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 1.5 1 ACE509 Low noise, fast response 500mA LDO regulator Absolute Maximum Ratings Parameter Symbol Max Unit Input Voltage 12 V Output Current Power Dissipation SOT-23-5 SOT-23-3L SOT-89-3 SOT-89-5 500 mA TO-92 Junction temperature TJ Storage temperature TS 250 250 500 mW 50mW for normal application 800mW with 10mm*20mm heat dissipation coil 500 O 125 C O - 45 to 150 C Packaging Type SOT-23-5 5 1 SOT-23-3L 4 2 3 SOT-89-5 3 1 5 2 SOT-89-3 TO-92 4 1 2 3 1 2 3 123 SOT-23-5 SOT-23-3L SOT-89-5 SOT-89-3 TO-92 Description Function 5 2 5 3 3 VOUT Output pin 1 3 4 2 1 VDD Input Pin 2 1 2 1 2 VSS Ground Pin 3 3 CE Chip Enable Pin 4 1 NC No Connection Ordering information ACE509 XX XX + H Halogen - free Pb - free BN: SOT-23-5 BM: SOT-23-3L AN: SOT-89-5 AMB: SOT-89-3 EP: TO-92 Output Voltage：1.2V/1.5V…..4.5V VER 1.5 2 ACE509 Low noise, fast response 500mA LDO regulator Block Diagram Recommended Work Conditions Item Min Max Unit Input Voltage Range 10 V 85 ℃ Ambient Temperature -40 Electrical Characteristics (Test Conditions: Cin=1uF, Cout=3.4uF,TA=25℃, unless otherwise specified.) ACE509, for arbitrary output voltage Symbol Parameter Vin Conditions Min Typ Input Voltage Output Voltage Vout Iout (Max.) 1 Vdrop Vout>1.5V Vout<=1.5V Maximun Output Current Dropout Voltage,Vout≥2.8V △Vout/△Vin∙Vout Line Regulation △Vout Load Regulation Iss Supply Current Supply Current (Srandby) Output Voltage Istandby △Vout/△T∙Vout Vin=Set Vout+1V 1mA≤Iout≤30mA Vout x0.98 Vout -0.03 Vin-Vout=1V 500 Vout Vout Max Units 10 Vout X1.02 Vout +0.03 V V mA Iout=100mA 88 120 mV Iout=300mA 270 350 mV Iout=500mA Iout=40mA 2.8V≤Vin≤8V Vin=Set Vout+1V 1mA≤Iout≤500mA 460 600 mV 0.05 0.2 %/V 20 40 mV 75 90 uA 0.1 1.0 uA Vin=Set Vout+1V Vin=Set Vout+1V Vce=GND Iout=30mA ±100 ppm/C VER 1.5 3 ACE509 Low noise, fast response 500mA LDO regulator Temperature Coefficiency PSRR Ripple Rejection Ilim Short Current Limit Vceh CE Pull down Resistance CE Input Voltage “H” Vcel CE Input Voltage “L” Rpd F=100Hz, Ripple=0.5Vp-p Vin=Set Vout+1V Vout=0V 2.0 65 dB 200 mA 5.0 10.0 M 1.5 Vin V 0 0.25 V 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 Note :Input capacitor (Cin=1uF) and Output capacitor (Cout=1uF/2.2uF) are recommended in all application 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 1.5 4 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 1.5 5 ACE509 Low noise, fast response 500mA LDO regulator 6.Load transient response 7.Startup response 8.Shutdown response VER 1.5 6 ACE509 Low noise, fast response 500mA LDO regulator Packing Information SOT-23-5 SOT-23-3L VER 1.5 7 ACE509 Low noise, fast response 500mA LDO regulator Packing Information SOT-89-3 SOT-89-5 VER 1.5 8 ACE509 Low noise, fast response 500mA LDO regulator Packing Information TO-92 VER 1.5 9 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 1.5 10