ABLIC S-8354
The S-8354 Series features a PWM / PFM switching controller that can switch the operation to a PFM controller with a duty ratio is 15% under a light load to prevent a decline in the efficiency due to the IC operating current.FEATURES
● Low voltage operation: Startup at 0.9 V min. (IOUT = 1 mA) guaranteed● Low current consumption : During operation 18.7 μA (3.3 V, 50 kHz, typ.) During shutdown: 0.5 μA (max.)
● Duty ratio : Built-in PWM / PFM switching control circuit (S-8354 Series) 15 % to 83 % (30 kHz and 50 kHz models) 15 % to 78 % (250 kHz models)
● External parts : Coil, capacitor, and diode
● Output voltage : Selectable in 0.1 V steps between 1.5 V and 6.5 V (for VDD / VOUT separate types) Selectable in 0.1 V steps between 2.0 V and 6.5 V (for other than VDD / VOUT separate types)
● Output voltage accuracy : ±2.4%
● Oscillation frequency : 30 kHz, 50 kHz, and 250 kHz selectable
● Soft start function : 6 ms (50 kHz, typ.)
● Lead-free, Sn 100%, halogen-free*1 *1. Refer to “● Product Name Structure” for details.
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APPLICATIONS
● Power supplies for portable equipment such as digital cameras, electronic notebooks, and PDAs● Power supplies for audio equipment such as portable CD / MD players
● Constant vo...