GM66302TA5R

Description The GM66300 series is 3.0A low-dropout linear voltage regulators that provide a low-voltage, and high-current output with a minimum of external components. The GM66300 series offers extremely low dropout (typically 400mV at 3.0A) and low ground current (typically 36mA at 3.0A). The GM66300 series is ideal for PC add-in cards that need to convert from standard 3.0V to 2.5V and 2.5V to 1.8, down to new, lower core voltages. A guaranteed maximum dropout voltage of 500mV over all operating conditions allows the GM66300 series to provide 2.5V from a supply as low as 3V or 1.8V . The GM66300 series also has fast transient response, for heavy switching applications. The device requires only 47µF of output capacitance to maintain stability and achieve fast transient response. The GM66300 series is fully protected with overcurrent limiting, thermal shutdown, reversed-battery protection, reversed-lead insertion protection, and reversed-leakage protection. The GM66301 series offers a TTL-logic-compatible enable pin, and an error flag that indicates undervoltage and overcurrent conditions. Offered in a fixed voltages, 1.8V and 2.5V, the GM66300 series comes in the TO-220 and TO-263 packages, and is an ideal upgrade to older, NPNbased linear voltage regulators. The GM66030 is adjustable version. Features 3.0A minimum guaranteed output current 500mV dropout voltage Ideal for 3.0V to 2.5V conversion Ideal for 2.5V to 1.8V conversion 1% initial accuracy Low ground current Current limiting and Thermal shutdown Reversed-battery protection Reversed-leakage protection Fast transient response TO-220 and TO-263 packages TTL/CMOS compatible enable pin (GM66301 only) Error flag output (GM66301 only) Adjustable version (GM66302 only) Application LDO linear regulator for PC add-in cards High-efficiency linear power supplies SMPS post regulator Multimedia and PC processor supplies Low-voltage microcontrollers Strong ARMTM processor supply T YPICAL APPLICATION CIRCUITS 100kW VIN 3.3V VIN VOUT VOUT 2.5V ENABLE SHUTDOWN GM66300 - 2.5 GND GM66301 - 2.5 VEN VIN GND FLG VOUT ERROR FLAG OUTPUT + 47µF VIN 3.3V VOUT 2.5V + 47µF ENABLE SHUTDOWN GM66302 VEN VIN GND 10µF OUT + VIN 3.3V Adj 1.25V 47µF www.gammamicro.com GM66300 SERIES V0.1 1 GM 431 MARKING INFORMATION & PIN CONFIGURATIONS TO-263-2 (D PAK) 2 TO-220 TO-220- 5 TO-263-5(D PAK) 2 TO-220- 5 GM66300 VVAYWW GM66300 VVAYWW GM66301 VVAYWW GM66301 VVAYWW GM66302 AYWW VIN GND VOUT VIN 2 GND VOUT EN VIN FLG GND VOUT EN VIN FLG GND VOUT EN VIN Adj GND VOUT TO-263-5(D PAK) Pinout On all devices, the Tab is grounded. GM66300/ Three Terminal GM66302 AYWW Pin 1 = Input, 2 = Ground, 3 = Output GM66301/ Five Terminal (Fixed Voltage Devices) VV EN VIN Adj GND VOUT A Y WW = Output Voltage (18=1.8V , 25=2.5V) = Assembly Location = Year = Weekly Pin 1 = Enable, 2 = Input, 3 = Ground, 4 = Output, 5 = Flag GM66302/ Adjustable with ON/ OFF Control Pin 1 = Enable, 2 = Input, 3 = Ground, 4 = Output, 5 = Adjust ORDERING INFORMATION O rdering Number Output Voltage Package Shipping GM66300 GM66300-1.8TA3T GM66300-1.8TA3R GM66300-1.8TB3T GM66300-2.5TA3T GM66300-2.5TA3R GM66300-2.5TB3T 1.8V 1.8V 1.8V 2.5V 2.5V 2.5V T O-263-2 TO-263-2 TO-220 TO-263-2 TO-263-2 TO-220 50 Units/ Tube 800 Units/ Tape & Reel 50 Units/ Tube 50 Units/ Tube 800 Units/ Tape & Reel 50 Units/ Tube GM66300 SERIES GM66301 GM66301-1.8TA5T GM66301-1.8TA5R GM66301-1.8TB5T GM66301-2.5TA5T GM66301-2.5TA5R GM66301-2.5TB5T 1.8V 1.8V 1.8V 2.5V 2.5V 2.5V TO-263-5 TO-263-5 TO-220-5 TO-263-5 TO-263-5 TO-220-5 50 Units/ Tube 800 Units/ Tape & Reel 50 Units/ Tube 50 Units/ Tube 800 Units/ Tape & Reel 50 Units/ Tube GM66302 GM66302TA5T GM66302TA5R GM66302TB5T Adj Adj Adj TO-263-5 TO-263-5 TO-220-5 50 Units/ Tube 800 Units/ Tape & Reel 50 Units/ Tube * For detail Ordering Number identification, please see last page. 2 PIN DESCRIPTION PIN Number PIN Number PIN NUMBER PIN Name GM66300 GM66301 GM66302 1 1 2, TAB 3 2 3, TAB 4 5 5 1 2 3, TAB 4 VEN VIN GND VOUT