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LB20164R7M Datasheet(PDF) 9 Page - Linear Technology |
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LB20164R7M Datasheet(HTML) 9 Page - Linear Technology |
9 / 12 page 9 LT1931/LT1931A 1931fa TYPICAL APPLICATIO S VIN VIN 5V VOUT –12V 150mA 1931 TA02 SW L1A 10 µH L1B 10 µH D1 GND LT1931 C1: TAIYO YUDEN X5R JMK212BJ475MG C2: TAIYO YUDEN X5R TMK316BJ105ML C3: TAIYO YUDEN X5R EMK325BJ106MM D1: ON SEMICONDUCTOR MBR0520 L1: SUMIDA CLS62-100 C1 4.7 µF C3 10 µF C2 1 µF R2 10k R1 84.5k NFB SHDN 5V to –12V Inverting Converter LOAD CURRENT (mA) 0 50 60 70 80 25 50 75 100 1931 TA03 125 90 100 55 65 75 85 95 150 Efficiency VIN VIN 5V VOUT –5V 300mA 1931 TA04 SW L1 10 µH L2 10 µH D1 GND LT1931 C1: TAIYO YUDEN X5R JMK212BJ475MG C2: TAIYO YUDEN X5R LMK212BJ105MG C3: TAIYO YUDEN X5R JMK212BJ226MM D1: ON SEMICONDUCTOR MBR0520 L1, L2: MURATA LQH3C100K04 C1 4.7 µF C3 22 µF C2 1 µF R2 10k R1 29.4k 220pF NFB SHDN 5V to – 5V Inverting Converter Using Uncoupled Inductors VIN VIN 5V VOUT –5V 300mA 1931 TA05a SW L1 4.7 µH L2 4.7 µH D1 GND LT1931A C1: TAIYO YUDEN X5R JMK212BJ475MG C2: TAIYO YUDEN X5R LMK212BJ105MG C3: TAIYO YUDEN X5R JMK212BJ475MG D1: ON SEMICONDUCTOR MBR0520 L1, L2: MURATA LQH3C4R7M24 C1 4.7 µF C3 4.7 µF C2 1 µF R2 10k R1 28.7k C4 180pF NFB SHDN LOAD CURRENT (mA) 0 50 55 65 70 75 100 200 250 1931 TA05b 60 80 50 150 300 350 2.2MHz, 5V to – 5V Inverting Converter Efficiency |
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