GS1086 Vishay Semiconductors New Product formerly General Semiconductor 1.5A Low Dropout Positive Adjustable Regulator TO-252 (DPak) SOT-223 TO-263AB (D2Pak) TO-220AB 1 2 2 3 2 3 3 1 1 GS1086CST GS1086CE 3 2 1 GS1086CT Pin Definition GS1086CM Description 1. Adjust/Gnd. 2. Vout (tab) 3. Vin 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 Applications • Post Regulator for Switching Supply • Battery Chargers • Constant-Current Regulators • PC Add-On Card Functional Block Diagram Mechanical Data VIN VREF 1.25V + + GM -- Current Amp High temperature soldering guaranteed: 260°C/10 seconds at terminals Thermal Limit 55µA Case: TO-220AB, TO-263AB (D2PAK), TO-252 (DPAK) and SOT-223 Current Limit Case outlines are on the back page For fixed voltage device ADJ Document Number 74801 12-Mar-02 VOUT GND www.vishay.com 1 GS1086 Vishay Semiconductors formerly General Semiconductor Maximum Ratings and Thermal Characteristics Parameter Vin Pin to ADJ/GND Pin (TA = 25°C unless otherwise noted) Symbol Value Unit Vin 7 V Thermal Resistance – Junction to Case TO-220AB TO-252 TO-263AB SOT-223 Operating Junction Temperature Range Storage Temperature Range Electrical Characteristics (1) Parameter Reference Voltage TJ = 25°C (2) RθJC 3.0 8.0 3.0 15.0 °C/W TJ 0 to +125 °C Tstg –65 to 150 °C , VIN = 5V, Io = 10mA unless otherwise noted. Symbol Test Conditions Min Typ Max VREF TJ = 25°C 0°C ≤ TJ ≤ 125°C 2.65V ≤ VIN ≤ 7V 10mA ≤ Io ≤ 1.5A 1.238 1.225 1.250 1.250 1.262 1.275 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 GS1086-2.5 VIN = 5V GS1086-2.85 VIN = 5V GS1086-3.3 VIN = 5V GS1086-5 VIN = 7V GS1086 0°C ≤ TJ ≤ 125°C 2.65V ≤ VIN ≤ 7V 10mA ≤ Io ≤ 1.5A Unit V Output Voltage VOUT Line Regulation REGline 2.65V ≤ VIN ≤ 7V TJ = 25°C 0°C ≤ TJ ≤ 125°C 0.015 0.02 0.2 0.2 % VO Load Regulation REGload 10mA ≤ Io ≤ 1.5A TJ = 25°C 0°C ≤ TJ ≤ 125°C 0.1 0.2 0.3 0.4 % VO Dropout Voltage VDROP 0°C ≤ TJ ≤ 125°C Io = 1.5A Io = 1.0A Io = 500mA 1.3 1.25 1.2 1.5 1.45 1.4 Output Current Io 0°C ≤ TJ ≤ 125°C Iadj 2.65 ≤ Vin ≤ 7V 10mA ≤ Io ≤ 1.5A 0°C ≤ TJ ≤ 125°C 55 120 µA ∆Iadj 2.65 ≤ Vin ≤ 7V 10mA ≤ Io ≤ 1.5A 0°C ≤ TJ ≤ 125°C 0.2 5 µA TS Io = 0.5A 0°C ≤ TJ ≤ 125°C 0.8 ILMIN 0°C ≤ TJ ≤ 125°C 3 Adjust Pin Current Adjust Pin Current Change Temperature Stability Minimum Load Current Adjustable Version www.vishay.com 2 1.5 2.0 V V A %VO 10 mA Document Number 74801 12-Mar-02 GS1086 Vishay Semiconductors formerly General Semiconductor Electrical Characteristics (1) (con’t.) Parameter TJ = 25°C (2) , VIN = 5V, Io = 10mA unless otherwise noted. Symbol Test Conditions Quiescent Current Fixed Voltage Version IQ RMS Output Noise Typ Max Unit 0°C ≤ TJ ≤ 125°C 10 14 mA N 10HZ ≤ f ≤ 10 kHZ 0.003 %VO Ripple Rejection Ratio RR f = 120 HZ, CO = 25µF