APL1581-15KA Anpec Electronics Corporation, APL1581-15KA Datasheet

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APL1581-15KA

Manufacturer Part Number
APL1581-15KA
Description
Dual Input Low Dropout Regulator
Manufacturer
Anpec Electronics Corporation
Datasheet
APL1581
Features
Applications
Pin Configuration
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise
customers to obtain the latest version of relevant information to verify before placing orders.
Copyright
Rev. B.6 - Feb., 2009
TAB is VOUT
TAB is VOUT
(RoHS Compliant)
Adjustable or Fixed Output
520mV typ. Dropout at 5A in Dual Power
Voltage Mode
Remote Sense Pin Available
2% Accuracy Over Temperature Range
Build-In Over-Temperature Protection
Build-In Current Limit
5 Pin TO-263 and TO-252, SOP-8P
Packages
Lead Free and Green Devices Available
Microprocessor Supplies
Chip Set Supplies
VGA Card Power
LCD Monitor Power
Front View of TO-252-5
ANPEC Electronics Corp.
Front View of TO-263-5
5
4
3
2
1
5
4
3
2
1
VIN
VCNTL
VOUT
ADJ(or GND)
VSENSE
VIN
VCNTL
VOUT
ADJ (or GND)
VSENSE
DUAL INPUT LOW DROPOUT REGULATOR
1
General Description
The APL1581 series of high performance positive volt-
age regulators are designed for use in applications re-
quiring very low dropout voltage at 5Amp.
The APL1581 can provide a output voltage at the range of
1.25V to 2.55V where both 5V and 3.3V voltage supplies
are available.
The superior dropout characteristics result in reducing
heat dissipation compared to regular LDOs. The APL1581
also provides excellent regulation over line, load, and tem-
perature variations.
Current limit is trimmed to ensure specified output cur-
rent and controlled short-circuit current. On-chip thermal
limiting provides protection against any combination of
overload tha t would create exc ess i ve junc tion
temperature.
The APL1581 is available in both the through-hole and
surface mount versions of the industry standard 5-Pin
TO-263 and TO-252, SOP-8P power packages.
Pin 5~8 must be connected together by a shortest
wide track or plane.
NC = No internal connection
ADJ (or GND)
= Thermal Pad
(connected to VOUT plane for better heat
VSENSE
dissipation)
VCNTL
VIN
SOP-8P (Top View)
1
2
3
4
8
7
6
5
www.anpec.com.tw
VOUT
VOUT
VOUT
VOUT

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APL1581-15KA Summary of contents

Page 1

... The APL1581 series of high performance positive volt- age regulators are designed for use in applications re- quiring very low dropout voltage at 5Amp. The APL1581 can provide a output voltage at the range of 1.25V to 2.55V where both 5V and 3.3V voltage supplies are available. The superior dropout characteristics result in reducing heat dissipation compared to regular LDOs ...

Page 2

... APL1581-15 G5/U5 : APL1581 XXXXX APL1581 APL1581- XXXXX Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which are fully compliant with RoHS. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J-STD-020C for MSL classification at lead-free peak reflow temperature. ANPEC defines “Green” to mean lead-free (RoHS compliant) and halogen free ( does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by weight) ...

Page 3

... O V =2.75V, V =0V APL1581 CNTL ADJ V =3V APL1581-15 CNTL V =3.3V APL1581-18 CNTL V =4V APL1581-25 CNTL V -V =1.5V CNTL OUT IN (Note7) APL1581 V =5V, V =3.3V, V CNTL IN 30ms Pulse V =1V at 120Hz, I RIPPLE PP APL1581 V =5V, V =5V, V CNTL IN ADJ APL1581-15 V =5.25V, V =5.25V CNTL IN APL1581-18 V =5.55V, V =5.55V ...

Page 4

... V -V CNTL OUT IN I =5A O APL1581-15 V =3V, V =2.3V CNTL IN APL1581-18 V =3.3V, V =2.6V CNTL IN APL1581-25 V =4V, V =3.3V CNTL IN APL1581 V =2.75V, V =2.05V , V CNTL IN and and 70°C. Typical values refer OUT A APL1581 Min. Typ. =0.8V, OUT - =0V ADJ required to maintain 1% V OUT OUT regulation ...

Page 5

... APL1581 Typical Operating Characteristics Reference Voltage vs. Junction Temperature 1.275 1.270 1.265 1.260 1.255 1.250 1.245 1.240 1.235 1.230 1.225 -50 - Junction Temperature (°C) Minimum Load Current vs. Junction Temperature 1.2 1 CNTL 0.8 V 0.6 CNTL 0.4 0.2 0.0 -50 - Junction Temperature (°C) Short-Circuit Current vs. Junction Temperature ...

Page 6

... APL1581 Typical Operating Characteristics (Cont.) Control Pin Current vs. Output Current V -V =0.6V IN OUT 160 140 120 100 =- 0.5 1 1.5 2 2.5 Output Current (A) Control Pin Current vs. Output Current V -V =1.0V IN OUT = = ...

