Load Disconnection Function, 1.2A Step-up DC/DC Converters
XC9147 series are synchronous step-up DC/DC converters with a 0.2Ω(TYP.) N-channel driver transistor and a 0.2Ω(TYP.) synchronous P-channel switching transistor built-in. A highly efficient and stable current can be supplied up to 1.2A by reducing ON resistance of the built-in transistors.
The series are able to start operation under the condition which has 0.9V input voltage to generate 3.3V output voltage with a 22Ω(TBD) load resistor, suitable for mobile equipment using only one Alkaline battery or one Nickel metal hydride battery.
The output voltage can be set from 1.8V to 5.5V (±2.0%) in steps of 0.1V.With the built-in oscillator, either 1.2MHz or 3.0MHz can be selected for suiting to your particular application.
In standby mode, the CL discharge function lowers the output voltage at high speed to prevent malfunction of output equipment. The G/J type can stop the operation of the IC and reduce the leakage of alkaline batteries when the battery voltage drops by UVLO function.
The release voltage of UVLO is 1.6V (±3.0% accuracy).
Typical Application Circuit
|Input Voltage Range||0.65V～6.0V|
|Fixed Output Voltage||1.8V～5.5V (0.1V increments, A Type)
2.2V～5.5V (0.1V increments, Other than A Type)
|Oscillation Frequency||1.2MHz (±15%)
|Output Current||650mA @VOUT=5.0V, VBAT=3.3V (TYP.)
500mA @VOUT=3.3V, VBAT=1.8V (TYP.)
|Control Mode Selection||PWM|
|Load Transient Response||100mV@VOUT=3.3V,VBAT=1.8V
|Protection Circuits||Thermal Shutdown
Integral Latch (D/J Type)
Short Circuit Protection (D/J Type)
UVLO (G/J Type)
|Output Capacitor||Ceramic Capacitor|
|Operating Ambient Temperature||-40℃ ～ 105℃|
|Environmentally Friendly||EU RoHS Compliant, Pb Free|
|Package||SOT-89-5||Number of Pins||5|
|Pcs/Reel||1,000||Package Size(mm)||4.5 x 4.6 x 1.6|
|Package||USP-6C||Number of Pins||6|
|Pcs/Reel||3,000||Package Size(mm)||1.8 x 2.0 x 0.6|