aoz1094 Alpha & Omega Semiconductor, aoz1094 Datasheet
aoz1094
Available stocks
Related parts for aoz1094
aoz1094 Summary of contents
Page 1
... General Description The AOZ1094 is a high efficiency, simple to use, 5A buck regulator. The AOZ1094 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 AOZ1094 comes in SO-8 and DFN-8 packages and is rated over a -40°C to +85°C ambient temperature range ...
Page 2
... LX 8 VIN PGND AGND 3 6 AGND COMP 4x5 DFN (Top View) Pin Function rises above the UVLO threshold the device starts up. IN www.aosmd.com AOZ1094 Environmental Green Product Green Product COMP Page ...
Page 3
... Ambient Temperature (T -0.3V to +0.3V Package Thermal Resistance (Θ +150°C SO-8 DFN-8 -65°C to +150°C 2kV Note: 2. The value of Θ board with 2oz. Copper still air environment with T www.aosmd.com AOZ1094 if not used. Do not leave the EN pin floating. IN VIN + ISen – Q1 Level Shifter + LX ...
Page 4
... Min. V Rising IN V Falling VFB = 1.2V, V > 1.2V OUT 0.784 Off Threshold On Threshold T Rising J T Falling J Off Threshold On Threshold V = 12V www.aosmd.com AOZ1094 Typ. Max. Units 4 4. µA 0.8 0.816 V 0 200 nA 0.6 V 2.0 100 mV 400 500 600 ...
Page 5
... Vin ripple 100mV/div Vout ripple 20mV/div IL 2A/div VLX 10V/div Vin 5V/div Vout 2V/div lin 2A/div 50% to 100% Load Transient 200s/div www.aosmd.com AOZ1094 Vin ripple 200mV/div Vout ripple 20mV/div IL 2A/div VLX 10V/div 2s/div Light Load to Startup Vin 5V/div Vout 2V/div lin 200mA/div ...
Page 6
... Rev. 1.3 October 2010 (Continued) = 12V 3.3V unless otherwise specified. OUT Vin 5V/div Vout 2V/div Iin 2A/div Vout 2V/div IL 2A/div AOZ1094 Efficiency Efficiency (V = 12V) vs. Load Current IN 5V OUTPUT 3.3V OUTPUT 1.8V OUTPUT 0.5 1 1.5 2.0 2.5 3.0 3.5 Load Current (A) www.aosmd.com AOZ1094 Light Load Turn Off Vin 5V/div Vout ...
Page 7
... OUTPUT 3.3V OUTPUT Derating Curve at 12V Input 6 5 3.3V OUTPUT 4 5.0V OUTPUT www.aosmd.com AOZ1094 1.8V OUTPUT 5.0V OUTPUT 8.0V OUTPUT Ambient Temperature ( 8.0V OUTPUT 1.8V OUTPUT 3.3V OUTPUT 5.0V OUTPUT Ambient Temperature ( Page ...
Page 8
... EN pin is HIGH. In soft start process, the output voltage is ramped to regulation voltage in typically 3ms. The 3ms soft start time is set internally. The EN pin of the AOZ1094 is active high. Connect the EN pin enable function is not used. Pulling ground will disable the AOZ1094 ...
Page 9
... Figure 1. Component selection is explained below. Input Capacitor The input capacitor must be connected to the V PGND pin of the AOZ1094 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. ...
Page 10
... The selected output capacitor must have a higher rated voltage specification than the maximum desired output voltage including ripple. De-rating needs to be considered for long term reliability. L1 Coilcraft Coilcraft TDK, tdk.com Coilcraft Sumida sumida.com WURTH ELEKTRONIK, we-online.com ELYTONE ELYTONE Coilcraft Coilcraft www.aosmd.com AOZ1094 Manufacturer Page ...
Page 11
... COMP pin sets the pole-zero and is adequate for a stable high-bandwidth control loop. In the AOZ1094, FB pin and COMP pin are the inverting input and the output of internal transconductance error amplifier. A series R and C compensation network connected to COMP provides one pole and one zero. ...
Page 12
... A ground plane is strongly recommended to connect input capacitor, output capacitor, and PGND pin of the AOZ1094. In the AOZ1094 buck regulator circuit, the major power -6 dissipating components are the AOZ1094, the Schottky diode and output inductor. The total power dissipation of ...
Page 13
... PCB metal. Several layout tips are listed below for the best electric and thermal performance. Figure 3 illustrates a PCB layout example of AOZ1094A. Figure 4 illustrates a PCB layout example of AOZ1094D not use thermal relief connection to the V the PGND pin ...
Page 14
... E1 e 1.27 BSC e E 5.80 6.00 6. 0.25 — 0. 0.40 — 1.27 L θ θ 0° — 8° www.aosmd.com AOZ1094 Seating Plane 0. θ 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 ...
Page 15
... 13.00 17.40 ø13.00 10.60 2.00 ±0.30 ±1.00 ±0.50 +0.50/-0.20 Components Tape Leader Tape Orientation in Pocket 500mm min. or 125 empty pockets www.aosmd.com AOZ1094 See Note 3 Feeding Direction 4.00 2.00 0.25 ±0.10 ±0.10 ±0. — — — Page ...
Page 16
... BSC E2 2.500 2.650 E3 2.050 2.200 e 0.95 BSC L 0.600 0.700 L1 0.400 0.500 R 0.30 REF aaa – 0.15 bbb – 0.10 ccc – 0.10 ddd – 0.08 www.aosmd.com AOZ1094 Dimensions in inches Max. Symbols Min. Nom. Max. 1.00 A 0.031 0.035 0.039 0.05 A1 0.000 0.001 0.002 A3 0.008 REF 0.45 b 0.014 0.016 ...
Page 17
... Typ. Leader/Trailer and Orientation Trailer Tape (300mm Min.) Rev. 1.3 October 2010 1.50 12.00 1.75 5.50 8.00 ±0.30 +0.10 / –0 ±0.10 ±0.10 ±0.10 Components Tape Leader Tape Orientation in Pocket (500mm Min.) www.aosmd.com AOZ1094 E1 D0 Feeding Direction 4.00 2.00 0.30 ±0.20 ±0.10 ±0.05 Page ...
Page 18
... Reel Dimensions, DFN 5x4 II M Zoom In 6.45±0.05 6.2 8.9±0.1 14 REF 11.90 41.5 REF 43.00 44.5±0.1 6.50 10.0 A 2.00 6.50 Rev. 1.3 October 2010 N=ø100±2 1.8 2.20 5.0 C 1.8 12 REF VIEW: C 8.0±0.1 10.71 6° www.aosmd.com AOZ1094 6.0±1 I Zoom III Zoom In 3-1.8 0. 6.0 8.00 0.00 -0.05 R1 2.00 46.0±0.1 44.5±0.1 3.3 4.0 6.10 40° 2.5 0.80 1.80 3.00 +0.05 8.00 0.00 Page ...
Page 19
... AOZ1094AIL Part Marking Fab & Assembly Location AOZ1094DIL Part Marking Fab & Assembly Location This data sheet 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 & ...