 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
RT9273 Datasheet(PDF) 1 Page - Richtek Technology Corporation |
|
|
|||||||||||||||||||||||||||||
RT9273 Datasheet(HTML) 1 Page - Richtek Technology Corporation |
|
|
1 / 14 page  RT9273 Preliminary 1 DS9273-09 August 2007 www.richtek.com Pin ConFigurations High Performance, OLED + LED Driver for Dual Panel Mobile Phone Ordering Information (TOP VIEW) VDFN-10L 3x3 General Description The RT9273 is a high efficiency step-up DC-DC converter specifically designed for dual panel mobile phone applications. According to SP status, RT9273 can either regulates output current flowing through series-connected LEDs or regulate output voltage applying to OLED with a common output LC filter. This along with compact VDFN-10L 3x3 package and high switching frequency allows less part count and smaller external components for space and cost saving. Pulling low EN pin shuts down the chip and reduces the supply current to less than 1 μA. The EN pin also accepts PWM signal for LED brightness dimming control. The averaged LED current is well proportional to the duty cycle of the PWM signal. The internal soft start reduces inrush current during EN turning on or PWM dimming control. Other features include OVP, OCP and OTP. OVP prevents the damages in case of feedback loop open. Features Lion-Battery operating Range : 2.7V to 4.5V Maximum Output Voltage Up to 16V Share One Set of Inductor and Schottky Diode for 2 Channels Programmable Dimming Function by EN pin with 200Hz to 1kHz Internal Soft-Start Function to Avoid PWM Dimming Noise. Zero Shut Down Supply Current Complete Protection : OVP, OCP, OTP and SS RoHS Compliant and 100% Lead (Pb)-Free Applications Dual panel mobile phone, with LED backlight Marking Information For marking information, contact our sales representative directly or through a Richtek distributor located in your area, otherwise visit our website for detail. Note : Richtek Pb-free and Green 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. 100% matte tin (Sn) plating. RT9273 Package Type QV : VDFN-10L 3x3 (V-Type) Operating Temperature Range P : Pb Free with Commercial Standard G : Green (Halogen Free with Commer- cial Standard) GND FB2 CH1 VCC LX SP OVP FB1 EN CH2 9 8 7 1 2 3 4 5 10 6 11 |
Similar Part No. - RT9273 |
|
Similar Description - RT9273 |
|
|
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
