 |
|
| 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: |
| www.fairchildsemi.com FAN1117A 1A Adjustable/Fixed Low Dropout Linear Regulator Features * * * * * * Low dropout voltage Load regulation: 0.05% typical Trimmed current limit On-chip thermal limiting Standard SOT-223, TO-220, and TO-252 packages Three-terminal adjustable or fixed 1.8V, 2.5V, 2.85V, 3.3V, 5V Description The FAN1117A and FAN1117A-1.8, -2.5, -2.85, -3.3 and -5 are low dropout three-terminal regulators with 1A output current capability. These devices have been optimized for low voltage where transient response and minimum input voltage are critical. The 2.85V version is designed specifically to be used in Active Terminators for SCSI bus. Current limit is trimmed to ensure specified output current and controlled short-circuit current. On-chip thermal limiting provides protection against any combination of overload and ambient temperatures that would create excessive junction temperatures. Unlike PNP type regulators where up to 10% of the output current is wasted as quiescent current, the quiescent current of the FAN1117A flows into the load, increasing efficiency. The FAN1117A series regulators are available in the industry-standard SOT-223, TO-220, and TO-252 (DPAK) power packages. Applications * * * * * * Active SCSI terminators High efficiency linear regulators Post regulators for switching supplies Battery chargers 12V to 5V linear regulators Motherboard clock supplies Typical Applications FAN1117A VIN = 12V 10F ADJ R1 124 + VIN VOUT + 22F 9V at 1A VOUT = VREF(1 + R2/R1) + IADJ * R2 R2 768 FAN1117A-5 VIN = 12V 10F GND + VIN VOUT + 22F 5V at 1A REV. 1.1.0 11/7/03 PRODUCT SPECIFICATION FAN1117A Pin Assignments Front View Tab is VOUT Front View Tab is VOUT Front View 3 Tab is VOUT 2 1 IN OUT ADJ/GND ADJ/ OUT GND 4-Lead Plastic SOT-223 JC = 15C/W* IN ADJ/ OUT IN GND 3-Lead Plastic TO-220 JC = 3C/W* 1 2 3 1 2 3 3-Lead Plastic TO-252 JC = 3C/W* *With package soldered to 0.5 square inch copper area over backside ground plane or internal power plane, JA can vary from 30C/W to more than 50C/W. Other mounting techniques may provide better thermal resistance than 30C/W. Absolute Maximum Ratings Parameter VIN (VIN - VOUT) * IOUT Operating Junction Temperature Range Storage Temperature Range Lead Temperature (Soldering, 10 sec.) 0 -65 Min. Max. 18 See Figure 1 125 150 300 C C C Unit V 1.2 1.0 IOUT (A) 0.8 0.6 0.4 0.2 0 0 2 4 6 8 10 VIN - VOUT (V) 12 14 16 18 20 Figure 1. Absolute Maximum Safe Operating Area 2 REV. 1.1.0 11/7/03 FAN1117A PRODUCT SPECIFICATION Electrical Characteristics Operating Conditions: VIN 7V, TJ = 25C unless otherwise specified. The * denotes specifications which apply over the specified operating temperature range. Parameter Reference Voltage3 Conditions 1.5V (VIN - VOUT) 7V, 10mA IOUT 1A 10mA IOUT 1A FAN1117A-1.8, 3.3V VIN 8.8V FAN1117A-2.5, 4V VIN 9.5V FAN1117A-2.85, 4.35V VIN 9.85V FAN1117A-3.3, 4.8V VIN 10.3V FAN1117A-5, 6.5V VIN 12V (VOUT + 1.5V) VIN 12V, IOUT = 10mA (VIN - VOUT) = 2V, 10mA IOUT 1A VREF = 1%, IOUT = 1A (VIN - VOUT) = 2V Change3,4 1.5V (VIN - VOUT) 7V, 10mA IOUT 1A 1.5V (VIN - VOUT) 15V VIN = VOUT + 1.25V