V

input rail to accommodate

including computing, consumer electronics, telecom, and

industrial.

a variety of applications,

SiC931’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.

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.

- Integration of high current output inductor

- 10.6 mm x 6.5 mm x 3 mm low profile MLP package

• Ease of use

- Minimum peripheral components

- All ceramic capacitors for input and output

The SiC931 is available in lead (Pb)-free power enhanced

PowerPAK^®MLP60-A6C package in 10.6 mm x 6.5 mm x

3 mm dimensions.

• Material categorization: for definitions of compliance

please see www.vishay.com/doc?99912

APPLICATIONS

• 5 V and 12 V input rail POLs

• Desktop, notebooks, server, and industrial computing

• Industrial and automation

• consumer electronics

TYPICAL APPLICATION CIRCUIT AND EFFICIENCY

Axis Title

BOOT

10000

1000

100

V_IN= 4.5 V to 18 V

V_IN

V_OUT= 5 V, f_sw= 1.5 MHz

V_OUT= 0.6 V to 5.5 V

P_GOOD

V_OUT

V_DD

V_OUT= 3.3 V, f_sw= 1 MHz

V_DRV

V_OUT= 1.8 V, f_sw= 1.5 MHz

0.01

0.1

I_OUT- Output Current (A)

Fig. 1 - Typical Application Circuit

Fig. 2 - Efficiency vs. Output Current

(V_IN= 12 V, Power Save Mode enabled)

S23-0880-Rev. G, 23-Oct-2023

Document Number: 79602

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...22

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