G916-480T1U

Global Mixed-mode Technology Inc. G916 300mA High PSRR, Low Noise, LDO Regulators Features Low, 90µA No-Load Supply Current Guaranteed 300mA Output Current Dropout Voltage is 200mV @ 150mA Load PSRR=65dB @ 120Hz; 55dB @ 1kHz Over-Temperature Protection and Short-Circuit Protection Fixed Mode: 1.20V~5.00V (G916-XXX) Adjustable Mode: from 1.25V to 5.50V (G916) Max. Supply Current in Shutdown Mode < 1µA Low Output Noise at 28µVRMS with bypass Capacitor Stable with low cost ceramic capacitors General Description The G916 series is a low supply current, high PSRR, low noise, and low dropout linear regulator that comes in a space saving TSOT-23-5, SOT-23-5 package. The supply current at no-load is 90µA. In the shutdown mode, the maximum supply current is less than 1µA. Operating voltage range is from 2.5V to 6.0V. The over-current protection limit is set at 550mA typical. An over- temperature protection circuit is built-in in the Device to prevent thermal overload. These power saving features make the G916 series ideal for use in the battery-powered applications such as notebook computers, cellular phones, and PDA’s. The G916 has two modes of operation. When the SET pin is connected to ground, its output is a pre-set value: 3.3V. There is no external component needed. When an output other than the preset value is needed, two external resistors should be used as a voltage divider. The output voltage is then adjusted by the resistor ratio. G916-XXX is with fixed-mode output. The output voltage range is from 1.2V to 5.0V. Applications Notebook Computers Cellular Phones PDAs Digital still Camera and Video Recorders Hand-Held Devices Audio Codec Pin Configuration IN 1 5 OUT ＋ IN IN OUT R1 OUTPUT VOLTAGE G916 SHDN GND GND 2 G916 4 SET SET R2 COUT 1µF － BATTERY CIN 1µF SHDN 3 SOT-23-5、TSOT-23-5 Adjustable mode IN 1 5 OUT IN OUT OUTPUT VOLTAGE GND 2 G916-XXX BATTERY 4 BYP ＋C G916-XXX IN _ 1µF SHDN BYP GND COUT 1µF CBYP 10nF SHDN 3 SOT-23-5、TSOT-23-5 Fixed mode Ver: 1.7 Jan 25, 2006 TEL: 886-3-5788833 http://www.gmt.com.tw 1 Global Mixed-mode Technology Inc. Ordering Information ORDER NUMBER G916-250TOU G916-270TOU G916T1U G916-120T1U G916-330T1U G916 TEMP. RANGE -40°C~ +85°C -40°C~ +85°C -40°C~ +85°C -40°C~ +85°C -40°C~ +85°C ORDER NUMBER (Pb free) G916-250TOUf G916-270TOUf G916T1Uf G916-120T1Uf G916-330T1Uf MARKING VOLTAGE PACKAGE TSOT-23-5 TSOT-23-5 SOT-23-5 SOT-23-5 SOT-23-5 96ANx 2.50V 96APx 2.70V 16xx Adjustable 96AAx 1.20V 6Axx 3.30V For other output voltage, please contact us at sales@gmt.com.tw Note: TO: TSOT-23-5 T1: SOT-23-5 U: Tape & Reel Selector Guide ORDER NUMBER G916TOU G916-120TOU G916-130TOU G916-140TOU G916-150TOU G916-160TOU G916-170TOU G916-180TOU G916-190TOU G916-200TOU G916-210TOU G916-220TOU G916-230TOU G916-240TOU G916-250TOU G916-260TOU G916-270TOU G916-280TOU G916-285TOU G916-290TOU G916-300TOU G916-310TOU G916-315TOU G916-320TOU G916-330TOU G916-340TOU G916-350TOU G916-360TOU G916-370TOU G916-380TOU G916-390TOU G916-400TOU G916-410TOU G916-420TOU G916-430TOU G916-440TOU G916-450TOU G916-460TOU G916-470TOU G916-475TOU G916-480TOU G916-490TOU G916-500TOU TO: TSOT-23-5 ORDER NUMBER (Pb free) G916TOUf G916-120TOUf G916-130TOUf G916-140TOUf G916-150TOUf G916-160TOUf G916-170TOUf G916-180TOUf G916-190TOUf G916-200TOUf