LP3910SQ-AN Datasheet, PDF (20/60 Pages) National Semiconductor (TI) – Power Management IC for Hard Drive Based Portable Media Players

BUCK 2 Efficiency vs Output Current
(PFM to PWM Mode, Vout =1.8V, L= 2.2µH)
BUCK 2 Efficiency vs Output Current
(PFM to PWM Mode, Vout =3.3V, L= 2.2µH)
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BUCK 1 Load Transient Response
VIN = 4.2V, VOUT = 1.2V,
ILOAD = 200-400mA (PWM Mode)
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BUCK 1 Load Transient Response
VIN = 4.2V, VOUT = 1.2V
ILOAD = 50-150mA (PFM to PWM)
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BUCK 2 Load Transient Response
VIN = 4.2V, VOUT = 3.3V
ILOAD = 200-400mA (PWM Mode)
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BUCK 2 Load Transient Response
VIN = 4.2V, VOUT = 3.3V
ILOAD = 50-150mA (PFM to PWM)
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