Preliminary Datasheet LP2206 2×600mA,Dual Channel Ultra-Fast CMOS LDO Regulator General Description Features The LP2206 is a dual channel, low noise, and low Wide Operating Voltage Ranges : 2.5V to 6.0V dropout regulator sourcing up to 600mA at each Low-Noise for RF Applications channel. The range of output voltage is from 0.81V to High PSRR: -68dB at 1kHz Vin by operating from 2.5V to 5.5V input. No Noise Bypass Capacitor Required Fast Response in Line/Load Transient TTL-Logic-Controlled Shutdown Input Dual LDO Outputs (280mV/400mA) High Output Accuracy 2% Ultra-low Quiescent Current 75uA Thermal Shutdown Protection RoHS Compliant and 100% Lead (Pb)-Free LP2206 offers 2% accuracy, extremely low dropout voltage (280mV @ 400mA), and extremely low ground current, only 75μA per LDO. The shutdown current is near zero current which is suitable for battery-power devices. Other features include current limiting, over temperature, output short circuit protection. LP2206 can operate stably with very small ceramic output capacitors, reducing required board space and Applications voltages in the TDFN-8(2*2mm) package. CDMA/GSM Cellular Handsets Smart mobile phone Battery-Powered Equipment Ordering Information DSC Sensor Wireless Card component cost. LP2206 is available in fixed output LP2206 Typical Application Circuit LP2206QVF VIN F: Pb-Free QV: TDFN-8 VIN ON Device Marking Package Shipping LP2206 LPS TDFN-8 3K/REEL OFF R1 22pF FB1 2.2uF Marking Information OUT1 OUT1 2.2uF R2 EN1 EN2 OUT2 OUT2 R3 22pF 2.2uF FB2 LP2206 GND R4 YWX Y: Year code. W: Week code. X: Batch numbers. LP2206–00 Version 1.0 May.-2014 Email: [email protected] www.lowpowersemi.com Page 1 of 8 Preliminary Datasheet LP2206 Pin Configurations GND 1 VIN 2 OUT2 3 FB2 8 9 GND 4 EN1 7 OUT1 6 FB1 5 EN2 TDFN-8 (Top View) Functional Pin Description Pin No. Pin Name Pin Function 1 GND Ground pin. 2 VIN Input pin. 3 OUT2 Output pin of channel 2. 4 FB2 Feedback pin of channel 2. 5 EN2 Enable pin of channel 2. 6 FB1 Feedback pin of channel 2. 7 OUT1 Output pin of channel 1. 8 EN1 Enable pin of channel 2. 9 GND Ground pin. LP2206–00 Version 1.0 May.-2014 Email: [email protected] www.lowpowersemi.com Page 2 of 8 Preliminary Datasheet LP2206 Function Block Diagram EN1 VIN SHUTDOWN AND LOGIC CONTROL VREF + FB1 ERROR AMPLIFIER MOS DRIVER VOUT1 CURRENT-LIMIT AND THERMAL PROTECTION GND EN2 SHUTDOWN AND LOGIC CONTROL VREF + FB2 ERROR AMPLIFIER MOS DRIVER VOUT2 CURRENT-LIMIT AND THERMAL PROTECTION GND Absolute Maximum Ratings Supply Input Voltage-------------------------------------------------------------------------------------------------------- 7V Power Dissipation, PD @ TA = 25°C TDFN-8 ------------------------------------------------------------------------------------------------------------------ 1.2W Package Thermal Resistance TDFN-8, θJA ---------------------------------------------------------------------------------------------------------- 95°C/W Lead Temperature (Soldering, 10 sec.) --------------------------------------------------------------------------- 260°C Storage Temperature Range ---------------------------------------------------------------------------- −65°C to 150°C ESD Susceptibility HBM (Human Body Mode) ------------------------------------------------------------------------------------------------2kV MM(Machine-Mode)------------------------------------------------------ ------------------------------------------------200V Recommended Operating Conditions Operation Junction Temperature Range -------------------------------------------------------------- −40°C to 125°C Operation Ambient Temperature Range----------------------------------------------------------------- −40°C to 85°C LP2206–00 Version 1.0 May.