GS2911

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 Maximum output current: 250mA (within the maximum power dissipation, VOUT=5.0V) Output voltage: 2.0V to 6.0V in 0.1V increments (1.1V to 1.9V for custom products) Highly accurate: Output voltage ± 2% (±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 available and TO-92 packages are Applications Wireless Communication Systems Battery Powered Systems Palmtops Portable Cameras and Video Recorders Voltage Regulator for Microprocessor Voltage Regulator for CD-ROM Drivers, LAN Cards, 56K Modem w ww.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 2 3 1 2 3 Pin1 = GND Pin2 = VIN Pin3 = VOUT Pin1 = GND Pin2 = VIN Pin3 = VOUT Ordering Information SOT-89 GS2911Y15 GS2911Y18 GS2911Y20 GS2911Y25 GS2911Y33 GS2911Y50 *Add “F” means lead free part. w ww.globaltechsemi.com 2 GS2911 TO-92 GS2911N15 GS2911N18 GS2911N20 GS2911N25 GS2911N33 GS2911N50 Output 1.5V 1.8V 2.0V 2.5V 3.3V 5.0V *For additional available fixed voltages contact factory. GS2911 Globaltech Semiconductor Absolute Maximum Ratings Parameter Input Voltage Output Current Output Voltage Continuous Total Power Dissipation TO-92 SOT-89 Operating Ambient Temperature Storage temperature Range Lead Temperature (10 sec) Topr Tstg TLEAD PD 500 mW 550 mW 0℃ to 80℃ -40℃ to 125℃ 260℃ Symbol VIN IOUT VOUT Ratings 12V 500 mA Vss-0.3 to VIN+0.3 Electrical Characteristics Parameter Symbol VOUT (E) Output voltages (Note 2) VOUT(T) =2.0 (Note 1) Conditions IOUT = 40mA 1.960 VIN = 3.0V VIN = 3.0V 2.000 2.040 V Min Typ. Max Unit Maximum output current IOUT max VOUT(E) ≧ 1.8V VIN = 3.0V 100 mA Load stability △VOUT 1mA ≦IOUT ≦60mA 45 90 mV Input-Output Voltage differential (Note 3) Supply current Vdif IOUT=60mA IOUT=120mA 180 400 1.0 360 700 100 mV mV µA ISS △VOUT VIN = 3.0V IOUT = 40mA Line regulation △VIN * △VOUT Input voltage Output voltage Temperature characteristics VIN △VOUT △Topr * △VOUT IOUT = 40mA 3.0V≦VIN≦10.0V 0.2 0.3 %/V 10 V ±100 -40℃≦Topr≦85℃ ppm/℃ w ww.globaltechsemi.com 3 GS2911 GS2911 Globaltech Semiconductor Electrical Characteristics Parameter Symbol VOUT (E) Output voltages (Note 2) VOUT(T) =2.5V (Note 1) Conditions IOUT = 40mA 2.450 VIN = 3.5V VIN = 3.5V 2.500 2.550 V Min Typ. Max Unit Maximum output current IOUT max VOUT(E) ≧ 2.25V VIN = 3.5V 150 mA Load stability △VOUT 1mA ≦IOUT ≦80mA 45 90 mV Input-Output Voltage differential (Note 3) Supply current Vdif IOUT=80mA IOUT=160mA 180 400 1.0 360 700 100 mV mV µA Iss △VOUT VIN = 3.5V IOUT = 40mA Line regulation △VIN * △VOUT Input voltage Output voltage Temperature characteristics VIN △VOUT △Topr * △VOUT IOUT = 40mA 3.5V≦VIN≦10.0V 0.2 0.3 %/V 10 V ±100 -40℃≦Topr≦85℃ ppm/℃ Electrical Characteristics Parameter Symbol VOUT (E) Output voltages (Note 2) VOUT(T) =3.3 (Note 1) Conditions IOUT = 40mA 3.234 VIN = 4.3V VIN = 4.3V 3.3 3.366 V Min Typ. Max Unit Maximum output current IOUT max VOUT(E) ≧ 2.97V VIN = 4.3V 165 mA Load stability △VOUT 1mA ≦IOUT ≦80mA 45 90 mV Input-Output Voltage differential (Note 3) Supply current Vdif VIN = 4.3V IOUT=160mA 400 1.0 700 100 mV µA Iss △VOUT VIN = 4.3V IOUT = 40mA Line regulation △VIN * △VOUT Input voltage Output voltage VIN △VOUT IOUT = 40mA 4.3V≦VIN≦10.0V 0.2 0.3 %/V 10 ±100 V ppm/℃ w ww.globaltechsemi.com 4 GS2911 GS2911 Globaltech Semiconductor Temperature characteristics △Topr * △VOUT -40℃≦Topr≦125℃ Electrical Characteristics Parameter Symbol VOUT(E) Output voltages (Note 2) VOUT(T) =5.0 (Note 1) Conditions IOUT = 40mA 4.900 VIN = 6.0V VIN = 6.0V 5.000 5.100 V Min Typ Max Unit Maximum output current IOUT max 165 VOUT(E) ≥ 5.0V VIN = 6.0V 45 1mA ≤ IOUT ≤80mA VIN = 6.0V IOUT =200mA VIN = 6.0V IOUT = 40mA 0.2 0.3 380 1.0 600 100 90 mA Load stability ∆VOUT mV Input-Output Voltage differential (Note 3) Supply current Vdif Vdif Iss ∆VOUT mV µA Line regulation ∆VINi∆VOUT Input voltage Output voltage Temperature characteristics VIN ∆VOUT ∆Topri∆VOUT IOUT = 40mA -40℃ ≤ Topr ≤125℃ 4.3V ≤ VIN ≤ 10.0V %/V 10 V ±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) 3. 