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MIC2291BD5 Datasheet(PDF) 2 Page - Micrel Semiconductor |
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MIC2291BD5 Datasheet(HTML) 2 Page - Micrel Semiconductor |
2 / 9 page MIC2291 Micrel M9999-081104 2 August, 2004 Pin Description Pin Number Pin Number TSOT-23-5 2mm ××××× 2mm MLF™ Pin Name Pin Function 1 7 SW Switch node (Output): Internal power BIPOLAR collector. 2 GND Ground (Return): Ground. 3 6 FB Feedback (Input): Output voltage sense node. Connect the cathode of the LED to this pin. Connect current set resistor from this pin to ground. 4 3 EN Enable (Input): Logic high ( ≥1.5V) enables regulator. Logic low (≤0.4V) shuts down regulator. 5 2 VIN Supply (Input): Input Voltage. — 1 OVP Overvoltage protection (Input): Connect to the output to clamp the maximum output voltage. — 4 AGND Analog ground. Internally connected to ground. — 8 PGND Power ground. — 5 NC No connect (no internal connection to die). — EP GND Ground (Return): Exposed backside pad. Pin Configuration FB GND EN VIN SW 3 1 5 2 4 TSOT-23-5 (BD5) OVP VIN EN AGND PGND SW FB NC 1 2 3 4 8 7 6 5 EP 8-Pin MLF™ (BML) (Top View) Fused Lead Frame Ordering Information Marking Overvoltage Junction Part Number Code Protection Temp. Range Package Lead Finish MIC2291BD5 SSAA —–40 °C to 125°C Thin SOT-23-5 Standard MIC2291YD5 SSAA —–40 °C to 125°C Thin SOT-23-5 Pb-Free MIC2291-15BML STA 15V –40 °C to 125°C 2mm × 2mm MLF™ Standard MIC2291-15YML STA 15V –40 °C to 125°C 2mm × 2mm MLF™ Pb-Free MIC2291-34BML STC 34V –40 °C to 125°C 2mm × 2mm MLF™ Standard MIC2291-34YML STC 34V –40 °C to 125°C 2mm × 2mm MLF™ Pb-Free |
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