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发布者:微桥 发布时间:2011-8-22 阅读:3127次    关键字: AX6616
AX6616-3A Ultra Low Dropout Linear Regulator


AX6616-3A Ultra Low Dropout Linear Regulator DataSheet

GENERAL DESCRIPTION
    The AX6616 is a 3A ultra low dropout linear regulator. This product is specifically designed to provide well supply voltage for front-side-bus termination on motherboards and NB applications. The IC needs two supply voltages, a control voltage for the circuitry and a main supply voltage for power conversion, to reduce power dissipation and provide extremely low dropout. The AX6616 integrates many functions. A Power-On-Reset (POR) circuit monitors both supply voltages to prevent wrong operations. A thermal shutdown and current limit functions protect the device against thermal and current over-loads. A POK indicates the output status with time delay which is set internally. It can control other converter for power sequence. The AX6616 can be enabled by other power system. Pulling and holding the EN pin below 0.3V shuts off the output.
    The AX6616 is available in SOP-8L-EP and TDFN-10L packages which features small size as an Exposed Pad to reduce the junction-to-case resistance, being applicable in 2~3W applications.

FEATURES
- Ultra Low Dropout - 0.23V(typical) at 3A Output Current
- Low ESR Output Capacitor (Multi-layer Chip Capacitors (MLCC)) Applicable
- 0.8V Reference Voltage
- Fast Transient Response
- Adjustable Output Voltage by External Resistors
- Power-On-Reset Monitoring on Both VCNTL and VIN Pins
- Internal Soft-Start
- Under-Voltage Protection
- Current-Limit and Thermal Shutdown Protection
- Power-OK Output with a Delay Time
- SOP-8L-EP and TDFN-10L (3mm*3mm) Pb-Free Package.

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