ace1117 ACE Technology Co., LTD., ace1117 Datasheet - Page 3

• Manufacturer Part Number: ace1117
• Description: 1a Positive Voltage Regulators
• Manufacturer: ACE Technology Co., LTD.

Note1: Low duty cycle pulse testing with which T
Typical Application
Application Hints
designed in such a way that these external capacitor can be omitted if the PCB layout is tight and system
noise is not very high. For better transient and PSRR performance, the Input and Output capacitors are still
recommended.
Input Capacitor
increased without upper limit.
The typical Linear regulator would require external capacitors to ensure stability. However, ACE1117 is
An input capacitor of 10μF is recommended. Ceramic or Tantalum can be used. The value can be
Vin>=3.0V
2: The I
3: The dropout voltage is the input/output differential at which the circuit ceases to regulate against further reduction in input
10uF
Cin
Q
of ACE1117-1.5 is 1.2mA (Typ.)
V
Adjustable Voltage Regulator
OUT
Fixed Voltage Regulator
=V
Vin
REF
ACE1117-3.3
Technology
* (1+R2/R1)+I
ACE1117
ADJ
Vout
J
remains unchanged.
ADJ
* R2
124ohm
R2
24.9ohm
R1
Vout=1.5V
Cout
22uF
1A Positive Voltage Regulators
ACE1117
VER 1.3
3