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AAT1210 Datasheet(PDF) 1 Page - Advanced Analogic Technologies |
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AAT1210 Datasheet(HTML) 1 Page - Advanced Analogic Technologies |
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1 / 23 page  General Description The AAT1210 is a high power DC/DC boost (step-up) converter with an input voltage range from 2.7 to 5.5V. The output voltage can be set from VIN + 0.5V to 18V. The total solution is less than 1mm in height. High operating efficiency makes the AAT1210 the ideal solution for battery powered and consumer applications. The step-up converter operates at frequencies up to 2MHz, enabling ultra-small external filtering compo- nents. Hysteretic current mode control provides excellent transient response with no external com- pensation, achieving stability across a wide operating range with minimal design effort. The AAT1210 true load disconnect feature extends battery life by isolating the load from the power source when the EN/SET pin is pulled low, ensuring zero volts output during the disable state. This fea- ture eliminates the external boost converter leakage path and achieves standby quiescient current <1µA without an external switching device. A fixed output voltage is set using two external resis- tors. Alternatively, the output may be adjusted dynami- cally across a 2.0x range. The output can toggle between two preset voltages using the SEL logic pin. Optionally, the output can be dynamically set to any one of 16 programmed levels using AnalogicTech's patented Simple Serial Control™ (S2Cwire™) interface. The AAT1210 is available in a Pb-free, thermally- enhanced 16-pin 3x4mm TDFN low-profile package and is rated over the -40°C to +85°C temperature range. Features •VIN Range: 2.7V to 5.5V • Maximum Continuous Output — 900mA at 5V — 300mA at 12V — 150mA at 18V • Up to 2MHz Switching Frequency • Ultra-Small Inductor and Capacitors — 1mm Height Inductor — Small Ceramic Capacitors • Hysteretic Current Mode Control — No External Compensation — Excellent Transient Response — High Efficiency at Light Load • Up to 90% Efficiency • Integrated Low RDS(ON) MOSFET Switches • Low Inrush with Integrated Soft Start • Cycle-by-Cycle Current Limit • Short-Circuit and Over-Temperature Protection • True Load Disconnect • Optional Dynamic Voltage Programming • TDFN34-16 Package • -40°C to +85°C Temperature Range Applications • GPS Systems • DVD Blu-Ray • Handheld PCs • PDA Phones • Portable Media Players • USB OTG AAT1210 High Power DC/DC Boost Converter with Optional Dynamic Voltage Programming Typical Application AAT1210 Boost Converter Output Capability (TDFN34-16; TAMB = 25 °°C; T C(RISE) = +50 °C) Output Voltage (V) 0 200 400 600 800 1000 1200 1400 56 7 8 9 10 11 12 13 14 15 16 17 18 7 VIN = 4.5V VIN = 3.6V VIN = 2.7V FB2 VIN EN/SET GND FB1 LIN SW D1 SEL AAT1210 TDFN34-16 L1 0.47µH VOUT 5V @ 900mA VIN 3.6V C1 4.7µF 0603 R3 4.99k Ω R2 40.2k Ω C2 10µF 0603 1210.2007.02.1.2 1 SwitchReg™ |
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