DATA SHEET AAT1210 High Power DC/DC Boost Converter with Optional Dynamic Voltage Programming General Description Features The AAT1210 is a high power DC/DC boost (step-up) V Range: 2.7V to 5.5V IN converter with an input voltage range from 2.7 to 5.5V. Maximum Continuous Output The output voltage can be set from V + 0.5V to 18V. 900mA at 5V IN The total solution is less than 1mm in height. High oper- 300mA at 12V ating efficiency makes the AAT1210 the ideal solution for 150mA at 18V battery powered and consumer applications. Up to 2MHz Switching Frequency Ultra-Small Inductor and Capacitors The step-up converter operates at frequencies up to 1mm Height Inductor 2MHz, enabling ultra-small external filtering compo- Small Ceramic Capacitors nents. Hysteretic current mode control provides excel- Hysteretic Current Mode Control lent transient response with no external compensation, No External Compensation achieving stability across a wide operating range with Excellent Transient Response minimal design effort. High Efficiency at Light Load The AAT1210 true load disconnect feature extends bat- Up to 90% Efficiency tery life by isolating the load from the power source Integrated Low R MOSFET Switches DS(ON) when the EN/SET pin is pulled low, ensuring zero volts Low Inrush with Integrated Soft Start output during the disable state. This feature eliminates Cycle-by-Cycle Current Limit the external boost converter leakage path and achieves Short-Circuit and Over-Temperature Protection standby quiescient current <1A without an external True Load Disconnect switching device. Optional Dynamic Voltage Programming TDFN34-16 Package A fixed output voltage is set using two external resistors. -40C to +85C Temperature Range Alternatively, the output may be adjusted dynamically across a 2.0x range. The output can toggle between two preset voltages using the SEL logic pin. Optionally, the Applications output can be dynamically set to any one of 16 pro- GPS Systems grammed levels using Skyworks patented Simple Serial 2 DVD Blu-Ray Control (S Cwire) interface. Handheld PCs The AAT1210 is available in a Pb-free, thermally- PDA Phones enhanced 16-pin 3x4mm TDFN low-profile package and Portable Media Players is rated over the -40C to +85C temperature range. USB OTG Typical Application V V IN OUT AAT1210 Boost Converter Output Capability L1 AAT1210 3.6V 5V 900mA 0.47H TDFN34-16 (TDFN34-12 T = 25C T = +50C) AMB C(RISE) D1 1400 VIN LIN V = 4.5V IN 1200 EN/SET SW 1000 SEL FB1 V = 3.6V IN 800 R1 V = 2.7V IN 36.5k GND FB2 600 C2 C1 10F 400 4.7F 0603 R2 0603 4.99k 200 0 56 7 8 9 10 11 12 13 14 15 16 17 18 Output Voltage (V) Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 1 202049A Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice. June 12, 2012 Output Current (mA) DATA SHEET AAT1210 High Power DC/DC Boost Converter with Optional Dynamic Voltage Programming Pin Descriptions Pin Symbol Function 1, 2 LIN Switched power input. Connect to the power inductor. Feedback pin for high output voltage set point. Pin set to 1.2V when SEL is high and disabled when SEL is 3 FB1 2 low. Disabled with S Cwire control. Tie directly to FB2 pin for static ( xed) output voltage. Feedback pin for low output voltage set point. Pin set to 0.6V when SEL is low and disabled when SEL is 2 4 FB2 high. Voltage is set from 0.6V to 1.2V with S Cwire control. Tie directly to FB1 pin for static ( xed) output voltage. 5 GND Ground pin. Power ground for the boost converter connected to the source of the N-channel MOSFET. Connect to the 6, 7, 8 PGND input and output capacitor return. 9, 10 SW Boost converter switching node. Connect the power inductor between this pin and the LIN pin. 11 N/C No connection. 12 VIN Input voltage for the converter. Connect this pin directly to the VP pin. Logic high selects FB1 high output reference. Logic low selects FB2 low output reference. Pull low for 13 SEL 2 S Cwire control. 2 14 EN/SET Active high enable pin. Alternately, input pin for S Cwire control using the FB2 reference. Input power pin connected internally to the source of the P-channel MOSFET. Connect externally to the 15, 16 VP input capacitor(s). Exposed paddle (bottom). Connected internally to the SW pins. Can be tied to bottom side PCB heat sink EP to optimize thermal performance. Pin Configuration TDFN34-16 (Top View) 1 16 LIN VP 2 15 LIN VP 3 14 FB1 EN/SET 4 13 FB2 SEL 5 12 GND VIN 6 11 N/C PGND 7 10 PGND SW 8 9 PGND SW Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 202049A Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice. June 12, 2012