AT1117
Preliminary Product Information
1A Low Dropout Fast Response
Positive Adjustable Regulator
VIN=4.0V, 0A ≤IOUT≤1A
AT1117-25
AT1117-28
AT1117-33
AT1117-50
1
1
1
10 mV
10 mV
10 mV
15 mV
(Note 1)
VIN=4.35V, 0A ≤IOUT≤1A
(Note 1)
VIN=4.75V, 0A ≤IOUT≤1A
(Note 1)
VIN=6.5V, 0A ≤IOUT≤1A
(Note 1)
1
1
IOUT=100mA (Note 2)
IOUT=500mA (Note 2)
IOUT=1A (Note 2)
1.1
V
V
Dropout Voltage
VD
1.05 1.2
1.1 1.3
V
Current Limit
Adjust Pin Current
ILIMIT (VIN-VOUT)=5V
1000
60
mA
µA
IADJ
∆IADJ
Io
(VIN-VOUT)=3V, IOUT=10mA
60 120
0A≤IOUT≤1A,
Adjust Pin Current
Minimun Load Current
Ripple Rejection
0.2
1.7
75
5
µA
mA
dB
1.5V≤ (VIN-VOUT) ≤12V
(VIN-VOUT)=12V (Note 1)
FRIPPLE=120HZ, VRIPPLE=1VP-P,
(VIN-VOUT)=3V
PSRR
TJ=25℃, 30ms Pulse
Thermal Rejection
Temperature Stability
Long Term Stability
TR
TS
LS
0.01 0.1 %/W
0.5
0.3
%
%
TJ=125℃, 1000Hrs
TJ=25℃, 10Hz≤F≤10KHz,
RMS Output Noise
Thermal Resistance
VN
0.003
%
(% of VOUT)
℃/W
10 mA
10 mA
10 mA
10 mA
10 mA
(Junction-to-Case, at Tab)
15
5
θJC
AT1117-18
AT1117-25
AT1117-28
AT1117-33
AT1117-50
VIN≤12V
VIN≤12V
5
Quiescent Current
IIN
VIN≤12V
5
VIN≤12V
5
VIN≤12V
5
Note 1: See thermal regulation specifications for changes in output voltage due to heating effects. Load line regulations are mea-
sured at a constant junction temperature by low duty cycle pulse testing.
Note 2: Dropout voltage is specified over the full output current range of the device. Dropout voltage is defined as the minimum
input/output differential measured at the specified output current. Test points and limits are also shown on the Dropout Voltage
curve.
Note 3: Minimum load current is defined as the minimum output current required to maintain regulation.
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
Email: service@aimtron.com.tw
4
AIMTRON [ AIMTRON TECHNOLOGY ]
