Preliminary Datasheet LP3210 High Performance Regulated Charge Pump General Description Features The LP3210 is a high performance charge pump DC/DC converter that produces a regulated 5V output. No external inductor is required for operation. The operating voltage range is 2.8V to Vout. Internal soft-start circuitry effectively reduces the in-rush current both while start-up and mode change. The LP3210 features very low quiescent current, over current protection and short circuit protection. The LP3210 is available in SOT-23-6 package. 2.8V to Vout Range Input Voltage Soft Start Function Built-In Short-Circuit Protection Built-in Thermal Protection Over Current Protection Function IQ<1uA in Shutdown SOT23-6 Package RoHS Compliant and 100% Lead (Pb)-Free Typical Application Circuit Vin Package Type B6: SOT23-6 5 3 Vin OUT EN 1 GND F: Pb-Free C- 6 □ □ □ C+ LP3210 - 4 Order Information 2 LP3210 Applications LCD Panel Cellular and Smart mobile phone PDA/DSC Flash LED Driver LP3210 – 03 Ver. 1.3 Datasheet Marking Information Please see website. FEB.-2009 Page 1 of 7 Preliminary Datasheet LP3210 Functional Pin Description P a c k a g e Ty p e Pin Configurations SOT23-6 PIN 1 NAME VOUT DESCRIPTION Output Voltage 2 GND Ground 3 EN Chip Enable (Active High) 4 CN Flying Capacitor Negative Terminal 5 VIN Power Input Voltage 6 CP Flying Capacitor Positive Terminal Function Block Diagram LP3210 – 03 Ver. 1.3 Datasheet FEB.-2009 Page 2 of 7 Preliminary Datasheet LP3210 Absolute Maximum Ratings Input Voltage to GND (VIN) ------------------------------------------------------------------------------------ 6V EN to GND Voltage (Ven) --------------------------------------------------------------------- 0.3V to Vin+0.3V Maximum DC Output Current(Iout) ----------------------------------------------------------------------- 300mA Operating Junction Temperature Range (TJ) ----------------------------------------------------40℃ to 150℃ Maximum Soldering Temperature (at leads, 1 0sec) ----------------------------------------------------- 260℃ Electrical Characteristics (Over recommended operating conditions unless specified otherwise) VIN =3.6V,EN=High, TA=25℃ ) Symbol Parameter Conditions Min. 2.8 LP3210 Typ. Max. Vout Unit VOUT Input Voltage Output Voltage Range IQ Quiescent Current No Load 2 4 mA ISHDN Shutdown Current EN = GND 1 5 µA FOSC Oscillator Frequency 1.2 1.5 MHz ISC Output short Circuit Current Limit Vout<0.5V 450 500 mA VEN(L) Enable Threshold Low 0.4 V VEN(H) Enable Threshold High IEN Input Low Current VIN LP3210 – 03 Ver. 1.3 Datasheet FEB.-2009 5.0 0.9 350 1.5 VIN = VEN = 5.5V -1 V V V 1 µA Page 3 of 7 Preliminary Datasheet LP3210 Typical Operating Characteristics LP3210 – 03 Ver. 1.3 Datasheet FEB.-2009 Page 4 of 7 Preliminary Datasheet LP3210 – 03 Ver. 1.3 Datasheet FEB.-2009 LP3210 Page 5 of 7 Preliminary Datasheet LP3210 – 03 Ver. 1.3 Datasheet FEB.-2009 LP3210 Page 6 of 7 Preliminary Datasheet LP3210 Packaging Information LP3210 – 03 Ver. 1.3 Datasheet FEB.-2009 Page 7 of 7