Page 7

... APL1581 Pin Description PIN NAME I/O Positive side of the reference voltage, which allows remote sensing to obtain excellent load VSENSE I regulation. Negative side of the reference voltage, which allows to use resistor divider to set an expect ADJ O output voltage. A small bypass capacitor can be connected from this pin to ground to improve PSRR performance ...

Page 8

... C C CNTL 100 ADJ to 125 to satisfy the minimum load current requirement. VIN VOUT APL1581-25 VCNTL VSENSE GND C C CNTL 100 F VIN APL1581 (Adj.) VCNTL VSENSE ADJ CNTL 100 OUT +2.5V/5A R1 REF 120 C OUT 470 F R2 120 ...

Page 9

... V CNTL Grounding and Output Sensing The APL1581 allows true Kelvin sensing for both the high and low side of the load. Figure 2 shows the device con- nected to take advantage of the remote sense feature. The SENSE pin and the top of the resistor divider are connected to the top of the load ...

Page 10

... Copyright ANPEC Electronics Corp. Rev. B.6 - Feb., 2009 The output capacitors are also used to reduce the slew rate of load current and help the APL1581 to minimize variations of the output voltage, improving transient V OUT response. For this purpose, the low-ESR capacitors are recommended ...

Page 11

... APL1581 Application Information (Cont.) Layout and Thermal Consideration (Cont.) Top layer VOUT plane for Heat Dissipation (Larger area is better Vias Soldering area (140mil x 110mil for bottom pad CNTL Figure 3. Recommended SOP-8P Layout Copyright ANPEC Electronics Corp. ...

Page 12

... APL1581 Package Information TO-263 MIN 4.06 0. 0.51 0. 1.14 D 8.38 6. 6.22 e 14. Copyright ANPEC Electronics Corp. Rev. B.6 - Feb., 2009 SEE VIEW A GAUGE PLANE TO-263-5 MILLIMETERS MAX. 4.83 0.25 0.99 0.74 1.65 9.65 9.00 11.43 9.00 1.70 BSC 1.70 BSC 15.88 2.79 1. Note : Follow from JEDEC TO-263 BB. ...

Page 13

... APL1581 Package Information TO-252 MIN 2. 0.50 b3 4.32 c 0.46 c2 0.46 D 5.33 4. 6. 1. Copyright ANPEC Electronics Corp. Rev. B.6 - Feb., 2009 SEE VIEW A GAUGE PLANE L TO-252-5 MILLIMETERS MAX. 2.39 0.13 0.89 5.46 0.61 0.89 6.22 6.00 6.73 6.00 1.27 BSC 10.41 1.78 2. SEATING PLANE VIEW A INCHES MIN. MAX. 0.086 ...

Page 14

... APL1581 Package Information SOP- THERMAL PAD MIN 0.00 A2 1.25 b 0.31 c 0.17 D 4.80 D1 2.25 E 5.80 E1 3.80 E2 2. 0.40 0 Note : 1. Follow JEDEC MS-012 BA. Copyright ANPEC Electronics Corp. Rev. B.6 - Feb., 2009 VIEW A SOP-8P MILLIMETERS MAX. 1.60 0.15 0.51 0.25 5.00 3.50 6.20 4.00 3.00 1.27 BSC 0.50 1. Dimension "D" does not include mold flash, protrusions or gate burrs ...

Page 15

... APL1581 Carrier Tape & Reel Dimensions K0 SECTION A-A Application A H 330.0± 2.00 50 MIN. TO-263 4.0± 0.10 16.0± 0.10 2.0± 0.10 Application A H 330.0± 2.00 50 MIN. TO-252 4.0± 0.10 8.0± 0.10 Application A H 330.0± 2.00 50 MIN. SOP- 4.0± 0.10 8.0± 0.10 Copyright ANPEC Electronics Corp. Rev. B.6 - Feb., 2009 ...

Page 16

... APL1581 Devices Per Unit Package Type TO-252-5 TO-263-5 SOP-8P Taping Direction Information TO-263-5 TO-252-5 Copyright ANPEC Electronics Corp. Rev. B.6 - Feb., 2009 Unit Quantity Tape & Reel Tape & Reel Tape & Reel USER DIRECTION OF FEED USER DIRECTION OF FEED 16 2500 800 2500 ...

Page 17

... APL1581 Taping Direction Information SOP-8P Classification Profile Copyright ANPEC Electronics Corp. Rev. B.6 - Feb., 2009 USER DIRECTION OF FEED 17 www.anpec.com.tw ...

Page 18

... APL1581 Classification Reflow Profiles Profile Feature Preheat & Soak Temperature min (T ) smin Temperature max (T ) smax Time ( smin smax s Average ramp-up rate ( smax P Liquidous temperature ( Time at liquidous ( Peak package body Temperature ( Time (t )** within the specified ...

Page 19

... APL1581 Customer Service Anpec Electronics Corp. Head Office : No.6, Dusing 1st Road, SBIP, Hsin-Chu, Taiwan, R.O.C. Tel : 886-3-5642000 Fax : 886-3-5642050 Taipei Branch : 2F, No. 11, Lane 218, Sec 2 Jhongsing Rd., Sindian City, Taipei County 23146, Taiwan Tel : 886-2-2910-3838 Fax : 886-2-2917-3838 Copyright ANPEC Electronics Corp. ...

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