G916-210TOUf G916-220TOUf G916-230TOUf G916-240TOUf G916-250TOUf G916-260TOUf G916-270TOUf G916-280TOUf G916-285TOUf G916-290TOUf G916-300TOUf G916-310TOUf G916-315TOUf G916-320TOUf G916-330TOUf G916-340TOUf G916-350TOUf G916-360TOUf G916-370TOUf G916-380TOUf G916-390TOUf G916-400TOUf G916-410TOUf G916-420TOUf G916-430TOUf G916-440TOUf G916-450TOUf G916-460TOUf G916-470TOUf G916-475TOUf G916-480TOUf G916-490TOUf G916-500TOUf OUTPUT VOLTAGE (V) Adjustable 1.20 1.30 1.40 1.50 1.60 1.70 1.80 1.90 2.00 2.10 2.20 2.30 2.40 2.50 2.60 2.70 2.80 2.85 2.90 3.00 3.10 3.15 3.20 3.30 3.40 3.50 3.60 3.70 3.80 3.90 4.00 4.10 4.20 4.30 4.40 4.50 4.60 4.70 4.75 4.80 4.90 5.00 MARKING 16xx 96AAx 96ABx 96ACx 96ADx 96AEx 96AFx 96AGx 96AHx 96AIx 96AJx 96AKx 96ALx 96AMx 96ANx 96AOx 96APx 96AQx 96ARx 96ASx 96ATx 96AUx 96AVx 96AWx 6Axx 96AYx 96AZx 96BAx 96BBx 96BCx 96BDx 96BEx 96BFx 96BGx 96BHx 96BIx 96BJx 96BKx 96BLx 96BMx 96BNx 96BOx 96BPx Ver: 1.7 Jan 25, 2006 TEL: 886-3-5788833 http://www.gmt.com.tw 2 Global Mixed-mode Technology Inc. Selector Guide ORDER NUMBER G916T1U G916-120T1U G916-130T1U G916-140T1U G916-150T1U G916-160T1U G916-170T1U G916-180T1U G916-190T1U G916-200T1U G916-210T1U G916-220T1U G916-230T1U G916-240T1U G916-250T1U G916-260T1U G916-270T1U G916-280T1U G916-285T1U G916-290T1U G916-300T1U G916-310T1U G916-315T1U G916-320T1U G916-330T1U G916-340T1U G916-350T1U G916-360T1U G916-370T1U G916-380T1U G916-390T1U G916-400T1U G916-410T1U G916-420T1U G916-430T1U G916-440T1U G916-450T1U G916-460T1U G916-470T1U G916-475T1U G916-480T1U G916-490T1U G916-500T1U T1: SOT-23-5 G916 MARKING 16xx 96AAx 96ABx 96ACx 96ADx 96AEx 96AFx 96AGx 96AHx 96AIx 96AJx 96AKx 96ALx 96AMx 96ANx 96AOx 96APx 96AQx 96ARx 96ASx 96ATx 96AUx 96AVx 96AWx 6Axx 96AYx 96AZx 96BAx 96BBx 96BCx 96BDx 96BEx 96BFx 96BGx 96BHx 96BIx 96BJx 96BKx 96BLx 96BMx 96BNx 96BOx 96BPx ORDER NUMBER (Pb free) G916T1Uf G916-120T1Uf G916-130T1Uf G916-140T1Uf G916-150T1Uf G916-160T1Uf G916-170T1Uf G916-180T1Uf G916-190T1Uf G916-200T1Uf G916-210T1Uf G916-220T1Uf G916-230T1Uf G916-240T1Uf G916-250T1Uf G916-260T1Uf G916-270T1Uf G916-280T1Uf G916-285T1Uf G916-290T1Uf G916-300T1Uf G916-310T1Uf G916-315T1Uf G916-320T1Uf G916-330T1Uf G916-340T1Uf G916-350T1Uf G916-360T1Uf G916-370T1Uf G916-380T1Uf G916-390T1Uf G916-400T1Uf G916-410T1Uf G916-420T1Uf G916-430T1Uf G916-440T1Uf G916-450T1Uf G916-460T1Uf G916-470T1Uf G916-475T1Uf G916-480T1Uf G916-490T1Uf G916-500T1Uf OUTPUT VOLTAGE (V) Adjustable 1.20 1.30 1.40 1.50 1.60 1.70 1.80 1.90 2.00 2.10 2.20 2.30 2.40 2.50 2.60 2.70 2.80 2.85 2.90 3.00 3.10 3.15 3.20 3.30 3.40 3.50 3.60 3.70 3.80 3.90 4.00 4.10 4.20 4.30 4.40 4.50 4.60 4.70 4.75 4.80 4.90 5.00 Ver: 1.7 Jan 25, 2006 TEL: 886-3-5788833 http://www.gmt.com.tw 3 Global Mixed-mode Technology Inc. Absolute Maximum Ratings IN to GND. . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7V Output Short-Circuit Duration . . . . . . . . . . . . .Infinite SET, BYP to GND . . . . . . . . . . . . . . . . . -0.3V to 7V SHDN to GND . . . . . . . . . . . . . . . . . . .-0.3V to 7V G916 SHDN to IN . . . . . . . . . . . . . . . . . . . . .-7V to 0.3V OUT to GND . . . . . . . . . . . . . ..-0.3V to (VIN + 0.3V) Note (1): See Recommended Minimum Footprint Operating Temperature Range . . . . . . .