FAN1585A_05 FAIRCHILD | Alldatasheet

Document overview

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Technical content

Features

  • F ast transient response
  • L ow dropout voltage at up to 5A
  • Load regulation: 0.05% typical
  • T rimmed current limit
  • On-chip thermal limiting
  • P ackages: TO-220, TO-252, TO-263 and TO-263 Centercut

Applications

  • A GTL+ bus supply for FC-PGA
  • L ow voltage logic supply
  • Post regulator for switching supply
  • 3.3V to 1.5V linear regulator
  • 5V to 1.8V linear regulator

Description

The FAN1585A, FAN1585A-1.5, and FAN1585A-1.8 are low dropout three-terminal regulators with 5A output current capability. These devices have been optimized for low volt- age applications including V TT bus termination for FC-PGA, where transient response and minimum input voltage are critical. The FAN1585A-1.5 offers fixed 1.5V with 5A current capabilities for AGTL+ bus V TT termination for FC-PGA. The FAN1585A is ideal for low voltage micro- processor applications requiring a regulated output from 1.5V to 3.6V with an input supply of 5V or less, or for FC-PGA applications with significant trace resistance. Current limit is trimmed to ensure specified output current and controlled short-circuit current. On-chip thermal limit- ing provides protection against any combination of overload and ambient temperature that would create excessive junc- tion temperatures. The FAN1585A series regulators are available in the industry- standard TO-220, TO-252, TO-263 and TO-263 Centercut power packages. Typical Applications VIN = 3.3V 22µF 22µF 22µF 22µF 1.5V at 5A 124Ω 24.9Ω + + VIN ADJ VOUT FAN1585A VIN = 3.3V 1.5V at 5A + + VIN GND VOUT FAN1585A-1.5 VOUT = VREF(1 + R2/R1) + IAdj • R2 FAN1585A 5A Adjustable/Fixed Low Dropout Linear Regulator

FAN1585A PRODUCT SPECIFICATION Pin Assignments *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 more than 40°C/W. Other mounting techniques can provide a thermal resistance lower than 30°C/W. Absolute Maximum Ratings Absolute Maximum Safe Operating Area Parameter Min. Max. Unit VIN 18 V Operating Junction Temperature Range 0 125 °C Storage Temperature Range -65 150 °C Lead Temperature (Soldering, 10 sec.) 300 °C 3-Lead Plastic TO-220 θJC = 3°C/W 3-Lead Plastic TO-252 θJC = 3°C/W ADJ/ GND FRONT VIEW 3-Lead Plastic TO-263 θJC = 3°C/W* IN 123 ADJ/ GND OUT OUT FRONT VIEW FRONT VIEW IN 123 ADJ/ GND FRONT VIEW 3-Lead Plastic TO-263 Center Cut θJC = 3°C/W* IN Tab is Out.Tab is Out. Tab is Out. 123 Tab is VOUT ADJ/ GND OUT IN VIN–VOUT (V) IOUT (Amps) 02468 1 2 10 14

PRODUCT SPECIFICATION FAN1585A

Electrical Characteristics

Tj = 25°C unless otherwise specified. The • denotes specifications which apply over the specified operating temperature range. 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 currrent. Guaranteed maximum output power will not be available over the full input/output voltage range. 3. FAN1585A only. 4. FAN1585A-1.5 only. 5. FAN1585A-1.8 only. Parameter Conditions Min. Typ. Max Units Reference Voltage3 1.5V ≤ (VIN – VOUT) ≤ 5.75V, 10mA ≤ IOUT ≤ 5A

  • 1.225 (-2%) 1.250 1.275 (+2%) V Output Voltage4 3.0V ≤ VIN ≤ 8V 10mA ≤ IOUT ≤ 5A
  • 1.47 1.5 1.53 V Output Voltage5 3.3V ≤ VIN ≤ 8.3V 10mA ≤ IOUT ≤ 5A
  • 1.764 1.8 1.836 V Line Regulation1, 2 (VOUT + 1.5V) ≤ VIN ≤ 12V, IOUT = 10mA
  • 0.005 0.2 % Load Regulation1, 2, 3 (VIN – VOUT) = 3V, 10mA ≤ IOUT ≤ 5A
  • 0.05 0.5 % Dropout Voltage ∆VREF = 1%, IOUT = 5A • 1.150 1.300 V Current Limit (V IN – VOUT) = 2V • 5.1 5.9 A Adjust Pin Current3 • 35 120 µA Adjust Pin Current Change3 1.5V ≤ (VIN – VOUT) ≤ 5.75V, 10mA ≤ IOUT ≤ 5A
  • 0.2 5 µA Minimum Load Current 1.5V ≤ (VIN – VOUT) ≤ 12V • 10 mA Quiescent Current V IN = 5V • 41 3 m A Ripple Rejection f = 120Hz, C OUT = 22µF Tantalum, (VIN – VOUT) = 3V, IOUT = 5A 60 72 dB Thermal Regulation T A = 25°C, 30ms pulse 0.004 0.02 %/W Temperature Stability • 0.5 % Long-Term Stability T A = 125°C, 1000 hrs. 0.03 1.0 % RMS Output Noise (% of VOUT) TA = 25°C, 10Hz ≤ f ≤ 10kHz 0.003 % Thermal Resistance, Junction to Case TO-220, TO-252, TO-263, and TO-263 CC 3 °C/W Thermal Shutdown 150 °C

provides low dropout voltage and fast transient response. current large enough to do any damage. Figure 10. Optional Protection current is the specified minimum load current of 10mA. put voltage setting is required.

