IS31AP2036A HIGH EFFICIENCY, CLASS-K AUDIO POWER AMPLIFIER WITH INTEGRATED CHARGE PUMP CONVERTER April 2016 GENERAL DESCRIPTION FEATURES The IS31AP2036A is a Class-K audio power amplifier Operates from 3.0V to 5.0V with high efficiency and automatic gain control. It drives Ultra low output noise floor up to 2.0W (10% THD+N) into an 8 speaker from a Low EMI 4.2V V supply. CC -66dB (217Hz) high PSRR The IS31AP2036A integrates advanced high efficiency 0.05% low THD+N charge pump and whole power amplifier efficiency can AGC function be up to 75%. The output power will be maintained in Pulse Count Control serial interface 0.8W, 1.0W and 1.2W. Output power in 0.8W, 1W and 1.2W levels The IS31AP2036A provides low cost, space saving Thermal and short-circuit protection solution for portable equipments which need audio Integrated Click-and-Pop suppression circuitry output with higher power by boosting up supply voltage. Available in FCQFN-16 (2mm 2mm) package Its external components just include a few capacitors and resistors (no inductor). APPLICATIONS The IS31AP2036A use fully differential design to reduce RF noise. The IS31AP2036A integrates de-pop circuitry Smart phones to reduce pop and click noise during power on/off or Cellular phones shutdown enable operation. The IS31AP2036A also PDAs integrates thermal and short circuit protection function. GPS IS31AP2036A is available in FCQFN-16 (2mm 2mm) Portable electronics package. It operates from 3.0V to 5.0V over the temperature range of -40C to +85C. TYPICAL APPLICATION CIRCUIT VBattery A3,B3 D3 VCC PVCC 10 F 0.1 F 4.7 F C1 C1N 2.2 F D2 A4 C1P Mode Control SDB B1,B2 C2N D1 2.2 F 100k C2P IS31AP2036A B4 OUT CIN RIN 1nF 15nF 3k A1 D4 IN+ OUT Differential 220pF 1nF Input A2 C2~C4 IN- GND CIN RIN 15nF 3k Figure 1 Typical Application Circuit (Differential Input) 1 Lumissil Microsystems www.lumissil.com Rev. B, 03/29/2016 IS31AP2036A VBattery A3,B3 D3 VCC PVCC 10 F 0.1 F 4.7 F C1 C1N 2.2 F D2 A4 C1P Mode Control SDB B1,B2 C2N D1 2.2 F 100k C2P IS31AP2036A B4 OUT CIN RIN 1nF 15nF 3k A1 D4 Single-ended IN+ OUT Input 220pF 1nF A2 C2~C4 IN- GND CIN RIN 15nF 3k Figure 2 Typical Application Circuit (Single-ended Input) 2 Lumissil Microsystems www.lumissil.com Rev. B, 03/29/2016