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AS1345 数据表(PDF) 7 Page - ams AG |
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AS1345 数据表(HTML) 7 Page - ams AG |
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7 / 29 page  ams Datasheet, Confidential: 2013-Nov [1-51] AS1345 – 7 El ec trical Charac t e ristics All limits are guaranteed. The parameters with Min and Max values are guaranteed by production tests or SQC (Statistical Quality Control) methods. Figure 7: VDD = VSHDNN = VSWIN = 3.7V, VOUT = 15V, CIN = COUT = 10μF, typical values @ TAMB = +25ºC (unless otherwise specified) Symbol Parameter Conditions Min Typ Max Units TAMB Operating temperature range -40 +85 °C TJ Operating junction temperature range -40 +110 °C Input VDD Supply voltage range SWIN connected to VDD 2.9 5.0 V Minimum startup voltage VDD = SWIN 2.7 V VUVLO VDD undervoltage lockout VDD decreasing (50mV Hysteresis) 2.7 V Regulation VOUT Adjustable output voltage range External FB divider 5 18 V Feedback voltage tolerance Tolerance of FB resistors not included -3 +3 % Fixed output voltage Internal FB divider 12 V 15 17 VFB Feedback voltage For adjustable VOUT only 1.25 V Feedback input current 10 1000 nA Line regulation VDD = 3.5V to 3.7V 200 mV Load regulation VOUT = 15V, ILOAD = 0mA to 5mA 50 mV η Efficiency L = 22μH, VDD = VSWIN = 3.7V, VOUT = 15V, ILOAD = 10mA 90 % Electrical Characteristics |
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