P1986 Unisonic Technologies, P1986 Datasheet
P1986
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P1986 Summary of contents
Page 1
... OCP happens, the operation frequency will be reduced. In application, the UTC P1986 is suitable for portable devices when it works as an ideal power supply in SOP-8L package. There is an internal P-channel power MOS, a coil, capacitors inside and a diode connected externally that makes these ICs step-down switching regulators ...
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... P1986 PIN CONFIGURATION PIN DESCRIPTION PIN NO. PIN NAME 1 FB Feedback pin Power-off pin normal operation (Step-down) L: Step-down operation stopped (All circuits deactivated) 3 COMP Compensation pin power supply pin Switch pin. Connect external inductor/diode here Switch pin. Connect external inductor/diode here. ...
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... P1986 BLOCK DIAGRAM EN Reference Voltage REF UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw LINEAR INTEGRATED CIRCUIT COMP Current Limit Lateh PWM SS OSC V CC Driver QW-R103-046.B ...
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... P1986 ABSOLUTE MAXIMUM RATING PARAMETER V Pin Voltage CC Feedback Pin Voltage ON/OFF Pin Voltage Switch Pin Voltage Operating Supply Voltage Power Dissipation Storage Temperature Operating Temperature Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. ...
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... P1986 TYPICAL APPLICATION CIRCUIT MLCC VCC ON/OFF R4 100K C2 C3 22µF 0.1µF C6 0.1µF option V (V) C1 (nF UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw LINEAR INTEGRATED CIRCUIT 22µ COMP B340 (μF) C7 (nF ...
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... P1986 TYPICAL CHARACTERISTICS 200 0 -200 V =19V, V =5V, I =3A CC OUT OUT Time (2μs/div) Efficiency vs. Load Current 100 =12V =19V 0.5 1.0 1.5 0 Load Current, I UTC assumes no responsibility for equipment failures that result from using products at values that ...