Dropout Positive Regulator Dropout Voltage 1.3V Output Current. F

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Dropout Positive Regulator Dropout Voltage 1.3V Output Current. F

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AIC1117A
Dropout Positive Regulator
Dropout Voltage 1.3V Output Current. Fast Transient Response. Line Regulation typically 0.015%. Load Regulation typically 0.1%. Current Limiting Thermal Protection. Adjustable Output Voltage Fixed 1.8V, 2.5V, 2.85V, 3.3V, Standard 3-Pin Power Packages.
DESCRIPTION
AIC1117A dropout three terminal regulator with output current capability. output voltage adjustable with resistor divider fixed 1.8V, 2.5V, 2.85V, 3.3V. Dropout voltage guaranteed maximum 1.5V with maximum output current. dropout voltage fast transient response make ideal voltage microprocessor limiting applications. thermal current provide protection
APPLICATIONS
Post Regulator Switching Supply. Active SCSI Termination. Battery Chargers. Constant-Current Regulators. Motherboard Clock Supplies.
protection against overload condition that would create excessive junction temperatures.
TYPICAL APPLICATION CIRCUIT
AIC1117A 10µF VREF VOUT 3.3V
10µF
VREF=VOUT VADJ=1.25V (typ.) VOUT=VREF (1+RF2/RF1)+ IADJ IADJ=55µA (typ.) needed device away from filter capacitors. required stability.
Adjustable Voltage Regulator
AIC1117A-33
VOUT 3.3V 10µF
10µF
Fixed Voltage Regulator
Analog Integrations Corporation Industry Science-Based Industrial Park, Hsinchu, Taiwan TEL: 886-3-5772500 FAX: 886-3-5772510 www.analog.com.tw DS-1117A-01 032802
AIC1117A
ORDERING INFORMATION
AIC1117A-XXCXXX
PACKING TYPE TAPE REEL TUBE (for SOT-223) PACKAGING TYPE TO-252 TO-263 TO-220 SOT-223 OUTPUT VOLTAGE DEFAULT: ADJUSTABLE 1.8V 2.5V 2.85V 3.3V 5.0V Example: AIC1117A-25CETR 2.5V version TO-252 Package Taping Reel Packing Type CONFIGURATION
TO-252
VIEW (GND) VOUT (TAB)
TO-263
VIEW (GND) VOUT (TAB)
TO-220
FRONT VIEW (GND) VOUT (TAB)
SOT-223
VIEW (GND) VOUT (TAB)
SOT-223 Marking
Part AIC1117ACY AIC1117A-18CY AIC1117A-25CY AIC1117A-28CY AIC1117A-33CY AIC1117A-50CY Marking BS17 BS18 BS25 BS28 BS33 BS50
AIC1117A
ABSOLUTE MAXIMUM RATINS
ADJ/GND 125°C TO-220 TO-263 .3°C SOT-223 Thermal Resistance (Junction Ambient) TO-220 (Assume ambient airflow, heatsink) TO-263 SOT-223 TO-252 Storage Temperature Range Lead Temperature (Soldering) sec. .15°C 50°C/W .60°C/W .155°C/W .100°C/W TO-252 .12.5°C Operating Junction Temperature Range Thermal Resistance (Junction Case)
Power Dissipation .Internally Limited
65°C 150°C .260°C
ELECTRICAL CHARACTERISTICS
otherwise specified) PARAMETER
(VIN=5V, TJ=25°C, IO=10mA, Unless
TEST CONDITIONS
