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LP3990SDX-2.8 Datasheet(PDF) 2 Page - National Semiconductor (TI) |
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LP3990SDX-2.8 Datasheet(HTML) 2 Page - National Semiconductor (TI) |
2 / 13 page Pin Descriptions Packages Pin No Symbol Name and Function LLP micro SMD SOT23-5 5A2 3 V EN Enable Input; Enables the Regulator when ≥ 0.95V. Disables the Regulator when ≤ 0.4V. Enable Input has 1M Ω pulldown resistor to GND. 2 A1 2 GND Common Ground. Connect to Pad. 1B1 5 V OUT Voltage output. A 0.47µF Low ESR Capacitor should be connected to this Pin. Connect this output to the load circuit. 6B2 1 V IN Voltage Supply Input. A 1.0µF capacitor should be connected at this input. 3 4 N/C No Connection. Do not connect to any other pin. 4 N/C No Connection. Do not connect to any other pin. Pad GND Common Ground. Connect to Pin 2. Connection Diagrams Micro SMD, 4 Bump Package 20076803 See NS package number TLA04 LLP-6 Package 20076806 See NS package number SDE06A www.national.com 2 |
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