PRODUCT SPECIFICATION FAN1585A Mechanical Dimensions 3-Lead TO-263 Package A .160 .190 4.06 4.83 Symbol Inches Min. Max. Min. Max. Millimeters Notes b .020 .036 0.51 0.91 b2 .049 .051 1.25 1.30 c2 .045 .055 1.14 1.40 D .340 .380 8.64 9.65 .380 .405 9.65 10.29 .100 BSC E e L .575 .625 14.61 15.88 .090 .110 2.29 2.79 α L2 — .055 — 1.40 .017 .019 0.43 0.78R 0° 8° 0° 8° Notes: 1. Dimensions are exclusive of mold flash and metal burrs. 2. Standoff-height is measured from lead tip with ref. to Datum -B-. 3. Foot length is measured with ref. to Datum -A- with lead surface (at inner R). 4. Dimensiuon exclusive of dambar protrusion or intrusion. 5. Formed leads to be planar with respect to one another at seating place -C-.

2.54 BSC

E @PKG/ @HEATSINK D A -C- L R (2 PLCS) -A--B- E-PIN b e

FAN1585A PRODUCT SPECIFICATION 10 REV. 1.1.6 7/8/05 Mechanical Dimensions (continued) 3-Lead TO-263 Center Cut Package A .160 .190 4.06 4.83 Symbol Inches Min. Max. Min. Max. Millimeters Notes b .020 .036 0.51 0.91 b2 .049 .051 1.25 1.30 c2 .045 .055 1.14 1.40 D .340 .380 8.64 9.65 .380 .405 9.65 10.29 .100 BSC E e L .575 .625 14.61 15.88 .090 .110 2.29 2.79 .050 .070 1.27 1.78 α — .055 — 1.40 .017 .019 0.43 0.78R 0° 8° 0° 8° Notes: 1. Dimensions are exclusive of mold flash and metal burrs. 2. Standoff-height is measured from lead tip with ref. to Datum -B-. 3. Foot length is measured with ref. to Datum -A- with lead surface (at inner R). 4. Dimensiuon exclusive of dambar protrusion or intrusion. 5. Formed leads to be planar with respect to one another at seating place -C-. E @PKG/ @HEATSINK D A -C- L R (2 PLCS) -A--B- E-PIN b e

PRODUCT SPECIFICATION FAN1585A REV. 1.1.6 7/8/05 11 Mechanical Dimensions (continued) 3-Lead TO-220 Package A .140 .190 3.56 4.83 Symbol Inches Min. Max. Min. Max. Millimeters Notes b .015 .040 .38 1.02 .070 1.78b1 .045 1.14 c1 .014 .022 .36 .56 øP .139 .161 3.53 4.09 D .560 .650 14.22 16.51 .380 .420 9.65 10.67 .090 .110 2.29 2.79 E e e1 .190 .210 4.83 5.33 .045 — 1.14 — .020 .055 .51 1.40 α F H1 .230 .270 5.94 6.87 .060 .115 2.04 2.92 .500 .580 12.70 14.73 L 6.35 BSC.250 BSCL1 .100 .135 2.54 3.43 3° 7° 3° 7° Q b L Q E e E-PIN øP D F A (5X)α Notes: 1. Dimension c1 apply for lead finish.

FAN1585A PRODUCT SPECIFICATION 12 REV. 1.1.6 7/8/05 Mechanical Dimensions (continued) 3-Lead TO-252 Package D GAGE PLANE 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. C) DIMENSIONING AND TOLERANCING PER ASME Y14.5–1994. D) HEAT SINK TOP EDGE COULD BE IN CHAMFERED CORNERS OR EDGE PROTRUSION. E) DIMENSIONS L3, D, E1 & D1 TABLE: OPTION AA OPTION AB 4.32 MIN 3.81 MIN

5.21 MIN

D D1 4.57 MIN 0.51 SEATING PLANE DETAIL A (1.54) 1.78 1.40 0.61 0.48 10°

0.127 MAX

(ROTATED –90° SCALE 12X 1 1 6.73 6.35 1.02 0.84 6.25

6.00 MIN

6.50 MIN

4.80 2.38 2.18 0.58 0.48 0.10 B 10.41 9.40SEE DETAIL A

3.00 MIN

1.40 MIN

LAND PATTERN RECOMMENDATION 1.14 0.78 0.89 0.54 SEE NOTE D (0.59) 2.29 5.46 5.21

4.570.25 A CMM

2.90 2.30 C A B

FAN1585A PRODUCT SPECIFICATION 7/8/05 0.0m 001 Stock#DS30001585  2005 Fairchild Semiconductor Corporation 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, or (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 significant injury to the user. 2. A critical component is 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. www.fairchildsemi.com

Ordering Information

FAN1585AMX TO-263 in Tape and Reel FAN1585AMCX TO-263 Center Cut in Tape and Reel FAN1585AT TO-220 FAN1585AM15X TO-263 in Tape and Reel FAN1585AMC15X TO-263 Center Cut in Tape and Reel FAN1585AT15 TO-220 FAN1585AM18X TO-263 in Tape and Reel FAN1585AMC18X TO-263 Center Cut in Tape and Reel FAN1585AT18 TO-220 FAN1585AD TO-252 FAN1585ADX TO-252 in Tape and Reel