SY20313A Datasheet | Silergy

Description The SY20313A is a dual-output, high efficiency 2MHz synchronous step down DC-DC regulator IC, capable of delivering up to 1A output current each output channel. The SY20313A operates over a wide input voltage range from 2.5V to 5.5V and integrate main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. The SY20313A can operate in two different modes by controlling the MODE pin. For low noise applications SY20313A can be forced into fixed frequency PWM mode by pulling this pin high. For power saving applications, SY20313A can enter the variable frequency operation to maintain high efficiency at light load by pulling this pin low. Features - Input range: 2.5V to 5.5V - 2MHz switching frequency - 180 out of phase operation - Output current: 1A per channel - +/-1% DC output voltage accuracy at forced PWM mode - Low Quiescent Current: <35u A when both channels are enabled - Low RDS(ON) for internal switches (PFET/NFET): 220mΩ/180mΩ - Internal softstart - 100% dropout operation - Ro HS pliant and Halogen Free - pact package: DFN3x3-10 Ordering Information SY20313- (- - )- Temperature Code Pa cka ge Code Optional Spec Code Ordering Number Package type Note SY20313ADBC DFN3x3-10 1A Applications - SSD - Cell Phones - Digital Cameras - PDAs - Portable Media Players Typical Applications VIN 2.5~5.5V + C1 100µF C2 10µF C3 10µF R7 1MΩ R6 1MΩ R5 1MΩ 3 VIN 4 VOUT1 9 EN2 7 EN1 2 MODE GND 8 6 LX1 FB1...