 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| AIC1117A 1A Low Dropout Positive Adjustable Regulator n FEATURES l l l l l l n DESCRIPTION The AIC1117A is a low dropout three terminal regulator with 1A output current capability. The output voltage is adjustable with the use of a resistor divider or fixed 2.85V, 3.3V, 5V. Dropout is guaranteed at a maximum of 1.5V at maximum output current. Its low dropout voltage and fast transient response make it ideal for low voltage microprocessor applications. Internal current and thermal limiting provides protection against any overload condition that would create excessive junction temperatures. Dropout Voltage 1.3V at 1A Output Current. Fast Transient Response. Line Regulation typically at 0.015%. Load Regulation typically at 0.1%. Internal Thermal and Current Limiting. Adjustable Output Voltage or Fixed 2.85V, 3.3V, 5V. Standard 3-Pin Power Packages. l n APPLICATIONS l l l l l Post Regulator for Switching Supply. Active SCSI Termination. Battery Chargers. Constant-Current Regulators. Motherboard Clock Supplies. n TYPICAL APPLICATION CIRCUIT VIN 5V C1 + 10F 3 AIC1117A 1 ADJ 2 VREF VREF=VOUT - VADJ=1.25V (typ.) VOUT 3.3V VOUT=VREF x (1+RF2/RF1)+ IADJ x RF2 IADJ=55A (typ.) (1) C1 needed if device is far away from filter capacitors. (2) C2 required for stability. RF1 125 1% + C2 RF2 10F 205 1% Adjustable Voltage Regulator VIN 5V C1 + 10F AIC1117A-33 VOUT 3.3V + C2 10F GND Fixed Voltage Regulator Analog Integrations Corporation DS-1117A-00 May 21, 01 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC TEL: 886-3-5772500 FAX: 886-3-5772510 www.analog.com.tw 1 AIC1117A n ORDERING INFORMATION AIC1117A-XXCX PACKAGING TYPE E: TO-252 M: TO-263 T: TO-220 Y: SOT-223 ORDER NUMBER AIC1117ACE (TO-252) PIN CONFIGURATION FRONT VIEW 1: ADJ 2: VOUT (TAB) 3: VIN 1 2 3 DEFAULT: 28: 33: 50: ADJ. 2.85V 3.3V 5.0V AIC1117ACM (TO-263) FRONT VIEW 1: ADJ 2: VOUT (TAB) 3: VIN 1 2 3 AIC1117ACT (TO-220) FRONT VIEW 1: ADJ 2: VOUT (TAB) 3: VIN 1 2 3 AIC1117ACY (SOT-223) FRONT VIEW 1: ADJ 2: VOUT (TAB) 3: VIN 1 2 3 2 AIC1117A n ABSOLUTE MAXIMUM RATINS VIN pin to ADJ/GND pin .............................. ... .......... ... .......... ... ... ... ... ...................... 7V ..................... ... ... ...................... 0C ~ 125C Operating Junction Temperature Range Power Dissipation ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .Internally Limited Thermal Resistance (Junction to Case) TO-220 ... ... ... ........... ... ...... ... ... ... ... 3C /W TO-263 ... ....... ... ....... ... ... ... ... ... ... ... . 3C /W SOT-223 TO-252 Thermal Resistance (Junction to Ambient) TO-220 (Assume no ambient airflow, no heatsink) TO-263 SOT-223 TO-252 Storage Temperature Range ... ....... ... ..... ... ... ..... ... ... ..15C /W ... ... ... ... ... ... ... ... ... ... ... ..12.5C /W ... ....... ... ....... ... ... ... ... ... ... 50C/W ... ........ ... ........ ... ... ... ... ... ..60C/W ... ... ... ... ... ... ... ... ... ... ... ..155C/W ... ... ... ... ... ... ... ... ... ... ... ..100C/W .................................. ... ... ... ................. - 65C ~ 150C ........................ ... ... ............... ... ... ...... .......260C Lead Temperature (Soldering) 10 sec. n ELECTRICAL CHARACTERISTICS specified) PARAMETER Reference Voltage (VIN=5V, T J=25C, IO=10mA, Unless otherwise TEST CONDITIONS TJ =25C 0CTJ 125C 2.65VVIN7V 10mAIO1A AIC1117A-28, VIN=5V AIC1117A-33, VIN=5V AIC1117A-50, VIN=7V MIN. 1.238 1.225 TYP. 1.25 1.25 MAX. 1.262 1.275 UNIT V 2.82 3.26 4.95 2.85 3.30 5.00 2.88 3.33 5.05 V Output Voltage AIC1117A 0CTJ 125C 2.65VVIN7V 10mAIO1A 2.65VIN 7V 0.98V N VN 1.02V N Line Regulation TJ =25C 0CTJ 125C 0.015 0.035 0.2 0.2 %VOUT 3 AIC1117A n ELECTRICAL CHARACTERISTICS PARAMETER Load Regulation 0CTJ 125C VOUT, VREF =1% Dropout Voltage IO=1A 0CTJ 125C Current Limit 0CTJ 125C 2.65VIN 7V Adjusted Pin Current (IADJ) 10mAIO1A 0CTJ 125C 2.65VIN 7V Adjusted Pin Current Change (IADJ) 10mAIO1A 0CTJ 125C IO=0.5A Temperature Stability Minimum Load Current ( Adj. ) Quiescent Current ( Fixed Version) RMS Output Noise (% of VOUT) Ripple Rejection Ratio 0CTJ 125C 0CTJ 125C 0CTJ 125C 10Hzf10KHz (Continued) MIN. TYP. 0.1 0.2 TEST CONDITIONS TJ =25C, IO=10mA ~1A MAX. 0.3 0.4 UNIT %VOUT 1.3 1.5 V 1 A 55 120 A 0.2 5 A 0.5 5 10 0.003 60 72 10 14 % VOUT mA mA %VOUT dB 120Hz input ripple COUT=25F 4 AIC1117A n TYPICAL 0.1 PERFORMANCE CHARACTERISTICS Load Transient Response Line Transient Response Output Voltage (mV, AC) V IN=5V C IN=1 F C OUT=10F (Tantalum) V OUT=3.3V 50 0 Output Voltage (V, AC) 0.05 0 -0.05 -0.1 --50 --100 0.4A Input Voltage (V) COUT =10 F (Tantalum) VOUT=3.3V Load Current 7.0 0.1A 6.0 0 40 80 120 160 200 0 10 20 30 40 50 Time (S) Time (S) Minimum Differential Voltage (V) 1.26 Dropout Voltage (VOUT=3.3V) Minimum Operating Current (mA) 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0 1 Minimum Operating Current 1.24 1.22 1.20 1.18 1.16 0 200 400 600 800 1000 2 3 4 5 Output Current (mA) Differential Voltage (V) Minimum Load Current (Adjustable Version) 5 Minimum Load Current (mA) T J=125 C 4 3 T J=125 C TJ=0C 2 1 0 1 2 3 4 5 6 7 8 9 Input/Output Differential (V) 5 AIC1117A n BLOCK DIAGRAM VIN Current Amp. + VREF + 1.25V - GM Thermal Limit 55 A Current Limit VOUT For fixed voltage device ADJ GND n PIN DESCRIPTIONS ADJ PIN (GND PIN VOUT PIN VIN PIN Providing VREF=1.25V (typ.) for adjustable VOUT. VREF=VOUT-V ADJ and IADJ=55A (typ.) Power ground.) Adjustable output voltage. Power Input. 6 AIC1117A n PHYSICAL DIMENSIONS l TO-220 (unit: mm) A E F 3.810.27 SYMBOL A D E MIN 3.56 14.23 9.66 2.29 0.50 0.51 2.04 12.70 MAX 4.82 16.51 10.66 2.79 1.15 1.10 1.39 2.92 14.73 D e e1 e2 F J1 L L e1 J1 e e2 l TO-252 (unit: mm) E b2 C1 A SYMBOL A A1 b MIN 2.19 1.02 0.64 5.21 0.46 5.33 6.35 2.28 (TYP.) 9.40 0.51 MAX 2.38 1.27 0.88 5.46 0.58 5.59 6.73 D H b2 C1 D E L e H b e A1 10.42 - L 7 AIC1117A l SOT-223 D 1.80 MAX B1 13 3 SYMBOL A1 B B1 E H e A1 MIN 0.02 0.60 2.90 0.24 6.30 3.30 MAX 0.12 0.80 3.15 0.35 6.80 3.70 C D E e C B 3 (PLCS) 13 3 2.30 (TYP.) 6.70 7.30 H 0.91 MIN 13 3 0 ~ 10 l SOT-223 Marking Part No. AIC1117ACY AIC1117A-28CY AIC1117A-33CY AIC1117A-50CY Marking BS17 BS28 BS33 BS50 l TO-263 (unit: mm) E A SYMBOL A C2 MIN 4.06 0.50 1.14 1.14 8.63 9.65 14.60 2.28 - MAX 4.83 1.00 1.40 0.7 1.40 9.66 10.29 15.88 2.80 1.40 L2 b b2 C L D L1 c2 D E e e C 2.54 (TYP.) b2 b L L1 L2 8 |
Price & Availability of AIC1117A
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |