DROPOUT POSITIVE ADJUSTABLE REGULATOR SPEC DS-1085-01 DESCRI
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AIC1085
DROPOUT POSITIVE ADJUSTABLE REGULATOR
SPEC DS-1085-01
DESCRIPTION
AIC1085 dropout three terminal regulator with output current capability. output voltage adjustable with resistor divider fixed 1.5V, 1.8V, 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 AIC1085 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
AIC1085-33
VOUT 3.3V
10µF
Fixed Voltage Regulator
ANALOG INTEGRATIONS CORPORATION
Industry Road, Science-based IndustrialPark Hsinchu, Taiwan, R.O.C.
www.analog.com.tw
TEL: (8863)577-2500 FAX:(8863)577-2510
AIC1085
DROPOUT POSITIVE ADJUSTABLE REGULATOR
SPEC DS-1085-01
ORDERING INFORMATION
AIC1085-XXXX
PACKAGING TYPE TO-252 TO-263 TO-220
ORDER NUMBER
AIC1085CE (TO-252)
CONFIGURATION
FRONT VIEW (GND) VOUT (TAB)
TEMPERATURE RANGE 0°C~70°C OUTPUT VOLTAGE DEFAULT: ADJ. 1.5V 1.8V 3.3V
AIC1085CM (TO-263)
FRONT VIEW (GND) VOUT (TAB)
AIC1085CT (TO-220)
FRONT VIEW (GND) VOUT (TAB)
ABSOLUTE MAXIMUM RATINGS
ADJ/ Operating Junction Temperature Range
0°C~ 125°
Storage Temperature Range 150° Thermal Resistance Junction Case TO-252 15°C/W TO-263, TO-220 Thermal Resistance Junction Ambient TO-252 100°C/W (Assume ambient airflow, heatsink) TO-263 60°C TO-220 50°C Lead Temperature (Soldering) sec. .260°C
TEST CIRCUIT
Refer TYPICAL APPLICATION CIRCUIT.
ANALOG INTEGRATIONS CORPORATION
Industry Road, Science-based IndustrialPark Hsinchu, Taiwan, R.O.C.
www.analog.com.tw
TEL: (8863)577-2500 FAX:(8863)577-2510
AIC1085
DROPOUT POSITIVE ADJUSTABLE REGULATOR
SPEC DS-1085-01
ELECTRICAL CHARACTERISTICS
specified)
IN=5V, TA=25°C, IO=10mA, Unless otherwise
PARAMETER
Reference Voltage
TEST CONDITIONS
AIC1085 (Adj.) TA=25°C AIC1085-15 VIN=5V AIC1085-18 VIN=5V AIC1085-33 VIN=5V 2.75V 5.25V VOUT+1V TA=25°
MIN.
TYP.
MAX.
UNIT
1.238 1.48 1.78 3.26
1.25 1.50 1.80 3.30
1.262 1.52 1.82 3.34
Output Voltage Line Regulation
0.015
Load Regulation
10mA TA=25°C VOUT, VREF 10mA 125°C
Dropout Voltage
Current Limit Adjusted Current (IADJ) Adjusted Current Change (IADJ) Temperature Stability Minimum Load Current Output Noise VOUT)
125° 2.75V 2.75V 125° IO=0.5A 125° 125°C 10Hz 10KHz 120Hz input ripple
0.003
Ripple Rejection Ratio
COUT=25µF OUT)=3V
ANALOG INTEGRATIONS CORPORATION
Industry Road, Science-based IndustrialPark Hsinchu, Taiwan, R.O.C.
www.analog.com.tw
TEL: (8863)577-2500 FAX:(8863)577-2510
AIC1085
DROPOUT POSITIVE ADJUSTABLE REGULATOR
SPEC DS-1085-01
BLOCK DIAGRAM
Current Amp. VREF 1.25V
Thermal Limit
Current Limit VOUT fixed voltage device
DESCRIPTIONS
Providing VREF=1.25V (typ.) adjustable VOUT. VREF =VOUT-V IADJ=55µA (typ.) Power Ground.) VOUT Adjustable output voltage. Power Input.
(GND
ANALOG INTEGRATIONS CORPORATION
Industry Road, Science-based IndustrialPark Hsinchu, Taiwan, R.O.C.
www.analog.com.tw
TEL: (8863)577-2500 FAX:(8863)577-2510
AIC1085
DROPOUT POSITIVE ADJUSTABLE REGULATOR
SPEC DS-1085-01
TYPICAL
PERFORMANCE CHARACTERISTICS
Load Transient Response
Line Transient Response
Output Voltage (mV,
CIN=1µ COUT=10 (Tantalum) OUT=3.3V
Output Voltage
0.05
-0.05 -0.1
-100
COUT=10 (Tantalum) VOUT=3.3V
Input Voltage
Load Current
1.5A
0.1A
Time
Time
Dropout Voltage (VOUT=3.3V)
1.22
Minimum Operating Current Minimum Operating Current (mA)
Minimum Differential Voltage
1.20 1.18 1.16 1.14 1.12 1.10 1.08 1.06
Output Current
Differential Voltage
ANALOG INTEGRATIONS CORPORATION
Industry Road, Science-based IndustrialPark Hsinchu, Taiwan, R.O.C.
www.analog.com.tw
TEL: (8863)577-2500 FAX:(8863)577-2510
AIC1085
DROPOUT POSITIVE ADJUSTABLE REGULATOR
SPEC DS-1085-01
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
2.38 1.27 0.88 5.46 0.58 5.59 6.73
2.28 (TYP.) 9.40 0.51 10.42
ANALOG INTEGRATIONS CORPORATION
Industry Road, Science-based IndustrialPark Hsinchu, Taiwan, R.O.C.
www.analog.com.tw
TEL: (8863)577-2500 FAX:(8863)577-2510
AIC1085
DROPOUT POSITIVE ADJUSTABLE REGULATOR
SPEC DS-1085-01
TO-263 (unit:
SYMBOL
4.06 0.50 1.14 1.14 8.63 9.65
4.83 1.00 1.40 1.40 9.66 10.29
2.54 (TYP.) 14.60 2.28 15.88 2.80 1.40
UNIT:
ANALOG INTEGRATIONS CORPORATION
Industry Road, Science-based IndustrialPark Hsinchu, Taiwan, R.O.C.
www.analog.com.tw
TEL: (8863)577-2500 FAX:(8863)577-2510
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