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CMPWR330 数据表(PDF) 2 Page - California Micro Devices Corp |
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CMPWR330 数据表(HTML) 2 Page - California Micro Devices Corp |
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2 / 8 page ![]() CALIFORNIA MICRO DEVICES ©2001 California Micro Devices Corp. All rights reserved. Smart OR™ is a trademark of California Micro Devices. 3/6/2001 215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com 2 CMPWR330 ABSOLUTE MAXIMUM RATINGS Parameter Rating Unit ESD Protection (HBM) 2000 V VCC, VSBY Input Voltage 6.0, GND –0.5 V VAUX Input Voltage 4.0, GND –0.5 V Temperature: Storage –40 to 150 °C Operating Ambient 0 to 70 °C Operating Junction 0 to 125 °C Power Dissipation: (Note 1) Internally Limited W OPERATING CONDITIONS Parameter Range Unit VCC , VSBY 5 ± 0.25 V VAUX 3.3 ± 0.3 V Temperature (Ambient) 0 to 70 °C Load Current 0 to 400 mA CEXT 10 ± 20% µF ELECTRICAL OPERATING CHARACTERISTICS (over operating conditions unless specified otherwise) Parameter Conditions MIN TYP MAX UNIT VOUT Regulator Output Voltage 0mA < ILOAD < 400mA 3.135 3.30 3.465 V ILIM Regulator Current Limit 500 mA IS/C Short Circuit Current VCC/SBY = 5V, Vout = 0V 150 mA VR LOAD Load Regulation VCC = 5V, ILOAD = 5 to 400mA 20 mV VR LINE Line Regulation VCC = 4.5V to 5.5V, ILOAD = 5mA 2 mV VCCSEL VCC Select Voltage VSBY or VAUX present 4.40 4.60 V VCCDES VCC Deselect Voltage VSBY or VAUX present 4.00 4.20 V VHYST Hysteresis Voltage (Note 2) VSBY or VAUX present 0.20 V RSW VAUX Switch Resistance 0.25 0.4 Ω IRCC VCC Reverse Leakage One supply input taken to IRSBY VSBY Reverse Leakage ground while the others remain 5 100 µA IRAUX VAUX Reverse Leakage at nominal voltage ICC VCC Supply Current VCC > VCCSEL, ILOAD = 0mA 0.8 1.5 mA ISBY VSBY Supply Current VCC < VCCDES, ILOAD = 0mA 0.8 1.5 mA IAUX VAUX Supply Current VAUX is selected, ILOAD = 0mA 0.2 0.30 mA IGND Ground Current VAUX is selected, (vCC/SBY = 0V) 0.2 0.30 mA VCC/SBY = 5V, ILOAD = 0mA 0.8 1.5 mA VCC/SBY = 5V, ILOAD = 400mA 1.0 2.0 mA TDISABLE Shutdown Temperature 160 °C THYST Thermal Hysteresis 20 °C Note 1: At rated load, the power dissipation will be 0.68W (1.7V x 0.4A). Under these conditions, (in a 70°C ambient), the thermal resistance from junction to ambient ( θ JA) must not exceed 80°C/W. This is typically achieved with 2 square inches of copper printed circuit board area connected to the GND pins for heat spreading, or equivalent. Note 2: The disturbance on V CC during supply changeover should be kept below the hysteresis voltage to prevent any chatter. The source resistance on the V CC supply should be kept to less than 0.3Ω to ensure precise switching. |
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