Cadj = 25µF 68 dB Thermal Regulation RTH TA = 25°C, 30ms Pulse 0.02 TA = 125°C, 1000 Hrs 0.3 Long Term Stability Min 60 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 C1 10µF 3 GS1086-2.5 GS1086-2.85 GS1086-3.3 GS1086-5 + 2 1 Fixed Voltage Regulator VOUT VIN 5V 3 GS1086 1 ADJ + C2 10µF C1 10µF VOUT 3.3V 2 VREF R1 125Ω 1% + + C2 10µF R2 205Ω 1% Adjustable Voltage Regulator Notes: VREF = VOUT – VADJ = 1.25V (typ.) VOUT = VREF x (1+R2/R1) + IADJ x R2 IADJ = 55µA (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 = 25°C unless otherwise noted) Fig. 2 – Dropout Voltage v.s. Temperature Fig. 1 – Dropout Voltage (VOUT = 3.3V) 1.30 IOUT = 1.5A 1.6 1.25 TJ = 50°C TJ = 0°C Dropout Voltage (V) Minimum Differential Voltage (V) 2.0 1.2 TJ = 125°C 0.8 1.20 1.15 1.10 0.4 1.05 0 0 200 400 600 800 1000 1200 0 1400 1600 20 Fig. 3 – Minimum Load Current (Adjustable Version) 80 100 120 140 Fig. 4 – Adjust Pin Current Adjust Pin Current (µA) 4 TJ = 125°C 3 TJ = 25°C 2 TJ = 0°C 1 0 1 2 3 4 5 80 60 40 20 0 --50 6 --25 0 25 50 75 100 Input / Output Differential Voltage (V) Temperature (°C) Fig. 5 – Temperature Stability Fig. 6 – Ripple Rejection (with Cadj 25µF) 125 80 1.6 COUT = 25µF Iout = 0.5A 1.2 70 Ripple Rejection (dB) Output Voltage Deviation (%) 60 100 5 Minimum Operating Current (mA) 40 Ambient Temperature (°C) Output Current (mA) 0.8 0.4 0.0 --0.4 --0.8 COUT = 10µF 60 COUT = 25µF 50 40 30 COUT = 10µF --1.2 --1.6 --20 20 0 20 40 60 80 Temperature (°C) www.vishay.com 4 100 120 140 10 100 1K 10K 100K 1M Frequency (Hz) Document Number 74801 12-Mar-02 GS1086 Vishay Semiconductors formerly General Semiconductor Ratings and Characteristic Curves (TA = 25°C unless otherwise noted) Fig. 8 – Line Transient Response Fig. 7 – Load Transient Response Output Voltage (mV, AC) 0.05 0 VIN = 5V CIN = 1µF COUT = 10µF (Tantalum) VOUT = 3.3V --0.05 --0.1 Input Voltage (V) Load Current Output Voltage (V, AC) 0.1 0.4A 0.1A 0 40 80 120 160 50 0 --50 COUT = 10µF (Tantalum) VOUT = 3.3V --100 7.0 6.0 0 200 10 20 30 40 50 Time (µs) Time (µs) 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 TO-252 (DPAK) SOT-223 6.73 6.35 6.80 6.30 3.15 2.90 7.30 6.70 5.59 5.33 2 1 1 2 0.58 0.46 5.46 5.21 Top View 3.70 3.30 2.38 2.19 10.42 9.40 3 3 0.80 0.60 0.88 0.64 0.51 (min.) 1.80 Max. 0.12 0.02 2.28 (TYP.) 0.91 Min. 2.30 Typ. 1.27 1.02 0.35 0.24 13° ±3° Dimensions in millimeters TO-263 TO-220 10.29 4.83 9.65 4.06 10.66 9.66 4.82 3.56 4.08 3.54 1.39 0.51 1.40 1.14 3.42 2.54 6.85 5.85 16.51 14.23 1.40 (max.) 9.66 8.63 15.88 1 2 3 14.60 1.40 2.80 1.14 2.28 6.35 Max. 14.73 12.70 0.7 (max.) 1.00 0.50 2.54 (TYP.) 2.79 2.29 www.vishay.com 6 1.77 1.15 1.01 (with plating) 0.38 (with plating) 1.14 0.31 2.92 2.04 Document Number 74801 12-Mar-02