FAN1616ASX

www.fairchildsemi.com FAN1616A 0.5A Adjustable/Fixed Low Dropout Linear Regulator Features • • • • • • • Low dropout voltage Load regulation: 0.05% typical Current limit On-chip thermal limiting Standard SOT-223 and TO-252 packages Three-terminal adjustable or fixed 1.8V, 2.5V, 3.3V or 5V Specified from -40°C to +125°C Description The FAN1616A, FAN1616A-1.8, -2.5, -3.3 and -5 are low dropout three-terminal regulators with 0.5A output current capability. These devices have been optimized for applications where transient response and minimum dropout voltage are critical. The 5V version is designed also to be used in USB Hub and Motherboard applications. On-chip thermal limiting provides protection against any combination of overload and ambient temperature that would create excessive junction temperatures. Unlike PNP type regulators where up to 10% of the output current is wasted as quiescent current, the bias current of the FAN1616A flows into the load, increasing efficiency. The FAN1616A series regulators are available in the industry-standard SOT-223 and TO-252 power packages. Applications • USB Controlled Power Supply • High efficiency linear regulators for Mixed Voltage Logic, ASIC, FPGA based systems • Post regulators for switching supplies • Battery chargers • 12V to 5V, 3.3V, 2.5V, 1.8V, or adj linear regulators • Motherboard clock supplies • SDRAM Module supplies Typical Applications FAN1616A VIN = 12V 10µF + VIN ADJ VOUT R1 124Ω + 9V at 0.5A 22µF VOUT = VREF(1 + R2/R1) + IAdj • R2 R2 768Ω FAN1616A-3.3 VIN = 9V 10µF + VIN GND VOUT + 3.3V at 0.5A 22µF REV. 1.0.5 3/1/02 PRODUCT SPECIFICATION FAN1616A Pin Assignments FAN1616AS (Variable) FAN1616AS-X (Fixed) Front View 3 Tab is OUT 2 1 IN OUT Tab is OUT ADJ/GND 1 4-Lead Plastic SOT-223 ΘJC = 15°C/W* 2 3 FAN1616AD (Variable) FAN1616AD-X (Fixed) Front View ADJ/ GND IN 3-Lead Plastic TO-252 ΘJC = 3°C/W* *With package soldered to 0.5 square inch copper area over backside ground plane or internal power plane, ΘJA can vary from 30°C/W to >50°C/W. Other mounting techniques may provide better power dissipation than 30°C/W. Absolute Maximum Ratings Parameter VIN (VIN–VOUT) * IOUT Operating Junction Temperature Range Storage Temperature Range Lead Temperature (Soldering, 10 sec.) -40 -65 Min. Max. 18 See Figure 1 125 150 300 °C °C °C Unit V 0.6 0.5 IOUT (A) 0.4 0.3 0.2 0.1 0 0 2 4 6 VIN – VOUT (V) 8 10 12 Figure 1. Absolute Maximum Safe Operating Area 2 REV. 1.0.5 3/1/02 FAN1616A PRODUCT SPECIFICATION Electrical Characteristics Operating Conditions: VIN ≤ 12V, TJ = 25°C unless otherwise specified. The • denotes specifications which apply over the specified operating temperature range. Parameter Reference Voltage3 Conditions 1.5V ≤ (VIN - VOUT) ≤ 5.75V, 10mA ≤ IOUT ≤ 0.5A 10mA ≤ IOUT ≤ 0.5A FAN1616A-1.8, 3.3V ≤ VIN ≤ 12V FAN1616A-2.5, 4.0V ≤ VIN ≤ 12V FAN1616A-3.3, 4.5V ≤ VIN ≤ 12V FAN1616A-5, 6.2V ≤ VIN ≤ 12V (VOUT + 1.5V) ≤ VIN ≤ 12V, IOUT = 10mA (VIN – VOUT) = 2V, 10mA ≤ IOUT ≤ 0.5A ∆VREF = 1%, IOUT = 0.5A • Min. 1.225 (-2%) 1.764 2.450 3.234 4.900 Typ. 1.250 Max. 1.275 (+2%) 1.836 2.550 3.366 5.100 0.2 0.5 1.200 120 5 Units V Output Voltage4 • • • • • • • • • • • 1.800 2.500 3.300 5.000 0.005 0.05 1.000 35 0.2 V V V V % % V µA µA mA Line Regulation1,2 Load Regulation1,2,3 Current3 Dropout Voltage Adjust Pin Adjust Pin Current Change3, 4 1.5V ≤ (VIN – VOUT) ≤ 12V, 10mA ≤ IOUT ≤ 0.5A Minimum Load Current Quiescent Current Ripple Rejection Thermal Regulation Temperature Stability Long-Term Stability RMS Output Noise (% of VOUT) Thermal Resistance, Juncation to Case Thermal Shutdown TA = 125°C, 1000hrs. TA = 25°C, 10Hz ≤ f ≤ 10kHz SOT-223 TO-252 1.5V ≤ (VIN – VOUT) ≤ 12V VIN = VOUT + 1.25V f = 120Hz, COUT = 22µF Tantalum, (VIN – VOUT) = 3V, IOUT = 0.5A TA = 25°C, 30ms pulse 10 4 60 72 0.004 0.02 1.0 13 mA dB %/W % % % °C/W °C/W °C • 0.5 0.03 0.003 15 3 150 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. 