5A Low Dropout Linear Regulator LD1084 Series 5A Low Dropout Linear Regulator General Description • The LD1084 is a series of low dropout positive voltage regulators with a maximum dropout of 1.5V at 5A of load current. • The LD1084 series is available in 1.5V, 1.8V, 2.5V, 3.3V and 5.0V versions. The fixed versions integrate the adjust resistors. It is also available in an adjustable version which can set the output voltage with two external resistors. DPAK (TO-252-2) • The LD1084 series includes a current limiting circuit and a trimmed band-gap reference. It also provides thermal limiting protection against excessive junction temperature. • The LD1084 series is available in standard packages of DPAK (TO-252-2), D2PAK-2(TO-263-2) and TO-220-3. D2PAK-2 (TO-263-2) Features • • • • • • • • Low dropout voltage: 1.3V typical at 5A Current limiting and thermal protection Output current: 5A Current limit: 6.5A Operation junction temperature: 0 to 125°C Line regulation(adj version): 0.015% typical Load regulation(adj version): 0.1% typical RoHS compliant and halogen free TO-220 Applications • • • • • High Efficiency Linear Regulator Battery Chargers Post Regulation for Switching Supply Microprocessor Supply Desktop PCs, RISC and Embedded Processors’ Supply TAITRON COMPONENTS INCORPORATED www.taitroncomponents.com Tel: Fax: (800)-TAITRON (800)-824-8766 (800)-TAITFAX (800)-824-8329 (661)-257-6060 (661)-257-6415 Rev. A/JH Page 1 of 18 5A Low Dropout Linear Regulator LD1084 Series Ordering Information LD1084 □□ - □□□ - 08 - □□□□ Circuit Type Io=5A Packing Code TU: Tube, RoHS UG: Tube, Halogen Free TR30: 13” Reel, RoHS RG30: 13” Reel, Halogen Free Outline D: DPAK(TO-252-2) MC: D2PAK-2(TO-263-2) T: TO-220 Factory Location Code Output Voltage ADJ: Adjustable Voltage 1.5: Fixed Output 1.5V 1.8: Fixed Output 1.8V 2.5: Fixed Output 2.5V 3.3: Fixed Output 3.3V 5.0: Fixed Output 5.0V Marking Information Outline DPAK D2PAK-2 TO-220 Temperature Range 0 to 125°C 0 to 125°C 0 to 125°C PN Marking Code LD1084D-xxx-08-TU AZ1084D-xxxE1 LD1084D-xxx-08-UG AZ1084D-xxxG1 LD1084D-xxx-08-TR30 AZ1084D-xxxE1 LD1084D-xxx-08-RG30 AZ1084D-xxxG1 LD1084MC-xxx-08-TU AZ1084S2-xxxE1 LD1084MC-xxx-08-UG AZ1084S2-xxxG1 LD1084MC-xxx-08-TR30 AZ1084S2-xxxE1 LD1084MC-xxx-08-RG30 AZ1084S2-xxxG1 LD1084T-xxx-08-TU AZ1084T-xxxE1 LD1084T-xxx-08-UG AZ1084T-xxxG1 LD1084T-xxx-08-TR30 AZ1084T-xxxE1 LD1084T-xxx-08-RG30 AZ1084T-xxxG1 Packing Type Tube Tape & Reel Tube Tape & Reel Tube Tape & Reel Note: 1. “xxx” means output voltage, e.g “1.5”. 