Datasheet > SGM38042B-1

SGM38042B-1

更新时间： 2023-09-03 20:30:42

品牌	Logo	应用领域
圣邦微 - SGMICRO		/
页数	文件大小	规格书
15页	937K
描述
Single Inductor Triple Output AMOLED Display Power Supply

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SGM38042B-1 数据手册

SGM38042B-1/SGM38042B-3/SGM38042B-5

Single Inductor Triple Output

AMOLED Display Power Supply

GENERAL DESCRIPTION

FEATURES

The SGM38042B-1, SGM38042B-3 and SGM38042B-5

generate both positive and negative precision regulated

voltage power sources with a control scheme for single

inductor dual output converter. The positive output is

programmable from 2.4V to 6.4V with 100mV per step,

and the negative output is programmable from -2V to

-3.2V with 50mV per step.

● Single Inductor for Triple Outputs

● High Efficiency in Wide Output Loading Range

● 850kHz PWM Mode Control Switching Frequency

● Pulse-Skip Operation in Light Load Condition

● Programmable Outputs with 1-Wire Interface

V_CPO= 2.4V to 6.4V

V_CNO= -2V to -3.2V

A linear regulator capable of 50mA output current is

also integrated. These devices are equipped with

1-Wire interface. With input in the range of 2.7V to 5.5V,

these devices are optimized for loading 100mA in

boost-inverter mode and also work in buck-inverter

mode.

● Auxiliary Output Rail: Fixed 3.3V, 2.8V or 1.8V

● 100mA Output Current for V_CPOand V_CNO

● Configurable Active Discharge

● Internal Soft-Start to Limit Inrush Current

● Over-Temperature Protection (OTP)

● Over-Current Protection (OCP)

The SGM38042B-1/3/5 are available in a Green

WLCSP-1.51×2.10-15B package. They operate over

an ambient temperature range of -40℃ to +85℃.

● Short Circuit Protection (SCP)

APPLICATIONS

AMOLED/LCD Smart-Phones/Media-Players

Wearable Device Display

SELECTABLE MODEL

Model

Default Outputs

SGM38042B-1

SGM38042B-3

SGM38042B-5

V_CPO= 4.6V/V_CNO= -2.4V/V_CVO= 1.8V

V_CPO= 4.6V/V_CNO= -2.4V/V_CVO= 2.8V

V_CPO= 4.6V/V_CNO= -2.4V/V_CVO= 3.3V

TYPICAL APPLICATION

4.7μH

SWN

SWP

VIN

CVO

CVO Enable

CVO_EN

2.7V ~ 5.5V

3.3V/2.8V/1.8V

SGM38042B-1/3/5

1W I/F

Discharge Enable

CPO

CNO

DISP

DISN

2.4V ~ 6.4V

-2V ~ -3.2V

C_N

10μF

C_P

10μF

C_V

10μF

C_IN

10μF

C_NR

10μF

C_PR

10μF

Figure 1. Typical Application Circuit

SG Micro Corp

FEBRUARY 2021 – REV. A

www.sg-micro.com

12 3 4 5 6 7...15

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