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Número de pieza | AIC1117 | |
Descripción | 800mA Low Dropout Positive Adjustable Regulator | |
Fabricantes | Analog Intergrations Corporation | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de AIC1117 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
No Preview Available ! AIC1117
800mA Low Dropout Positive Regulator
FEATURES
Dropout Voltage 1.2V at 800mA Output Current.
Fast Transient Response.
Line Regulation, typical at 0.015%.
Load Regulation, typical at 0.1%.
Current Limiting and Thermal Protection.
Adjustable Output Voltage or Fixed at 1.8V, 2.5V,
2.85V, 3.3V, and 5V.
Standard 3-Pin Power Packages.
APPLICATIONS
Active SCSI Terminators.
Post Regulators for Switching Supplies.
Battery Chargers.
PC Add-On Card.
DESCRIPTION
The AIC1117 is a low dropout, three terminals
regulator designed to provide output current
up to 800mA. The device is available in an
adjustable version and fixed output voltage of
1.8V, 2.5V, 2.85V, 3.3V and 5V. Dropout
voltage of maximum of 1.4V is guaranteed at
800mA output current. The quality of low
dropout voltage and fast transient response
make this device ideal for low voltage
microprocessor applications.
The AIC1117 requires output capacitance of a
minimum of 10µF for stability. Built-in output
current limiting and thermal limiting provide
maximal protection to the AIC1117 against
fault conditions.
TYPICAL APPLICATION CIRCUIT
VIN 3 AIC1117 2
5V
VOUT
3.3V
C1 +
10µF
1 ADJ
VREF RF1
125Ω
1%
RF2
205Ω
+
C2
10µF
(Note1)
1%
VREF=VOUT - VADJ=1.25V (typ.)
VOUT=VREF x (1+RF2/RF1)+ IADJ x RF2
IADJ=55µA (typ.)
(1) C1 needed if device is far away from filter
capacitors.
(2) C2 required for stability.
Adjustable Voltage Regulator
VIN 3 AIC1117-33 2
5V
1
C1 +
10µF
GND
VOUT
3.3V
+
C2
10µF
(Note1)
Fixed Voltage Regulator
Analog Integrations Corporation
Si-Soft Research Center
3A1, No.1, Li-Hsin Rd. I , Science Park , Hsinchu 300, Taiwan , R.O.C.
TEL: 886-3-5772500
FAX: 886-3-5772510 www.analog.com.tw
DS-1117P-05 041206
1
1 page AIC1117
TYPICAL PERFORMANCE CHARACTERISTICS
1.8
1.6
1.4 TA=0°C
1.2 TA=50°C
1.0
0.8 TA=125°C
0.6
0.4
0.2
0.0 0
200 400 600 800 1000
Output Current (mA)
Fig. 1 AIC1117 (ADJ) Dropout Voltage
5
TA=125°C
4
3 TA=25°C
2
TA=0°C
1
01 2 3 4 5 6 7 8 9
Input/ Output Differential (V)
Fig. 2 Minimum Load Current (Adjustable Version)
0.09
0.08 IOUT=500mA (30mS Puls)
0.07 TA=125°C
0.06
0.05
0.04
0.03
0.02
0.01
0.5 1.0 1.5 2.0 2.5 3.0 3.5
Power (Watt)
Fig. 3 AIC1117 (ADJ) Power vs. Thermal Regulation
1.6
1.2 IOUT=0.5A
0.8
0.4
0.0
-0.4
-0.8
-1.2
-1.6
-20
0
20 40 60 80 100 120 140
Temperature (°C)
Fig. 4 AIC1117 (ADJ) Temperature Stability
-20
-30 COUT=3.3µF
-40
COUT=10µF
-50
-60 COUT=25µF
-70
-80101 102 10F3reque1n0c4y (Hz)105 106 107
Fig. 5 AIC1117 (ADJ) Ripple Rejection Ratio (dB)
5
5 Page AIC1117
SOT-223
D
b2
AA
e
e1
SEE VIEW B
WITH PLATING
b
BASE METAL
S SOT-223
Y
M MILLIMETERS
B
O
L
MIN.
MAX.
A 1.80
A1 0.02
A2 1.55
0.10
1.65
b 0.66
b2 2.90
0.84
3.10
c 0.23
D 6.30
0.33
6.70
E 6.70
7.30
E1 3.30
3.70
e 2.30 BSC
e1 4.60 BSC
L 0.90
θ 0°
8°
VIEW B
GAUGE PLANE
SEATING PLANE
Note:
1.Refer to JEDEC TO-261AA.
2.Dimension D and E1 are determined at the outermost extremes
of the plastic body exclusive of mold flash, tie bar burrs, gate
burrs, and interlead flash, but including any mismatch between
the top and bottom of the plastic body.
3.Controlling dimension is millimeter, converted inch dimensions
are not necessarily exact.
11
11 Page |
Páginas | Total 12 Páginas | |
PDF Descargar | [ Datasheet AIC1117.PDF ] |
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