STEVAL-ISA078V1 High efficiency synchronous step-up regulator based on the L6926
The STEVAL-ISA078V1 demonstration board is a high efficiency monolithic synchronous step-down regulator capable of delivering up to 800 mA of continuous output current and of regulating the output voltage from 0.6 V up to VINthanks to the 100% duty cycle operation capability.
The input voltage ranges from 2 V to 5.5 V.
The control loop architecture is based on a constant frequency peak current mode, while high efficiency at light loads is achieved by a low consumption functionality.
The very low quiescent current (25 μA) and shutdown current (0.2 μA) means that the device is very suitable for supplying battery-powered equipment like PDAs, hand-held terminals, DSCs (digital still cameras) and cellular phones.
The switching frequency is internally set at 600 kHz, but the device can be externally synchronized up to 1.4 MHz. An internal reference voltage of 0.6 V (typ.) allows the device to regulate a minimum output voltage of the same low value.
The low MOSFET RDS(on)ensures high efficiency at high output current.
Additional beneficial features are: hysteretic UVLO, OVP, constant current short-circuit protection, Power Good and thermal shutdown.
The MSOP8 package allows significant space savings on the board.
技术特性
| 功能框图 |
STEVAL-ISA078V1 订购信息
| 订购型号 | 产品状态 | 美金价格 | 数量 | 封装 | 包装形式 | 温度范围 | 材料声明 |
| STEVAL-ISA078V1 | Preview | 1000 |
DATA BRIEF
| 描述 | 版本 | 大小 |
| STEVAL-ISA078V1 : DB1573: High efficiency synchronous step-up regulator based on the L6926 | 1 | 1093KB |
APPLICATION NOTES
| 描述 | 版本 | 大小 |
| AN2787: Monolithic VR demonstration board for chipset and DDR2/3 supply for ultramobile PC (UMPC) applications | 1 | 2594KB |
| AN2936: 10 W SMPS with HV power MOSFET and the L6565 for three-phase industrial applications | 1 | 303B |
BILL OF MATERIALS
| 描述 | 版本 | 大小 |
| Bill of materials | 1.0.0 | 72KB |
SCHEMATIC PACKS
| 描述 | 版本 | 大小 |
| Board schematic | 1.0.0 | 28KB |
PCB LAYOUTS
| 描述 | 版本 | 大小 |
| PCB layout | 1.0.0 | 181KB |
