DESCRIPTION AIC1084 dropout three terminal regulator with output

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DESCRIPTION AIC1084 dropout three terminal regulator with output

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AIC1084 Dropout Positive Adjustable Regulator
DESCRIPTION
AIC1084 dropout three terminal regulator with output current capability. output voltage adjustable with resistor divider fixed 3.3V. Dropout guaranteed maximum 1.4V maximum output current. dropout voltage fast transient response make ideal voltage microprocessor applications. Internal current thermal limiting provides protection against overload condition that would create excessive junction temperatures.
Dropout Voltage 1.3V Output Current.
Fast Transient Response. Extremely Tight Line Load Regulation. Internal Thermal Current Limiting. Adjustable Output Voltage Fixed 1.5V, 1.8V, 3.3V. Standard 3-Pin Power Packages.
APPLICATIONS
Mother Board Power Supplies. Microprocessor Power Supplies. High Current Regulator. Post Regulator Switching Supply.
TYPICAL APPLICATION CIRCUIT
10µF AIC1084 VREF VOUT 3.3V
10µF
F=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
10µF
AIC1084-33
VOUT 3.3V
10µF
Fixed Voltage Regulator
Analog Integrations Corporation DS-1084-02
Industry Science Based Industrial Park, Hsinchu Taiwan, TEL: 886-3-5772500 FAX: 886-3-5772510
www.analog.com.tw
AIC1084
ORDERING INFORMATION
AIC1084-XXXX
PACKAGING TYPE TO-252 TO-263 TO-220 TO-263AA
ORDER NUMBER
AIC1084CE (TO-252)
CONFIGURATION
FRONT VIEW (GND) VOUT (TAB)
TEMPERATURE RANGE 0°C~70°C OUTPUT VOLTAGE DEFAULT: ADJ. 1.5V 1.8V 3.3V
AIC1084CM (TO-263)
FRONT VIEW (GND) VOUT (TAB)
AIC1084CMA (TO-263AA)
FRONT VIEW (GND) VOUT (TAB)
AIC1084CT (TO-220)
FRONT VIEW (GND) VOUT (TAB)
ABSOLUTE MAXIMUM RATINGS
ADJ/GND Storage Temperature Range 65°C 150°C TO-252 TO-252 TO-263AA TO-220 Lead Temperature (Soldering) sec. 15°C/W 100°C/W 60°C 60°C 50°C TO-263, TO263AA, TO-220. Thermal Resistance Junction Ambient (Assume ambient airflow, heatsink) TO-263 Operating Junction Temperature Range 0°C~ 125°C Thermal Resistance Junction Case
.260°C
AIC1084
TEST CIRCUIT
Refer TYPICAL APPLICATION CIRCUIT.
ELECTRICAL CHARACTERISTICS
specified)
IN=5V, TA=25°C, IO=10mA, Unless otherwise
PARAMETER Reference Voltage Output Voltage Line Regulation
TEST CONDITIONS AIC1088 (Adj.) TA=25°C AIC1088-33 2.75V 5.25V VOUT+1V TA=25°C
MIN. 1.238 3.26
TYP. 1.25 3.30
MAX. 1.262 3.34
UNIT
0.015
Load Regulation Dropout Voltage
10mA TA=25°C VOUT, VREF 10mA 800mA 125°C 0.003
Current Limit Adjusted Current Adjusted Current Change (IADJ) Temperature Stability Minimum Load Current Output Noise VOUT) Ripple Rejection Ratio
125°C 2.75V 2.75V 125°C IO=0.5A 125°C 125°C 10Hz 10KHz 120Hz input ripple COUT=25µF OUT)=3V
AIC1084
BLOCK DIAGRAM
1.25V
Current Amp.
Thermal Limit 55µA
Current Limit VOUT fixed voltage device
DESCRIPTION
(GND PINVOUT Providing VREF=1.25V (typ.) adjustable VOUT. VREF=VOUT-V IADJ=55µA (typ.) Power ground.) Adjustable output voltage. Power Input.
TYPICAL
Output Voltage
PERFORMANCE CHARACTERISTICS
Load Transient Response Output Voltage (mV,
Line Transient Response
-0.2 -0.4
Input Voltage
Load Current
VIN=5.0V µF(Tantalum) COUT =10µ F(Tantalum) VOUT=3.3V
-100
COUT =10µ (Tantalum) VOUT=3.3V
2.5A
0.1A
Time (µS)
Time (µS)
AIC1084
TYPICAL
1.35
PERFORMANCE CHARACTERISTICS
Dropout Voltage (VOUT=3.3V) Minimum Operating Current (mA)
(CONTINUED)
Minimum Operating Current
Minimum differential Voltage
1.30
1.25
1.20
1.15
1.10
1.05
Output Current
Differential Voltage
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

DESCRIPTION AIC1084 dropout three terminal regulator with output

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