-40°C to 85°C Junction Temperature . . . . . . . . . . . . . . . . . . . . . 150°C Thermal Resistance Junction to Ambient, (θJA) SOT-23-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . 240°C/W(1) TSOT-23-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . .196°C/W Storage Temperature Range . . . . . . . . .-65°C to 160°C Reflow Temperature (soldering, 10sec) . . . . . . . .260°C Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Electrical Characteristics (VIN =3.6V, V SHDN =VIN, TA =25°C, unless otherwise noted.) (Note 1) PARAMETER Input Voltage (Note 2) Output Voltage Accuracy (adjustable mode) Output Voltage Accuracy (fixed mode) Adjustable Output Voltage Range (Note 3) Maximum Output Current Current Limit (Note 4) Short Circuit Current Ground Pin Current ILIM Isc IQ VOUT=1.50V VOUT=1.80V VOUT=2.50V Dropout Voltage (Note 5) VDROP IOUT =300mA VOUT=3.00V VOUT=3.30V VOUT=4.75V VOUT=5.00V Line Regulation Load Regulation Ripple Rejection Output Voltage Noise (10Hz to 100kHz) ΔVLNR ΔVLDR PSRR en SET=GND, VIN=V(STD)+0.1V to 6.2V IOUT=10mA IOUT=10mA to 300mA F=120Hz, 0.45VP-P, IOUT=10mA COUT=1µF, IOUT=1mA, CBYP=10nF SYMBOL VIN VOUT VOUT VOUT CONDITION Variation from specified VOUT, IOUT=1mA VOUT ≥2.50V, IOUT =1mA 2.50V>VOUT ≥1.80V, IOUT=1mA 1.80V>VOUT ≥1.20V, IOUT=1mA MIN TYP MAX UNIT 2.5 -2 -2 -3 -4 VSET 300 400 ----------------------------------------550 280 90 1.36 1.10 0.58 0.41 0.36 0.25 0.24 6.0 2 2 3 4 5.5 --------1.7 1.4 0.8 0.5 0.5 0.5 0.5 %/V V V mA mA mA µA % V % 0.06 0.12 --65 28 0.02 %/mA ----dB µVRMS Ver: 1.7 Jan 25, 2006 TEL: 886-3-5788833 http://www.gmt.com.tw 4 Global Mixed-mode Technology Inc. Electrical Characteristics (continued) (VIN =3.6V, V SHDN =VIN, TA =25°C, unless otherwise noted.) (Note 1) PARAMETER SHUTDOWN SHDN Input Threshold SHDN Input Bias Current G916 MIN TYP MAX UNIT 1.5 ------0.003 0.2 --0.4 0.1 1 SYMBOL VIH VIL I SHDN IQSHDN CONDITION Regulator enabled Regulator shutdown V SHDN = VIN VOUT = 0V VIN = 2.5V to 5.5V, IOUT = 1mA VSET = 1.3V TA = +25°C TA = +25°C TA = +25°C TA = TMIN to TMAX TA = +25°C V µA µA ----- Shutdown Supply Current SET INPUT SET Reference Voltage (Note 3) SET Input Leakage Current (Note 3) THERMAL PROTECTION Thermal Shutdown Temperature Thermal Shutdown Hysteresis VSET ISET TSHDN ΔTSHDN 1.225 1.25 1.275 --------1.25 5 145 25 --30 ----- V nA °C °C Note 1: Limits is 100% production tested at TA= +25°C. Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible. Note 2: Guaranteed by line regulation test. Note 3: Adjustable mode only. Note 4: Not tested. For design purposes, the current limit should be considered 400mA minimum to 650mA maximum. Note 5: The dropout voltage is defined as (VIN-VOUT) when VOUT is 100mV below the target value of VOUT. The performance of every G916 part, see “Typical Performance Characteristics”. Ver: 1.7 Jan 25, 2006 TEL: 886-3-5788833 http://www.gmt.com.tw 5 Global Mixed-mode Technology Inc. Typical Performance Characteristics (VIN =5V, CIN=1µF, COUT=1µF, V SHDN = VIN, G916-475, TA =25°C, unless otherwise noted.) G916 Line Transient Load Transient Short Circuit Current 90 80 70 60 PSRR (dB) Ripple Rejection 10mA 300mA 50 40 30 20 10 0 0.01 100mA V IN=4V ; COUT=1µF ; CBYP =10nF ; V r=245mV 0.1 1 Frequency (KHz) 10 100 Turn-On Turn-Off Ver: 1.7 Jan 25, 2006 TEL: 886-3-5788833 http://www.gmt.com.tw 