FLG Adj PIN Function Enable (Input): TTL/CMOS compatible input. Logic high=enable; logic low or open=shutdown. Unregulated Input: +16V maximum supply. Ground: Ground pin and TAB are internally connected. Regulator Output. Error Flag (Output): Open collector output. Active low indicates an output fault condition. Adjustable ABSOLUTE MAXIMUM RATINGS (Note 1) Parameter Power Dissipation Supply Voltage Lead Temperature (Soldering, 5 sec) Storage Temperature Range ESD, Note 3 Symbol PD VIN TLEAD TSTG Value Internally limited -20 to +20 260 -65 to +150 Unit W V °C °C OPERATING RATINGS (Note 2) Parameter Supply Voltage Enable Voltage Operating junction Temperature Range Thermal Resistance (TO-263-2 ,TO-220) Maximum Power Dissipation, Note 4 Symbol VIN VEN TJ qJC Value + 2.5 to +16 +16 -40 to +125 2.0 Unit V V °C °C/W FUNCTIONAL DIAGRAM IN O.V. ILimit 18V FLAG* OUT + - 1.18V Ref. 1.24V + - EN* Thermal Shut-down GND * GM66301 ONLY GM66300 SERIES 3 ELECTRICAL CHARACTERISTICS TJ = 25°C, bold values indicate -40°C Parameter Output Voltage 10mA IOUT TJ +125°C; unless noted Min -1 8V -2 0.06 0.20 20 65 185 250 385 10 17 45 6 4.5 550 20 Conditions IO = 10 mA 3A, VOUT + 1V VIN Typ Max 1 2 0.5 1.0 100 200 Unit % % % % Line Regulation Load Regulation Output Voltage change with Temperature Coef. Note 5 Dropout Voltage Note 6 & 9 IOUT = 10mA, VOUT + 1V VIN 8V VIN = VOUT + 1V, 10mA IOUT 3A DVOUT / DT IOUT = 100mA, DVOUT = -1% IOUT = 750mA, DVOUT = -1% IOUT = 1.5A, DVOUT = -1% IOUT = 3A, DVOUT = -1% IOUT = 750mA, VIN = VOUT + 1V IOUT = 1.5A, VIN = VOUT + 1V IOUT = 3A, VIN = VOUT + 1V V IN VOUT(nominal) -0.5V, IOUT=10mA VOUT= 0V, VIN = VOUT + 1V ppm/°C mV Ground Current Note 7 Dropout Ground Pin Current Current Limit Enable Input (Gm66301) mA mA A Logic Low (off) Enable Input Voltage Logic high (on) VEN = 2.5V VEN = 0.8V Shutdown Output Current Flag Output (GM66301) 2.5 15 0.8 V V Enable Input Current 30 75 2 4 µA µA µA (Note 8) 10 20 Output Leakage Current Output Low Voltage Low Threshold High Threshold Hysteresis Note Note Note Note VOH = 16V VIN = 2.5V, IOL= 250µA Note 9 % of VOUT % of VOUT 93 0.01 220 1 2 300 400 µA mV % 99.2 1 % % 1. E xceeding the absolute maximum ratings may damage the device. 2. T he device is not guaranteed to function outside its operating rating. 3. D evices are ESD sensitive. Handing precautions recommended. 4. P D(max) =(T J(max) -T A ) ÷ q JA , where q JA d epends upon the printed circuit layout. See "Applications Information". GM66300 SERIES 4 Note 5. O utput voltage temperature coefficient is D V OUT(worst case) ÷ (TJ(max) - TJ(min) ) where T J(max) is +125°C and T J(min) is -40°C. Note 6. V D O =V IN -V OUT when VOUT decreases to 99% of its nominal output voltage with V IN =V OUT +1V. For voltages below 2.5V, d ropout voltage is the input-to-output voltage differential with the minimum input voltage being 2.5V. Minimum input operating voltage is 2.25V. Note 7. I G ND i s the quiescent current. IIN = IGND + IOUT Note 8. V EN 0 .8V, V IN 8V, and VOUT = 0V Note 9. F or a 1.8V device, VIN = 2.5V. TYPICAL CHARACTERISTICS 400 350 Dropout Voltage (mV) 300 250 200 150 100 50 0 0 1000 2000 3000 VOUT = 1.8V Dropout Voltage (mV) VOUT = 2.5V 600 500 400 300 200 100 ILOAD = 3.0A 0 -40 -20 0 20 40 60 80 100 120 1.2 1.2 1.6 2.0 2.4 2.8 3.2 3.6 VOUT = 1.8V Output Voltage (V) VOUT = 2.5V 2.8 2.6 2.4 2.2 2 1.8 1.6 1.4 ILOAD = 1.5A ILOAD = 3A ILOAD = 100mA Output Current (mA) Temperature (°C) Figure 1. Dropout Voltage vs. Output Current Figure 2. Dropout Voltage vs. Temperature Input Voltage(V) Figure 3. Dropout Characteristics 100 90 80 Ground Current (mA) 70 60 50 40 30 20 10 0 0 2 4 6 ILOAD = 1000mA 8 10 12 Supply Voltage (V) ILOAD = 1500mA ILOAD = 3000mA Ground Current (mA) 8 7 25 20 5 4 3 2 1 0 -40 -20 ILOAD = 10mA 0 20 40 60 80 100 120 0 -40 Ground Current (mA) 6 VOUT = 1.8V VOUT = 2.5V VOUT = 2.5V 15 VOUT = 1.8V 10 5 ILOAD = 1500mA -20 0 20 40 60 80 100 120 Temperature (°C) Temperature (°C) Figure 4. Ground Current vs. Supply