aoz1022 Alpha & Omega Semiconductor, aoz1022 Datasheet
aoz1022
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aoz1022 Summary of contents
Page 1
... The AOZ1022 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 AOZ1022 comes in a DFN 5x4 and an EPAD SO-8 package and is rated over a -40°C to +85°C ambient temperature range. Typical Application ...
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... Switching node the drain of the internal PFET used as the thermal pad of the power stage. Power Good Output. PGOOD is an open-drain output that indicates the status of out- put voltage. PGOOD is pulled low when output is below 90% of the normal regula- tion. No Connect. Pin 8 is not internally connected. www.aosmd.com AOZ1022 Environmental Green PGOOD ...
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... FR-4 board with 2oz. Copper still air environment with +150° 25°C. The value in any given application depends on the A user's specific board design. -65°C to +150°C 2.0kV in series with 100pF. www.aosmd.com AOZ1022 VIN + ISen – Q1 Level Shifter + FET Driver Q2 AGND ...
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... OUT 25°C 0.788 A Off Threshold On Threshold T Rising J T Falling 1mA 12V 12V www.aosmd.com AOZ1022 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 kHz 100 ...
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... Full Load (CCM) Operation Vin ripple 0.1V/div Vo ripple 20mV/div IL 1A/div VLX 10V/div Short Circuit Protection Vin 10V/div Vo 2V/div lin 1A/div Short Circuit Recovery Vo Ripple 100mV/div lo 1A/div www.aosmd.com AOZ1022 Vin ripple 0.1V/div Vo ripple 20mV/div IL 1A/div VLX 10V/div 1s/div LX 10V/div Vo 2V/div IL 2A/div 50µs/div LX 10V/div Vo 2V/div IL ...
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... Efficiency AOZ1022 Efficiency Efficiency (V = 12V) vs. Load Current IN 100 0.5 1.0 1.5 Load Current (A) Thermal Derating Curves Derating Curve at 5V/6V Input 5 4 1.2V, 1.8V OUTPUT Ambient Temperature (T Rev. 1.6 December 2010 100 95 5.0V OUTPUT 90 3.3V OUTPUT 85 1.8V OUTPUT 80 1.2V OUTPUT 2.0 2.5 3.0 0 3.3 3.2 3.1 3.3V OUTPUT 3.0 2.9 2 ...
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... EN pin is HIGH. In the soft start process, the output voltage is typically ramped to regulation voltage in 4ms. The 4ms soft start time is set internally. The EN pin of the AOZ1022 is active HIGH. Connect the EN pin the enable function is not used. IN Pulling EN to ground will disable the AOZ1022 ...
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... Figure 1. Component selection is explained below. Input Capacitor The input capacitor must be connected to the V PGND pin of AOZ1022 to maintain steady input voltage and filter out the pulsing input current. The voltage rating of input capacitor must be greater than maximum input voltage plus ripple voltage. ...
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... It can be calculated by: ΔI L ---------- I = CO_RMS 12 Usually, the ripple current rating of the output capacitor is a smaller issue because of the low current stress. When the buck inductor is selected to be very small and induc- www.aosmd.com AOZ1022 1 ⎞ ------------------------- + ⎠ × × ⎞ ...
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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 AOZ1022. 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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... LX will operate under the recommended environmental IN conditions. The AOZ1022 comes in an EPAD SO-8 package. Layout tips are listed below for the best electric and thermal performance. Figure 3 illustrates a PCB layout example of the AOZ1022. 1. The LX pins are connected to internal PFET and NFET drains ...
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... D3 1.66 1.76 E 3.90 4.00 1.65 2.33 E2 2.23 2.33 e 0.95 BSC L 0.50 0.55 L1 — 0.40 L2 0.285 Ref. 0.285 L3 0.835 Ref. aaa 0.15 bbb 0.10 ccc 0.10 ddd 0.08 eee 0.05 www.aosmd.com AOZ1022 e L3* E2 Pin #1 IDA D2 Chamfer 0.30 Dimensions in inches Max. Symbols Min. Nom. Max. 0.80 A 0.028 0.30 0.032 A3 0.008 Ref. 0.50 b 0.016 0.018 0.020 5.10 D 0.190 0.200 0.210 2.25 D2 0.080 0.085 0.089 1 ...
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... Leader/Trailer and Orientation Trailer Tape 300mm Min. Rev. 1.6 December 2010 1.50 1.50 12.00 1.75 5.50 ±0.30 Min. +0.10 / –0 ±0.10 ±0.10 Components Tape Orientation in Pocket www.aosmd.com AOZ1022 E1 D0 Feeding Direction 8.00 4.00 2.00 0.30 ±0.10 ±0.20 ±0.10 ±0.05 Leader Tape 500mm Min. Page ...
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... Reel Dimensions, DFN 5x4 II M Tape Size Reel Size M ø330 12mm ø330 +0.3 -4.0 6.450.05 6.2 8.90.1 14 REF 11.90 41.5 REF 43.00 44.50.1 10.0 A Rev. 1.6 December 2010 12.40 2.40 0.5 +2.0 0.3 -0.0 II Zoom In A N=ø1002 1.8 2.20 5.0 1.8 12 REF 6.50 VIEW: C 2.00 6.50 10.71 6 www.aosmd.com AOZ1022 6.01 I Zoom III Zoom In 0. 6.0 0.00 8.00 -0.05 R1 2.00 C 46.00.1 44.50.1 3.3 4.0 6.10 40 2.5 0.80 1.80 3.00 8.00.1 +0.050.00 8.00 Page 3-1.8 ...
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... D 4.80 4.96 D0 3.20 3.40 D1 3.10 3.30 5.74 E 5.80 6.00 e — 1.27 E1 3.80 3.90 E2 2.21 2.41 E3 0.40 REF L 0.40 0.95 y — — θ L1–L1' | — 0.04 L1 1.04 REF www.aosmd.com AOZ1022 L1' θ Dimensions in inches Max. Symbols Min. Nom. Max. 1.70 A 0.055 0.061 0.067 0.10 A1 0.000 0.002 0.004 1.60 A2 0.055 0.059 0.063 0.51 B 0.012 0.016 0.020 0.25 C 0.007 — 0.010 5.00 D 0.189 ...
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... ø97.00 13.00 17.40 ø13.00 ±0.10 ±0.30 ±1.00 +0.50/-0.20 Components Tape Orientation in Pocket www.aosmd.com AOZ1022 Feeding Direction 8.00 4.00 2.00 0.25 ±0.10 ±0.10 ±0.10 ±0. 10.60 2.00 — — — ±0.50 Leader Tape 500mm min ...
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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 AOZ1022 Page ...