6 Global Mixed-mode Technology Inc. Typical Performance Characteristics (continued) Overcurrent Protection Characteristics 300 250 Dropout Voltage (mV) 200 150 100 50 0 0 50 100 150 IL ( mA) 200 TA =-25°C TA =85°C G916 Dropout Voltage vs. IL TA =25° C 250 300 Output Voltage vs. Temperature 5.2 5.1 5.0 Output Voltage (V) 4.9 4.8 4.7 4.6 4.5 4.4 4.3 4.2 V IN=5.0V V IN=5.5V IL=10mA Output Noise -25 -15 -5 5 15 25 35 45 55 65 75 85 Temperature ( ° C) Ver: 1.7 Jan 25, 2006 TEL: 886-3-5788833 http://www.gmt.com.tw 7 Global Mixed-mode Technology Inc. Pin Description G916 1 2 3 4 4 5 5 G916 PIN G916-XXX 1 2 3 NAME IN GND SHDN FUNCTION Regulator Input. Supply voltage can range from +2.5V to +6.0V. Bypass with 1µF to GND Ground. This pin also functions as a heatsink. Solder to large pads or the circuit board ground plane to maximize thermal dissipation. Active-Low Shutdown Input. A logic low reduces the supply current to less than 1µA. Connect to IN for normal operation. Feedback Input for Setting the Output Voltage. Connect to GND to set the output voltage to the preset output voltage. Connect to an external resistor divider for adjustable-output operation. This is a reference bypass pin. It should connect external 10nF capacitor to GND to reduce output noise. Bypass capacitor must be no less than 1nF. (CBYP≥ 1nF) Regulator Output. Sources up to 300mA. Bypass with a 1µF, ＜0.2Ω typical ESR capacitor to GND. SET BYP OUT Detailed Description The block diagram of the G916 is shown in Figure 1. It consists of an error amplifier, 1.25V bandgap reference, PMOS output transistor, internal feedback voltage divider, mode comparator, shutdown logic, over current protection circuit, and over temperature protection circuit. The mode comparator compares the SET pin voltage with an internal 350mV reference. If the SET pin voltage is less than 350mV, the internal feedback voltage divider’s central tap is connected to the non-inverting input of the error amplifier. The error amplifier compares non-inverting input with the 1.25V bandgap reference. If the feedback voltage is higher than 1.25V, the error amplifier’s output becomes higher so that the PMOS output transistor has a smaller gate-to-source voltage (VGS). This reduces the current carrying capability of the PMOS output transistor, as a result the output voltage decreases until the feedback voltage is equal to 1.25V. Similarly, when the feedback voltage is less than 1.25V, the error amplifier causes the output PMOS to source more current to pull the feedback voltage up to 1.25V. Thus, through this feedback action, the error amplifier, output PMOS, and the voltage dividers effectively form a unity-gain amplifier with the feedback voltage force to be the same as the 1.25V bandgap reference. The output voltage, VOUT, is then given by the following equation: VOUT = 1.25 (1 + R1/R2). (1) Alternatively, the relationship between R1 and R2 is given by: R1 = R2 (VOUT /1.25 - 1). (2) For the reasons of reducing power dissipation and loop stability, R2 is chosen to be 100KΩ. For G916, R1 is 164K, and the pre-set VOUT is 3.30V. When external voltage divider is used, as shown in Figure 2, the SET pin voltage will be larger than 350mV. The non-inverting input of the amplifier will be connected to the external voltage