ACE519C 500mA High PSRR, Linear Regulator Description ACE519C series are a group of positive voltage output, low power consumption, low dropout voltage regulators. It can provide foldback short-circuit protection and output current limit function. ACE519C can provide output value in the range of 1.0V~4.5V every 0.1V step. It also can be customized on command. ACE519C can also work under a wide input voltage ranging from 2V to 7V. ACE519C includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module. ACE519C 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 • • • • • • • • • • • • • Input voltage range: 2~7V Output voltage range: 1.0V~4.5V (customized on command every 0.1V step) Low power consumption: 35uA (Typ.) Low output noise (47uVRMS) Shutdown mode: 0.1uA Low dropout voltage: 300mV@300mA (Typ.) 500mV@500mA (Typ.) High ripple rejection:70dB@1KHz (Typ.) Low temperature coefficient: ±100ppm/°C Excellent line regulation: 0.05%/V Build-in chip enable circuit Highly accurate: ±2% Output current limit 700mA@VOUT=3.3V Fold-back short circuit current 250mA@ VOUT=3.3V Application • • • • • Power source for cellular phones and various kind of PCSs Battery Powered equipment Power Management of MP3, PDA, DSC, Mouse, PS2 Games Voltage Reference Regulation after Switching Power Typical Performance Characteristic: VER 1.2 1 ACE519C 500mA High PSRR, Linear Regulator Absolute Maximum Ratings Parameter Symbol Max Unit Max Input Voltage VIN 7 V Operating Junction Temperature TJ 125 ℃ 500 mA TA -40~85 ℃ mW TS 250 250 250 -40~150 260 to 85 ℃ Output Current Ambient Temperature Power Dissipation SOT-23-3 SOT-23-5 SOT-89-3 Storage temperature Lead Temperature & Time ℃ Note: Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions may affect device reliability. Packaging Type SOT-23-3 SOT-23-5 3 1 5 2 1 SOT-89-3 4 2 3 1 2 SOT-23-3L SOT-23-5 SOT-89-3 Description 3 Function 2 5 3 Vout Output pin 3 1 2 Vin Input pin 1 2 1 VSS Ground pin 3 CE Chip Enable pin 4 NC No Connection Ordering information ACE519C XX XX + H Halogen - free Pb - free BM: SOT-23-3 BN: SOT-23-5 AM: SOT-89-3 Output Voltage: 1.0V/1.5V/1.8V…..4.5V VER 1.2 2 ACE519C 500mA High PSRR, Linear Regulator Block Diagram Recommended Work Conditions Item Min Max Unit Input Voltage Range 2 7 V Ambient Temperature -40 85 ℃ Electrical Characteristics ACE519C, For Arbitrary Output Voltage.(Test Conditions: Cin=1uF,Cout=1uF,TA=25°C, unless otherwise specified.) Symbol Parameter Vin 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 x Vout △Vout/△Iout Load Regulation Iss Supply Current Istandby Supply Current (Srandby) △Vout / △T x Vout Output Voltage Temperature Coefficient Line Regulation Conditions Min Vin=Set Vout+1V 1mA≤Iout≤30mA 2 Vout x0.98 Vout -0.03 500 Vin-Vout=1V Typ Max Units V Vout 7 Vout x 1.02 Vout +0.03 V mA Iout=100mA 100 150 mV Iout=300mA 300 400 mV Iout=500mA Iout=40mA 2.8V≤Vin≤6V Vin=Set Vout+1V 1mA≤Iout≤500mA Vin=Set Vout+1V Vin=Set Vout+1V Vce=Vss 500 800 mV 0.05 0.2 %/V 70 100 mV 35 80 uA 0.1 1.0 uA Iout=30mA ±100 ppm/° C VER 1.2 3 ACE519C 500mA High PSRR, Linear Regulator F=1KHz, Ripple=0.5Vp-p Vin=Set Vout+1V PSRR Ripple Rejection Ilim Current Limit Rcepd CE pin pull down resistor Vceh CE Input Voltage “H” 1.5 Vin V Vcel CE Input Voltage “L” 0 0.25 V en Output Noise CE=Vin=5V BW=10Hz~100kHz 70 dB 700 mA 5 Mohm 47 uVrms Note: Vdrop=Vin1-(Vout2*0.98) Vout2 is the output voltage when Vin=Vout1+1.0V and 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 ACE519C Note: Input capacitor (Cin=1uF) and Output capacitor (Cout=1uF) are recommended in all application circuit. Explanation： ACE519C series is a group of positive voltage output, low noise, low power consumption, low dropout voltage regulator. ACE519C can provide output value in the range of 1.0V~4.5V every 0.1V step. It also can be customized on command. ACE519C includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module. ACE519C 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 ACE519C 500mA High PSRR, Linear Regulator Typical Performance Characteristics (TA=25℃) VER 1.2 5 ACE519C 500mA High PSRR, Linear Regulator Typical Performance Characteristics Line Transient Response Vout=3.3V, Iout=20mA (Brown: Vin; Red: Vout) Load Transient Response Vin=5V, Vout=3.3V, Iout=1-100mA (Green: Iout; Red: Vout) CE Chip Enable Response VER 1.2 6 ACE519C 500mA High PSRR, Linear Regulator Packing Information SOT-23-5 SOT-23-5 VER 1.2 7 ACE519C 500mA High PSRR, Linear Regulator Packing Information SOT-89-3 VER 1.2 8 ACE519C 500mA High PSRR, Linear 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 9