ACE535C 300mA High PSRR, Fast Response Linear Regulator Description ACE535C series is a group of positive voltage output, low power consumption, low dropout voltage regulator. ACE535C can provide output value in the range of 1.0V~4.5V every 0.1V step. It also can be customized on command. ACE535C includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module with discharge capability. ACE535C 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%. ACE535C is available in SOT23-5 and DFN1x1-4 packages which are lead free. Features • • • • • • • • • • • Low Power Consumption: 50uA (Typ.) Low output noise (47uVRMS) Standby Mode: 0.1uA Low dropout Voltage: 470mV@200mA (Typ.) High Ripple Rejection: 70dB@1KHz (Typ.) Low Temperature Coefficient: ±100ppm/ OC Excellent Line regulation: 0.05%/V Build-in chip enable and discharge circuit Output Voltage Range: 1.0V~4.5V (customized on command every 0.1V step) Highly Accurate: ±2% 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 VER 1.1 1 ACE535C 300mA High PSRR, Fast Response Linear Regulator Typical Performance Characteristic: Line Regulation Absolute Maximum Ratings Parameter Max Max Input voltage 8 Operating Junction Temperature(Tj) 125 Output Current 300 Ambient Temperature(Ta) -40~85 Package Thermal Resistance (θjA) SOT-23-5 SOT-23-5 Power Dissipation DFN1*1-4 220 250 600 Storage temperature (Ts) - 45 to 150 Lead Temperature & Time O 260 C,10S Unit V O C mA O O C C/W mW O C O C Note: 1)Heat Sink Area of PCB for DFN1x1-4 is recommended at least 2.5mmx4mm. 2) Package Thermal Resistance value can be affected by PCB design, outside radiator, ambient airflow, operating power, it just shows for reference. 3) Exceed these limits to damage to the device. 4) Exposure to absolute maximum rating conditions may affect device reliability VER 1.1 2 ACE535C 300mA High PSRR, Fast Response Linear Regulator Packaging Type SOT-23-5 5 DFN1*1-4 4 1 2 3 4 1 SOT-23-5 DFN1*1-4 Description 3 2 (Thermal Pad: Vss) Function 5 1 Vout Output pin 1 4 Vin Input pin 2 2 VSS Ground pin 3 3 CE Chip Enable pin NC No Connection 4 Ordering information ACE535C XX XX + H Halogen - free Pb - free BN: SOT-23-5 IN: DFN1*1-4 Output Voltage: 1.0V/1.5V/1.8V…..4.5V Block Diagram Recommended Work Conditions Item Min Max Unit Input Voltage Range 1.5 6 V Ambient Temperature -40 85 ℃ VER 1.1 3 ACE535C 300mA High PSRR, Fast Response Linear Regulator Electrical Characteristics ACE535C, For Arbitrary Output Voltage.(Test Conditions: Cin=1uF,Cout=1uF,TA=25°C, unless otherwise specified.) Symbol Parameter Vin Input Voltage Vout Output Voltage Vout>1.5V Vout<=1.5V Iout (Max.) Maximun Output Current Vdrop** Dropout Voltage,Vout=1.1V Conditions Min Vin=Set Vout+1V 1mA≤Iout≤30mA 1.5 Vout x0.98 Vout -0.03 300 Vin-Vout=1V Typ Max Units V Vout 6 Vout x 1.02 Vout +0.03 V mA Iout=200mA 470 600 mV Iout=300mA Iout=10mA 1.8V≤Vin≤6V Vin=Set Vout+1V 1mA≤Iout≤300mA Vin=Set Vout+1V Vin=Set Vout+1V Vce=GND 600 800 mV 0.05 0.2 %/V 50 80 mV 50 120 uA 0.1 1.0 uA △Vout △Vin x Vout △Vout △Iout Iss Load Regulation Istandby Supply Current (Srandby) △Vout △T x Vout Output Voltage Temperature Coefficient Iout=30mA ±100 ppm/°C PSRR Ripple Rejection F=1KHz, Ripple=0.5Vp-p Vin=Set Vout+1V 70 dB Ilim Current Limit Rdischarge Discharge Resistor Vceh CE Input Voltage “H” 0.95 Vin V Vcel CE Input Voltage “L” 0 0.25 V en Output Noise Line Regulation Supply Current 500 CE=0, Vout=3.0V BW=10Hz~100kHz mA 150 47 ohm uVrms Note: Iout=100mA @Vout=1.0V - 1.2V Vdrop=Vin1-(Vout2*0.98) Vout2 is the output voltage when Vin=Vout1+1.0V and Iout=300mA. Vin1 is the input voltage at which the output voltage becomes 98% of Vout1 after gradually decreasing the input voltage. EXPLANATION ACE535C series is a group of positive voltage output, low noise, low power consumption, low dropout voltage regulator. ACE535C can provide output value in the range of 1.0V~4.5V every 0.1V step. It also can be customized on command. ACE535C includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module. ACE535C 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 1.1 4 ACE535C 300mA High PSRR, Fast Response Linear Regulator Typical Performance Characteristics (TA=25℃) VER 1.1 5 ACE535C 300mA High PSRR, Fast Response Linear Regulator Typical Performance Characteristics VER 1.1 6 ACE535C 300mA High PSRR, Fast Response Linear Regulator Packing Information SOT-23-5 DFN1*1-4 VER 1.1 7 ACE535C 300mA High PSRR, Fast Response 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 1.1 8