T6319A

tm TE CH T6319A High Efficiency 2X charge Pump FEATURES • Wide Input Range: 2.5V to 5.5V • Available Output Voltages: 2.5V/2.7V/3.0V/3.3V/4.0V/4.5V /5.0V/5.5V • Automatic Step-Up/Step-Down Operation • Low Input Current Ripple • Low Output Voltage Ripple • Minimum Number of External Components-No Inductors • Shutdown Mode • Thermal Protection • High Output Current : VIN>3.0V Output Current 100mA Max. 250mA for pulsed loads • Available Package : SOT23-6/ lead-free GENERAL DESCRIPTION The The T6319A is a switched capacitor voltage converter, that produces a regulated, low ripple output voltage from an unregulated input voltage. A wide-input supply voltage of 2.5V to 5.5V makes the T6319A ideal for a variety of battery sources, such as single cell Li-Ion, or two and three cell nickel or alkalinebased chemistries. The input voltage may vary above and below the output voltage and the output will remain in regulation. It works equally well for step-up or step-down applications without the need for an inductor, providing low EMI DC/DC conversion. The high switching frequency allows the use of small surface-mount capacitors, saving board space and reducing cost. The T6319A is thermally protected. PART NUMBER EXAMPLES Part no. T6319A-25AXG T6319A-30AXG Output Voltage 2.5V 3.0V Package type SOT23-6 lead-free APPLICATIONS • Smart Card Readers • Cellular Phones • White LED Camera Flash • White LED Backlighting • Battery Backup Supplies SOT23-6 lead-free T6319A-50AXG T6319A-55AXG 5.0V 5.5V SOT23-6 lead-free SOT23-6 lead-free TM Technology Inc. reserves the right to change products or specifications without notice. P. 1 Publication Date: MAY. 2007 Revision: A tm VOUT GND EN TE CH T6319A PIN ARRANGEMENT SOT23-6 (Top view) 1 2 3 6 5 4 C+ VIN C- PIN DESCRIPTION SYMBOL VOUT GND EN CVIN C+ Pin No. 1 2 3 4 5 6 Voltage output Ground pin DESCRIPTION Enable signal, high active Flying capacitor “-“ terminal Input supply pin. Flying capacitor “+” terminal TM Technology Inc. reserves the right to change products or specifications without notice. P. 2 Publication Date: MAY. 2007 Revision: A tm TE CH T6319A Absolute Maximum Ratings Supply Voltage …………………………………………………………. -0.3V to 6V EN Pin Input Voltage …………………………………………………… -0.3V to 6V Operating Juction Temperature ………………………………………… -55°C to +150°C Operating temperature range …………………………………………… -55°C to +125°C Storage temperature range ……………………………………………… -65°C to +150°C Lead temperature (soldering, 10sec) …………………………………… 300°C Electrical Characteristics ( VIN=+3.3V, TA = 25°C, CIN = COUT = 10uF, unless otherwise noted ) Symbol VIN Description Input Voltage Output Voltage Tolerance 2.5V< VIN