GS2911 300mA CMOS Positive LDO Voltage Regulator Product Description The GS2911 is a positive voltage output, three-pin regulator that provides a high current even when the input/output voltage differential is small. Low power consumption and high accuracy is achieved through CMOS and laser trimming technologies. The GS2911 consists of a high-precision voltage reference, an error correction circuit, and a current limited output driver. Transient response to load variations has improved in comparison to the existing series. TO-92 and SOT-89 packages are available. Features Applications Maximum output current: 250mA (within Wireless Communication Systems the Battery Powered Systems maximum power dissipation, VOUT=5.0V) Palmtops Output voltage: 2.0V to 6.0V in 0.1V Portable Cameras and Video Recorders increments (1.1V to 1.9V for custom Voltage Regulator for Microprocessor products) Voltage Regulator for CD-ROM Drivers, Highly accurate: Output voltage ± 2% LAN Cards, 56K Modem (±1% for semi-custom products) Low power consumption: Typ. 2.0µA at VOUT = 5.0V Output voltage temperature coefficient 0.1%/V: Typ. ± 100ppm/℃ Input stability: Typ. 2.0%/V Small input/output differential: IOUT = 100mA at VOUT = 5.0V with a 0.12V differential. SOT-89 and TO-92 packages are available www.globaltechsemi.com 1 GS2911 GS2911 Globaltech Semiconductor Block Diagram Vin Vout Current Limiter + Voltage Reference Vss Package and Pin Assignments GS2911YXX (SOT-89) GS2911NXX (TO-92) 1 1 2 2 3 3 Pin1 = GND Pin1 = GND Pin2 = VIN Pin2 = VIN Pin3 = VOUT Pin3 = VOUT Ordering Information SOT-89 TO-92 Output GS2911Y15 GS2911N15 1.5V GS2911Y18 GS2911N18 1.8V GS2911Y20 GS2911N20 2.0V GS2911Y25 GS2911N25 2.5V GS2911Y33 GS2911N33 3.3V GS2911Y50 GS2911N50 5.0V *For additional available fixed voltages contact factory. *Add “F” means lead free part. www.globaltechsemi.com 2 GS2911 GS2911 Globaltech Semiconductor Absolute Maximum Ratings Parameter Symbol Ratings Input Voltage VIN 12V Output Current IOUT 500 mA Output Voltage VOUT Vss-0.3 to VIN+0.3 PD 500 mW Continuous Total Power Dissipation TO-92 SOT-89 550 mW Operating Ambient Temperature Topr 0℃ to 80℃ Storage temperature Range Tstg -40℃ to 125℃ Lead Temperature (10 sec) TLEAD 260℃ Electrical Characteristics Parameter VOUT(T) =2.0 (Note 1) Symbol Conditions VOUT (E) IOUT = 40mA (Note 2) VIN = 3.0V Output voltages Min Typ. Max Unit 1.960 2.000 2.040 V VIN = 3.0V Maximum output current IOUT max 100 mA VOUT(E) ≧ 1.8V VIN = 3.0V Load stability 45 90 mV IOUT=60mA 180 360 mV IOUT=120mA 400 700 mV ISS VIN = 3.0V 1.0 100 µA △VOUT IOUT = 40mA 0.2 0.3 %/V △VIN * △VOUT 3.0V≦VIN≦10.0V 10 V △VOUT 1mA ≦IOUT ≦60mA Input-Output Vdif Voltage differential (Note 3) Supply current Line regulation Input voltage VIN Output voltage △VOUT IOUT = 40mA Temperature characteristics △Topr * △VOUT -40℃≦Topr≦85℃ ±100 www.globaltechsemi.com 3 ppm/℃ GS2911 GS2911 Globaltech Semiconductor Electrical Characteristics Parameter VOUT(T) =2.5V (Note 1) Symbol Conditions VOUT (E) IOUT = 40mA (Note 2) VIN = 3.5V Output voltages Min Typ. Max Unit 2.450 2.500 2.550 V VIN = 3.5V Maximum output current IOUT max 150 mA VOUT(E) ≧ 2.25V VIN = 3.5V Load stability 45 90 mV IOUT=80mA 180 360 mV IOUT=160mA 400 700 mV Iss VIN = 3.5V 1.0 100 µA △VOUT IOUT = 40mA 0.2 0.3 %/V △VIN * △VOUT 3.5V≦VIN≦10.0V 10 V △VOUT 1mA ≦IOUT ≦80mA Input-Output Vdif Voltage differential (Note 3) Supply current Line regulation Input voltage VIN Output voltage △VOUT IOUT = 40mA Temperature characteristics △Topr * △VOUT -40℃≦Topr≦85℃ ppm/℃ ±100 Electrical Characteristics Parameter VOUT(T) =3.3 (Note 1) Symbol Conditions VOUT (E) IOUT = 40mA (Note 2) VIN = 4.3V Output voltages Min Typ. Max Unit 3.234 3.3 3.366 V VIN = 4.3V Maximum output current IOUT max 165 mA VOUT(E) ≧ 2.97V VIN = 4.3V Load stability 45 90 mV IOUT=160mA 400 700 mV Iss VIN = 4.3V 1.0 100 µA △VOUT IOUT = 40mA 0.2 0.3 %/V △VIN * △VOUT 4.3V≦VIN≦10.0V 10 V △VOUT 1mA ≦IOUT ≦80mA Input-Output Vdif Voltage differential (Note 3) Supply current VIN = 4.3V Line regulation Input voltage VIN Output voltage △VOUT www.globaltechsemi.com IOUT = 40mA 4 ±100 ppm/℃ GS2911 GS2911 Globaltech Semiconductor Temperature characteristics △Topr * △VOUT Electrical Characteristics Parameter -40℃≦Topr≦125℃ VOUT(T) =5.0 (Note 1) Symbol Conditions VOUT(E) IOUT = 40mA (Note 2) VIN = 6.0V Output voltages Min Typ Max Unit 4.900 5.000 5.100 V VIN = 6.0V Maximum output current IOUT max ∆VOUT Load stability 165 mA VOUT(E) ≥ 5.0V VIN = 6.0V 45 90 mV 1mA ≤ IOUT ≤80mA Input-Output Vdif VIN = 6.0V Voltage differential (Note 3) Vdif IOUT =200mA 380 600 mV Supply current Iss VIN = 6.0V 1.0 100 µA ∆VOUT IOUT = 40mA 0.2 0.3 %/V ∆VINi∆VOUT 4.3V ≤ VIN ≤ 10.0V 10 V Line regulation Input voltage VIN Output voltage ∆VOUT IOUT = 40mA Temperature characteristics ∆Topri∆VOUT -40℃ ≤ Topr ≤125℃ ±100 ppm/℃ Note1. VOUT(T) = Specified output voltage. Note2. VOUT(E) = Effective output voltage (i.e. the output voltage when “ VOUT(T)+1.0V” is provided at the VIN pin while maintaining a certain IOUT value.) Note3. Vdif = (VIN 1 (Note 4) – VOUT (E)) Note4. VIN 1 = The input voltage at the time 98% of VOUT(E) is output (input voltage has been gradually reduced). Typical Performance Characteristics Output Voltage vs. Output Current GS2911 (3.3V) Topr =25℃ 3. 3 - 30℃ 80℃ 3. 2 3. 1 OUTPUT VOLTAGE:VOUT(V) 3. 4 Output Voltage:VOUT (V) GS2911 (5V) VIN=4.3V CIN=1μ F(Tantalum), CL=1μ F(Tantalum) VIN=6V CIN=1μ F(Tantalum), CL=1μ F(Tantalum) 5. 1 - 40℃ 5. 0 4. 9 Topr =25℃ 85℃ 4. 8 4. 7 3. 0 0 20 40 60 0 80 100 120 140 160 180 Output Current IOUT (mA) www.globaltechsemi.com 20 40 60 80 100 120 140 160 180 OUTPUT CURRENT: IOUT(mA) 5 GS2911 GS2911 Globaltech Semiconductor Output Voltage vs. Input Voltage GS2911 (5V) Topr=25℃ CIN=1μ F(Tantalum), CL=1μ F(Tantalum) 3. 5 3. 3 OUTPUT VOLTAGE : VOUT (V) Output Voltage VOUT(V) GS2911 (3.3V) IOUT=1mA 40mA 3. 1 2. 9 10mA 2. 7 2. 5 2. 8 3. 8 3. 3 Topr=25℃ CI N=1μ F(Tant al um), CL=1μ F(Tant al um) 5. 2 5. 0 IOUT=1mA 40mA 4. 8 4. 6 10mA 4. 4 4. 2 4. 5 3. 40 Topr=25℃ CIN=1μ F(Tantalum), CL=1μ F(Tantalum) IOUT=1mA,10mA 3. 35 3. 30 3. 25 40mA 3. 20 3. 15 3 4 5 6 7 8 9 5. 5 5. 0 INPUT VOLTAGE : VIN (V) OUTPUT VOLTAGE:VOUT(V) Output Voltage VOUT (V) Input Voltage VIN(V) 10 Input Voltage VIN (V) Topr=25℃ CIN=1μ F(Tantalum), CL=1μ F(Tantalum) 5. 10 5. 05 IOUT=1mA 5. 00 40mA 4. 95 10mA 4. 90 4. 85 5 6 7 8 9 10 INPUT VOLTAGE:VIN(V) Input/Output Voltage Differential vs. Output Current 1. 0 GS2911 (5V) INPUT/OUTPUT VOLTAGE DIFF. :Vdif (V) INPUT/OUTPUT VOLTAGE DIFF. :Vdif (V) GS2911 (3.3V) CIN=1μ F(Tantalum), CL=1μ F(Tantalum) 0. 