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Controller IC Chip - RT8243BZQW RT8243B ( 7A ** ) QFN 20 Chip for laptop - Integrated Laptop Chip (Code 1-CHIP0954)

Controller IC Chip - RT8243BZQW RT8243B ( 7A ** ) QFN 20 Chip for laptop - Integrated Laptop Chip (Code 1-CHIP0954)
Controller IC Chip - RT8243BZQW RT8243B ( 7A ** ) QFN 20 Chip for laptop - Integrated Laptop Chip (Code 1-CHIP0954)
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  • Stock: In Stock
  • Brand: Unbranded
  • Model: 1-CHIP0954
  • SKU: 1-CHIP0954
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We send via DHL, UPS, USPS, FEDEX, Hellenic Greek Post, during the same day of the order placement. (Weekends are excluded).The average time of delivery for the United States is 13 to 18 days while for Europe is 5 to 7 days. Return Policy.

Our products are new and are shipped immediately. They have a 2 year warranty (except for batteries) and free shipping. Service line +302109247000 09:00-19:00 Mon-Fri. Our prices are without hidden charges and fees. We comply with the consumer rights directive 2011/83/EU. Any reference to the trademarks of the laptop manufacturers Toshiba, Lenovo, Acer, MSI, Asus, HP etc. is intended solely for the purpose of identifying the laptop manufacturer. Our Company and this website are not affiliated distributors with these manufacturers, the products offered for sale through our website are manufactured as high quality replacements by third party manufacturers. The products provided by our Company are not authentic. But they are worthy replacements and are sold for use in laptops of all manufacturers Toshiba Lenovo Acer MSI Asus HP etc.

Controller IC Chip - RT8243BZQW RT8243B ( 7A ** ) QFN 20 Chip for laptop- Integrated portable calculator chip(SKU.1-CHIP0954)

The RT8243A/B/C is a dual step down, Switch Mode Power Supply (SMPS) controller which generates logic supply voltages for battery powered systems. It includes two Pulse Width Modulation (PWM) controllers adjustable from 2V to 5.5V and also two fixed 5V/3.3V linear regulators. One of the controllers (LDO5) provides automatic switch over to the BYP1 input connected to the main SMPS1 output for maximized efficiency. An optional external charge pump can be monitored through SECFB (RT8243B/C). Other features include on board power up sequencing, a power good output, internal softstart, and a soft discharge output that prevents negative voltage during shutdown. A constant on-time PWM control scheme operates WITHOUT sense resistors and assures fast load transient response while maintaining nearly constant switching frequency. To eliminate noise in audio applications, an ultrasonic mode is included, which maintains the switching frequency above 25kHz. Moreover, a diode emulation mode maximizes efficiency for light load applications. The SMPS1/SMPS2 switching frequency can be adjustable from 200kHz/233kHz to 400kHz/466kHz respectively. The RT8243A/B/C is available in a WQFN-20L 3x3 package, and operates over an extended temperature range from −40°C to 85°C.

5.5V to 25V Input Voltage Range  2V to 5.5V Output Voltage Range  No Current Sense Resistor Needed  5V/3.3V Linear Regulators  4700ppm/°C RDS(ON) Current Sensing  Internal Current Limit Soft-Start and Soft Discharge Output  Built In OVP/UVP/OCP  Selectable Operation Mode with Switcher Enable Control (RT8243A)  SECFB Input Maintains Charge Pump Voltage (RT8243B/C)  Power Good Indicator (RT8243B/C includes SECFB)  RoHS Compliant and Halogen Free

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Please check the IC Number and match with your existing Product.

When you receive before using it, please confirm the chip you received is brand new as described,if you suspect the chip is not new or not as described.

Please don't use it and contact us immediately.

Please make sure you have advanced soldering skill to solder the chips that you will order.

Once it has been used, no return will be accepted.