Description 3.3V/1A. Note: V = V

Transcription

1 Features Advanced Power Maximum dropout of.5v at full load current Fast transient response Output current limiting Built-in thermal shutdown Available packages: SOT3, TO5, SOT89 Good noise rejection Stable with Only uf Low ESR Ceramic Capacitor Three-terminal adjustable or fixed.5v,.8v,.9v,.5v, 3.3V, 5.V RoHS-compliant, halogen-free Typical Applications PC peripherals Communications Description APE7A-HF-3 A Low Dropout Positive Voltage Regulators The APE7A is a low dropout positive adjustable or fixed-mode regulator with minimum output current capability of A. The product is specifically designed to provide well-regulated supply for low-voltage IC applications such as high-speed bus-termination and low current 3.3V logic supplies. It is also well suited for other applications such as VGA cards. The APE7A is guaranteed to have lower than.5v dropout at full load current making it ideal to provide well-regulated outputs of.5 to 5.V with 6.4V to 6V input supply. 5V C uf 5V C uf GND Tab is C uf 3.3V/A Adj Tab is R Ω R Ω V o C uf.5v/a 5V/3.3V using fixed output version Ordering information 5V/.5V using adjustable output version Note: V = V o REF (+ R R ) Halogen Free Tape and reel (3pcs/reel) APE7AX-XX-HF-3TR Package K : SOT3 H : TO5 G(R) : SOT89 Blank : Adjustable 5 :.5V 8 :.8V 9 :.9V 5 :.5V 33 : 3.3V 5 : 5.V Example: APE7AK-33-HF-3TR 3.3V fixed output in RoHS-compliant, halogen free SOT-3 shipped on tape and reel, 3pcs/reel 9A-3 /9

2 APE7A-HF-3 Block Diagram VIN 3 VOUT.5V + Current Limit GND (FIXED) Thermal Shutdown Buffer + - ADJ Pin Configurations 3 PIN SOT3 3 PIN TO5 ( Top View ) 3 Adj (GND) ( Top View ) 3 Tab is Adj (GND) 3 PIN SOT89 Tab is ( Top View ) ( Top View GR - alternate pin out) 3 Adj (GND) 3 Adj (GND) Tab is THIS PRODUCT IS SENSITIVE TO ELECTROSTATIC DISCHARGE, PLEASE HANDLE WITH CAUTION. USE OF THIS PRODUCT AS A CRITICAL COMPONENT IN LIFE SUPPORT OR OTHER SIMILAR SYSTEMS IS NOT AUTHORIZED. APEC 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. APEC RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. /9

3 APE7A-HF-3 Pin Descriptions NAME I/O PIN # FUNCTION Adj (GND) I O I 3 A resistor divider from this pin to the pin and ground sets the adjustable output voltage. (Ground this pin only for Fixed-Mode) The output of the regulator. A capacitor with a minimum value of µf,.ω ESR Ω) must be connected from this pin to ground to ensure stability. The input pin of regulator. A capacitor with a minimum value of µf is connected from this pin to ground to ensure that the input voltage does not sag below the minimum dropout voltage during the load transient response. This pin must always be.5v higher than in order for the device to regulate properly. Absolute Maximum Ratings Symbol Parameter Rating Unit DC Supply Voltage -.3 to 6 V PD Power Dissipation SOT-3 85 mw SOT mw TO-5 5 mw T ST Storage Temperature -65 to +5 C T OP Operating Junction Temperature Range to +5 C 3/9