8 0. 6 Topr =25℃ 0. 4 0. 2 - 30℃ 0. 0 - 0. 2 80℃ 0 20 40 60 80 100 120 140 160 180 OUTPUT CURRENT : IOUT (mA) www.globaltechsemi.com 6 1. 0 CI N=1μ F(Tant al um), CL=1μ F(Tant al um) 0. 8 0. 6 0. 4 Topr=25℃ 85℃ 0. 2 0. 0 -0. 2 -40℃ 0 20 40 60 80 100120140160180 OUTPUT CURRENT : IOUT (mA) GS2911 GS2911 Globaltech Semiconductor Supply Current vs. Input Voltage GS2911 (5V) 2. 50 2. 25 80℃ Topr=25℃ 2. 00 -30℃ 1. 75 1. 50 SUPPLY CURRENT:Iss(μ A) Supply Current Iss(μ A) GS2911 (3.3V) 3 4 5 6 7 8 9 10 Input Voltage VIN(V) 3 Topr =25℃ 85℃ 2 - 40℃ 1 0 0 2 4 6 8 10 INPUT VOLTAGE:V IN(V) Load Transient Response 4.3 3.3 200 160 Output Voltage 2.3 120 80 Output Current 1.3 40mA 1mA 0.3 TIME(2msec/div) www.globaltechsemi.com 40 0 7 VIN=6V, CL=1μ F(Tantalum) 6 160 Output Voltage 5 2 40mA Output Current 1mA 40 0 TIME(2msec/div) 7 120 80 4 3 200 OUTPUT CURRENT:IOUT(mA) VIN=4.3V, CL=1μ F(Tantalum) OUTPUT VOLTAGE:VOUT(V) 5.3 GS2911 (5V) OUTPUT CURRENT:IOUT(mA) OUTPUT VOLTAGE:VOUT(V) GS2911 (3.3V) GS2911 GS2911 Globaltech Semiconductor Typical Application Circuits Open Vin Vout Vin Vin A Vin Vss 1uF 1uF (Trantalum) (Trantalum) V Vout Vss A Notes on Use 1. There is a possibility that oscillation may occur as a result of the impedance present between the power supply and the IC’s input. Where impedance is 10Ω or more, please use a capacitor (CIN) of at least 1µF. With a large output current, operations can be stabilised by increasing capacitor size (CIN). If CIN is small and capacitor size (CL) is increased, there is a possibility of oscillation due to input impedance. In such cases, either increasing the size of CIN or decreasing the size of CL can stabilize operations. 2. Please ensure that output current (IOUT) is less than PD + (VIN - VOUT) and does not exceed the stipulated Continuous Total Power Dissipation value (PD). 3. Should you wish to increase output current (IOUT) and/or have the capability to exceed the stipulated PD value, using a current boost circuit (similar to the one shown below) is likely to lead to oscillation. With such applications, we recommend use of a boost type voltage regulator, such as the GS2911 series. www.globaltechsemi.com 8 GS2911 GS2911 Globaltech Semiconductor Package Dimension SOT-89 PLASTIC PACKAGE Symbol Dimensions In Millimeters Dimensions In Inches Min Max Min Min A 1.450 1.550 0.570 0.061 b 0.440 0.480 0.017 0.019 C 0.360 0.400 0.014 0.016 E 4.450 4.550 0.175 0.179 E2 1.500 1.700 0.059 0.067 E3 1.400Ref 0.055Ref e 1.500BSC 0.059BSC e1 3.000BSC 0.118BSC H 4.150 4.250 0.163 0.167 D 2.450 2.550 0.096 0.100 L 0.900 1.100 0.035 0.043 www.globaltechsemi.com 9 GS2911 GS2911 Globaltech Semiconductor TO-92 PLASTIC PACKAGE 18.0+1.6 or 18.0-0.5 0+1.0 0+1.0 21.0max 1.0max 16±0.5 6.0±0.5 9.0+0.5 4.0±0.2 2.5+0.4 or 2.5-0.1 6.35±0.5 12.7±0.3 www.globaltechsemi.com 10 GS2911 GS2911 Globaltech Semiconductor Information furnished is believed to be accurate and reliable. However Globaltech Semiconductor assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties, which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Globaltech Semiconductor. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information without express written approval of Globaltech Semiconductor. www.globaltechsemi.com 11 GS2911