поискавой системы для электроныых деталей |
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LM3661TLX-1.40 датащи(PDF) 3 Page - National Semiconductor (TI) |
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LM3661TLX-1.40 датащи(HTML) 3 Page - National Semiconductor (TI) |
3 / 17 page Connection Diagrams 10-Bump micro SMD Package 20098804 Top View 20098805 Bottom View Ordering Information Order Number Output Voltage Package NSC Package Marking Supplied As LM3661TLX - 1.25 1.05V/1.25V 10Bump Wafer Level Chip Scale (micro SMD) SHVB 3000 Units, Tape and Reel LM3661TL - 1.25 SHVB 250 Units, Tape and Reel LM3661TLX - 1.35 1.05V/1.35V SDYB 3000 Units, Tape and Reel LM3661TL - 1.35 SDYB 250 Units, Tape and Reel LM3661TLX - 1.40 1.05V/1.40V SHCB 3000 Units, Tape and Reel LM3661TL - 1.40 SHCB 250 Units, Tape and Reel Pin Description Pin Number Name Function A1 FB Feedback Analog Input. Connect to the output at the output filter capacitor (see Typical Application Circuit) B1 V SEL Output Voltage Selection Input. Set this digital input to select the desired output voltage. Set: •V SEL = high programmed ouput voltage •V SEL = low for low programmed output voltage C1 I SEL I SEL = High (>1.2V) for set current limit to low value I SEL = Low (GND) for set current limit to high value D1 SYNC/MODE Synchronization Input. Use this digital input for frequency selection or modulation control. Set: •SYNC/MODE = high for low-noise 600 kHz PWM mode •SYNC/MODE = low for micropower linear mode •SYNC/MODE = a 500 kHz -750 kHz external oscillator for synchronization to an external clock in PWM mode. The LM3661 synchronizes with the rising edge of the external clock. D2 EN Enable Input. It has an internal pull down resistor of 1 Mohms. Set this digital input high for normal operation. For shutdown, set low. D3 PGND Power Ground C3 SW Switching Node connection to the internal PFET switch and NFET synchronous rectifier. Connect to an inductor with a saturation current rating that exceeds the peak current limit. B3 PV IN Power Supply Input to the internal PFET switch. Connect to the input filter capacitor (See Typical Application Circuit). www.national.com 3 |
Аналогичный номер детали - LM3661TLX-1.40 |
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Аналогичное описание - LM3661TLX-1.40 |
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