LP2950-N, LP2951-N
SNVS764Q –JANUARY 2000–REVISED DECEMBER 2017
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9.2.8 2-A Low Dropout Regulator
As Figure 50 shows, the 2-A low dropout regulator has below features:
For 5 VOUT, use internal resistors. Wire pin 6 to pin 7 and wire pin 2 to + VOUT bus.
Figure 50. 2-A Low Dropout Regulator
9.2.9 5-V Regulator with 2.5-V Sleep Function
In Figure 51, the 5-V regulator with 2.5-V sleep function works in below mode:
When sleep input is low, C-MOS output a high voltage and 2N3906 is off, then Vout = (1 + 300 KΩ/100 KΩ) × VFB
≈ 5 V
when sleep input is high, C-MOS output a low voltage, turns on 2N3906, then 200-KΩ resistor is bypassed from
circuit, and VOUT = (1+100 KΩ/100 KΩ) × VFB ≈ 2.5 V.
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