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. FAN1616A only. 4. Output current must be limited to meet the absolute maximum ratings of the part. REV. 1.0.5 3/1/02 3 PRODUCT SPECIFICATION FAN1616A Typical Performance Characteristics 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 = 0°C TJ = 25°C TJ = 125°C 0.10 OUTPUT VOLTAGE DEVIATION (%) 0.05 0 -0.05 -0.10 -0.15 -0.20 -75 -50 -25 0 ∆I = 0.5A 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) OUTPUT 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 Note: 1. FAN1616A Only 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 3.20 -75 -50 -25 0 Note: 1. FAN1616A Only 25 50 75 100 125 150 175 VOUT = 3.3V VOUT SET WITH 1% RESISTORS VOUT = 3.6V1 JUNCTION TEMPERATURE (°C) JUNCTION TEMPERATURE (°C) Figure 4. Reference Voltage vs. Temperature Figure 5. Output Voltage vs. Temperature 5 MINIMUM LOAD CURRENT (mA) ADJUST PIN CURRENT (µA) 100 90 Note: 1. FAN1616A 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. 1.0.5 3/1/02 FAN1616A PRODUCT SPECIFICATION Typical Performance Characteristics (continued) 90 80 RIPPLE REJECTION (dB) 70 POWER (W) 60 50 40 30 20 10 0 10 (VIN - VOUT) ≤ 3V 0.5 ≤ VRIPPLE ≤ 2V IOUT = 0.5A 100 1K 10K 100K 1 3 4 TO-252 2 SOT-223 0 50 60 70 80 90 100 110 120 130 140 150 CASE TEMPERATURE (°C) FREQUENCY (Hz) Figure 8. Ripple Rejection vs. Frequency Figure 9. Maximum Power Dissipation REV. 1.0.5 3/1/02 5 PRODUCT SPECIFICATION FAN1616A Mechanical Dimensions 3-Lead TO-252 Package Symbol A b b2 b3 c c2 D E e H L L1 L3 L4 Inches Min. .086 .025 .030 .205 .018 .018 Max. .094 .035 .045 .215 .024 .023 Millimeters Min. 2.19 0.64 0.76 5.21 0.46 0.46 Max. 2.39 0.89 1.14 5.46 0.61 0.58 4 Notes: Notes 1. 2. 3. 4. 5. 1 1 6. Dimensions are exclusive of mold flash, metal burrs or interlead protrusion. Stand off-height is measured from lead tip with ref. to Datum -B-. Foot length is measured with ref. to Datum -A- with lead surface. Thermal pad contour optional within dimension b3 and L3. Formed leads to be planar with respect to one another at seating place -C-. Dimensions and tolerances per ASME Y14.5M-1994. .210 .245 .250 .265 .090 BSC .370 .410 .055 .070 .108 REF .035 .025 .080 .040 5.33 6.22 6.35 6.73 2.29 BSC 9.40 10.41 1.40 1.78 2.74 REF 0.89 0.64 2.03 1.02 3 4 E @PKG/ @HEATSINK b3 L3 c2 D H b2 E-PIN L4 L1 L b e α = 0° – 10° -A- -B- A -C- 6 REV. 1.0.5 3/1/02 FAN1616A PRODUCT SPECIFICATION Mechanical Dimensions 4-Lead SOT-223 Package Inches Min. A A1 B c D E e F H I J K L M N — — .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 Symbol Notes D e K A H E B A1 c F J M I L N REV. 1.0.5 3/1/02 7 PRODUCT SPECIFICATION FAN1616A Ordering Information Product Number FAN1616ADX FAN1616ASX FAN1616AD18X FAN1616AS18X FAN1616AD25X FAN1616AS25X FAN1616AD33X FAN1616AS33X FAN1616AD5X FAN1616AS5X 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 in tape and reel SOT-223 in tape and reel 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 3/1/02 0.0m 006 Stock#DS30001616  2002 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.