4 VIN=4.3V CIN=1μ F(Tantalum), CL=1μ F(Tantalum) OUTPUT VOLTAGE:VOUT(V) 5. 1 5. 0 4. 9 GS2911 (5V) VIN=6V CIN=1μ F(Tantalum), CL=1μ F(Tantalum) Output Voltage:VOUT (V) 3. 3 - 30℃ 3. 2 3. 1 3. 0 0 20 40 60 Topr =25℃ 80℃ - 40℃ Topr =25℃ 4. 8 4. 7 85℃ 80 100 120 140 160 180 0 20 40 60 80 100 120 140 160 180 Output Current IOUT (mA) OUTPUT CURRENT: IOUT(mA) w ww.globaltechsemi.com 5 GS2911 GS2911 Globaltech Semiconductor Output Voltage vs. Input Voltage GS2911 (3.3V) GS2911 (5V) OUTPUT VOLTAGE : VOUT (V) 5. 2 5. 0 T opr=25℃ C N F ant al um C I =1μ (T ), L=1μ F ant al um (T ) Output Voltage VOUT(V) 3. 5 3. 3 3. 1 2. 9 2. 7 Topr=25℃ CIN=1μ F(Tantalum), CL=1μ F(Tantalum) IOUT=1mA 40mA IOUT=1mA 4. 8 4. 6 4. 4 4. 2 4. 5 40mA 10mA 3. 3 3. 8 10mA 2. 5 2. 8 5. 0 5. 5 Input Voltage VIN(V) Topr=25℃ CIN=1μ F(Tantalum), CL=1μ F(Tantalum) IOUT=1mA,10mA INPUT VOLTAGE : VIN (V) Output Voltage VOUT (V) 3. 40 3. 35 3. 30 3. 25 3. 20 3. 15 OUTPUT VOLTAGE:VOUT(V) 5. 10 5. 05 5. 00 4. 95 4. 90 4. 85 5 Topr=25℃ CIN=1μ F(Tantalum), CL=1μ F(Tantalum) IOUT=1mA 40mA 10mA 40mA 3 4 5 6 7 8 9 10 Input Voltage VIN (V) 6 7 8 9 10 INPUT VOLTAGE:VIN(V) Input/Output Voltage Differential vs. Output Current GS2911 (3.3V) INPUT/OUTPUT VOLTAGE DIFF. :Vdif (V) 1. 0 0. 8 0. 6 0. 4 0. 2 0. 0 - 0. 2 Topr =25℃ 80℃ - 30℃ 0 20 40 60 80 100 120 140 160 180 OUTPUT CURRENT : IOUT (mA) CIN=1μ F(Tantalum), CL=1μ F(Tantalum) GS2911 (5V) INPUT/OUTPUT VOLTAGE DIFF. :Vdif (V) 1. 0 0. 8 0. 6 0. 4 0. 2 0. 0 -0. 2 -40℃ 0 20 40 60 80 100120140160180 OUTPUT CURRENT : IOUT (mA) T opr=25℃ 85℃ C N F ant al um C I =1μ (T ), L=1μ F ant al um (T ) w ww.globaltechsemi.com 6 GS2911 GS2911 Globaltech Semiconductor Supply Current vs. Input Voltage GS2911 (3.3V) GS2911 (5V) SUPPLY CURRENT:Iss(μ A) Supply Current Iss(μ A) 2. 50 2. 25 2. 00 1. 75 1. 50 3 2 1 0 Topr =25℃ 85℃ - 40℃ 80℃ T 25℃ opr= -30℃ 0 2 4 6 8 10 3 4 5 6 7 8 9 10 Input Voltage VIN(V) INPUT VOLTAGE:V IN(V) Load Transient Response GS2911 (3.3V) OUTPUT CURRENT:IOUT(mA) GS2911 (5V) OUTPUT VOLTAGE:VOUT(V) 200 160 OUTPUT VOLTAGE:VOUT(V) 5.3 4.3 3.3 2.3 7 6 5 4 3 2 200 160 O utput Voltage 120 80 Output Voltage 120 80 A 1.3 40m 1m A 0.3 TIM E(2m sec/div) O utput Current 40 0 40mA 1mA Output Current 40 0 TIME(2msec/div) w ww.globaltechsemi.com 7 GS2911 OUTPUT CURRENT:IOUT(mA) VIN=4.3V, CL=1μ F(Tantalum ) VIN=6V, CL=1μ F(Tantalum) GS2911 Globaltech Semiconductor Typical Application Circuits Open Vin Vout Vin A Vin Vss 1uF 1uF (Trantalum) (Trantalum) V Vin 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. w ww.globaltechsemi.com 8 GS2911 GS2911 Globaltech Semiconductor Package Dimension SOT-89 PLASTIC PACKAGE Symbol A b C E E2 E3 e e1 H D L Dimensions In Millimeters Min 1.450 0.440 0.360 4.450 1.500 1.400Ref 1.500BSC 3.000BSC 4.150 2.450 0.900 4.250 2.550 1.100 Max 1.550 0.480 0.400 4.550 1.700 Dimensions In Inches Min 0.570 0.017 0.014 0.175 0.059 0.055Ref 0.059BSC 0.118BSC 0.163 0.096 0.035 0.167 0.100 0.043 Min 0.061 0.019 0.016 0.179 0.067 w ww.globaltechsemi.com 9 GS2911 GS2911 TO-92 PLASTIC PACKAGE Globaltech Semiconductor 0+1.0 0+1.0 18.0+1.6 or 18.0-0.5 1.0max 9.0+0.5 21.0max 16±0.5 6.0±0.5 4.0±0.2 6.35±0.5 12.7±0.3 2.5+0.4 or 2.5-0.1 w ww.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. w ww.globaltechsemi.com 11 GS2911