-2014 Email: [email protected] www.lowpowersemi.com Page 3 of 8 Preliminary Datasheet LP2206 Electrical Characteristics (VIN = VOUT + 1V, CIN = COUT = 2.2µF,CFB=22pF, TA = 25° C, unless otherwise specified) Parameter Symbol Test Conditions Min Typ. Max Units Output Loading Current ILOAD VEN=VIN,VIN>2.5V 600 mA Current Limit ILIM RLOAD = 1Ω 750 mA Adjustable voltage reference VFB IOUT=1mA Quiescent Current IQ 0.8 0.816 V VEN ≥ 1.4V, IOUT = 0mA 75 130 μA IOUT = 200mA, VOUT >2.8V 140 160 IOUT = 400mA, VOUT >2.8V 280 320 Dropout Voltage VDROP Line Regulation ΔVLINE Load Regulation ΔLOAD 1mA < IOUT < 400mA Standby Current ISTBY VEN = GND, Shutdown EN Input Bias Current Logic-Low Voltage EN Threshold Logic-High Voltage IEN VIL VIH f = 100Hz Rejection Rate f = 1kHz Thermal Shutdown Temperature Version 1.0 IOUT = 1mA VEN = 1V or 5V May.-2014 PSRR 0.01 0.8 VIN = 3V to 5.5V, VIN = 3V to 5.5V, Start-Up IOUT = 10mA TSD Email: [email protected] mV 0.3 % 0.6 % 1 μA 5.3 uA 0.4 Shutdown IOUT = 200mA Power Supply LP2206–00 VIN = (VOUT + 1V) to 5.5V, 10Hz to 100kHz, Output Noise Voltage 0.784 V 1.4 100 −76 −68 150 www.lowpowersemi.com uVRMS dB °C Page 4 of 8 Preliminary Datasheet LP2206 Typical Operating Characteristics LP2206–00 Version 1.0 May.-2014 Email: [email protected] www.lowpowersemi.com Page 5 of 8 Preliminary Datasheet LP2206–00 Version 1.0 May.-2014 Email: [email protected] www.lowpowersemi.com LP2206 Page 6 of 8 Preliminary Datasheet be located no more than 0.5 inch from the VOUT pin of Application Information Like any low-dropout the LP2206 and returned to a clean analog ground. regulator, the external capacitors used with the LP2206 must be carefully selected for regulator stability and performance. Using a capacitor whose value is > 2µF on the LP2206 input and the amount of capacitance can be increased without limit. The input capacitor must be located a distance of not more than 0.5 inch from the input pin of the IC and returned to a clean analog ground. Any good quality ceramic or tantalum can be used for this capacitor. The capacitor with larger value and lower ESR (equivalent series resistance) provides better PSRR and line-transient response. The output capacitor must meet both requirements for minimum amount of capacitance and ESR in all LDOs application. The LP2206 LP2206 is designed Start-up Function Enable Function The LP2206 features an LDO regulator enable/disable function. To ensure the LDO regulator will switch on, the EN turn on control level must be greater than 1.4 volts. The LDO regulator will go into the shutdown mode when the voltage on the EN pin falls below 0.4 volts. To protect the system, the LP2206 have a quick-discharge function. If the enable function is not needed in a specific application, it may be tied to VIN to keep the LDO regulator in a continuously on state mode. Setting the Output Voltage specifically to work with low ESR ceramic output Set the output voltage by selecting the resistive capacitor performance voltage divider ratio. The voltage divider drops the consideration. Using a ceramic capacitor whose output voltage to the 0.8V feedback voltage. Use a value is at least 1µF with ESR is > 25mΩ on 100K resistor for R2 of the voltage divider. Determine theLP2206 output ensures stability. The LP2206 still the high - s ide r es is tor R 1 by the equation: in space-saving and works well with output capacitor of other types due to Vout=(R1/R2+1) × VFB the wide stable ESR range. Output capacitor of larger capacitance can reduce noise and improve load transient response. The output capacitor should LP2206–00 Version 1.0 May.-2014 Email: [email protected] www.lowpowersemi.com Page 7 of 8 Preliminary Datasheet LP2206 Packaging Information LP2206–00 Version 1.0 May.-2014 Email: [email protected] www.lowpowersemi.com Page 8 of 8