RICHTEK RT8223B DS=CA DS=CF DS=BJ DS=…. IC CHIP
£5.99
Condition: New
Out of stock
- Size Guide
Size Guide
Size Chest Waist Hips XS 34 28 34 S 36 30 36 M 38 32 38 L 40 34 40 XL 42 36 42 2XL 44 38 44 All measurements are in INCHES
and may vary a half inch in either direction.
Size Chest Waist Hips 2XS 32 26 32 XS 34 28 34 S 36 30 36 M 38 32 38 L 40 34 40 XL 42 36 42 All measurements are in INCHES
and may vary a half inch in either direction.
Size Chest Waist Hips XS 34 28 34 S 36 30 36 M 38 32 38 L 40 34 40 XL 42 36 42 2XL 44 38 44 All measurements are in INCHES
and may vary a half inch in either direction.
- Delivery & Return
Delivery
We ship worldwide (except batteries). Order will be shipped by shipping method chosen at the checkout. Always free shipping for multiple item orders over £200. During holidays and summer periods the delivery time may be longer than normal.Return
Chipbay will accept exchanges and returns of purchased goods within 30 days of the date of purchase (14 days during the sales period). Your return will usually be processed within 1-3 days. We’ll send you a Return Notification email to notify you once the return has been completed. Please allow 1-3 business days for refunds to be received to the original form of payment once the return has been processed.Help
Give us a shout if you have any other questions and/or concerns.
Email: [email protected]
Phone: +44 1733806223
High Efficiency, Main Power Supply Controller for Notebook Computers
DS8223B Datasheet
The RT8223A/B dual step-down, switch-mode power-supply controller generates logic-supply voltages in battery-powered systems. The RT8223A/B includes two pulse-width modulation (PWM) controllers fixed at 5V/3.3V or adjustable from 2V to 5.5V. This device also features 2 linear regulators providing fixed 5V and 3.3V outputs. The linear regulator each provides up to 70mA output current with automatic linear-regulator bootstrapping to the PWM outputs. The RT8223A/B includes on-board power-up sequencing, the power good output, internal soft-start, and internal soft-discharge output that prevents negative voltages on shutdown.
A constant on-time PWM control scheme operates without sense resistor and provides 100ns response to load transients while maintaining a relatively constant switching frequency. The unique ultrasonic mode maintains the switching frequency above 25kHz, which eliminates noise in audio applications. Other features include diode-emulation mode (DEM), which maximizes efficiency in light-load applications, and fixed-frequency PWM mode, which reduces RF interference in sensitive application.
24 PIN
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