2. “E1” suffix means RoHS compliant in marking code, and “G1” means Green. Rev. A/JH www.taitroncomponents.com Page 2 of 18 5A Low Dropout Linear Regulator LD1084 Series Pin Configuration 1: GND/ADJ 2: OUTPUT 3: INPUT 1: GND/ADJ 2: OUTPUT 3: INPUT D2PAK-2(TO-263-2) DPAK(TO-252-2) 1: GND/ADJ 2: OUTPUT 3: INPUT TO-220 Block Diagram Rev. A/JH www.taitroncomponents.com Page 3 of 18 5A Low Dropout Linear Regulator LD1084 Series Absolute Maximum Ratings (Note 1) Symbol TJ Description Operating Junction Temperature TSTG Storage Temperature Range TLEAD Lead Temperature (Soldering, 10 sec.) θJA θJC ESD Junction-to-Ambient Thermal Resistance Junction-to-Case Thermal Resistance Ratings Unit 150 °C -65 ~ +150 °C 260 °C DPAK(TO-252-2) 100 D2PAK-2(TO-263-2) 60 TO-220 60 DPAK(TO-252-2) 7.36 D2PAK-2(TO-263-2) 4.15 TO-220 4.15 °C/W °C/W ESD (Human Body Model) 2000 V ESD (Machine Model) 400 V Note: 1. Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated “Recommended Operating Conditions” is not implied. Exposure to “Absolute Maximum Ratings” for extended period may affect device reliability. 2. Absolute maximum ratings indicate limits, beyond which damage to the component may occur. Electrical specifications do not apply when operating the device outside of its operating ratings. Recommended Operating Conditions Symbol Description Min. Max. Unit VIN Input Voltage - 12 V TJ Operating Junction Temperature Range 0 125 °C Rev. A/JH www.taitroncomponents.com Page 4 of 18 5A Low Dropout Linear Regulator LD1084 Series Electrical Characteristics (Unless otherwise specified, TJ=25°C) LD1084-ADJ Symbol VREF ∆VLINE ∆VLOAD VD Description Min. Typ. Max. Unit 1.238 1.250 1.262 V IOUT=10mA, VIN-VOUT=3V 1.225 1.250 1.270 V 10mA≤IOUT≤5A,1.5V≤VIN-VOUT≤5V 0°C≤TJ≤125°C - 0.015 0.2 % IOUT=10mA, 2.85V≤VIN≤10V - 0.035 0.2 % IOUT=10mA, 2.85V≤VIN≤10V, 0°C≤TJ≤125°C - 0.1 0.3 % 0mA≤IOUT≤5A, VIN-VOUT=3V - 0.2 0.4 % 0mA≤IOUT≤5A, VIN-VOUT=3V, 0°C≤TJ≤125°C - 1.3 1.5 V IOUT=5A, ∆VREF =1%, 0°C≤TJ≤125°C 5.5 6.5 - A VIN-VOUT=3V Reference Voltage Line Regulation Load Regulation Dropout Voltage Conditions ILIMIT Current Limit ILOAD Min. Load Current - 3 10 mA VIN =10V, 0°C≤TJ≤125°C IQ Quiescent Current - 5 10 mA VIN =10V, 0°C≤TJ≤125°C ∆eN RMS Noise(∆VOUT) - 0.003 - % 10Hz≤f≤100KHz RR Ripple Rejection 60 72 - dB IOUT=5A, COUT=25uF(Tantalum) VIN-VOUT=3V, f=120Hz, 0°C≤TJ≤125°C IADJ Adjust Pin Current - 55 120 uA IOUT=10mA, VIN =4.25V, 0°C≤TJ≤125°C ∆ IADJ Adjust Pin Current Change - 0.2 5 uA 10mA≤IOUT≤5A,1.5V≤VIN-VOUT≤4.5V, 0°C≤TJ≤125°C - 0.5 - % IOUT=10mA, VIN-VOUT=1.5V, 0°C≤TJ≤125°C - 0.5 - % TA=125°C, 1000hours Temperature Stability Long-Term Stability Rev. A/JH www.taitroncomponents.com Page 5 of 18 5A Low Dropout Linear Regulator LD1084 Series LD1084-1.5 Symbol VOUT ∆VLINE ∆VLOAD VD ILIMIT Description Min. Typ. Max. Unit 1.485 1.5 1.515 V IOUT=0mA, VIN=4.5V 1.47 1.5 1.53 V 10mA≤IOUT≤5A, 3V≤VIN-VOUT≤6V, 0°C≤TJ≤125°C - 0.5 6 mV IOUT=10mA, 3V≤VIN≤10V - 1 6 mV IOUT=10mA, 3V≤VIN≤10V, 0°C≤TJ≤125°C - 3 15 mV 0mA≤IOUT≤5A, VIN-VOUT=3V - 7 20 mV 0mA≤IOUT≤5A, VIN-VOUT=3V, 0°C≤TJ≤125°C - 1.3 1.5 V IOUT=5A, ∆VOUT=1%, 0°C≤TJ≤125°C 5.5 6.5 - A VIN-VOUT=3V Output Voltage Line Regulation Load Regulation Dropout Voltage Current Limit Conditions IQ Quiescent Current - 5 10 mA ∆eN RMS Noise(∆VOUT) - 0.003 - % 10Hz≤f≤100KHz RR Ripple Rejection 60 72 - dB IOUT=5A, COUT=25uF(Tantalum) VIN-VOUT=3V, f=120Hz, 0°C≤TJ≤125°C Temperature Stability - 0.5 - % IOUT=10mA, VIN-VOUT=1.5V, 0°C≤TJ≤125°C Long-Term Stability - 0.5 - % TA=125°C, 1000hours VIN =10V, 0°C≤TJ≤125°C Rev. A/JH www.taitroncomponents.com Page 6 of 18 5A Low Dropout Linear Regulator LD1084 Series LD1084-1.8 Symbol VOUT ∆VLINE ∆VLOAD VD ILIMIT Description Min. Typ. Max. Unit 1.782 1.8 1.818 V IOUT=0mA, VIN=4.8V 1.764 1.8 1.836 V 10mA≤IOUT≤5A, 0°C≤TJ≤125°C - 0.5 6 mV IOUT=10mA, 3.3V≤VIN≤10V - 1 6 mV IOUT=10mA, 3.3V≤VIN≤10V, 0°C≤TJ≤125°C - 3 15 mV 0mA≤IOUT≤5A, VIN-VOUT=3V - 7 20 mV 0mA≤IOUT≤5A, VIN-VOUT=3V, 0°C≤TJ≤125°C - 1.3 1.5 V IOUT=5A, ∆VOUT=1%, 0°C≤TJ≤125°C 5.5 6.5 - A VIN-VOUT=3V Output Voltage Line Regulation Load Regulation Dropout Voltage Current Limit Conditions 3.3V≤VIN-VOUT≤6V, IQ Quiescent Current - 5 10 mA ∆eN RMS Noise(∆VOUT) - 0.003 - % 10Hz≤f≤100KHz RR Ripple Rejection 60 72 - dB IOUT=5A, COUT=25uF(Tantalum) VIN-VOUT=3V, f=120Hz, 0°C≤TJ≤125°C Temperature Stability - 0.5 - % IOUT=10mA, VIN-VOUT=1.5V, 0°C≤TJ≤125°C Long-Term Stability - 0.5 - % TA=125°C, 1000hours VIN =10V, 0°C≤TJ≤125°C Rev. A/JH www.taitroncomponents.com Page 7 of 18 5A Low Dropout Linear Regulator LD1084 Series LD1084-2.5 Symbol VOUT ∆VLINE ∆VLOAD VD ILIMIT Description Min. Typ. Max. Unit 2.475 2.5 2.525 V IOUT=0mA, VIN=5.5V 2.45 2.5 2.55 V 10mA≤IOUT≤5A, 0°C≤TJ≤125°C - 0.5 6 mV IOUT=10mA, 4V≤VIN≤10V - 1 6 mV IOUT=10mA, 4V≤VIN≤10V, 0°C≤TJ≤125°C - 3 15 mV 0mA≤IOUT≤5A, VIN-VOUT=3V - 7 20 mV 0mA≤IOUT≤5A, VIN-VOUT=3V, 0°C≤TJ≤125°C - 1.3 1.5 V IOUT=5A, ∆VOUT=1%, 0°C≤TJ≤125°C 5.5 6.5 - A VIN-VOUT=3V Output Voltage Line Regulation Load Regulation Dropout Voltage Current Limit Conditions 4.0V≤VIN-VOUT≤7V, IQ Quiescent Current - 5 10 mA ∆eN RMS Noise(∆VOUT) - 0.003 - % 10Hz≤f≤100KHz RR Ripple