ETR0324-005 ■GENERAL DESCRIPTION The XB1085 is a series of low dropout positive voltage regulators with a high output current capacity of 3.0A . Stable output can be maintained by using 10μF (CIN) and 22μF (CL) of tantalum capacitors. The fixed voltage types (XB1085P series) are available in 1.5V, 1.8V, 2.5V, 3.3V, and 5.0V. The voltage adjustable type (XB1085K series) is also available which can set the output voltage with only two external resistors. With an overcurrent and thermal protection circuit built-in, the IC is disabled for protection when an output current reaches limit current or junction temperature increases up to limit temperature. The XB1085 series is available in TO-252 package. ■APPLICATIONS ■FEATURES ● High efficiency linear regulators : More than 3.0A (within Pd) Maximum Output Current Maximum Operating Voltage : 12V : 1.5V, 1.8V, 2.5V, 3.3V, Output Voltage 5.0V, (XB1085P) Externally Set (XB1085K/ Reference Voltage 1.25V (TYP.)) : ±1% ( Tj =25℃) Output Voltage Accuracy : 1.3V @ IOUT=3.0A (TYP.) Dropout Voltage : 0.015% (TYP.) <ADJ> Line Regulation : 0.1% (TYP.) <ADJ> Load Regulation Reference Voltage Pin Current : Less than 120μA <ADJ> Overcurrent Protection Circuit Built-In Thermal Protection Circuit Built-In : TO-252 Package ● Battery chargers ● DVD drives ● Set top boxes ● Various battery drive equipment ■TYPICAL APPLICATION CIRCUITS ■TYPICAL PERFORMANCE CHARACTERISTICS ●Output Voltage vs. Output Current XB1085P Series VIN IOUT VOUT VIN XB1085P331 CL=22μF CL=22uF (Tantalum) (Tantalum) VSS CIN=10μF CIN=10uF VIN=4.9V VIN=4.9V CIN=10μF (Tantalum), CL=22μF (Tantalum) CIN=10μF(Tantal),CL=22μF(Tantal) (Tantalum) XB1085K Series VIN VOUT ADJ VIN CIN=10μF CIN=10uF IOUT R1 (Tantalum) CL=22μF CL=22uF (Tantalum) (Tantalum) Output Voltage: VOUT(V) 3.50 3.00 2.50 2.00 Ta=85℃ Ta=25℃ Ta=0℃ 1.50 1.00 0.50 0.00 0 600 1200 1800 2400 Output Current: IOUT (mA) 3000 R2 VOUT=VREF×(1+R2/R1) + IADJ×R2 1/11 XB1085 Series ■PIN CONFIGURATION VOUT VOUT (Tab) (Tab) 22 22 VOUT VOUT 11 VSS / VSS/ADJ ADJ 3 V IN VIN TO-252 (TOP VIEW) ■PIN ASSIGNMENT PIN NUMBER TO-252 PIN NAME FUNCITONS 1 2 3 VSS / ADJ VOUT VIN Ground / Reference Voltage Output Input ■PRODUCT CLASSIFICATION ●Ordering Information XB1085①②③④⑤⑥ DESIGNATOR ① ②③④ 2/11 DESCRIPTION Type of Regulators SYNBOL DESCRIPTION P : Fixed VOUT K : Adjustable (Externally Set) 151 : VOUT=1.5V (±1%) 181 : VOUT=1.8V (±1%) Output Voltage and Output 251 : VOUT=2.5V (±1%) Voltage Accuracy 331 : VOUT=3.3V (±1%) 501 : VOUT=5.0V (±1%) 12B : VREF=1.25V (±1%) ⑤ Package ⑥ Device Orientation J : TO-252 R : Embossed tape, standard feed L : Embossed tape, reverse feed XB1085 Series ■BLOCK DIAGRAM VIN VOUT Current Limit Thermal Protection Error Amp VSS/ ADJ Bandgap Reference *Diodes inside the circuit are ESD protection diodes. ■ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATINGS UNIT Input Voltage VIN 18 V Power Dissipation TO-252 Pd 1300 (*2) mW Operating Junction Temperature Tj 125 ℃ Storage Temperature Range Tstg - 55 ~ 125 ℃ Note: *1: Stresses greater than those