TA2015FN

TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA2015FN Ripple Filter (1.5V USE) TA2015FN The TA2015FN is a ripple filter IC, which is developed for low voltage operation (1.5V). It is especially suitable for supplying voltage for headphone stereo etc. Features · Built−in a power switch · Excellent ripple rejection ratio: RR = 43dB (typ.) · Ripple filter output voltage can be controlled by external resistor. · Output voltage is limited to VRF = 1.5V (typ.) · Built−in two constant current sources. · Excellent low voltage operation. · Low quiescent supply current (VCC = 1.2V, Ta = 25°C) ICC = 0.7mA (typ.) · Operating supply voltage range. (Ta = 25°C) VCC (opr) = 0.9~2.2V Block Diagram Weight: 0.04g (typ.) Marking 1 2002-10-30 Terminal Explanation Terminal Voltage: Typical Terminal Voltage with Test Circuit (VCC = 1.2V, Ta = 25°C, non load) Terminal No. Name 1 IO1 2 IO2 3 GND Function Output of constant current source 1 Operating condition PW SW : H MODE SW : L Output of constant current source 2 Synchronized to PW SW — Internal Circuit — Ripple filter terminal Ripple filter output voltage 4 RF in can be controlled by external resistor. (See application note) Mode switch 5 Mode SW VCC : IO2, RF OUT on GND / OPEN : IO1, IO2 on Power switch 6 PW SW VCC : Power on GND / OPEN : Power off 7 VCC — Base biasing terminal for ripple filter transistor. Output current capacity is 8 Base 1.2mA with only built-in PNP transistor. This capacity ca...