Rejection 60 72 - dB IOUT=5A, COUT=25uF(Tantalum) VIN-VOUT=3V, f=120Hz, 0°C≤TJ≤125°C Temperature Stability - 0.5 - % IOUT=10mA, VIN-VOUT=1.5V, 0°C≤TJ≤125°C Long-Term Stability - 0.5 - % TA=125°C, 1000hours VIN =10V, 0°C≤TJ≤125°C Rev. A/JH www.taitroncomponents.com Page 8 of 18 5A Low Dropout Linear Regulator LD1084 Series LD1084-3.3 Symbol VOUT ∆VLINE ∆VLOAD VD ILIMIT Description Min. Typ. Max. Unit 3.267 3.3 3.333 V IOUT=0mA, VIN=6.3V 3.234 3.3 3.366 V 10mA≤IOUT≤5A, 4.8V≤VIN-VOUT≤8V, 0°C≤TJ≤125°C - 0.5 6 mV IOUT=10mA, 4.8V≤VIN≤10V - 1 6 mV IOUT=10mA, 4.8V≤VIN≤10V, 0°C≤TJ≤125°C - 3 15 mV 0mA≤IOUT≤5A, VIN-VOUT=3V - 7 20 mV 0mA≤IOUT≤5A, VIN-VOUT=3V, 0°C≤TJ≤125°C - 1.3 1.5 V IOUT=5A, ∆VOUT=1%, 0°C≤TJ≤125°C 5.5 6.5 - A VIN-VOUT=3V Output Voltage Line Regulation Load Regulation Dropout Voltage Current Limit Conditions IQ Quiescent Current - 5 10 mA ∆eN RMS Noise(∆VOUT) - 0.003 - % 10Hz≤f≤100KHz RR Ripple Rejection 60 72 - dB IOUT=5A, COUT=25uF(Tantalum) VIN-VOUT=3V, f=120Hz, 0°C≤TJ≤125°C Temperature Stability - 0.5 - % IOUT=10mA, VIN-VOUT=1.5V, 0°C≤TJ≤125°C Long-Term Stability - 0.5 - % TA=125°C, 1000hours VIN =10V, 0°C≤TJ≤125°C Rev. A/JH www.taitroncomponents.com Page 9 of 18 5A Low Dropout Linear Regulator LD1084 Series LD1084-5.0 Symbol VOUT ∆VLINE ∆VLOAD VD ILIMIT Description Min. Typ. Max. Unit 4.95 5 5.05 V IOUT=0mA, VIN=8V 4.9 5 5.1 V 10mA≤IOUT≤5A, 6.5V≤VIN-VOUT≤10V, 0°C≤TJ≤125°C - 0.5 10 mV IOUT=10mA, 6.5V≤VIN≤10V - 1 10 mV IOUT=10mA, 6.5V≤VIN≤10V, 0°C≤TJ≤125°C - 5 20 mV 0mA≤IOUT≤5A, VIN-VOUT=3V - 10 35 mV 0mA≤IOUT≤5A, VIN-VOUT=3V, 0°C≤TJ≤125°C - 1.3 1.5 V IOUT=5A, ∆VOUT=1%, 0°C≤TJ≤125°C 5.5 6.5 - A VIN-VOUT=3V Output Voltage Line Regulation Load Regulation Dropout Voltage Current Limit Conditions IQ Quiescent Current - 5 10 mA ∆eN RMS Noise(∆VOUT) - 0.003 - % 10Hz≤f≤100KHz RR Ripple Rejection 60 72 - dB IOUT=5A, COUT=25uF(Tantalum) VIN-VOUT=3V, f=120Hz, 0°C≤TJ≤125°C Temperature Stability - 0.5 - % IOUT=10mA, VIN-VOUT=1.5V, 0°C≤TJ≤125°C Long-Term Stability - 0.5 - % TA=125°C, 1000hours VIN =10V, 0°C≤TJ≤125°C Rev. A/JH www.taitroncomponents.com Page 10 of 18 5A Low Dropout Linear Regulator LD1084 Series Typical Characteristics Curves Fig.2- Output Voltage vs. Junction Temperature Output Voltage (V) Dropout Voltage (V) Fig.1- Dropout Voltage vs. Output Current Output Current (A) Junction Temperature (°C) Fig.4- Min. Load Current vs. Junction Temperature Reference Voltage (V) Min. Load Current (mA) Fig.3- Reference Voltage vs. Junction Temperature Junction Temperature (°C) Junction Temperature (°C) Rev. A/JH