GS1117 Vishay Semiconductors New Product formerly General Semiconductor 800mA Low Dropout Positive Adjustable Regulator SOT-223 TO-252 (DPak) TO-263AB (D2Pak) TO-220AB 1 2 2 3 2 3 3 1 1 3 2 1 GS1117CST GS1117CE GS1117CT Pin Definition GS1117CM Description 1. Adjust/Gnd. 2. Vout (tab) 3. Vin The GS1117 is a low dropout three terminal regulator with 800mA 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 1.4V at maximum output current. Its low dropout voltage and fast transient response make it ideal for low voltage microprocessor applications. Internal thermal limiting provides protection against any overload condition that would create excessive junction temperatures. Features • Dropout Voltage 1.2V at 800mA Output Current • Fast Transient Response • Line Regulation typically at 0.015% • Load Regulation typically at 0.1% Applications • Internal thermal limiting • Adjustable Output Voltage or Fixed 2.5V, 2.85V, 3.3V, 5V • SCSI-2 Active Terminator • Standard 3-Pin Power Packages • Post Regulator for Switching Supply • Battery Chargers • Constant-Current Regulators • PC Add-On Card Functional Block Diagram VIN VREF 1.25V + + GM -- Case: TO-220AB, TO-263AB (D2PAK), TO-252 (DPAK) and SOT-223 Current Amp High temperature soldering guaranteed: Thermal Limit 55µA Mechanical Data 260°C/10 seconds at terminals Current Limit For fixed voltage device ADJ Document Number 74802 20-Feb-02 VOUT Case outlines are on the back page GND www.vishay.com 1 GS1117 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 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 Unit VREF TJ = 25°C 0°C ≤ TJ ≤ 125°C 2.65V ≤ VIN ≤ 7V 10mA ≤ Io ≤ 800mA 1.238 1.225 1.250 1.250 1.262 1.275 V V Output Voltage VOUT GS1117-2.5, VIN = 5V GS1117-2.85, VIN = 5V GS1117-3.3, VIN = 5V GS1117-5, VIN = 7V GS1117 0°C ≤ TJ ≤ 125°C 2.65V ≤ VIN ≤ 7V 10mA ≤ Io ≤ 800mA 2.48 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 V V V V Line Regulation REGline 2.65V ≤ VIN ≤ 7V TJ = 25°C 0°C ≤ TJ ≤ 125°C 0.015 0.02 0.2 0.2 % VO % VO Load Regulation REGload 10mA ≤ Io ≤ 800mA TJ = 25°C 0°C ≤ TJ ≤ 125°C 0.1 0.2 0.3 0.4 % VO % VO VDROP 0°C ≤ TJ ≤ 125°C Io = 800mA Io = 500mA Io = 100mA 1.2 1.19 1.15 1.4 1.35 1.30 V V V Reference Voltage Dropout Voltage 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: GS1117-2.5 (3.9V -7.0V), GS1117-2.85 (4.25V - 7.0V), GS1117 - 3.3 (4.75V - 7.0V), GS1117-5 (6.4V - 7.0V). (2) To maintain the specified junction temperatures, low duty cycle pulse testing is required for most parameters. www.vishay.com 2 Document Number 74802 20-Feb-02 GS1117 Vishay Semiconductors formerly General Semiconductor Electrical Characteristics (1) Parameter TJ = 25°C (2) , VIN = 5V, Io = 10mA unless otherwise noted. Symbol Test Conditions Min Io 0°C ≤ TJ ≤ 125°C 0.85 Iadj 2.65 ≤ Vin ≤ 7V 10mA ≤ Io ≤ 800mA 0°C ≤ TJ ≤ 125°C 55 120 µA ∆Iadj 2.65 ≤ Vin ≤ 7V 10mA ≤ Io ≤ 800mA 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 10 mA Quiescent Current Fixed Voltage Version IQ 0°C ≤ TJ ≤ 125°C 10 14 mA RMS Output Noise 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 Output Current Adjust Pin Current Adjust Pin Current Change Temperature Stability Minimum Load Current Adjustable Version Long Term Stability Typ Max Unit A 60 %VO 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. (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 GS1117-2.5 GS1117-2.85 GS1117-3.3 GS1117-5 + 2 1 Fixed Voltage Regulator VOUT VIN 5V 3 GS1117 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 74802 20-Feb-02 www.vishay.com 3 GS1117 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 1.30 IOUT = 800mA 1.4 1.25 TJ = 0°C 1.2 TJ = 50°C 1.0 TJ = 125°C 0.8 0.6 0.4 Dropout Voltage (V) Minimum Differential Voltage (V) 1.6 0.2 0.0 1.20 1.15 1.10 1.05 200 0 400 600 800 0 1000 20 40 Fig. 3 – Minimum Load Current (Adjustable Version) 100 120 140 Fig. 4 – Adjust Pin Current 100 5 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 (%) 80 Ambient Temperature (°C) Output Current (mA) Minimum Operating Current (mA) 60 0.8 0.4 0.0 --0.4 --0.8 COUT = 10µF 60 COUT = 25µF 50 40 30 COUT = 10µF --1.2 20 --1.6 --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 74802 20-Feb-02 GS1117 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 GS1117 Cxx-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 74802 20-Feb-02 www.vishay.com 5 GS1117 Vishay Semiconductors formerly General Semiconductor Case Outlines SOT-223 TO-252 (DPAK) 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. 13° ±3° 1.27 1.02 0.35 0.24 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 74802 20-Feb-02