listed above ratings may cause permanent damage to the device. *2: The rating of the power dissipation is determined when mounted on the PCB. 3/11 XB1085 Series ■ELECTRICAL CHARACTERISTICS XB1085PxxxJ PARAMETER Output Voltage Line Regulation Load Regulation Tj= 25℃ unless otherwise specified SYMBOL CONDITIONS VOUT (1.5V) VIN=4.5V, IOUT=0mA VOUT (1.8V) VIN=4.8V, IOUT=0mA VOUT (2.5V) VOUT (3.3V) VOUT (5.0V) VIN=5.5V, IOUT=0mA VIN=6.3V, IOUT=0mA VIN=8.0V, IOUT=0mA 1.8 1.53 1.818 1.836 2.475 2.450 3.267 3.234 4.95 2.5 3.3 5 2.525 2.550 3.333 3.366 5.05 4.9 - 0.5 5.1 6 - 1 0.5 6 6 1 6 - 0.5 1 0.5 1 0.5 6 6 6 6 10 - 1 3 10 15 - 7 3 20 15 - 7 3 7 3 7 5 20 15 20 15 20 20 - 10 1.3 35 1.5 O.T.(*1) 3.2 - 4.5 5 O.T.(*1) - 0.5 O.T. (*1) O.T. (*1) O.T.(*1) O.T.(*1) O.T. ⊿VOUT1 (1.8V) 3.3V≦VIN≦10V IOUT=10mA O.T. (*1) ⊿VOUT1 (2.5V) ⊿VOUT1 (3.3V) ⊿VOUT1 (5.0V) 4V≦VIN≦10V IOUT=10mA 4.8V≦VIN≦10V IOUT=10mA 6.5V≦VIN≦10V IOUT=10mA O.T.(*1) ⊿VOUT2 (1.5V) VIN-VOUT=3.0V 0mA≦IOUT≦3.0A O.T.(*1) ⊿VOUT2 (1.8V) VIN-VOUT=3.0V 0mA≦IOUT≦3.0A ⊿VOUT2 (2.5V) ⊿VOUT2 (3.3V) ⊿VOUT2 (5.0V) VIN-VOUT=3.0V 0mA≦IOUT≦3.0A VIN-VOUT=3.0V 0mA≦IOUT≦3.0A VIN-VOUT=3.0V 0mA≦IOUT≦3.0A Temperature Stability Ts VIN-VOUT=1.5V IOUT=10mA 1.485 1.515 (*1) ⊿VOUT=1%, IOUT=3.0A VIN-VOUT=3.0V VIN=10V MAX. 1.5 3V≦VIN≦10V IOUT=10mA Vdif ILIM IDD TYP. 1.47 1.782 1.764 O.T.(*1) ⊿VOUT1 (1.5V) Dropout Voltage Limit Current Supply Current MIN. O.T.(*1) O.T. (*1) O.T. (*1) O.T.(*1) O.T.(*1) O.T. (*1) UNIT CIRCUIT V ① V ① V ① V ① V ① mV ① mV ① mV ① mV ① mV ① mV ① mV ① mV ① mV ① mV ① V ① 10 A mA ① ② - % - Note: *1: O.T. denotes the specifications which apply over the operating junction Temperature range (0℃ ≦ Tj ≦125OC). Please be sure that the power consumption does not exceed the power dissipation rating 1300mW. If the power consumption exceeds the power dissipation rating and the operating junction temperature rises more than the rating 125OC, the IC enters thermal shutdown state. 4/11 XB1085 Series ■ELECTRICAL CHARACTERISTICS (Continued) XB1085K12BJ Tj= 25℃ unless otherwise specified PARAMETER SYMBOL Reference Voltage VREF Line Regulation ⊿VOUT1 Load Regulation ⊿VOUT2 Dropout Voltage Limit Current Vdif ILIM Temperature Stability Ts Minimum Output Current Adjust Voltage Pin Current IOUTmin IADJ CONDITIONS VIN-VOUT=3.0V IOUT=10mA 2.85V≦VIN≦10V IOUT=10mA VIN-VOUT=3.0V 0mA≦IOUT≦3.0A ⊿VOUT=1%, IOUT=3.0A VIN-VOUT=3.0V O.T.(*1) MIN. TYP. MAX. 1.238 1.225 - 3.2 1.25 0.015 0.035 0.1 0.2 1.3 4.5 1.262 1.275 0.2 0.2 0.3 0.4 1.5 - O.T.(*1) O.T. (*1) UNIT CIRCUIT V ① % ① % ① V A ① ① VIN-VOUT=1.5V IOUT=10mA O.T.(*1) - 0.5 - % - VIN=10V O.T.(*1) - 3 10 mA ① VIN=4.25V, IOUT=10mA O.T. (*1) - 55 120 μA ① Note: *1: O.T. denotes the specifications which apply over the operating junction Temperature range (0℃ ≦ Tj ≦125OC). Please be sure that the power consumption does not exceed the power dissipation rating, 1300mW. If the power consumption exceeds the power dissipation rating and the operating junction temperature rises more than the rating, 125OC, the IC enters thermal shutdown state. 