Datasheet > SGM38045

SGM38045

更新时间： 2023-09-03 20:39:57

品牌	Logo	应用领域
圣邦微 - SGMICRO		/
页数	文件大小	规格书
18页	1518K
描述
Charge Pump Mode Power Supply for Wearable AMOLED Products

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SGM38045 数据手册

SGM38045

Charge Pump Mode Power Supply

for Wearable AMOLED Products

GENERAL DESCRIPTION

FEATURES

The SGM38045 is a power source device for biasing

small AMOLED panels. It can be powered from a

single-cell Lithium-Ion/polymer battery or a DC supply

in the range of 2.7V to 4.8V to provide OVDD, OVSS

and AVDD voltage sources for an AMOLED panel. Two

interim voltage rails (positive and negative) are

generated by the integrated adaptive ×1/×1.5 charge

pump converter and an inverting charge pump inverter.

These rails are regulated by LDOs to get clean and low

ripple positive (AVDD and OVDD) and negative (OVSS)

outputs. This device is optimized for symmetric output

to get highest efficiency from the charge pump inverter.

● 2.7V to 4.8V Input Voltage Range

● 2.8V to 3.5V OVDD (Default: 3.3V ±0.9%, 0.1V/Step)

● -2.8V to -3.5V OVSS (Default: -3.3V ±0.9%, 0.1V/Step)

● 3.3V AVDD (Default: 3.3V ±0.9%)

● Up to 70mA OVDD & OVSS Combined Output

Current Capability

● Excellent Line and Load Regulation

● Low Ripple and Excellent Transient Response

● Soft-Start

● Bi-Directional Input - Output MOSFET Isolation

● Protection Features

 Under-Voltage Lockout Protection (UVLO)

 Over-Current Protection (OCP)

The SGM38045 is available in a Green WLCSP-

1.2×2.4-17B package.

 Short-Circuit Protection (SCP)

 Over-Temperature Protection (OTP)

● Power-Save Mode for Light-Load Efficiency

● Less than 1μA Shutdown Current

● Available in a Green WLCSP-1.2×2.4-17B Package

APPLICATIONS

Wearable AMOLED Products

Phones with AMOLED Vice Screen

SG Micro Corp

MAY 2023–REV. A. 2

www.sg-micro.com

12 3 4 5 6 7...18

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