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LM27761 数据表(PDF) 9 Page - Texas Instruments |
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LM27761 数据表(HTML) 9 Page - Texas Instruments |
9 / 29 page VIN C1+ GND C1- CPOUT Current Limit VOUT VFB Negative Bandgap EN LPF 2-MHz Oscillator Switch Array Switch Drivers Reference LPF LDO 9 LM27761 www.ti.com SNVSA85B – OCTOBER 2015 – REVISED FEBRUARY 2016 Product Folder Links: LM27761 Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated 7 Detailed Description 7.1 Overview The LM27761 regulated charge-pump voltage converter inverts a positive voltage in the range of 2.7 V to 5.5 V to a negative voltage in the range of –1.5 V to –5 V. The negative LDO (low drop-out regulator), at the output of the charge-pump voltage converter, allows the device to provide a very low noise output, low output-voltage ripple, high PSRR, and low line and load transient responses. The output is externally configurable with gain- setting resistors. The LM27761 uses four low-cost capacitors to deliver up to 250 mA of output current. 7.2 Functional Block Diagram |
类似零件编号 - LM27761 |
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类似说明 - LM27761 |
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