AAT2614 Step-Down DC/DC Converter with Quad High PSRR LDOs
The AAT2614 is a multiple rail power management IC. It integrates a 600mA high-frequency switching-converter and four 300mA linear regulators. The switching power supply is a highly-integrated monolithic step-down converter operating at 1.7MHz, achieving high efficiency with small external components. The four linear regulators are high PSRR low dropout regulators (LDOs) providing accurate regulation and excellent transient response. The step-down converter and the four LDOs are all fixed voltage outputs of seven combinations for 1V, 1.2V, 1.3V, 1.8V, 2.8V, 3.0V and 3.3V. Integrated over-current or over-temperature protection circuitry becomes active when overload or over-temperature fault occurs and the AAT2614 recovers automatically when the fault is removed. The AAT2614 is available in a Pb-free, thermally enhanced 20-pin TQFN33 package and a 16-bump 0.4 pitch CSP package.
技术特性
- Current Mode Control DC/DC Converter:
- Fixed Factory Programmable Output Up to 600mA
- 1.7MHz Switching Frequency
- Up to 90% Efficiency
- Integrated Switching Power FETS
- Integrated Compensation Network
- Internal Current Limit
- 4 Low Dropout Regulators with Separate Enable Pins:
- 300mA per Channel
- High PSRR
- Factory Programmable Output
- Integrated Soft-Start
- Over-Current Protection
- Over-Thermal Protection
- TQFN33-20 and WLCSP-16 Packages
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应用领域 APPLICATION
- Cellular Phones
- I/O Power
- Memory Power
- Processor Core Power
- Smart Handheld Devices
订购信息 Ordering Information
AAT2614 典型应用
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