Voltage Figure 5. Ground Current vs. Temperature Figure 6. Ground Current vs. Temperature 60 50 Ground Current (mA) 40 30 20 10 0 -40 -20 ILOAD = 3000A 0 20 40 60 80 100 120 Temperature (°C) VOUT = 2.5V VOUT = 1.8V 6 Typical 1.8V Device 5 Short Circuit Current (A) Flag Voltage(V) 4 3 2 1 0 -40 -20 VIN = VOUT (NOM) + 1V VOUT =0 0 20 40 60 80 100 120 Temperature (°C) Typical 2.5V Device 6 5 4 3 Flag High (OK) VIN =5V 1 Flag Low (Fault) 0 0.01 0.1 1 10 100 1000 10000 Resistance (k ) Figure 7. Ground Current vs. Temperature Figure 8. Short Circuit Current vs. Temperature Figure 9. Error Flag Pull-up Resistor GM66300 SERIES 5 2 APPLICATION INFORMATION The GM66300 series is a high performance with lowdropout voltage regulator, suitable for moderate to high-current voltage regulator applications. Its 500mV dropout voltage at full load makes it especially valuable in battery-powered systems and as a high-efficiency noise filter in post-regulator applications. Unlike older NPN-pass transistor designs, where the minimum dropout voltage is limited by the base-toemitter voltage drop and collector-to-emitter saturation voltage. Dropout performance of the PNP output of these devices is limited only by the low VCE saturation Voltage. The GM66300 series regulator is fully protected from damage due to fault conditions. Current limiting is provided. This limiting is linear, output current during overload conditions is constant. Thermal shutdown disables the device when the die temperature exceeds the maximum safe operating temperature. Transient protection allows device (and load) survival even when the input voltage spikes above and below nominal. The output structure of these regulators allows voltages in excess of the desired output voltage to be applied without reverse current flow. Calculate the power dissipation of the regulator from these numbers and the device parameters from this datasheet, where the ground current is taken from data sheet PD = (VIN - VOUT)IOUT + VIN IGND The heat sink thermal resistance is determined by: TJ(MAX) - TA qSA = - (qJC + qCS ) PD where TJ(max) 2°C/W. The heat sink may be significantly reduced in applications where the minimum input voltage is known and is large compared with the dropout voltage. Use a series input resistor to drop excessive voltage and distribute the heat between this resistor and the regulator. The low dropout properties of Super beta PNP regulators allow significant reductions in regulator power dissipation and the associated heat sink without compromising performance. When this technique is employed, a capacitor of at least 1.0µF is needed directly between the input and regulator ground. Output Capacitor The GM66300 series requires an output capacitor to maintain stability and improve transient response. Proper capacitor selection is important to ensure proper operation. The GM66300 series output capacitor selection is dependent upon the ESR (equivalent series resistance) of the output capacitor to maintain stability. When the output capacitor is 47µF or greater, the output capacitor should have less than 1W of ESR. This will improve transient response as well as promote stability. Ultra-low-ESR capacitors, such as ceramic chip capacitors may promote instability. These very low ESR levels may cause an oscillation and/or underdamped transient response. When larger capacitors are used, the ESR requirement approaches zero. A 100µF ceramic capacitor can be used on the output while maintaining stability. A low-ESR 47µF solid tantalum capacitor works extremely well and provides good transient response and stability over temperature. Aluminum electrolytics can also be used, as long as the ESR of the capacitor is 1W. The value of the output capacitor can be increased without limit. Higher capacitance values help to improve transient response, ripple rejection, and reduce output noise. 