aoz1020 Alpha & Omega Semiconductor, aoz1020 Datasheet
aoz1020
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aoz1020 Summary of contents
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... General Description The AOZ1020 is a synchronous high efficiency, simple to use, 2A buck regulator. The AOZ1020 works from a 4.5V to 16V input voltage range, and provides continuous output current with an output voltage adjustable down to 0.8V. The AOZ1020 comes in an SO-8 packages and is rated over a -40°C to +85°C ambient temperature range. ...
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... This pin is internally pulled low when the output is below 90% of the nominal voltage. Rev. 1.0 March 2008 Package SO-8 for additional information. PGND PGOOD 1 8 VIN AGND COMP 4 5 SO-8 (Top View) Pin Function rises above the UVLO threshold the device starts up. IN www.aosmd.com AOZ1020 Environmental RoHS to enable the device IN Page ...
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... JA Note: -0.3V to 6.0V 2. The value of +150°C FR-4 board with 2oz. Copper still air environment with T -65°C to +150°C The value in any given application depends on the user's specific board design. 2.0kV www.aosmd.com AOZ1020 VIN + ISen – Q1 Level Shifter + LX FET Driver ...
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... 25°C 0.788 A Off Threshold On Threshold T = -40°C to +85° Rising J T Falling 1mA 12V 12V www.aosmd.com AOZ1020 Typ. Max. Units 4 4.1 V 3.7 1.6 2 µA 0.8 0.812 V 0 200 nA 0 100 mV 350 500 600 ...
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... Vo ripple 20mV/div IL 1A/div VLX 20V/div 50% to 100% Load Transient PGOOD 5V/div Vo 2V/div lin 0.5A/div Short Circuit Recovery PGOOD 5V/div Vo 2V/div IL 1A/div www.aosmd.com AOZ1020 Vin ripple 0.1V/div Vo ripple 20mV/div IL 1A/div VLX 20V/div 1 s/div Vo Ripple 50mV/div lo 1A/div 100 s/div PGOOD 5V/div Vo 2V/div IL 1A/div ...
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... Efficiency 100 Rev. 1.0 March 2008 AOZ1020AI Efficiency Efficiency (V = 12V) vs. Load Current IN 5.0V OUTPUT 3.3V OUTPUT 1.8V OUTPUT 1.2V OUTPUT 0.2 0.4 0.6 0.8 1.0 1.2 1.4 Load Current (A) www.aosmd.com AOZ1020 1.6 1.8 2.0 Page ...
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... The EN pin of the AOZ1020 is active HIGH. Connect the EN pin the enable function is not used. Pulling ground will disable the AOZ1020. Do not leave it open. The voltage on the EN pin must be above 2V to enable the AOZ1020. When voltage on the EN pin falls below 0.6V, the AOZ1020 is disabled application ...
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... Input Capacitor 10 The input capacitor must be connected to the V 10 PGND pin of AOZ1020 to maintain steady input voltage 10 and filter out the pulsing input current. The voltage rating of input capacitor must be greater than maximum input voltage plus ripple voltage. The input ripple voltage can be approximated by equation ...
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... If the impedance of ESR at switching frequency dominates, the output ripple voltage is mainly decided by capacitor ESR and inductor ripple current. The output ripple voltage calculation can be further simplified to www.aosmd.com AOZ1020 L1 Manufacture MURATA MURATA ELYTONE Coilcraft MURATA MURATA ELYTONE Coilcraft Coilcraft ...
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... The compensation design is actually to shape the converter control loop transfer function to get the desired gain and phase. Several different types of compensation network can be used for the AOZ1020. In most cases, a series capacitor and resistor network connected to the COMP pin sets the pole-zero and is adequate for a stable high-bandwidth control loop ...
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... PCB layout. Extra care should be taken by users during design process to ensure that the IC will operate under the recommended environmental conditions. The AOZ1020A is a standard SO-8 package. Layout tips are listed below for the best electric and thermal performance. Figure 3 illustrates a PCB layout example of the AOZ1020A. ...
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... PGND 1 VIN 2 AGND Rev. 1.0 March 2008 PGOOD COMP Vo Figure 3. AOZ1020A (SO-8) PCB Layout www.aosmd.com AOZ1020 L1 Page ...
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... D E1 3.80 3.90 4. 1.27 BSC e E 5.80 6.00 6. 0.25 — 0. 0.40 — 1. — 8 www.aosmd.com AOZ1020 Seating Plane 0. Min. Nom. Max. 0.053 0.065 0.069 0.004 — 0.010 0.049 0.059 0.065 0.012 — 0.020 0.007 — 0.010 0.189 0.193 0.197 0.150 0.154 0.157 0.050 BSC ...
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... Rev. 1.0 March 2008 P1 See Note 1.50 12.00 1.75 5.50 8.00 4.00 0.10 0.10 0.10 0.10 0. 13.00 17.40 ø13.00 10.60 2.00 0.30 1.00 +0.50/-0.20 0.50 Components Tape Leader Tape Orientation in Pocket 500mm min. or 125 empty pockets www.aosmd.com AOZ1020 See Note 3 Feeding Direction 2.00 0.25 0.10 0.10 0. — — — Page ...
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... WLT Assembly Lot Code Year & Week Code 2. A critical component in any component of a life support, device, or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system affect its safety or effectiveness. www.aosmd.com AOZ1020 Page ...