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ADP1614-1.3-EVALZ データシート(PDF) 1 Page - Analog Devices |
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ADP1614-1.3-EVALZ データシート(HTML) 1 Page - Analog Devices |
1 / 16 page 650 kHz/1.3 MHz, 4 A, Step-Up, PWM, DC-to-DC Switching Converter Data Sheet ADP1614 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2012 Analog Devices, Inc. All rights reserved. FEATURES Adjustable current limit, up to 4 A 2.5 V to 5.5 V input voltage range 650 kHz or 1.3 MHz fixed frequency option Adjustable output voltage, up to 20 V Adjustable soft start Undervoltage lockout Thermal shutdown 3 mm × 3 mm, 10-lead LFCSP Supported by ADIsimPower design tool APPLICATIONS TFT LCD bias supplies Portable applications Industrial/instrumentation equipment GENERAL DESCRIPTION The ADP1614 is a step-up, dc-to-dc switching converter with an integrated power switch capable of providing an output voltage as high as 20 V. The ADP1614 is available with a pin- adjustable current limit that is set via an external resistor. The boost switching frequency is fixed to either 650 kHz or 1.3 MHz. With a package height of 0.8 mm, the ADP1614 is optimal for space constrained applications, such as portable devices or thin film transistor (TFT) liquid crystal displays (LCDs). The ADP1614 operates in current-mode pulse-width modulation (PWM) with up to 94% efficiency. Adjustable soft start prevents inrush currents when the part is enabled. The PWM current-mode architecture allows excellent transient response, easy noise filtering, and the use of small, cost-saving external inductors and capacitors. Other key features include undervoltage lockout (UVLO), thermal shutdown (TSD), and logic controlled enable. The ADP1614 is available in a Pb-free, 10-lead lead frame chip scale package (LFCSP). TYPICAL APPLICATIONS CIRCUIT ADP1614 8 3 9 10 6 2 1 VIN EN CLRES SS SW 7 SW FB COMP ON OFF 5 GND 4 GND 11 EP VOUT VIN L1 CIN CSS COUT CCOMP RCOMP RCL R1 R2 D1 Figure 1. Step-Up Regulator Configuration |
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同様の説明 - ADP1614-1.3-EVALZ |
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