ACE509
Technology
Low noise, fast response 500mA LDO regulator
F=100Hz,
Ripple=0.5Vp-p
Vin=Set Vout+1V
Vout=0V
2.0
1.5
0
BW=10Hz~100kHz
47
PSRR
Ilim
Rpd
Vceh
Vcel
en
Ripple Rejection
Short Current Limit
CE
Pull
down
Resistance
CE Input Voltage “H”
CE Input Voltage “L”
Output Noise
65
200
5.0
10.0
Vin
0.25
dB
mA
MΩ
V
V
uVrms
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
In
V
DD
+
Cap
CE
ACE509
V
OUT
GND
+
Cap
Out
Application hints:
Note1:Input capacitor (Cin=1uF) is recommended in all application circuit.
Note2:Output capacitor (Cout=3.3uF/4.7uF) is recommended in all application to assure the stability of
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 1.2 4
ACE [ ACE TECHNOLOGY CO., LTD. ]