TJ=25°C 0°CTJ125°C 2.65VVIN7V 10mAIO1A AIC1117A-18, VIN=3.3V AIC1117A-25, VIN=5V AIC1117A-28, VIN=5V AIC1117A-33, VIN=5V
MIN.
1.238
TYP.
1.25
MAX.
1.262
UNIT
Reference Voltage
1.225
1.25
1.275
1.78 2.47 2.82 3.26 4.95
1.80 2.50 2.85 3.30 5.00
1.82 2.53 2.88 3.33 5.05
Output Voltage
AIC1117A-50, VIN=7V AIC1117A 0°CTJ125°C 2.65VVIN7V 10mAIO1A
0.98VOUT
VOUT
1.02VOUT
AIC1117A
ELECTRICAL CHARACTERISTICS
PARAMETER
Line Regulation
(Continued) MIN. TYP.
0.015 0.035
TEST CONDITIONS
2.65VIN7V, TJ=25°C 0°CTJ125°C TJ=25°C, IO=10mA 0°CTJ125°C VOUT, VREF=1%, IO=1A 0°CTJ125°C 0°CTJ125°C 2.65VIN7V 10mAIO1A 0°CTJ125°C 2.65VIN7V
MAX.
UNIT
%VOUT
Load Regulation
%VOUT
Dropout Voltage Current Limit
Adjusted Current (IADJ)
Adjusted Current Change (IADJ)
10mAIO1A 0°CTJ125°C IO=0.5A 0°CTJ125°C 0°CTJ125°C 0°CTJ125°C 10Hzf10KHz 120Hz input ripple COUT=25µF
Temperature Stability Minimum Load Current Adj. Quiescent Current Fixed Version) Output Noise VOUT) Ripple Rejection Ratio
0.003
VOUT %VOUT
AIC1117A
TYPICAL PERFORMANCE CHARACTERISTICS
Output Voltage
Output Voltage (mV, VIN=5V CIN=1µF COUT=10µF (Tantalum) VOUT=3.3V
0.05
-0.05 -0.1
-100
Input Voltage
COUT=10µF (Tantalum) VOUT=3.3V
Load Current
0.4A
0.1A
Time (µS)
Time (µS) Fig. Line Transient Response
Fig. Load Transient Response
Minimum Differential Voltage
1.26
Minimum Operating Current (mA)
1.24
1.22
1.20
1.18
1.16
Output Current (mA)
1000
Differential Voltage Fig. Minimum Operating Current
Fig.
Dropout Voltage (VOUT=3.3V)
Minimum Load Current (mA)
TJ=125°C
TJ=125°C TJ=0°C
Input/Output Differential
Fig. Minimum Load Current (Adjustable Version)
AIC1117A
BLOCK DIAGRAM
VREF 1.25V
Current Amp.
Thermal Limit 55µA
Current Limit VOUT fixed voltage device
DESCRIPTIONS
Providing VREF=1.25V (typ.) adjustable VOUT. VREF=VOUT-VADJ IADJ=55µA (typ.) (GND PIN- Power ground.) Adjustable output voltage. Power Input.
VOUT
AIC1117A
PHYSICAL DIMENSIONS
TO-220 (unit:
3.81±0.27
SYMBOL
3.56 14.23 9.66 2.29 0.50 0.51 2.04 12.70
4.82 16.51 10.66 2.79 1.15 1.10 1.39 2.92 14.73
TO-252 (unit:
SYMBOL
2.19 1.02 0.64 5.21 0.46 5.33 6.35 2.28 (TYP.) 9.40 0.51
2.38 1.27 0.88 5.46 0.58 5.59 6.73 10.42
AIC1117A
SOT-223
1.80
SYMBOL
0.02 0.60 2.90 0.24 6.30 3.30 6.70
0.12 0.80 3.15 0.35 6.80 3.70 7.30
(PLCS)
2.30 (TYP.)
0.91
SOT-223 Marking
Part AIC1117ACY AIC1117A-18CY AIC1117A-25CY AIC1117A-28CY AIC1117A-33CY AIC1117A-50CY Marking BS17 BS18 BS25 BS28 BS33 BS50
TO-263 (unit:
SYMBOL
4.06 0.50 1.14 1.14 8.63 9.65 14.60 2.28
4.83 1.00 1.40 1.40 9.66 10.29 15.88 2.80 1.40
2.54 (TYP.)

Dropout Positive Regulator Dropout Voltage 1.3V Output Current. F

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