Datasheet > NCP6343BFCCT1G

NCP6343BFCCT1G

更新时间： 2024-11-24 11:11:39

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
32页	984K
描述
3 A 处理器 - 带动态电压缩放的内存供应，I2C 编程瞬变负载帮助器

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NCP6343BFCCT1G 数据手册

Synchronous Buck

Converter - Step Down

3.0 A

NCP6343

The NCP6343 is a synchronous buck converter optimized to supply

the different sub systems of portable applications powered by one cell

Li−Ion or three cell Alkaline/NiCd/NiMH batteries. The device is able

to deliver up to 3.0 A, with programmable output voltage from 0.6 V

to 1.4 V. It can share the same output rail with another DCDC and

works as a transient load helper. Operation at a 3 MHz switching

frequency allows the use of small components. Synchronous

rectification and automatic PWM/PFM transitions improve overall

solution efficiency. The NCP6343 is in a space saving, low profile

1.99 x 1.34 mm CSP−15 package.

www.onsemi.com

MARKING

DIAGRAM

6343x

ALYWW

WLCSP15

CASE 567GB

= P: Prototype

= Blank: 1.225 V − 2.0 A

Features

= A: 1.225 V − 3.0 A

= B: 1.225 V − 3.0 A

= D: 1.18125 V − 3.0 A

= M: 0.925 V − 3.0 A

= S: 1.050 V − 3.0 A

= V: 1.225 V − 3.0 A

= X: 1.225 V − 3.0 A

= Assembly Location

= Wafer Lot

• Input Voltage Range from 2.3 V to 5.5 V: Battery and 5 V Rail

Powered Applications

• Programmable Output Voltage: 0.6 V to 1.4 V in 6.25 mV Steps

• Modular Output Stage Drive Strength for Increased Efficiency

Depending on the Output Current

• 3 MHz Switching Frequency with On Chip Oscillator

• Uses 470 nH Inductor and 22 mF Capacitors for Optimized Footprint

= Year

WW = Work Week

and Solution Thickness

= Pb−Free Package

• PFM/PWM Operation for Optimum Increased Efficiency

Pb−Free indicator, G or microdot (G),

• Ultra Low 0.8 mA Off Mode Current

• Low 35 mA Quiescent Current

may or may not be present

• I C Control Interface with Interrupt and Dynamic Voltage Scaling

PINOUT DIAGRAM

NCP6343

Support

• Thermal Protections and Temperature Management

• Transient Load Helper: Share the Same Rail with Another DCDC

• Small 1.99 x 1.34 mm / 0.4 mm Pitch CSP Package

• These are Pb−Free Devices

PVIN

PGND

Typical Applications

• Smartphones

• Webtablets

PVIN

AVIN

PGND

SDA

NCP6343

References

Oscillator

PVIN

Supply Input

AVIN

Supply Input

Core

10 uF

AGND

DCDC

3.0 A

470 nH

22 uF

Thermal

Protection

PGND

Enable Control EN

Input

AGND

SCL

Operating

Mode

Control

I@C

Core

Processor

Memory

DCDC

3 MHz

Controller

SDA

SCL

Sense

22 uF

Processor I@C

(Top View)

15−Pin 0.40 mm pitch WLCSP

Control Interface

ORDERING INFORMATION

See detailed ordering and shipping information on page 30 of

this data sheet.

Figure 1. Typical Application Circuit

Publication Order Number:

August, 2020 − Rev. 13

NCP6343/D

12 3 4 5 6 7...32

中文翻译

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