5/11 XB1085 Series ■TEST CIRCUITS ●XB1085PxxxJ Circuit ① CIN VIN A VOUT VIN V CL V VSS * CIN=10μF (Tantalum), CL=22μF (Tantalum) Circuit ② A VOUT VIN VIN VSS ●XB1085K12BJ Circuit ① VIN VOUT V VIN CIN ADJ 100Ω CL A ↓ 164Ω ※VOUT: 3.3V * * CIN=10μF (Tantalum), CL=22μF (Tantalum) 6/11 V ↓ XB1085 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (2) Output Voltage vs. Input Voltage (1) Output Voltage vs. Output Current XB1085P331 XB1085P331 3.5 Output Voltage: VOUT(V) Output Voltage: VOUT(V) VIN=4.9V VIN=4.9V CIN=10μF (Tantalum), CL=22μF (Tantalum) CIN=10μF(Tantal),CL=22μF(Tantal) 3.0 2.5 2.0 Ta=85℃ Ta=25℃ Ta=0℃ 1.5 1.0 0.5 IOUT=10mA IOUT=10mA CIN=10μF (Tantalum), CL=22μF (Tantalum) CIN=10μF(Tantal),CL=22μF(Tantal) 3.5 3.0 2.5 2.0 Ta=85℃ Ta=25℃ Ta=0℃ 1.5 1.0 0.5 0.0 0.0 0 1000 2000 Output Current: IOUT (mA) 0 3000 (3) Dropout Voltage vs. Output Current 2 Supply Current: ISS (mA) Dropout Voltage: Vdif （V) 1.0 0.8 0.6 Ta=85℃ Ta=25℃ Ta=0℃ 0.4 0.2 0.0 0 500 1000 1500 2000 2500 Output Current: IOUT (mA) CIN=10μF (Tantalum), CL=22μF (Tantalum) CIN=10uF(Tantal）、CL=22uF（Tantal） 6 5 4 3 Ta=85℃ Ta=25℃ Ta=0℃ 2 1 0 3000 0 (5) Reference Voltage vs. Ambient Temperature 2 10 IOUT=10mA IOUT＝10mA CIN=10μF (Tantalum), CL=22μF (Tantalum) CIN=10μF(Tantal),CL=22μF(Tantal) Adjust Pin Current: IADJ (μA） Reference Voltage: VREF （V) 1.27 1.26 1.25 1.24 1.23 1.22 20 30 40 50 60 70 Ambient Temperature: Ta (℃) 8 XB1085K12B (VOUT=3.3V) XB1085K12B(VOUT=3.3V) VIN=4.9V VIN=4.9V CIN=10μF (Tantalum), CL=22μF (Tantalum) CIN=10μF(Tantal),CL=22μF(Tantal) 10 4 6 Supply Voltage:VIN VIN(V) Input Voltage: (V) (6) Adjust Pin Current vs. Ambient Temperature XB1085K12B （VOUT=3.3V) 0 10 XB1085P331 CIN=10μF (Tantalum), CL=22μF (Tantalum) CIN=10uF(Tantal）、CL=22uF(Tantal) 1.2 8 (4) Supply Current vs. Input Voltage XB1085P331 ＾ 4 6 SupplyVoltage: Voltage:VIN VIN(V) Input (V) 80 90 100 80 60 40 VIN=4.25V 20 0 0 10 20 30 40 50 60 70 Ambient Temperature: Ta (℃) 80 90 7/11 XB1085 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (7) Load Transient Response CIN=CL=10μF(Tantal) CIN=CL=10μF (Tantalum) 4.0 3.0 2.0 3A 1.0 0.1A IOUT Output Current: IOUT(A) VOUT Output Current:IOUT(A ) VIN=6.3V VIN=6.3V CIN=CL=10μF (Tantalum) CIN=CL=10μF(Tantal) Output Voltage: VOUT(V) Output Current: IOUT(A) 12.0 10.5 9.0 7.5 6.0 4.5 3.0 1.5 0.0 -1.5 VIN=6.3V VIN=6.3V 0.0 12.0 10.5 9.0 7.5 6.0 4.5 3.0 1.5 0.0 -1.5 4.0 VOUT 3.0 IOUT 3A 2.0 0.1A 1.0 OutputVoltage:VOUT(V) XB1085K12B(VOUT=3.3V) XB1085P331 0.0 Time（100μs/DIV） Time（100μs/DIV） (8) Input Transient Response XB1085K12B(VOUT=3.3V) XB1085P331 IOUT=200mA IOUT=200mA CIN=1μF(Tantal),CL=10μF(Tantal) IOUT=200mA IOUT=200mA 3.30 3.28 9 8 3.26 7.3V 3.24 7 5.3V VIN 6 3.22 10 3.34 9 3.32 8 3.30 7.3V 7 6 3.28 VIN 5.3V 3.26 5 3.20 5 3.36 VOUT Time（200μs/DIV） 3.24 Time（200μs/DIV） (9) Ripple Rejection Rate XB1085P331 XB1085K12B(VOUT=3.3V) 100 80 60 40 20 0 0.01 0.1 11 0.1 1010 ripple rejection rate（kHz) Ripple Frequency: f (kHz) 8/11 100 VIN=6.3VDC+1.0Vp-pAC VIN=6.3VDC+ 1.0Vp-pAC Ripple Rejection Rate: PSRR (dB) ripple rejection