aoz1016 Alpha & Omega Semiconductor, aoz1016 Datasheet
aoz1016
Available stocks
Related parts for aoz1016
aoz1016 Summary of contents
Page 1
... General Description The AOZ1016 is a high efficiency, simple to use, 2A buck regulator. The AOZ1016 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 AOZ1016 comes in an SO-8 package and is rated over a -40°C to +85°C ambient temperature range. ...
Page 2
... Rev. 1.1 September 2007 Package SO-8 for additional information. PGND VIN AGND COMP 4 5 SO-8 (Top View) Pin Function rises above the UVLO threshold the device starts up. IN www.aosmd.com AOZ1016 Environmental RoHS if not used. Do not leave the EN pin IN Page ...
Page 3
... EAmp FB – COMP Frequency Foldback Comparator + – 0.2V Over Voltage Protection Comparator 0.96V + – Rev. 1.1 September 2007 Internal 5V LDO OTP +5V ILimit + PWM PWM Shifter – Control Comp Logic + 500kHz/38kHz Oscillator AGND www.aosmd.com AOZ1016 VIN + ISen – Q1 Level + LX FET Driver PGND Page ...
Page 4
... IN V Falling 1.2V, V OUT Off Threshold On Threshold Off threshold On threshold V = 12V www.aosmd.com AOZ1016 Rating ) 4.5V to 16V IN 0. -40°C to +85°C A 87°C measured with the device mounted on 1-in = 25°C. The A Min. Typ. Max. Units 4 4.00 V 3.70 > ...
Page 5
... IL 1A/div VLX 10V/div 1 s/div Full Load to Turnoff Vin 10V/div Vo 1V/div Iin 0.5A/div 400 s/div Light Load to Turnoff Vo Ripple 50mV/div Io 1A /div www.aosmd.com AOZ1016 Vin ripple 0.1V/div Vo ripple 20mV/div IL 1A/div VLX 10V/div Vin 10V/div Vo 1V/div Iin 0.5A/div Vin 5V/div Vo 1V/div Iin ...
Page 6
... C ambient temperature and natural convection (air speed < 50LFM) unless otherwise specified. Derating Curves at 5V Input 2.5 2.0 1.8V OUTPUT 1.5 1.0 0 Ambient Temperature (T Rev. 1.1 September 2007 (Continued) = 3.3V unless otherwise specified. OUT Vo 2V/div IL 1A/div AOZ1016AI Efficiency Efficiency (V = 12V) vs. Load Current IN 8.0V OUTPUT 5.0V OUTPUT 3.3V OUTPUT 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 Load Current (A) 2.5 3.3V, 5.0V OUTPUT 2.0 1.5 1.0 0.5 ...
Page 7
... EN pin is HIGH. In soft start process, the output voltage is ramped to regulation voltage in typically 2.2ms. The 2.2ms soft start time is set internally. The EN pin of the AOZ1016 is active HIGH. Connect the EN pin enable function is not used. Pull ground will disable the AOZ1016 ...
Page 8
... Input Capacitor The input capacitor (C in Figure 1) must be connected 1 to the V pin and PGND pin of the AOZ1016 to maintain IN steady input voltage and filter out the pulsing input current. A small decoupling capacitor (C usually 1µF, should be connected to the V AGND pin for stable operation of the AOZ1016. The voltage rating of input capacitor must be greater than maximum input voltage plus ripple voltage ...
Page 9
... For lower output ripple voltage across the entire operating temperature range, X5R or X7R dielectric type of ceramic, or other low ESR tantalum are recommended to be used as output capacitors. www.aosmd.com AOZ1016 1 + -------------------------- - Page ...
Page 10
... The compensation design is actually to shape the converter close loop transfer function to get the desired gain and phase. Several different types of compensation network can be used for the AOZ1016. 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 ...
Page 11
... The second loop starts from inductor, to the output capacitors and load, to the PGND pin of the AOZ1016, to the LX pins of the AOZ1016. Current flows in the second loop when the low side diode is on. In PCB layout, minimizing the two loops area reduces the noise of this circuit and improves effi ...
Page 12
... PGND Cin VIN Cd AGND Rev. 1.1 September 2007 Cout SO COMP Figure 3. AOZ1016 PCB Layout www.aosmd.com AOZ1016 Page ...
Page 13
... 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 AOZ1016 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 ...
Page 14
... Rev. 1.1 September 2007 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 AOZ1016 See Note 3 Feeding Direction 2.00 0.25 0.10 0.10 0. — — — Page ...
Page 15
... AOZ1016 Package 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 & OMEGA SEMICONDUCTOR PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS ...