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AN8018SA Arkusz danych(PDF) 1 Page - Panasonic Semiconductor |
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AN8018SA Arkusz danych(HTML) 1 Page - Panasonic Semiconductor |
1 / 26 page Voltage Regulators 1 AN8018SA 1.8-volt 2-channel step-up, step-down, or inverting DC-DC converter control IC s Overview The AN8018SA is a two-channel PWM DC-DC con- verter control IC that features low-voltage operation. This IC can obtain the step-up, step-down and invert- ing voltages with a small number of external components. The minimum operating voltage is as low as 1.8 V so that it can operate with two dry batteries. In addition, since it uses the 16-pin surface mounting type package with 0.65 mm pitch, it is suitable for miniaturized highly efficient potable power supply. s Features • Wide operating supply voltage range (1.8 V to 14 V) • Incorporating a high precision reference voltage circuit (allowance: ± 2%) • Control in a wide output frequency range is possible (20 kHz to 1 MHz). • Built-in wideband error amplifier (single gain bandwidth 10 MHz typical) • Built-in timer latch short-circuit protection circuit (charge current 1.1 µA typical) • Incorporating the under-voltage lock-out circuit (U.V.L.O.) (circuit operation-starting voltage 1.67 V typical) • Dead-time is variable. • Flatness of switching current can be obtained by staggering the turn-on timing of each channel. • Built-in unlatch function When DT1 pin is low level, or DT2 pin is high level, independent turn-off is possible. • Incorporating a on/off control function (active-high control input, standby mode current: 5 µA maximum) • Parallel operation is possible. • Output block • Totem pole 1 output • Output source-current: −50 mA maximum (Constant current output with a less supply voltage fluctuation is possible by connecting an external resistor to pin 11) • Output sink-current: +80 mA maximum • Open-collector 1 output • Output current: 50 mA maximum s Applications • LCD displays, digital still cameras, and PDAs Unit: mm SSOP016-P-0225A 18 0.5 ±0.2 (1.0) 0 ° to 10° 16 5.0 ±0.2 9 0.65 (0.225) 0.22 +0.10 − 0.05 Seating plane |
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Podobny opis - AN8018SA |
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