divider. However, the operation of the feedback loop is the same, so that the conditions of Equations 1 and 2 are still true. The output voltage is still given by Equation 1. For G916-XXX, adjust the internal reference and internal voltage divider. It provides a fixed mode output ranging from 1.2V to 5V. Ver: 1.7 Jan 25, 2006 TEL: 886-3-5788833 http://www.gmt.com.tw 8 Global Mixed-mode Technology Inc. G916 IN SHDN SHDN － ERROR AMP ＋ OVER CURRENT PROTECT & DYNAMIC FEEDBACK P OUT SET SHUTDOWN LOGIC － OVER TEMP. PROTECT 1.25V Vref R1 ＋ ＋ 350mV GND MODE COMPARATOR － R2 IN SHDN － ERROR AMP ＋ OVER CURRENT PROTECT & DYNAMIC FEEDBACK P OUT SHUTDOWN LOGIC R1 OVER TEMP. PROTECT 1.25V Vref BYP R2 GND Figure 1. Functional Diagram of Adjustable-mode & Fixed mode Ver: 1.7 Jan 25, 2006 TEL: 886-3-5788833 http://www.gmt.com.tw 9 Global Mixed-mode Technology Inc. OUTPUT VOLTAGE IN ＋ － BATTERY CIN 1µF OUT R1 G916 G916 SHDN GND SET R2 COUT 1µF RL mount device, heat sinking is accomplished by using the heat spreading capabilities of the PC board and its copper traces. In the case of a SOT-23-5 package, the thermal resistance is typically 240°C/Watt. (See Recommended Minimum Footprint). Refer to Figure 3a & 3b is the G916 valid operating region (Safe Operating Area) & refer to Figure 4 is maximum power dissipation of SOT-23-5. The die attachment area of the G916’s lead frame is connected to pin 2, which is the GND pin. Therefore, the GND pin of G916 can carry away the heat of the G916 die very effectively. To improve the maximum power providing capability, connect the GND pin to ground using a large ground plane near the GND pin. Figure 2. Adjustable Output Using External Feedback Resistors Over Current Protection The G916 uses a current sense-resistor to monitor the output current. A portion of the PMOS output transistor’s current is mirrored to a resistor such that the voltage across this resistor is proportional to the output current. Once the output current exceeds limit threshold, G916 would be protected with a limited output current. Further more, when the output is short to ground, the output current would be folded-back to a less limit. Over Temperature Protection To prevent abnormal temperature from occurring, the G916 has a built-in temperature monitoring circuit. When it detects the temperature is above 145°C, the output transistor is turned off. When the IC is cooled down to below 120°C, the output is turned on again. In this way, the G916 will be protected against abnormal junction temperature during operation. Shutdown Mode When the SHDN pin is connected a logic low voltage, the G916 enters shutdown mode. All the analog circuits are turned off completely, which reduces the current consumption to only the leakage current. The G916 output pass transistor would get into high impedance level. There is an internal discharge path to help to shorten discharge delay time. Operating Region and Power Dissipation Since the G916 is a linear regulator, its power dissipation is always given by P = IOUT (VIN – VOUT). The maximum power dissipation is given by: Applications Information Capacitor Selection and Regulator Stability Normally, use a 1µF capacitor on the input and a 1µF capacitor on the output of the G916. Larger input capacitor values and lower ESR