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| GS1086 New Product Vishay Semiconductors formerly General Semiconductor 1.5A Low Dropout Positive Adjustable Regulator SOT-223 TO-252 (DPak) TO-220AB TO-263AB (D2Pak) 1 2 3 1 1 2 3 2 3 GS1086CST GS1086CE 2 1 3 GS1086CT GS1086CM Pin Definition 1. Adjust/Gnd. 2. Vout (tab) 3. Vin Description The GS1086 is a low dropout three terminal regulator with 1.5A output current capability. The output voltage is adjustable with the use of a resistor divider. For fixed output voltage versions, the output voltage is internally set at 2.5V, 2.85V, 3.3V or 5V. Dropout is guaranteed at a maximum of 1.5V at maximum output current. Its low dropout voltage and fast transient response make it ideal for low voltage microprocessor applications. Internal current and thermal limiting provides protection against any overload condition that would create excessive junction temperatures. Features * Dropout Voltage 1.3V at 1.5A Output Current * Fast Transient Response * Line Regulation typically at 0.015% * Load Regulation typically at 0.1% * Internal thermal and current limiting * Adjustable Output Voltage or Fixed 2.5V, 2.85V, 3.3V, 5V * Standard 3-Pin Power Packages Functional Block Diagram Applications * Post Regulator for Switching Supply * Battery Chargers * Constant-Current Regulators * PC Add-On Card Mechanical Data VIN Current Amp Case: TO-220AB, TO-263AB (D2PAK), TO-252 (DPAK) and SOT-223 High temperature soldering guaranteed: 260C/10 seconds at terminals VREF 1.25V 55A + + GM -- Thermal Limit Current Limit VOUT Case outlines are on the back page For fixed voltage device ADJ GND Document Number 74801 12-Mar-02 www.vishay.com 1 GS1086 Vishay Semiconductors formerly General Semiconductor Maximum Ratings and Thermal Characteristics Parameter Vin Pin to ADJ/GND Pin Thermal Resistance - Junction to Case TO-220AB TO-252 TO-263AB SOT-223 Operating Junction Temperature Range Storage Temperature Range (TA = 25C unless otherwise noted) Symbol Vin Value 7 3.0 8.0 3.0 15.0 0 to +125 -65 to 150 Unit V RJC C/W TJ Tstg (2) C C Electrical Characteristics (1) Parameter TJ = 25C , VIN = 5V, Io = 10mA unless otherwise noted. Symbol Test Conditions TJ = 25C 0C TJ 125C 2.65V VIN 7V 10mA Io 1.5A GS1086-2.5 VIN = 5V GS1086-2.85 VIN = 5V GS1086-3.3 VIN = 5V GS1086-5 VIN = 7V GS1086 0C TJ 125C 2.65V VIN 7V 10mA Io 1.5A 2.65V VIN 7V TJ = 25C 0C TJ 125C 10mA Io 1.5A TJ = 25C 0C TJ 125C 0C TJ 125C Io = 1.5A Io = 1.0A Io = 500mA 0C TJ 125C 2.65 Vin 7V 10mA Io 1.5A 0C TJ 125C 2.65 Vin 7V 10mA Io 1.5A 0C TJ 125C Io = 0.5A 0C TJ 125C 0C TJ 125C Min 1.238 1.225 Typ 1.250 1.250 Max 1.262 1.275 Unit Reference Voltage VREF V Output Voltage VOUT 2.47 2.82 3.26 4.95 0.98VN 2.5 2.85 3.30 5.00 VN 2.53 2.88 3.33 5.05 1.02VN V Line Regulation REGline 0.015 0.02 0.1 0.2 1.3 1.25 1.2 1.5 2.0 55 0.2 0.2 0.3 0.4 1.5 1.45 1.4 % VO Load Regulation REGload % VO Dropout Voltage VDROP V Output Current Adjust Pin Current Io Iadj A 120 A Adjust Pin Current Change Iadj 0.2 5 A Temperature Stability Minimum Load Current Adjustable Version TS ILMIN 0.8 3 10 %VO mA www.vishay.com 2 Document Number 74801 12-Mar-02 GS1086 Vishay Semiconductors formerly General Semiconductor Electrical Characteristics (1) (con't.) Parameter Quiescent Current Fixed Voltage Version RMS Output Noise Ripple Rejection Ratio Thermal Regulation Long Term Stability IQ N RR RTH TJ = 25C (2) , VIN = 5V, Io = 10mA unless otherwise noted. Symbol Test Conditions 0C TJ 125C 10HZ f 10 kHZ f = 120 HZ, CO = 25F Cadj = 25F TA = 25C, 30ms Pulse TA = 125C, 1000 Hrs