aoz1231qi Alpha & Omega Semiconductor, aoz1231qi Datasheet
aoz1231qi
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aoz1231qi Summary of contents
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General Description The AOZ1231-01 is high-efficiency, easy-to-use DC/DC synchronous buck regulator that operates The device is capable of supplying continuous output current with an output voltage adjustable down to 0.8 V ± 1 ...
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... Ordering Information Part Number Ambient Temperature Range AOZ1231QI-01 -40 °C to +85 °C AOS Green Products use reduced levels of Halogens, and are also RoHS compliant. Please visit www.aosmd.com/web/quality/rohs_compliant.jsp Typical Applications Input = 12V or above C2 22μF R3 100kΩ Power Good Off On Input = 5V C2 22μF R3 100kΩ ...
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Typical Applications (Continued) Input C2 22μ 100kΩ Power Good Off On High Efficiency, Light Load Requirements or V Pin Configuration PGOOD AGND TON Rev. 1.0 July 2011 IN TON AIN BST VCC C4 AOZ1231-01 1μF LX PGOOD FB ...
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Pin Description Pin Number Pin Name 1 PGOOD PFM 4, 29 AGND TON 7 AIN 12, 13, 14, 15, 16, PGND 17, 18, 19, 26 20, 21, 22, 23, ...
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Functional Block Diagram VCC EN Reference & Bias 0.8V SS ISENCE (AC Decode ILIM_VALLEY ISENSE OTP TON Q Timer PFM TON TON Generator Absolute Maximum Ratings Exceeding the Absolute Maximum Ratings may damage the device. Parameter IN, AIN, ...
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Electrical Characteristics ° unless otherwise specified. Specifications in BOLD indicate a temperature range of -40 °C to +85 ° Symbol Parameter V IN Supply Voltage IN ...
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Electrical Characteristics (Continued ° unless otherwise specified. Specifications in BOLD indicate a temperature range of -40 °C to +85 ° Symbol Parameter POWER STAGE OUTPUT R ...
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Detailed Description The AOZ1231- high-efficiency, easy-to-use, synchronous buck regulators optimized for notebook computers. The regulator is capable of supplying continuous output current with an output voltage adjustable down to 0.8 V. The programmable operating frequency ...
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An external resistor between the IN and TON pin sets the switching frequency according to the following equation: 12 × out F = ----------------------------- - × sw 26.3 R ton A further simplified equation is: × ...
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Application Information The basic AOZ1231-01 application circuit is shown on page 2 and 3. Component selection is explained below. Input Capacitor The input capacitor must be connected to the IN pins and PGND pins of the AOZ1231-01 to maintain steady ...
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Output Capacitor The output capacitor is selected based on the DC output voltage rating, output ripple voltage specification and ripple current rating. The selected output capacitor must have a higher rated voltage specification than the maximum desired output voltage including ...
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Several layout tips are listed below for the best electric and thermal performance. 1. The LX pins and pad are connected to internal low side switch drain. They are low resistance thermal conduction path and the most noisy switching node. ...
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Package Dimensions, QFN 5x5, 30 Lead EP3_S 23 2 INDEX AREA (D/2xE/2) ccc ddd C PIN#1 DIA C0.35x45˚ Notes: 1. All dimensions are in millimeters. 2. The location of the terminal ...
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Package Dimensions, QFN 5x5, 30 Lead EP3_S 0.25 0.30X45˚ 0.27 Dimensions in millimeters Symbols Min. 0.80 A 0.00 A1 0.20 REF A3 0.20 b 5.00 BSC D 2.12 D1 0. 5.00 BSC E1 1.294 E2 1.796 ...
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Tape and Reel Dimensions, QFN 5x5, 30 Lead EP3_S Carrier Tape UNIT: mm Package A0 B0 QFN 5x5 5.25 5.25 1.10 (12mm) ±0.10 ±0.10 ±0.10 Reel UNIT: mm Tape Size Reel Size 12mm ø330 ø330.0 Leader/Trailer ...
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Part Marking Fab & Assembly Location This datasheet contains preliminary data; supplementary data may be published at a later date. Alpha & Omega Semiconductor reserves the right to make changes at any time without notice. LIFE SUPPORT POLICY ALPHA & ...