provide better supply-noise rejection and transient response. A highervalue input capacitor (10µF) may be necessary if large, fast transients are anticipated and the device is located several inches from the power source. Power-Supply Rejection and Operation from Sources Other than Batteries The G916 is designed to deliver low dropout voltages and low quiescent currents in battery powered systems. Power-supply rejection is 65dB at low frequencies. As the frequency increases above 20kHz, the output capacitor is the major contributor to the rejection of power-supply noise. When operating from sources other than batteries, improve supply-noise rejection and transient response by increasing the values of the input and output capacitors, and using passive filtering techniques. Load Transient Considerations The G916 load-transient response graphs show two components of the output response: a DC shift of the output voltage due to the different load currents, and the transient response. Typical overshoot for step changes in the load current from 10mA to 300mA is 8mV. Increasing the output capacitor's value and decreasing its ESR attenuates transient spikes. Input-Output (Dropout) Voltage A regulator's minimum input-output voltage differential (or dropout voltage) determines the lowest usable supply voltage. In battery-powered systems, this will determine the useful end-of-life battery voltage. Because the G916 use a P-channel MOSFET pass transistor, their dropout voltage is a function of RDS(ON) multiplied by the load current. PD(MAX) = (TJ–TA) /θJA,=(150°C-25°C)/240°C/W = 520mW Where (TJ–TA) is the temperature difference the G916 die and the ambient air,θJA, is the thermal resistance of the chosen package to the ambient air. For surface Ver: 1.7 Jan 25, 2006 TEL: 886-3-5788833 http://www.gmt.com.tw 10 Global Mixed-mode Technology Inc. Layout Guide An input capacitance of ≅ 1µF is required between the G916 input pin and ground (the amount of the capacitance may be increased without limit), This capacitor must be located a distance of not more than 1cm from the input and return to a clean analog ground. G916 Input capacitor can filter out the input voltage spike caused by the surge current due to the inductive effect of the package pin and the printed circuit board’s routing wire. Otherwise, the actual voltage at the IN pin may exceed the absolute maximum rating. Safe Operating Area of IOUT=150mA [Power Dissipation Limit] 250 TA = 55°C 200 TA = 85°C TA = 25°C Output Current IOUT (mA) The output capacitor also must be located a distance of not more than 1cm from output to a clean analog ground. Because it can filter out the output spike caused by the surge current due to the inductive effect of the package pin and the printed circuit board’s routing wire. Figure 5 is adjustable mode of G916 PCB layout. Safe Operating Area of IOUT=300mA [Power Dissipation Limit] 400 350 300 Output Current IOUT (mA) 250 200 150 100 50 0 TA = 85°C TA = 25°C TA = 55°C Still air 1oz copper on SOT-23-5 package Mounted on recommended foorprint (RθJA=240°C/W) 150 100 50 Still Air 1oz copper on SOT-23-5 Package Mounted on recommended foorprint (RθJA=240°C/W) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2 0 Input-Output Voltage Differential VIN-VOUT (V) Note: VIN (max)