f = 120Hz, COUT = 22F Tantalum, (VIN - VOUT) = 3V, IOUT = 1A TA = 25C, 30ms pulse * TA = 125C, 1000hrs. TA = 25C, 10Hz f 10kHz * Min. 1.225 (-2%) 1.764 2.450 2.793 3.234 4.900 Typ. 1.250 Max. 1.275 (+2%) 1.836 2.550 2.907 3.366 5.100 0.2 0.5 1.200 120 5 Units V Output Voltage4 * * * * * * * * * * * * * 1.8 2.5 2.85 3.3 5.0 0.005 0.05 1.100 V V V V V % % V A A A mA Line Regulation1,2 Load Regulation1,2 Dropout Voltage Current Limit Adjust Pin Current3 Adjust Pin Current 1.1 1.5 35 0.2 Minimum Load Current Quiescent Current Ripple Rejection Thermal Regulation Temperature Stability Long-Term Stability RMS Output Noise (% of VOUT) 10 4 60 72 0.004 0.5 0.03 0.003 15 3 155 10 1.0 0.02 13 mA dB %/W % % % C/W C/W C C Thermal Resistance, Junction SOT-223 to Case TO-252, TO-220 Thermal Shutdown Thermal Shutdown Hysteresis Junction Temperature Notes: 1. See thermal regulation specifications for changes in output voltage due to heating effects. Load and line regulation are measured at a constant junction temperature by low duty cycle pulse testing. 2. Line and load regulation are guaranteed up to the maximum power dissipation (18W). Power dissipation is determined by input/output differential and the output current. Guaranteed maximum output power will not be available over the full input/ output voltage range. 3. FAN1117A only. 4. Output current must be limited to meet the absolute maximum ratings of the part. REV. 1.1.0 11/7/03 3 PRODUCT SPECIFICATION FAN1117A Typical Performance Characteristics DROPOUT VOLTAGE DEVIATION (%) 1.5 1.4 DROPOUT VOLTAGE (V) 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0 0 0.2 0.4 0.6 0.8 1.0 TJ = 25C TJ = 125C TJ = 0C 0.10 0.05 0 -0.05 -0.10 -0.15 -0.20 -75 -50 -25 0 I = 1A 25 50 75 100 125 150 175 OUTPUT CURRENT (A) JUNCTION TEMPERATURE (C) Figure 2. Dropout Voltage vs. Output Current 1.260 1.255 REFERENCE VOLTAGE (V) 1.250 1.245 1.240 1.235 1.230 1.225 1.220 1.215 1.210 -75 -50 -25 0 25 50 75 100 125 150 175 REFERENCE VOLTAGE (V) Figure 3. Load Regulation vs. Temperature 3.70 3.65 3.60 3.55 3.50 3.45 3.40 3.35 3.30 3.25 VOUT = 3.3V VOUT SET WITH 1% RESISTORS VOUT = 3.6V1 Note: 1. FAN1117A Only 3.20 -75 -50 -25 0 25 50 75 100 125 150 175 JUNCTION TEMPERATURE (C) JUNCTION TEMPERATURE (C) Figure 4. Reference Voltage vs. Temperature 5 MINIMUM LOAD CURRENT (mA) ADJUST PIN CURRENT (A) Figure 5. Output Voltage vs. Temperature 100 90 Note: 1. FAN1117A Only 4 80 70 60 50 40 30 20 10 3 2 1 0 -75 -50 -25 0 25 50 75 100 125 150 175 0 -75 -50 -25 0 25 50 75 100 125 150 175 JUNCTION TEMPERATURE (C) JUNCTION TEMPERATURE (C) Figure 6. Minimum Load Current vs. Temperature Figure 7. Adjust Pin Current vs. Temperature 4 REV. 1.1.0 11/7/03 FAN1117A PRODUCT SPECIFICATION Typical Performance Characteristics (continued) 2.0 SHORT-CIRCUIT CURRENT (A) 90 80 RIPPLE REJECTION (dB) 1.75 70 60 50 40 30 20 10 1.0 -75 -50 -25 0 25 50 75 100 125 150 175 0 10 (VIN - VOUT) = 3V 0.5 < VRIPPLE < 2V IOUT = 1A 100 1K 10K 100K 1.5 1.25 JUNCTION TEMPERATURE (C) FREQUENCY (Hz) Figure 8. Short-Circuit Current vs. Temperature Figure 9. Ripple Rejection vs. Frequency 10 OUTPUT CAP'S ESR (m) 5000 VIN = 12V 4000 10ma < IOUT < IMAX 7.5 