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AIC1630 数据表(PDF) 1 Page - Analog Intergrations Corporation |
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AIC1630 数据表(HTML) 1 Page - Analog Intergrations Corporation |
1 / 11 page AIC1630 2-Cell, Step-Up DC/DC Converter Controller Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC www.analog.com.tw DS-1630-05 TEL: 886-3-5772500 FAX: 886-3-5772510 1 FEATURES Adjustable Output Voltage with Two Resistors (AIC1630A). Power-Saving Shutdown Mode (7 µA typical). 120KHz Switching Rate. On-Chip Low Battery Detector. APPLICATIONS Palmtop & Notebook Computers. Battery Charger Supply. Cellular Telephone. LCD Contrast Supply. Flash Memory Programmer. Battery Backup Supplies. Portable Instruments. DESCRIPTION The AIC1630 is a DC-DC converter designed to drive an external power switch for more flexibility, especially in higher voltage and larger power applications. Typically six components are required to set up a step up configuration easily achieving efficiency beyond 80%. A few more components are required to set up a step down configuration delivering 4A load current with 83% typical efficiency, 86% at 2A load, and 300 µA quiescent current. The output voltage is internally set to 3V, 3.3V, 5V or externally set to an arbitrary value below breakdown voltage of the power switch. Logic- controlled shutdown mode is provided for power saving. The low battery detector can be also configured as a linear regulator. 120KHz switching rate reduces the inductor size. Inductors of 25 µH to 50µH inductance are recommended for most applications. TYPICAL APPLICATION CIRCUIT D1 1N5819 +VOUT 3.3V C1 100 Ω R3 +VIN 5nF C2 270 Ω R4 LOAD Q1 1 AIC1630 SD VIN EXT SGND VOUT LBI LBO CGND L + Note : VIN ≥ 1.8V , VOUT ≤ 7V High Efficiency Step-Up DC/DC Converter |
类似零件编号 - AIC1630 |
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类似说明 - AIC1630 |
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