ACE509

                                                                                           ACE509                                               Technology Description Low noise, fast response 500mA LDO regulator ACE509 series is a group of positive voltage output, low power consumption, low dropout voltage regulator. ACE509 can provide output value in the range of 1.2V~4.5V every 0.1V step. It also can be customized on command. ACE509 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module with discharge capability. ACE509 has excellent load and line transient response and good temperature characteristics, which can assure the stability of chip and power system. And it uses trimming technique to guarantee output voltage accuracy within±2%. Features • • • • • • • • • • • • • • • • Low Power Consumption: 75uA（Typ.） Low output noise (47uVRMS) Standby Mode: 0.1uA Low dropout Voltage: 0.46V@500mA (Typ.) High Ripple Rejection: 66dB@100Hz (Typ.) Low Temperature Coefficient: ±100ppm/°C Excellent Line regulation: 0.05%/V Build-in chip enable and discharge circuit Output Voltage Range: 1.2V~4.5V (customized on command every 0.1V step) Highly Accurate: ±2% (±1% customized) Output Current Limit Application Power source for cellular phones and various kind of PCSs Battery Powered equipment Power Management of MP3, PDA, DSC, Mouse, PS2 Games    Reference Voltage Source Regulation after Switching Power   Typical Performance Characteristic: ACE509-2.8V Output I load (mA) VER 1.2 1                                                                                             ACE509                                               Technology Absolute Maximum Ratings Parameter Input Voltage Output Current Power Dissipation SOT-23-5 SOT-23-3 SOT-89-3 TO-92 Junction temperature Storage temperature Symbol Low noise, fast response 500mA LDO regulator Max 10 500 250 200 500 350 125 - 45 to 150 Unit V mA mW O O TJ TS C C Packaging Type SOT-23-5 5 4 SOT-23-3 3 SOT-89-3 TO-92 1 2 3 1 2 1 2 3 123 Pin VOUT  VDD  VSS  CE  NC  SOT-23-5 5 1 2 3 4 SOT-23-3 2 3 1 SOT-89-3(A) 1 3 2 SOT-89-3(B) 3 2 1 TO-92 3 1 2 Function Output pin Input Pin Ground Pin Chip Enable Pin No Connection Ordering information Selection Guide ACE509 XX XX + H Halogen - free Pb - free BN: SOT-23-5 BM: SOT-23-3 AMA: SOT-89-3A AMB: SOT-89-3B EP: TO-92 Output Voltage：  1.2V/1.5V…..4.5V VER 1.2 2                                                                                            ACE509                                               Technology Block Diagram Low noise, fast response 500mA LDO regulator Recommended Work Conditions Item Input Voltage Range Ambient Temperature Min Recommended Max Unit 8 V -40 85 ℃ Electrical Characteristics (Test Conditions: Cin=1uF, Cout=3.4uF,TA=25℃, unless otherwise specified.) ACE509, for arbitrary output voltage Symbol Parameter Vin Input Voltage Vout Iout (Max.) Output Voltage Maximun Output Current Dropout Voltage,Vout≥2.8V Line Regulation Load Regulation Supply Current Supply Current (Srandby) Output Voltage Temperature Coefficiency Conditions Vin=Set Vout+1V 1mA≤Iout≤30mA Vin-Vout=1V Iout=100mA Iout=300mA Iout=500mA Iout=40mA 2.8V≤Vin≤8V Vin=Set Vout+1V 1mA≤Iout≤500mA Vin=Set Vout+1V Vin=Set Vout+1V Vce=GND Iout=30mA Min Vout x0.98 500 Typ Vout1 Max 8 Vout X1.02 Units V V mA 88 270 460 0.05 20 75 0.1 ±100 120 350 600 0.2 40 90 1.0 mV mV mV %/V mV uA uA ppm/°C Vdrop 1 △Vout/△Vin·Vout △Vout/△Iout Iss Istandby △Vout/△T·Vout VER 1.2 3                                                                                            ACE509                                               Technology Low noise, fast response 500mA LDO regulator F=100Hz, Ripple=0.5Vp-p Vin=Set Vout+1V Vout=0V 2.0 1.5 0 BW=10Hz~100kHz 47 PSRR Ilim Rpd Vceh Vcel en Ripple Rejection Short Current Limit CE Pull down Resistance CE Input Voltage “H” CE Input Voltage “L” Output Noise 65 200 5.0 10.0 Vin 0.25 dB mA MΩ V V uVrms Vdrop=Vin1-(Vout2*0.98) Vout2 is the output voltage when Vin=Vout1+1.0V and Iout=300mA or Iout=500mA. Vin1 is the input voltage at which the output voltage becomes 98% of Vout1 after gradually decreasing the input voltage. Typical Application Circuit In VDD + Cap CE ACE509 VOUT GND + Cap Out Application hints: Note1:Input capacitor (Cin=1uF) is recommended in all application circuit. Note2:Output capacitor (Cout=3.3uF/4.7uF) is recommended in all application to assure the stability of circuit. Explanation： ACE509 series is a group of positive voltage output, low noise, low power consumption, low dropout voltage regulator. ACE509 can provide output value in the range of 1.2V~4.5V every 0.1V step. It also can be customized on command. ACE509 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module. ACE509 has excellent load and line transient response and good temperature characteristics, which can assure the stability of chip and power system. And it uses trimming technique to guarantee output voltage accuracy within±2%. VER 1.2 4                                                                                            ACE509                                               Technology Typical Performance Characteristics 1.Output Voltage vs. Output Current (with output short protection) Low noise, fast response 500mA LDO regulator 2.Output Voltage vs. Input Voltage   I load(mA) Vin(V) 3.Droput Voltage vs. Output Current 4.Ripple rejection vs. Frequency   I load(mA) Freq(kHz) 5.Line transient response VER 1.2 5                                                                                            ACE509                                               Technology 6.Load transient response Low noise, fast response 500mA LDO regulator   7.Startup response 8.Shutdown response VER 1.2 6                                                                                            ACE509                                               Technology Packing Information SOT-23-5 Low noise, fast response 500mA LDO regulator VER 1.2 7                                                                                            ACE509                                               Technology Packing Information SOT-23-3 Low noise, fast response 500mA LDO regulator VER 1.2 8                                                                                            ACE509                                               Technology Packing Information SOT-89-3 Low noise, fast response 500mA LDO regulator VER 1.2 9                                                                                            ACE509                                               Technology Packing Information TO-92 Low noise, fast response 500mA LDO regulator VER 1.2 10                                                                                            ACE509                                               Technology Low noise, fast response 500mA LDO regulator Notes ACE does not assume any responsibility for use as critical components in life support devices or systems without the express written approval of the president and general counsel of ACE Electronics Co., LTD. As sued herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and shoes failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. ACE Technology Co., LTD. http://www.ace-ele.com/ VER 1.2 11