Min Typ 10 0.003 Max 14 Unit mA %VO dB 60 68 0.02 0.3 0.05 %/W %VO Notes: (1) All parameters, except nominal output voltage are specified for the variable voltage version, allowing a wider Vin Range. The specified limits also apply for the fixed voltage versions over the allowable input voltage range: GS1086-2.5 (3.9V - 7.0V), GS1086-2.85 (4.25V - 7.0V), GS1086-3.3 (4.75V - 7.0V), GS1086-5 (6.4V - 7.0V). (2) To maintain the specified junction temperatures, low duty cycle pulse testing is required for most parameters. Typical Application Circuit VIN 5V 3 2 R1 125 1% R2 205 1% VOUT 3.3V VIN 5V 3 GS1086-2.5 GS1086-2.85 GS1086-3.3 GS1086-5 1 2 VOUT GS1086 1 ADJ VREF C1 10F + + C2 10F C1 10F + + C2 10F Fixed Voltage Regulator Adjustable Voltage Regulator Notes: VREF = VOUT - VADJ = 1.25V (typ.) VOUT = VREF x (1+R2/R1) + IADJ x R2 IADJ = 55A (typ.) (1) C1 needed if device is far away from filter capacitors (2) C2 required for stability Document Number 74801 12-Mar-02 www.vishay.com 3 GS1086 Vishay Semiconductors formerly General Semiconductor Ratings and Characteristic Curves (TA = 25C unless otherwise noted) Fig. 1 - Dropout Voltage (VOUT = 3.3V) 2.0 1.30 IOUT = 1.5A 1.6 TJ = 50C 1.25 Fig. 2 - Dropout Voltage v.s. Temperature Minimum Differential Voltage (V) Dropout Voltage (V) TJ = 0C 1.2 TJ = 125C 0.8 1.20 1.15 1.10 0.4 1.05 0 0 200 400 600 800 1000 1200 1400 1600 0 20 40 60 80 100 120 140 Output Current (mA) Ambient Temperature (C) Fig. 3 - Minimum Load Current (Adjustable Version) 5 100 Fig. 4 - Adjust Pin Current Minimum Operating Current (mA) TJ = 125C 3 TJ = 25C 2 TJ = 0C Adjust Pin Current (A) 4 80 60 40 1 20 0 1 2 3 4 5 6 0 --50 --25 0 25 50 75 100 125 Input / Output Differential Voltage (V) Temperature (C) Fig. 5 - Temperature Stability 1.6 Iout = 0.5A 1.2 80 70 Fig. 6 - Ripple Rejection (with Cadj 25F) COUT = 25F Output Voltage Deviation (%) 0.8 0.4 0.0 --0.4 --0.8 --1.2 --1.6 --20 Ripple Rejection (dB) COUT = 10F 60 50 40 30 COUT = 10F 20 COUT = 25F 0 20 40 60 80 100 120 140 10 100 1K 10K 100K 1M Temperature (C) www.vishay.com 4 Frequency (Hz) Document Number 74801 12-Mar-02 GS1086 Vishay Semiconductors formerly General Semiconductor Ratings and Characteristic Curves (TA = 25C unless otherwise noted) Fig. 7 - Load Transient Response 0.1 Fig. 8 - Line Transient Response Output Voltage (mV, AC) 50 0 --50 --100 COUT = 10F (Tantalum) VOUT = 3.3V Output Voltage (V, AC) 0.05 0 --0.05 --0.1 VIN = 5V CIN = 1F COUT = 10F (Tantalum) VOUT = 3.3V Load Current Input Voltage (V) 0.4A 0.1A 7.0 6.0 0 40 80 120 160 200 0 10 20 30 40 50 Time (s) Time (s) Ordering Information GS1086Cxx xxx Output Voltage Default: Adj. 2.5: 2.5V 2.85: 2.85V 3.3: 3.3V 5: 5.0V Package Type ST: SOT-223 T: TO-220 M: TO-263 E: TO-252 Document Number 74801 12-Mar-02 www.vishay.com 5 GS1086 Vishay Semiconductors formerly General Semiconductor Case Outlines SOT-223 6.80 6.30 3.15 2.90 TO-252 (DPAK) 6.73 6.35 2.38 2.19 0.58 0.46 Top View 5.46 5.21 3.70 3.30 7.30 6.70 5.59 5.33 10.42 9.40 1 2 3 1 0.80 0.60 2 3 0.88 0.64 1.80 Max. 0.12 0.02 2.30 Typ. 0.91 Min. 0.35 0.24 0.51 (min.) 2.28 (TYP.) 1.27 1.02 13 3 Dimensions in millimeters TO-263 10.29 9.65 4.83 4.06 1.40 1.14 3.42 2.54 10.66 9.66 TO-220 4.08 3.54 4.82 3.56 1.39 0.51 6.85 5.85 1.40 (max.) 9.66 8.63 15.88 16.51 14.23 1 2 3 14.60 1.40 1.14 1.00 0.50 2.54 (TYP.) 2.80 2.28 0.7 (max.) 6.35 Max. 14.73 12.70 2.79 2.29 1.77 1.15 1.01 (with plating) 0.38 (with plating) 1.14 0.31 2.92 2.04 www.vishay.com 6 Document Number 74801 12-Mar-02 |
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