Datasheet > RT9921

RT9921

更新时间： 2024-04-09 18:58:47

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
15页	241K
描述
Integrated Multi-Channel DC/DC Converter for TFT LCD Panels

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RT9921 数据手册

RT9921

Parameter

VCOM Buffer

Symbol

Test Condition

Min

Typ

Max

Unit

Supply Voltage Range

Supply Current

AVDD

0.8

1.5

I_OP

Input Offset Voltage

Input Bias Current

V_OS

I_BIAS

V_COM= AVDD/2, T_A= 25C

17

I_OUT= 100A

I_OUT= 75mA

I_OUT= 100A

I_OUT= 75mA

AVDD 20 AVDD 5

Output Voltage Swing High

Output Voltage Swing Low

Short-Circuit Current

V_OH

AVDD 1.5

V_OL

1.5

180

Source

To AVDD/2

100

230

MHz

V/s

Sink

-3dB Bandwidth

F_3dB

GBW

Gain Bandwidth Product

Slew Rate

Gate-High Regulator

Feedback Reference Voltage V_FBP

No Load

1.216

1.240

1.264



R_{ON_P}V_AVDD= 12V

DRVP Switch On-Resistance

Switching Frequency

R_{ON_N}V_AVDD= 12V

f_SW



0.5 x f_OSC

MHz

Note 1. Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device. These are for

stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the

operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended

periods may remain possibility to affect device reliability.

Note 2. θ_JAis measured in the natural convection at T_A= 25°C on a high effective thermal conductivity test board of

JEDEC 51-7 thermal measurement standard.

Note 3. Devices are ESD sensitive. Handling precaution is recommended.

Note 4. The device is not guaranteed to function outside its operating conditions.

is a registered trademark of Richtek Technology Corporation.

DS9921-04 May 2014

www.richtek.com

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