POWER (W) TO-252, TO-220 5 3000 VIN = 5V 2000 Instability region Region of Stability (SOA) 2.5 SOT-223 1000 0 25 0 45 65 85 105 125 0 1 2 3 4 5 6 7 8 9 10 CASE TEMPERATURE (C) VOUT (V) Figure 10. Maximum Power Dissipation Figure 11. Stability Region (SOA) vs. ESR of the COUT REV. 1.1.0 11/7/03 5 PRODUCT SPECIFICATION FAN1117A Mechanical Dimensions 4-Lead SOT-223 Package Symbol A A1 B c D E e F H I J K L M N Inches Min. -- -- .025 -- .248 .130 .115 .033 .264 .012 -- 10 .0008 10 .010 Max. .071 .181 .033 .090 .264 .148 .124 .041 .287 -- 10 16 .0040 16 .014 Millimeters Min. -- -- .640 -- 6.30 3.30 2.95 .840 6.71 .310 -- 10 .0203 10 .250 Max. 1.80 4.80 .840 2.29 6.71 3.71 3.15 1.04 7.29 -- 10 16 .1018 16 .360 Notes D e K A H E B A1 c F J M I L N 6 REV. 1.1.0 11/7/03 FAN1117A PRODUCT SPECIFICATION Mechanical Dimensions (continued) 3-Lead TO-220 Package Inches Min. A b b1 c1 oP D E e e1 e3 F H1 J1 L L1 Q Max. Millimeters Min. Max. Symbol Notes .140 .190 .015 .040 .045 .070 .014 .022 .139 .161 .560 .650 .380 .420 .090 .110 .190 .210 .045 -- .020 .055 .230 .270 .080 .115 .500 .580 .250 BSC .100 .135 3 7 3.56 4.83 .38 1.02 1.14 1.78 .36 .56 3.53 4.09 14.22 16.51 9.65 10.67 2.29 2.79 4.83 5.33 1.14 -- .51 1.40 5.94 6.87 2.04 2.92 12.70 14.73 6.35 BSC 2.54 3.43 3 7 Notes: 1. Dimension c1 apply for lead finish. H1 L e3 e e1 E b1 Q b L1 E-PIN oP (5X) c1 J1 D A F REV. 1.1.0 11/7/03 7 PRODUCT SPECIFICATION FAN1117A Mechanical Dimensions (continued) 3-Lead TO-252 Package 6.73 6.35 5.46 5.21 A 6.00 MIN L3 4 6.50 MIN D 1.02 0.84 C 1 2 3 1 1.14 0.78 2.29 4.57 3 6.25 3.00 MIN (0.59) 0.89 0.54 0.25 M A M C 1.40 MIN 4.80 2.30 LAND PATTERN RECOMMENDATION B 2.38 2.18 SEE NOTE D E1 4 0.58 0.48 D1 10.41 9.40 SEE DETAIL A 2 3 1 0.10 B GAGE PLANE 0.61 0.48 10 0 0.51 NOTES: UNLESS OTHERWISE SPECIFIED A) ALL DIMENSIONS ARE IN MILLIMETERS. B) THIS PACKAGE CONFORMS TO JEDEC, TO-252, ISSUE C. VARIATION AA & AB, DATED NOV. 1999. (1.54) C) D) DIMENSIONING AND TOLERANCING PER ASME Y14.5-1994. HEAT SINK TOP EDGE COULD BE IN CHAMFERED CORNERS OR EDGE PROTRUSION. DIMENSIONS L3, D, E1 & D1 TABLE: OPTION AA OPTION AB L3 0.89 - 1.27 1.52 - 2.03 D 5.97 - 6.22 5.33 - 5.59 E1 4.32 MIN 3.81 MIN D1 5.21 MIN 4.57 MIN 1.78 1.40 2.90 0.127 MAX SEATING PLANE E) DETAIL A (ROTATED -90 SCALE 12X 8 REV. 1.1.0 11/7/03 PRODUCT SPECIFICATION FAN1117A Ordering Information Product Number FAN1117ADX FAN1117ASX FAN1117AD18X FAN1117AS18X FAN1117AD25X FAN1117AS25X FAN1117AD285 FAN1117AS285 FAN1117AD33X FAN1117AS33X FAN1117AT FAN1117AT18 FAN1117AT25 FAN1117AT33 FAN1117AD5X FAN1117AS5X Package TO-252 in tape and reel SOT-223 in tape and reel TO-252 in tape and reel SOT-223 in tape and reel TO-252 in tape and reel SOT-223 in tape and reel TO-252 SOT-223 TO-252 in tape and reel SOT-223 in tape and reel TO-220 TO-220 TO-220 TO-220 TO-252 in tape and reel SOT-223 in tape and reel DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. www.fairchildsemi.com 11/7/03 0.0m 007 Stock#DS30001117A 2003 Fairchild Semiconductor Corporation 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. |
Price & Availability of FAN1117A
 |
|
|
|
|
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] |