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SY8008是一种采用恒定频率,电流模式架构的高效单片同步降压型稳压器。SY8008具备可调型和输出电压固定型(1.5V和1.8V)版SY8008操作过程中的供电电流仅为20uA,在停机状态下则降至1uA或更低。
SY8008 General Description
The SY8008A, SY8008B and SY8008C are high-efficiency 1.5MHz synchronous step-down DC-DC regulator ICs capable of delivering up to 1.2A output currents. The SY8008 family operate 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. Low output voltage ripple and small external inductor and capacitor sizes are achieved with 1.5MHz switching frequency. This along with small SOT-23/TSOT-23 footprint provides small PCB area application.
SY8008 Applications
· Portable Navigation Device
· Smart phone
· USB Dongle
· Set Top Box
· Media Player
SY8008 Features
· low Rds(on) for internal switches (top/bottom)
· SY8008A: 300mΩ/250mΩ, 0.6A
· SY8008B: 250mΩ/200mΩ, 1A
· SY8008C: 200mΩ/150mΩ, 1.2A
· 2.5-5.5V input voltage range
· 1.5MHz switching frequency minimizes the external components
· Internal softstart limits the inrush current
· 100% dropout operation
· RoHS Compliant and Halogen Free
· Compact package: SOT23-5/ TSOT23-5 pin