rate（ｄB) IOUT=1A、Ta=25℃、CL=25uF(Tantal) IOUT=1A, Ta=25℃, CL=25μF (Tantalum) ripple rejection rate（ｄB) Ripple Rejection Rate: PSRR (dB) VIN=6.3VDC+1.0Vp-pAC VIN=6.3VDC+ 1.0Vp-pAC IOUT=1A、Ta=25℃、CL=25uF(Tantal) IOUT=1A, Ta=25℃, CL=25μF (Tantalum) 100 80 60 40 20 0 0.01 0.1 1 1 10 10 0.1 ripple rejectionf (kHz) rate（kHz) Ripple Frequency: 100 Output Voltage: VOUT(V) 10 11 3.32 Supply Voltage: VIN(V) VOUT Output Voltage: VOUT(V) Supply Voltage: VIN(V) 11 CIN=1μF (Tantalum), CL=10μF (Tantalum) CIN=1μF(Tantal),CL=10μF(Tantal) CIN=1μF (Tantalum), CL=10μF (Tantalum) XB1085 Series ■ PACKAGING INFORMATION ●TO-252 1.1±0.25 6.55±0.2 9.9±0.55 0.5±0.1 0.85±0.25 6.1±0.15 5.3±0.2 +0.1 2.3 -0.15 0.75±0.15 （2. 28） 0. 5±0. 1 MIN4.32 0.75±0.15 0.75±0.15 （2. 28） UNIT:単位 mm ： m m 9/11 XB1085 Series ■MARKING RULE ●TO-252 ①② Represents product series MARK ① ② 8 5 ① ② ③ ④ ⑤ ⑥ 2 3 TO-252 (TOP VIEW) XB1085****J* ③ Represent the type of regulator MARK TYPE P Fixed Output Type K Adjustable (Externally Set) ⑦ ⑧ ⑨ 1 PRODUCT SERIES ④⑤ Represents output voltage MARK ④ ⑤ 1 5 1 8 2 5 3 3 5 0 1 2 PRODUCT SERIES XB1085P***J* XB1085K***J* OUTPUT VOTLAGE PRODUCT SERIES 1.5V 1.8V 2.5V 3.3V 5.0V ADJ XB1085P151J* XB1085P181J* XB1085P251J* XB1085P331J* XB1085P501J* XB1082K12BJ* ⑥ Represents output voltage accuracy and output type OUTPUT VOLTAGE MARK PRODUCT SERIES ACCURACY (OUTPUT TYPE) 1 1% XB1085P**1J* B Adjustable XB1085K12BJ* ⑦ Represents the last digit of production year ex.) MARK PRODUCTION YEAR 7 2007 8 2008 ⑧ Represents production lot number 0 to 9, A to Z repeated. (G, I, J, O, Q, W excepted. ‘0’ of the first digit does not mark.) * No character inversion used. ex.) MARK PRODUCTION LOT NUMBER ⑧ ⑨ Blank 3 03 1 A 1A 10/11 XB1085 Series 1. The products and product specifications contained herein are subject to change without notice to improve performance characteristics. Consult us, or our representatives before use, to confirm that the information in this catalog is up to date. 2. We assume no responsibility for any infringement of patents, patent rights, or other rights arising from the use of any information and circuitry in this catalog. 3. Please ensure suitable shipping controls (including fail-safe designs and aging protection) are in force for equipment employing products listed in this catalog. 4. The products in this catalog are nodeveloped, designed, or approved for use with such equipment whose failure of malfunction can be reasonably expected to directly endanger the life of, or cause significant injury to, the user. (e.g. Atomic energy; aerospace; transport; combustion and associated safety equipment thereof.) 5. Please use the products listed in this catalog within the specified ranges. Should you wish to use the products under conditions exceeding the specifications, please consult us or our representatives. 6. We assume no responsibility for damage or loss due to abnormal use. 7. All rights reserved. No part of this catalog may be copied or reproduced without the prior permission of Torex Semiconductor Ltd. 11/11