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LM2623QNHLTQ1 데이터시트(PDF) 8 Page - Texas Instruments |
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LM2623QNHLTQ1 데이터시트(HTML) 8 Page - Texas Instruments |
8 / 20 page OSC DRIVE REF VBE ptat SLEEP VREF SLEEP ILIM TSHUT 1 2 3 4 5 6 7 14 13 11 10 9 8 NC PGND PGND EN FREQ FB NC NC NC SGND VDD BOOT SW SW IREF SLEEP 12 Copyright © 2017, Texas Instruments Incorporated 8 LM2623-Q1 SNVSAO5 – OCTOBER 2017 www.ti.com Product Folder Links: LM2623-Q1 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated 7 Detailed Description 7.1 Overview The LM2623-Q1 device is designed to provide step-up DC-DC voltage regulation in battery-powered and low- input voltage systems. The device combines a step-up switching regulator, N-channel power MOSFET, built-in current limit, thermal limit, and voltage reference in a single 14-pin WSON package (see Functional Block Diagram). The switching DC-DC regulator boosts an input voltage between 0.9 V and 14 V to a regulated output voltage between 1.24 V and 14 V. The LM2623-Q1 starts from a low 1.1-V input and remains operational down to below 0.9 V. A high-efficiency gated-oscillator topology offers an output of up to 2 A at low step-up ratios. 7.2 Functional Block Diagram |
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