Technology ACE509 Low noise, fast response 500mA LDO regulator Description 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 Technology ACE509 Low noise, fast response 500mA LDO regulator Absolute Maximum Ratings Parameter Symbol Max Unit Input Voltage 10 V Output Current Power Dissipation SOT-23-5 SOT-23-3 SOT-89-3 TO-92 Junction temperature Storage temperature 500 mA TJ TS 250 200 500 350 125 - 45 to 150 mW O O C C Packaging Type SOT-23-5 5 1 Pin VOUT VDD VSS CE NC SOT-23-3 4 2 3 SOT-23-5 5 1 2 3 4 SOT-89-3 TO-92 3 1 SOT-23-3 2 3 1 2 1 SOT-89-3(A) 1 3 2 2 3 SOT-89-3(B) 3 2 1 123 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 Technology ACE509 Low noise, fast response 500mA LDO regulator Block Diagram 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 Conditions Min Typ Vout1 Vout Output Voltage Vin=Set Vout+1V 1mA≤Iout≤30mA Vout x0.98 Iout (Max.) Maximun Output Current Vin-Vout=1V 500 Vdrop 1 Dropout Voltage,Vout≥2.8V △Vout/△Vin·Vout Line Regulation △Vout/△Iout Load Regulation Iss Supply Current Supply Current (Srandby) Output Voltage Temperature Coefficiency Istandby △Vout/△T·Vout Max 8 Vout X1.02 Units V V mA Iout=100mA 88 120 mV Iout=300mA Iout=500mA 270 460 350 600 mV mV Iout=40mA 2.8V≤Vin≤8V 0.05 0.2 %/V 20 40 mV 75 90 uA 0.1 1.0 uA Vin=Set Vout+1V 1mA≤Iout≤500mA Vin=Set Vout+1V Vin=Set Vout+1V Vce=GND Iout=30mA ±100 ppm/°C VER 1.2 3 Technology Low noise, fast response 500mA LDO regulator PSRR Ripple Rejection Ilim Short Current Limit CE Pull down Resistance CE Input Voltage “H” CE Input Voltage “L” Output Noise Rpd Vceh Vcel en ACE509 F=100Hz, Ripple=0.5Vp-p Vin=Set Vout+1V Vout=0V 2.0 65 dB 200 mA 5.0 1.5 0 BW=10Hz~100kHz 47 10.0 MΩ Vin 0.25 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 CE ACE509 In VDD VOUT Out + Cap GND + Cap 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 Technology ACE509 Low noise, fast response 500mA LDO regulator Typical Performance Characteristics 1.Output Voltage vs. Output Current (with output short protection) I load(mA) 3.Droput Voltage vs. Output Current I load(mA) 2.Output Voltage vs. Input Voltage Vin(V) 4.Ripple rejection vs. Frequency Freq(kHz) 5.Line transient response VER 1.2 5 Technology ACE509 Low noise, fast response 500mA LDO regulator 6.Load transient response 7.Startup response 8.Shutdown response VER 1.2 6 Technology ACE509 Low noise, fast response 500mA LDO regulator Packing Information SOT-23-5 VER 1.2 7 Technology ACE509 Low noise, fast response 500mA LDO regulator Packing Information SOT-23-3 VER 1.2 8 Technology ACE509 Low noise, fast response 500mA LDO regulator Packing Information SOT-89-3 VER 1.2 9 Technology ACE509 Low noise, fast response 500mA LDO regulator Packing Information TO-92 VER 1.2 10 Technology ACE509 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