18V 1.0A Synchronous Step-Up DC/DC Converters
The XC9143 series is a synchronous step-up DC/DC converter that incorporates two driver transistors required for switching operation. The input voltage range can correspond to a wide range from a minimum of 1.3 V to a maximum of 16V.
Built-in low on-resistance driver transistor enable to supply with output current up to 400mA (VOUT=12V, VIN=5.0V). Regarding XC9144, since PFM operation is performed automatically in low output current region, it can support the output power with high efficiency from light load to heavy load.
Since compensation components required for stable operation are built in, it is unnecessary to select external components or perform constant design for phase compensation. Additionally, since each protection function, limit value, etc. are adjusted internally, it is possible to reduce the number of external parts required for operation. Because the on-board package is compact as USP-6C, it contributes to reducing the occupied area together with a small number of parts.
Typical Application Circuit
|Input Voltage Range||1.3V ~ 16.0V|
|Operation Start Voltage||1.7V (TYP.)|
|Output Voltage Range||7.0V ~ 18.0V|
|FB Voltage||1.0V (±1.5%)|
|Oscillation Frequency||1.2MHz, 3.0MHz (±15%)|
|Efficiency||90% @ VOUT=7V, VIN=3.3V, IOUT=200mA
91% @ VOUT=12V, VIN=5.0V, IOUT=200mA
88% @ VOUT=12V, VIN=3.3V, IOUT=100mA
|Output Current||400mA @VOUT=7V, VIN=3.3V@Ta=25℃
400mA @VOUT=12V, VIN=5.0V@Ta=25℃
200mA @VOUT=12V, VIN=3.3V@Ta=25℃
|Protection Circuits||Input Current Limit
|Functions||Inrush Current Prevention|
|Operating Ambient Temperature||-40℃ ~ 105℃|
|Environmentally Friendly||EU RoHS Compliant, Pb Free|
|Package||TSOT-26||Number of Pins||6|
|Pcs/Reel||3,000||Package Size(mm)||2.9 x 2.8 x 1.1|
|Package||USP-6C||Number of Pins||6|
|Pcs/Reel||3,000||Package Size(mm)||1.8 x 2.0 x 0.6|