ACE505

Low noise 150mA LDO regulator

VER 1.2 4

Ripple=0.5Vp-p

Vin=Set Vout+1V

Ilim

Short Current Limit

Vout=0V

20

mA

Rpd

CE Pull down

Resistance

2.0

5.0

10.0

M

Ω

Vceh

CE Input Voltage “H”

1.5

Vin

V

Vcel

CE Input Voltage “L”

0

0.25

V

en

Output Noise

BW=10Hz~100kHz

27

uVrms

Electrical Characteristics by Output Voltage

Output Voltage

Vout (V)

Condition

Typ.

Max.

Vout =1.5V

0.38

0.70

Vout = 1.6V

0.36

0.65

Vout = 1.7V

0.34

0.60

1.8

≤ Vout ≤ 2.0

0.32

0.55

2.1

≤ Vout ≤ 2.7

0.28

0.50

2.8

≤ Vout ≤ 4.0

Iout = 120mA

0.22

0.35

Typical Application Circuit

CE

In

ACE505

Out

+

Cap

GND

+

Cap

Application hints:

Note1: Input capacitor (Cin=1uF) is recommended in all application circuit.

Note2: Output capacitor (Cout=1uF/2.2uF) is recommended in all application to assure the stability of

circuit.

Explanation：

ACE505 series is a group of positive voltage output, low noise, 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.