ACE505 Low noise 150mA LDO regulator Description ACE505 series is a group of positive voltage output, low power consumption, low dropout voltage regulator. ACE505 can provide output value in the range of 1.2V~5.0V every 0.1V step. It also can be customized on command. ACE505 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module. ACE505 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 (27uVRMS) Standby Mode: 0.1uA Low dropout Voltage: 0.2V@100mA (Typ.) High Ripple Rejection: 65dB@1kHz (Typ.) Low Temperature Coefficient: ±100ppm/C Excellent Line regulation: 0.05%/V Build-in chip enable circuit Output Voltage Range: 1.2V~5.0V (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: ACE505-1.8V Output Output Current Iout(mA) VER 1.4 1 ACE505 Low noise 150mA LDO regulator Absolute Maximum Ratings Parameter Symbol Max Unit Input Voltage 10 V Output Current Power Dissipation SOT-23-5 SC-70-5 Operating Junction temperature 200 mA mW TJ 250 250 125 Storage temperature TS - 45 to 150 O C O C Packaging Type SC-70-5 / SOT-23-5 5 1 4 2 3 SC-70-5 SOT-23-5(A) SOT-23-5(B) Description Function 5 5 1 VOUT Output pin 1 1 3 VDD Input Pin 2 2 2 GND Ground Pin 3 3 4 CE Chip Enable Pin 4 4 5 NC No Connection Ordering information ACE505 XX XX + H Halogen - free Pb - free QM: SC-70-5 BNA: SOT-23-5(A) BNB: SOT-23-5(B) Output Voltage：1.2V/1.5V…..5.0V VER 1.4 2 ACE505 Low noise 150mA LDO regulator Block Diagram Recommended Work Conditions Item Min Max Unit Input Voltage Range 8 V 85 ℃ Ambient Temperature -40 Electrical Characteristics (Test Conditions: Cin=1uF, Cout=2.2uF,TA=25℃, unless otherwise specified.) ACE505, for arbitrary output voltage Symbol Parameter Vin Input Voltage Vout Iout (Max.) Dropout Voltage △Vout / △Vin∙Vout △Vout / △Iout Iss Istandby Output Voltage Vout>1.5V Vout<=1.5V Maximun Output Current Input-Output Voltage Differentia Line Regulation Load Regulation Supply Current Supply Current (Srandby) Conditions Vin=Set Vout+1V 1mA≤Iout≤30mA Vin-Vout=1V Min Typ 1.8 Vout x0.98 Vout-0.03 Max Unit s 8 Vout X1.02 Vout+0.03 150 V V mA Refer to the Electrical Characteristics by Output Voltage Iout=40mA 1.6V≤Vin≤8V Vin=Set Vout+1V 1mA≤Iout≤80mA Vin=Set Vout+1V Vin=Set Vout+1V Vce=Gnd 0.05 0.2 %/V 12 40 mV 25 50 uA 0.1 1.0 uA VER 1.4 3 ACE505 Low noise 150mA LDO regulator △Vout/ △T∙Vout Output Voltage Temperature Coefficiency PSRR Ripple Rejection Ilim Short Current Limit Vceh CE Pull down Resistance CE Input Voltage “H” Vcel CE Input Voltage “L” en Output Noise Rpd Iout=30mA F=1kHz, Ripple=0.5Vp-p Vin=Set Vout+1V Vout=0V 2.0 ±100 ppm /C 65 dB 20 mA 10.0 M 1.5 Vin V 0 0.25 V uVr ms BW=10Hz~100kHz 5.0 27 Electrical Characteristics by Output Voltage Output Voltage Vout (V) Vout =1.5V Vout = 1.6V Vout = 1.7V 1.8 Vout 2.0 2.1 Vout 2.7 2.8 Vout 4.0 Dropout Voltage, VDIF (V) Condition Typ. 0.38 0.36 0.34 Iout = 120mA 0.32 0.28 0.22 Max. 0.70 0.65 0.60 0.55 0.50 0.35 Typical Application Circuit CE ACE505 In VDD VOUT Out + Cap GND + Cap Application hints: Note: Input capacitor (Cin=1uF) and Output capacitor (Cout=1uF/2.2uF) are recommended in all application circuit. VER 1.4 4 ACE505 Low noise 150mA LDO regulator Typical Performance Characteristics 1.Output Voltage vs. Output Current (with output short protection) ACE505-1.8V Output Current Iout (mA) 3.Droput Voltage vs. Output Current Output Current Iout (mA) 2.Output Voltage vs. Input Voltage ACE505-1.8V Input Voltage Vin(V) 4.Supply Current vs. Input Voltage Input Voltage Vin(V) VER 1.4 5 ACE505 Low noise 150mA LDO regulator 5.Ripple rejection vs. Frequency 6.Line transient response Frequency f(kHz) 7.Load transient response VER 1.4 6 ACE505 Low noise 150mA LDO regulator Packing Information SC-70-5 VER 1.4 7 ACE505 Low noise 150mA LDO regulator Packing Information SOT-23-5 VER 1.4 8 ACE505 Low noise 150mA 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 1.4 9