www.taitroncomponents.com Page 11 of 18 5A Low Dropout Linear Regulator LD1084 Series Fig.6- Power Dissipation vs. Case Temperature Power Dissipation (W) Adjust Pin Current (uA) Fig.5- Adjust Pin Current vs. Junction Temperature Case Temperature (°C) Junction Temperature (°C) Fig.8- Adjust Pin Current vs. Output Current Line Regulation (mV) Adjust Pin Current (uA) Fig.7- Line Regulation vs. Junction Temperature Junction Temperature (°C) Output Current (A) Rev. A/JH www.taitroncomponents.com Page 12 of 18 5A Low Dropout Linear Regulator LD1084 Series Fig.10- Short Circuit Current vs. Dropout Voltage Dropout Voltage (V) Short Circuit Current (A) Fig.9- Dropout Voltage vs. Junction Temperature Dropout Voltage (V) Junction Temperature (°C) Fig.12- Line Transient Response IVOUT (2.5A/div), ∆VOUT (0.1V/div) IN (1V/div), ∆VOUT (20mV/div) IOUT (2.5A/div), ∆VOUT (0.1V/div) Fig.11- Load Transient Response Time (100us/div) Conditions: VIN=5.5V, VOUT=2.5V, IOUT=10mA to 5A, CIN=10uF, COUT=10uF Time (200us/div) Conditions: VIN=4.5V to 6.5V, VOUT=2.5V, IOUT=200mA, COUT=10uF Rev. A/JH www.taitroncomponents.com Page 13 of 18 5A Low Dropout Linear Regulator LD1084 Series Ripple Rejection (dB) Fig.13- Ripple Rejection vs. Frequency Frequency (Hz) Typical Applications Rev. A/JH www.taitroncomponents.com Page 14 of 18 5A Low Dropout Linear Regulator LD1084 Series Dimensions in mm(inch) DPAK(TO-252-2) Rev. A/JH www.taitroncomponents.com Page 15 of 18 5A Low Dropout Linear Regulator LD1084 Series D2PAK-2(TO-263-2) Rev. A/JH www.taitroncomponents.com Page 16 of 18 5A Low Dropout Linear Regulator LD1084 Series TO-220 Rev. A/JH www.taitroncomponents.com Page 17 of 18 5A Low Dropout Linear Regulator LD1084 Series How to contact us: US HEADQUARTERS 28040 WEST HARRISON PARKAWAY, VALENCIA, CA 91355-4162 Tel: (800) TAITRON (800) 824-8766 (661) 257-6060 Fax: (800) TAITFAX (800) 824-8329 (661) 257-6415 Email: [email protected] Http://www.taitroncomponents.com TAITRON COMPONENTS MEXICO, S.A .DE C.V. BOULEVARD CENTRAL 5000 INTERIOR 5 PARQUE INDUSTRIAL ATITALAQUIA, HIDALGO C.P. 42970 MEXICO Tel: +52-55-5560-1519 Fax: +52-55-5560-2190 TAITRON COMPONETS INCORPORATED E REPRESENTAÇÕES DO BRASIL LTDA RUA DOMINGOS DE MORAIS, 2777, 2.ANDAR, SALA 24 SAÚDE - SÃO PAULO-SP 04035-001 BRAZIL Tel: +55-11-5574-7949 Fax: +55-11-5572-0052 TAITRON COMPONETS INCORPORATED, SHANGHAI REPRESENTATIVE OFFICE METROBANK PLAZA, 1160 WEST YAN’ AN ROAD, SUITE 1503, SHANGHAI, 200052, CHINA Tel: +86-21-5424-9942 Fax: +86-21-5424-9931 Rev. A/JH www.taitroncomponents.com Page 18 of 18