4 APE7A-HF-3 Electrical Characteristics PARAMETER CONDITIONS MIN TYP MAX UNIT Reference Voltage APE7A-ADJ T J =5 C, (V IN -V OUT )=.5V I O =ma V APE7A-5 I OUT = ma, T J = 5 o C, 3V < V IN < 6V V APE7A-8 I OUT = ma, T J = 5 o C, 3.3V < V IN < 6V V Output Voltage APE7A-9 I OUT = ma, T J = 5 o C, 3.3V < V IN < 6V V APE7A-5 I OUT = ma, T J = 5 o C, 4V < V IN < 6V V APE7A-33 I OUT = ma, T J = 5 o C, 4.8V < V IN < 6V V APE7A-5 I OUT = ma, T J = 5 o C, 6.5V < V IN < 6V V Line Regulation APE7A-XXX I O =ma,v OUT +.5V<V IN <6V, T J =5 o C.5 % APE7A-ADJ V IN =3.3V,Vadj=,mA<Io<A, T J =5 o C (Note,) % APE7A-5 V IN =3V, ma<io<a, T J =5 o C (Note,) 5 mv APE7A-8 V IN =3.3V, ma<io<a, T J =5 o C (Note,) 5 8 mv Load Regulation APE7A-9 V IN =3.3V, ma<io<a, T J =5 o C (Note,) 6 9 mv APE7A-5 V IN =4V, ma<io<a, T J =5 o C (Note,) 5 mv APE7A-33 V IN = 5V, ma<io<a, T J =5 o C (Note,) 6 33 mv APE7A-5 V IN = 6.5V, ma<io<a, T J =5 o C (Note,) 4 5 mv Dropout Voltage (V IN-V OUT ) APE7A-XXX I OUT = A, VOUT= %VOUT.3.5 V Current Limit APE7A-XXX (V IN -V OUT ) = 5V. A Minimum Load Current APE7A-XXX o C <Tj <5 o C 5 ma Thermal Regulation T A =5 o C, 3ms pulse.8.4 %/W Ripple Rejection f=hz, C OUT =5uF Tantalum, I OUT =A APE7A-XXX V IN =V OUT +3V 6 7 db Temperature Stability I O =ma.5 % Thermal Shutdown Temperature 5 C Thermal Shutdown Temperature Recovery 3 C θ JAThermal Resistance SOT89 Junction-to-Ambient SOT-3 (No heat sink; no air flow) TO-5 θ JC I Q Thermal Resistance Junction-to-Case Quiescent Current SOT89 : Control Circuitry/Power Transistor SOT-3 : Control Circuitry/Power Transistor TO-5 : Control Circuitry/Power Transistor APE7A-8/5/8 VIN < 9V 5.5 APE7A-33 VIN < V C/W C/W ma Note: See thermal regulation specifications for changes in output voltage due to heating effects. Line and load regulation are measured at a constant junction temperature by low duty cycle pulse testing. Load regulation is measured at the output lead = /8 from the package. Note: Line and load regulation are guaranteed up to the maximum power dissipation of 5W. Power dissipation is determined by the difference between input and output differential and the output current. Guaranteed maximum power dissipation will not be available over the full input/output range. Note3: Quiescent current is defined as the minimum output current required in maintaining regulation. At V input/output differential the device is guaranteed to regulate if the output current is greater than ma. 4/9

5 APE7A-HF-3 Electrical Characteristics (cont.)... 8 Dropout Voltage (V) Tj = 5 o C Tj = 5 o C Output Voltage Deviation (%) I load=8ma Output Current (ma) Dropout Voltage vs Output Current Temperature ( o C) Load Regulation vs Temperature Output Voltage Change (%) Temperature ( o C) Percent Change in Output Voltage vs Temperature Output Voltage Deviation (%) Input Voltage (V) Line Regulation Output Voltage Deviation (mv) Input Voltage (V) 7.5 Cin=uF 6.5 Cout=uF Tantalum TIME (us) Line Transient Response Load Current (A) Output Voltage Deviation (mv) C in = uf C out = uf Tantalum Preload = ma TIME (us) Load Transient Response 5/9

6 APE7A-HF-3 Marking Information SOT-3 TO-5 (Top view) Output Type: 7A-33 7A: Adjustable 7A-5:.5V YWWSSS 7A-8:.8V 7A-9:.9V 7A-5:.5V 7A-33: 3.3V 7A-5: 5.V Y: Year "9" = 9 "A" = "" = SOT-89 Date Code Y: Year "9" = 9 "A" = WW: Work week ~5 X: Lot code sequence ~9, A~ XXXXX YWWX 3 SSS: Lot code sequence: ~ WW: Work week ~5 Identification Code ( See the table ) Output Type: 7A: Adjustable 7A-5:.5V 7A-8:.8V 7A-9:.9V 7A-5:.5V 7A-33: 3.3V 7A-5: 5.V Identification code 7AA(R) 7AB(R) 7AC(R) 7AG(R) 7AD(R) 7AE(R) 7AF(R) (Top view) 7A-33 YWWSSS Output Type Adjustable (R).5V (R).8V (R).9V (R).5V (R) 3.3V (R) 5.V (R) Logo SSS: Lot code sequence ~ WW: Work week: ~5 Y: Year "9" = 9 "A" = "" = ~ 6/9

7 APE7A-HF-3 Package Dimensions: TO-5 D D E3 E E Millimeters SYMBOLS MIN NOM MAX A A B.4.7. D D E F F E E.5..8 e C B F F e e. All dimensions are in millimeters.. Dimensions do not include mold protrusions. A Marking Information R :.7~.38 A3 (.mm Product: C R = AP43 7A-XX YWWSSS LOGO Product APE7A Date/lot code For details of how to convert this to standard YYWW date code format, Output Voltage (See page 6) Date/lot code (YWWSSS) Y:Last digit of the year WW:Work week SSS: Lot code sequence 7/9

8 Package Dimensions: SOT-3 C A SYMBOLS A B C Millimeters MIN NOM MAX D G E F K..6. APE7A-HF-3 B D E G F K. All dimensions are in millimeters.. Dimensions do not include mold protrusions. Marking Information 7A-XX YWWSSS Product APE7A Output Voltage (See page 6) Date/lot code (YWWSSS) Y:Last digit of the year WW:Work week SSS: Lot code sequence 8/9

9 APE7A-HF-3 Package Dimensions: SOT-89 C J Millimeters SYMBOLS MIN NOM MAX B 3 I H G D E F K A B C E F I H G J K A. All dimensions are in millimeters.. Dimensions do not include mold protrusions. Marking Information Product: See table on page 6 XXXXX YWWS Date/lot code (YWWS) Y:Last digit of the year WW:Work week S: Lot code sequence 9/9