aoz1110 Alpha & Omega Semiconductor, aoz1110 Datasheet
aoz1110
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aoz1110 Summary of contents
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... General Description The AOZ1110QI is a high efficiency, easy to use, 4A synchronous buck regulator optimized for portable electronic devices. The AOZ1110QI works from a 2.7V to 5.5V input voltage range, and provides continuous output current with an output voltage adjustable down to 0.8V. With a 1% output accuracy rating, the AOZ1110 is designed for low tolerance applications, such as DSPs and FPGAs ...
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... Rev. 1.0 October 2010 Package 24-pin 4mm x 4mm QFN for additional information 24-Pin 4mm x 4mm QFN (Top View) Pin Function www.aosmd.com AOZ1110 Environmental Green Product Page ...
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... The value of JA 2kV FR-4 board with 2oz. Copper still air environment with T The value in any given application depends on the user's specific board -0. design. -0. -0. www.aosmd.com AOZ1110 VIN + ISen – Q1 Level Shifter + LX FET Driver ...
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... On threshold F = VDD SEL F = GND SEL ( 3. rising J T falling 0V 0.001μF to 0.1μ 2.7V 0.001μF to 0.1μ open SS www.aosmd.com AOZ1110 Min. Typ. Max. Units V 2.7 5.5 V 2.50 2.60 V 2.20 2.30 mA 1.5 3 μA 1 0.792 0.800 0.808 V 0.784 0.800 0.816 0.2 % 0.2 % 200 ...
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... Rev. 1.0 October 2010 (3) Condition Min 0V 1.0mA (sink 5.5V Fraction of set point 110 Fraction of set point 80 www.aosmd.com AOZ1110 Typ. Max. Units 33 64 mΩ μ mΩ μ 0.3 μA ±1 % 115 120 % μs ...
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... Vin ripple 0.1V/div VLX 5V/div IL 1A/div Short-Circuit Protection Waveforms Enable 5V/div Pgood 2V/div Vo 0.5V/div IIN 2A/div Short-Circuit Recovery Waveforms Vo 50mV/div Io 2A/div www.aosmd.com AOZ1110 Vo ripple 10mV/div Vin ripple 0.1V/div VLX 5V/div IL 1A/div 400ns/div LX 5V/div Pgood 2V/div Vo 1V/div IL 5A/div 1ms/div LX 5V/div Pgood ...
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... Load Current (A) Rev. 1.0 October 2010 Efficiency (f 100 OUTPUT: 95 3.3V 90 1. 3.0 3.5 4.0 4.5 0 0.5 Efficiency (f 100 OUTPUT: 95 3.3V 90 1. 3.0 3.5 4.0 4.5 0 0.5 www.aosmd.com AOZ1110 = 1MHz 3.3V) vs. Load Current SW IN OUTPUT: 1.8V 1.2V 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Load Current (A) = 500kHz 3.3V) vs. Load Current SW IN OUTPUT: 1.8V 1.2V 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Load Current (A) Page 4.5 ...
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... A pull- up resistor (R3) should connect this pin power trail with maximum voltage no higher than 6V. The AOZ1110QI monitors the FB voltage: when the FB pin voltage is lower than 85% of the target voltage or higher than 115% of the target voltage, N-MOSFET turns on and the power good pin is pulled low, which indicates the power is abnormal ...
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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 AOZ1110QI 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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... Loop Compensation The AOZ1110QI employs peak current mode control for easy use and fast transient response. Peak current mode control eliminates the double pole effect of the output L&C filter. It greatly simplifies the compensation loop design ...
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... COMP pin sets the pole-zero and is adequate for a stable high-bandwidth control loop. In the AOZ1110QI, FB pin and COMP pin are the inverting input and the output of internal error amplifier. A series R and C compensation network connected to COMP provides one pole and one zero ...
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... PGND pin of the AOZ1110QI. In the AOZ1110QI buck regulator circuit, the major power dissipating components are the AOZ1110QI and the output inductor. The total power dissipation of converter circuit can be measured by input power minus output power: × ...
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... A1 ddd C PIN#1 DIA R0. e Rev. 1.0 October 2010 aaa C TOP VIEW A3 SEATING PLANE bbb SIDE VIEW D1 D1 D1/2 L1 (4x) D1 BOTTOM VIEW www.aosmd.com AOZ1110 Page ...
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... E 1.25 1.35 E1 0.95 1. 0.40 0.45 L 0.30 0.40 L1 0.35 0.45 L2 0.05 0.15 L3 0.15 aaa 0.10 bbb 0.10 ccc 0.08 ddd www.aosmd.com AOZ1110 1.85 1.85 UNIT: MM Dimensions in inches Min. Typ. Max. 0.028 0.030 0.031 0.000 0.001 0.002 0.008 REF. 0.008 0.010 0.012 0.157 BSC 0.098 0.102 0.106 0.157 BSC 0.045 0.049 0.053 0.033 0.037 0.041 0.020 BSC ...
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... E E1 1.10 1.50 1.50 12.0 1.75 ±0.10 Min. +0.1/-0.0 ±0.3 ±0.10 ±0. ø ø 79.0 12.4 17.0 13.0 ±1.0 +2.0/-0.0 +2.6/-1.2 ±0.5 Components Tape Orientation in Pocket www.aosmd.com AOZ1110 Feeding Direction 5.50 8.00 4.00 2.00 0.30 ±0.10 ±0.10 ±0.05 ±0. 10.5 2.0 — — — ±0.2 ±0.5 Leader Tape 500mm min ...
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... FAYWLT 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 AOZ1110 Page ...