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| LP3906 Datasheet, PDF (13/38 Pages) National Semiconductor (TI) – Dual High-Current Step-Down DC/DC and Dual Linear Regulator with I2C Compatible Interface | |||
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Typical Performance Characteristics â Buck TA = 25ËC unless otherwise noted (Continued)
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)
Load Transient Response
Vout = 1.2 (PWM Mode)
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Mode Change by Load Transient
Vout = 1.2V (PWM to PFM)
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Line Transient Response
Vin = 3 â 3.6 V, Vout = 1.2 V, 250 mA load
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Line Transient Response
Vin = 3 â 3.6 V, Vout = 3.3 V, 250 mA load
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13
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