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English1.5A 1.5MHz Synchronous Buck Converter CXSD6126 is a high-efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. The device is available in an adjustab
The CXSD6126 is a high-efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. The device is available in an adjustable version. Supply current with no load is 40uA and drops to <1uA in shutdown. The 2.5V to 6V input voltage range makes the CXSD6126 ideally suited for single Li-Ion battery powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. PWM/PFM mode operation provides very low output ripple voltage for noise sensitive applications. Switching frequency is internally set at 1.5MHz, allowing the use of small surface mount inductors and capacitors. Low output voltages are easily supported with the 0.6V feedback reference voltage. The CXSD6126 is available in SOT23-5 package.
High Efficiency: Up to 96%
2.5V to 6V Input Voltage Range
1.5MHz Constant Frequency Operation
No Schottky Diode Required
Low Dropout Operation:100% Duty Cycle
PFM Mode for High Efficiency in Light Load
Over temperature Protected
Low Quiescent Current: 40μA
Short Circuit Protection
Inrush Current Limit and Soft Start
Available in SOT23-5
Cellular and Smart Phones
Wireless and DSL Modems
PDAs
Portable Instruments
Digital Still and Video Cameras
PC Cards
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降压型DC/DC转换器(DC/DC Step-down Converter) | |||||||
Part No. | Power switching | MODE | VIN | VOUT | IQ | FOSC | Eff. |
Built-in MOSFETSynchronous | PWM/PFM | Max 7V | ADJ | 35μA | 1.5MHz | 96% | |
Built-in MOSFETSynchronous | PWM/PFM | 2.6~6V | ADJ | 40μA | 1.5MHz | 96% | |
Built-in MOSFET Synchronous | PWM/PFM | 2.6~7V | ADJ | 50μA | 1.5MHz | 97% | |
Built-in MOSFET Synchronous | PWM/PFM | 2.5~6V | ADJ | 40μA | 1.5MHz | 96% | |
Built-in MOSFET Synchronous | PWM/PFM | 2.5~5.5V | ADJ | 50μA | 1.3MHz | 97% | |
Built-in MOSFET Synchronous | PWM/PFM | 2.6~6V | ADJ | 30μA | 3MHz | 96% | |
Built-in MOSFET Synchronous | PWM/PFM | 2.6~5.5V | ADJ | 50μA | 1.4MHz | 97% | |
Built-in MOSFET Synchronous | PWM/PFM | 3.5~16V | ADJ | 0.4mA | 600KHz | 96% | |
Built-in MOSFET Synchronous | PWM/PFM | 3.5~16V | ADJ | 0.4mA | 600KHz | 96% | |
Built-in MOSFET Synchronous | PWM/PFM | 4.2~18V | ADJ | 0.8mA | 500KHz | 96% | |
Built-in MOSFET Synchronous | PWM/PFM | 4.7~20V | ADJ | 50μA | 500KHz | 95% | |
Built-in MOSFET Synchronous | PWM/PFM | 4.7~20V | ADJ | 50μA | 500KHz | 95% | |
Built-in MOSFET Synchronous | PWM/PFM | 4.5~20V | ADJ | 50μA | 410KHz | 95% | |
Built-in MOSFET Synchronous | PWM/PFM | 4.5~18V | ADJ | 80μA | 420KHz | 95% | |
Built-in MOSFET Synchronous | PWM/PFM | 4.5~18V | ADJ | 80μA | 420KHz | 95% | |
Built-in MOSFET Synchronous | PWM/PFM | 4.5~18V | ADJ | 80μA | 420KHz | 95% | |
Built-in MOSFET | PWM/PFM | 4~24V | ADJ | 0.6mA | 1.4MHz | 90% | |
Built-in MOSFET | PWM/PFM | 4~38V | ADJ | 0.6mA | 660KHz | 92% | |
Built-in MOSFET | PWM/PFM | 4~38V | ADJ | 0.6mA | 660KHz | 92% | |
Built-in MOSFET Synchronous | PWM/PFM | 4~40V | ADJ | 50μA | 2MHz | 93% | |
Built-in MOSFET | PWM/PFM | 4.2~40V | ADJ | 200μA | 1.8MHz | 90% | |
Built-in MOSFET Synchronous | PWM/PFM | 4.5~24V | ADJ | 50μA | 500KHz | 94% | |
Built-in MOSFET Synchronous | PWM | 5~20V | 0.923~15V ADJ | 60μA | 360KHz | 94% | |
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