DataSheet.jp

RT9266B の電気的特性と機能

RT9266BのメーカーはRichtekです、この部品の機能は「Step-Up DC/DC Converter」です。


製品の詳細 ( Datasheet PDF )

部品番号 RT9266B
部品説明 Step-Up DC/DC Converter
メーカ Richtek
ロゴ Richtek ロゴ 




このページの下部にプレビューとRT9266Bダウンロード(pdfファイル)リンクがあります。

Total 13 pages

No Preview Available !

RT9266B Datasheet, RT9266B PDF,ピン配置, 機能
RT9266B
Tiny Package, High Efficiency, Step-Up DC/DC Converter
General Description
The RT9266B is a compact, high efficiency, and low
voltage step-up DC/DC converter with an Adaptive
Current Mode PWM control loop, includes an error
amplifier, ramp generator, comparator, switch pass
element and driver in which providing a stable and high
efficient operation over a wide range of load currents. It
operates in stable waveforms without external
compensation.
The low start-up input voltage below 1V makes RT9266B
suitable for 1 to 4 battery cells applications with a 500mA
internal switch. The 550kHz high switching rate minimized
the size of external components. Besides, the 25μA low
quiescent current together with high efficiency maintains
long battery lifetime.
Ordering Information
RT9266B
Package Type
E : SOT-23-6
Lead Plating System
P : Pb Free
G : Green (Halogen Free and Pb Free)
Note :
Richtek products are :
` RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
Features
z 1V Low Start-up Input Voltage at 1mA Load
z 25μA Quiescent (Switch-off) Supply Current
z Zero Shutdown Mode Supply Current
z 90% Efficiency
z 550kHz Switching Frequency at 3.3V VDD
z Providing Flexibility for Using Internal and External
Power Switches
z Small SOT-23-6 Package
z RoHS Compliant and 100% Lead (Pb)-Free
Applications
z PDA
z DSC
z LCD Panel
z RF-Tags
z MP3
z Portable Instrument
z Wireless Equipment
Pin Configurations
(TOP VIEW)
FB VDD LX
654
23
EN EXT GND
SOT-23-6
DS9266B-11 April 2011
www.richtek.com
1

1 Page





RT9266B pdf, ピン配列
Functional Pin Description
Pin Name Pin Function
EN Chip Enable (Active High)
EXT Output Pin for Driving External NMOS
GND
Ground
LX Pin for Switching
VDD
Input Positive Power Pin of RT9266B
FB Feedback Input Pin
Internal Reference Voltage for the Error Amplifier is 1.25V.
RT9266B
Function Block Diagram
VDD
FB
EN
RT9266B
1.25V
VDD
-
+
Loop Control Circuit
Q1
N MOS
R1
R2
Q3
N MOS
Over Temp.
Detector
Shut Down
EXT
LX1
GND
DS9266B-11 April 2011
www.richtek.com
3


3Pages


RT9266B 電子部品, 半導体
RT9266B
LX & Output Ripple
LX & Output Ripple
VIN = 1V, VOUT = 3.3V @ 10mA
Time (1us/Div)
LX & Output Ripple
VIN = 1V, VOUT = 3.3V @ 50mA
Time (1us/Div)
LX & Output Ripple
VIN = 1.5V, VOUT = 3.3V @ 10mA
Time (1us/Div)
LX & Output Ripple
VIN = 1.5V, VOUT = 3.3V @ 100mA
Time (1us/Div)
LX & Output Ripple
www.richtek.com
6
VIN = 2V, VOUT = 3.3V @ 10mA
Time (1us/Div)
VIN = 2V, VOUT = 3.3V @ 100mA
Time (1us/Div)
DS9266B-11 April 2011

6 Page



ページ 合計 : 13 ページ
 
PDF
ダウンロード
[ RT9266B データシート.PDF ]


データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。


共有リンク

Link :


部品番号部品説明メーカ
RT9266

Step-up DC/DC Converter

Richtek
Richtek
RT9266B

Step-Up DC/DC Converter

Richtek
Richtek


www.DataSheet.jp    |   2020   |  メール    |   最新    |   Sitemap