ACE525 300mA High PSRR, Linear Regulator Description ACE525 series is a group of positive voltage output, low power consumption, low dropout voltage regulator. ACE525 can provide output value in the range of 1.0V~4.4V every 0.1V step. It also can be customized on command. ACE525 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module. ACE525 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: 25uA (Typ) Low Output Noise (47uVRMS) Standby Mode: 0.1uA Low Dropout Voltage 360mV@300mA (Typ.) High Ripple Rejection: 74dB @100Hz (Typ.) Low Temperature Coefficient: ±100ppm/℃ Excellent Line Regulation: 0.05%/V Build-in chip enable Output Voltage Range: 1.0V~4.4V (customized on command every 0.1V step) High 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 Absolute Maximum Ratings Parameter Symbol Max Unit Max Input voltage Power Dissipation SC-70-5 SOT-23-5 DFN1*1-4 SOT-23-3 Junction temperature VIN 8 V TJ 250 250 600 250 125 Storage temperature TS Output Current Ambient Temperature - 45 to 150 300 TA -40 to 85 mW O C O C mA O C VER 1.3 1 ACE525 300mA High PSRR, Linear Regulator Note: Heat Sink Area of PCB for DFN1x1-4 is recommended at least 2.5mmx4mm. Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions may affect device reliability. Packaging Type SC-70-5 SOT-23-5 DFN1*1-4 5 4 1 4 2 3 SOT-23-3 3 3 1 2 Thermal Pad: VSS 1 SC-70-5 SOT-23-5 DFN1*1-4 SOT-23-3 Description 2 Function 5 5 1 2 VOUT Output pin 1 1 4 3 VDD Input pin 2 2 2 1 GND Ground pin 3 3 3 CE Chip Enable pin 4 4 NC No Connection Ordering information ACE525 XX XX + H Halogen - free Pb - free HN: SC-70-5 BN: SOT-23-5 IN: DFN1*1-4 BM : SOT-23-3 Output Voltage：1.0V…..4.4V VER 1.3 2 ACE525 300mA High PSRR, Linear Regulator Block Diagram Explanation： ACE525 series is a group of positive voltage output, low noise, low power consumption, low dropout voltage regulator. ACE525 can provide output value in the range of 1.0V~4.5V every 0.1V step. It also can be customized on command. ACE525 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module. ACE525 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%. Recommended Work Conditions Item Min Max Unit Input Voltage Range 2 6 V Ambient Temperature -40 85 ℃ VER 1.3 3 ACE525 300mA High PSRR, Linear Regulator Electrical Characteristics (Test Conditions: Cin=1uF, Cout=1uF,TA=25℃, unless otherwise specified.) ACE525 for arbitrary output voltage Parameter Symbol Input Voltage Conditions VIN VOUT>1.5V Output Voltage VOUT<=1.5V Maximum Output Current IOUT(Max.) Dropout Voltage, VOUT ≧2.8V Vdrop1 Min Typ 2 VIN=Set VOUT+1V 1mA≦Iout≦30mA VOUT x0.98 VOUT – 0.03 VIN -VOUT=1V 300 VOUT VOUT Max Units 6 V VOUT x 1.02 VOUT + 0.03 V mA IOUT=100mA 115 200 mV 360 420 mV ΔVOUT / ΔVIN•VOUT ΔVOUT / ΔIOUT Iss IOUT=300mA IOUT=40mA 2.8V≦VIN≦6V VIN=Set VOUT+1V 1mA≦IOUT≦300mA VIN=Set VOUT+1V 0.05 0.2 %/V 60 100 mV 25 50 uA Istandby VIN=Set VOUT+1V Vce=VSS 0.1 1.0 uA ΔVOUT / ΔT•VOUT IOUT=30mA ±100 ppm/ ℃ Ripple Rejection PSRR F=100Hz, Ripple=0.5Vp-p VIN=Set VOUT+1V 74 dB Current Limit IIim 500 mA CE Input Voltage “H” Vceh 1.5 VIN V CE Input Voltage “L” Vcel 0 0.25 V Output Noise en Line Regulation Load Regulation Supply Current Supply Current (Standby) Output Voltage Temperature Coefficient BW=10Hz~100kHz 47 uVrms Note: Vdrop=Vin 1-(Vout2*0.98) Vout2 is the output voltage when Vin=Vout1+1.0V and Iout=300mA. Vin is the input voltage at which the output voltage becomes 98% of Vout1 after gradually decreasing the input voltage. VER 1.3 4 ACE525 300mA High PSRR, Linear Regulator PSRR Vout=2.8V Typical Application Circuit ACE525 Note: Input capacitor (Cin=1uF) and Output capacitor (Cout=1uF) are recommended in all application circuit. Typical Performance Characteristics 1.Output Voltage vs. Output Current Load Regulation 2.Output Voltage vs. Input Voltage Lin Regulation VER 1.3 5 ACE525 300mA High PSRR, Linear Regulator 3.Dropout Voltage vs. Output Current Dropout 4.Ripple rejection vs. Frequency PSRR 5.Line transient response Cin=Cout=1uF Iout=10mA Vout=2.8V 6.Load transient response Cin=Cout=1uF Vin=4.0V Vout=2.8V VER 1.3 6 ACE525 300mA High PSRR, Linear Regulator 7.Startup from CE VER 1.3 7 ACE525 300mA High PSRR, Linear Regulator Packing Information SC-70-5 SOT-23-5 VER 1.3 8 ACE525 300mA High PSRR, Linear Regulator Packing Information DFN1*1-4 4L STSLP (1*1mm) PIN #1 DENTIFICATION CHAMFER R0.075mm PIN 1# DOT BY MARKING TOP VIEW BOTTOM VIEW Note. A DIMENSION AS BELOW TABLE Max Nom Min A 0.6 0.55 0.5 SIDE VIEW VER 1.3 9 ACE525 300mA High PSRR, Linear Regulator Packing Information SOT-23-3 VER 1.3 10 ACE525 300mA 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 1.3 11