Datasheet > SMB208A

SMB208A

更新时间： 2022-05-07 21:27:45

品牌	Logo	应用领域
SUMMIT		稳压器
页数	文件大小	规格书
27页	1475K
描述
Dual Programmable Buck Regulators with Integrated MOSFETs and Digital Control

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数据手册

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SMB208A 数据手册

SMB206A/7A/8A

Preliminary

Figure 2 - TYPICAL APPLICATION

SMB206A - 3A+3A

SMB207A - 1A+1A

SMB208A - 2A+2A

SMB206A/7A/8A

BST0

0.1uF

+4.5V to +16V

4.7uF

PVIN(4)

AVIN

UVLO

2.2uH-6.8uH

+0.8V to VIN @ 1A-3A

SW0(2)

PWM

Oscillator

Internal

5V LDO

VDD

FB0

Optional for custom

output voltages

1uF

Θ0

Θ1

1A-3A

4.7/10/

22uF

I2C I/F

SDA

SCL

EN1

EN0

BST1

0.1uF

Digital

Control

Output

2.2uH-6.8uH

+0.8V to VIN @ 1A-3A

Voltage

Sequencer

Softstart

Vref

SW1(2)

NV OTP

PWM

FB1

Optional for custom

output voltages

PGOOD/RESET

1A-3A

4.7/10/

22uF

GND

PIN DESCRIPTION

QFN-20 Pin #

TSSOP Pin #*

Pin Name

Pin Type

Pin Description

Power Input - Connect to +4.5V to +16V source. Bypass with 4.7uF

MLCC

16, 17, 19, 20

3, 4, 22, 23

PVIN

Power

AVIN

VDD

Power

Ground

Input

Analog Power Input - Connect to +4.5V to +16V source (same as PVIN)

Internal VDD - +5V internal supply. Bypass with 1uF typical MLCC

Ground – Connect to PCB isolated ground

I²C Clock

4, PAD

8, PAD

GND

SCL

SDA

I/O

I²C Data

7,6

11, 10

20, 21, 5, 6

19, 7

17, 9

EN(0/1)

SW0/1

BST0/1

FB0/1

Input

Enable 0/1 – Enables output, high true

14, 15, 1, 2

13, 3

11, 5

Output

Input

Switch Node 0/1 – Connect to output inductors

Bootstrap Input – Connect to 0.1uF capacitor to switch node

Feedback Input 0/1 – Connect to output sense node

Input

PGOOD/

RESET

PowerGood/RESET Output – Output UV monitor signal (high true, open

drain)

Output

1, 12, 13, 24

Not Connected

*Contact factory for TSSOP package

SUMMIT Microelectronics, Inc.

2147 2.4 2/23/2012

1 234 5 6 7...27

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