aoz1281di Alpha & Omega Semiconductor, aoz1281di Datasheet
aoz1281di
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aoz1281di Summary of contents
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General Description The AOZ1281 is a high efficiency, simple to use, 1.8 A buck regulator flexible enough to be optimized for a variety of applications. The AOZ1281 works from input voltage range, and provides ...
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... Ordering Information Part Number Ambient Temperature Range AOZ1281DI AOS Green Products use reduced levels of Halogens, and are also RoHS compliant. Please visit www.aosmd.com/web/quality/rohs_compliant.jsp Pin Configuration Pin Description Pin Number Pin Name 1 LX PWM output connection to inductor VIN Supply voltage input. Range from When VIN rises above the UVLO threshold the device starts up ...
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Absolute Maximum Ratings Exceeding the Absolute Maximum Ratings may damage the device. Parameter Supply Voltage ( GND EN to GND FB to GND BST to GND Junction Temperature ( Storage Temperature ( ...
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Block Diagram Enable Softstart EN Detect FB – + 0.8V Amplifier Rev. 1.0 June 2011 VIN Regulator Current + Sense Ramp OC Generator CLK OSC PWM Logic – Error + PWM Comparator GND www.aosmd.com AOZ1281 BST BST LDO Driver LX ...
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Typical Performance Characteristics = 3 4.7 μ μ μF, T Circuit of Figure OUT Light Load Operaiton 500ns/div Startup to Full Load 2ms/div 50% ...
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Efficiency 0.2 Detailed Description The AOZ1281 is a current-mode step down regulator with integrated high side NMOS switch. It operates from input voltage range and ...
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Output Voltage Programming Output voltage can be set by feeding back the output to the FB pin with a resistor divider network. Refer to the application circuit shown in Figure 1. The resistor divider network includes R and R . ...
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The relationship between the input capacitor RMS current and voltage conversion ratio is calculated and shown in Figure 2. It can be seen that when under the worst current stress. The worst IN IN current ...
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For lower output ripple voltage across the entire operating temperature range, X5R or X7R dielectric type of ceramic, or other low ESR tantalum capacitor or aluminum electrolytic capacitor may also be used as output capacitors buck converter, output ...
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Package Dimensions, DFN 2x2 TOP VIEW c A SIDE VIEW RECOMMENDED LAND PATTERN 0.50 0.25 0.85 0.90 1.70 0.30 1.50 UNIT: mm Notes: 1. Dimensions and tolerances conform to ASME Y14.5M-1994. 2. Controlling dimension is millimeter, converted inch ...
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Tape and Reel Dimensions, DFN 2x2, 8L Carrier Tape UNIT: mm Package A0 B0 DFN 2x2 2.25 2.25 0.05 0.05 ± ± Reel R UNIT: mm Tape Size Reel Size 8mm ø180 Leader / Trailer & Orientation ...
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... Rev. 1.0 June 2011 AOZ1281DI ( DFN Year Code Week Code 2 ...