Exar Corporation XR76203
The XR76203, XR76205 and XR76208 are synchronous step-down regulators combining the controller, drivers, bootstrap diode and MOSFETs in a single package for point-of-load supplies. The XR76203, XR76205 and XR76208 have load current ratings of 3A, 5A and 8A respectively. With a proprietary emulated current mode Constant On-Time (COT) control scheme, the XR76203, XR76205 and XR76208 provide extremely fast line and load transient response using ceramic output capacitors.| Part No. | XR76203 |
|---|---|
| Datasheet | XR76203 Download |
| Manufacturer |  Exar Corporation |
| Description | 3A/5A/8A Synchronous Step Down COT Regulator |
| Buy | Stock & Price |
GENERAL DESCRIPTION
A wide 5V to 40V input voltage range allows for single supply operation from industry standard 24V ±10%, 18V-36V, and rectified 18VAC and 24VAC rails. They require no loop compensation, simplifying circuit implementation and reducing overall component count. The control loop also provides 0.07% load and 0.15% line regulation and maintains constant operating frequency. A selectable power saving mode allows the user to operate in discontinuous conduction mode (DCM) at light current loads thereby significantly increasing the converter efficiency. A host of protection features, including over-current, over-temperature, short-circuit and UVLO, helps achieve safe operation under abnormal operating conditions. The XR76203/5/8 are available in a RoHS-compliant, green/halogen-free space-saving QFN 5x5mm package.FEATURES
● Controller, drivers, bootstrap diode and MOSFETs integrated in one package● 3A, 5A and 8A Step Down Regulators Wide 5V to 40V Input Voltage Range >0.