125°C and qCS is between 0°C and VIN GM66300 - X.X VIN VOUT VOUT GND + CIN + COUT Figure 10. Capacitor Requirements Thermal Design GM66300 SERIES 6 Linear regulators are simple to use. The most complicated design parameters to consider are thermal characteristics. Thermal design requires four application-specific parameters: Maximum ambient temperature (TA) Output Current (IOUT) Output Voltage (VOUT) Input Voltage (VIN) Ground Current (IGND) Input Capacitor An input capacitor of 1µF or greater is recommended when the device is more than 4 inches away from the bulk as supply capacitance, or when the supply is a battery. Small surfacemount ceramic chip capacitors can be used for the bypassing. Larger values will help to improve ripple rejection by bypassing the input to the regulator, further improving the integrity of the output voltage. Transient Response and 3.3V to 2.5V and 2.5V to 1.8V Conversions The GM66300 series has excellent transient response to variations in input voltage and load current. The device has been designed to respond quickly to load current variations and input voltage variations. Large output capacitors are not required to obtain this performance. A standard 47µF output capacitor, preferably tantalum, is all that is required. Larger values improve performance even further. By virtue of its low-dropout voltage, this device does not saturate into dropout as readily as similar NPNbased designs. When converting from 3.3V to 2.5V or 2.5V to 1.8V, the NPN-based regulators are already operating in dropout, with typical dropout requirements of 1.2V or greater. To convert down to 2.5V without operating in dropout, NPN-based regulators require an input voltage of 3.7V at the very least. The GM66300 series regulator will provides excellent performance with an input as low as 3.0V or 2.5V respectively. This gives the PNP-based regulators a distinct advantage over older, NPN-based linear regulators. A typical NPN regulator does not have the headroom to do this conversion. Minimum Load Current The GM66300 series regulator is specified between finite loads. If the output current is too small, leakage currents dominate and the output voltage rises. A 10mA minimum load current is necessary for proper regulation. Error Flag The GM66300 series version features an error flag circuit which monitors the output voltage and signals an error condition when the voltage 5% below the nominal output voltage. The error flag is an open-collector output that can sink 10mA during a fault condition. Low output voltage can be caused by a number of problems, including an overcurrent fault (device in current limit) or low input voltage. The flag is inoperative during overtemperature shutdown. When the error flag is not used, it is best to leave it open. The flag pin can be tied directly to pin 4, the output pin. Enable Input The GM66300 series version features an enable input for on/off control of the device. Its shutdown state draws "zero" current. The enable input is TTL/CMOS compatible for simple logic interface, but can be connected to up to 20V. When enabled, it draws approximately 15µA. GM66300 SERIES 7 TO-220 PACKAGE OUTLINE DIMENSIONS 9.90 ± 0.20 3.60 ± 0.20 1.30 ± 0.10 1.70 1.50 DP0.20 9.20 ± 0.20 3.70 ± 0.20 15.90 ± 0.20 4.60 18.95 MAX 3° 0.9 7.0 8.70 2.80 ± 0.10 4.50 ± 0.20 8.0 +0.1 1.30 -0.05 7.0 8.40 1.46 1.00 45° 3.00 3° 3° 13.08 ± 0.20 10.08 ± 0.30 1.27 ± 0.10 3-R0.2 2.54 TYP (2.54 ± 0.20) 0.80 ± 0.10 1.52 ± 0.10 0.50 -0.05 +0.1 2.40 ± 0.20 3° 3° 2 - R 0.3 Unit: mm 10.00 ± 0.20 TO-220-5 PACKAGE OUTLINE DIMENSIONS 9.97 ± 0.20 9.90 ± 0.20 3.60 ± 0.20 1.30 ± 0.10 1.70 1.50 DP0.20 3.70 ± 0.20 4.60 15.90 ± 0.20 3° 7.0 ± 0.20 28.78 MAX 9.20 ± 0.20 3° 3° 8.70 2.80 ± 0.10 4.50 ± 0.20 8.0 ± 0.20 1.30 -0.05 +0.1 7.0 GM66300 SERIES 9.20 ± 0.20 8.40 1.2 13.08 ± 0.20 3-R0.2 5-0.8 ± 0.10 0.50 -0.05 +0.1 2.40 ± 0.20 1.7(TYP) 3° 3° 2 - R 0.3 Unit: mm 10.00 ± 0.20 8 TO-263-2 PACKAGE OUTLINE DIMENSIONS 9.90 ± 0.20 0.40 15° 1.20 3° 1.50 DP0.20 9.20 ± 0.20 4.50 ± 0.20 1.30 -0.05 +0.1 Pad Layout 0.63 17.02 0.33 8.38 3° 0.10 ± 0.01 R0.30 2.40 ± 0.20 2.54 ± 0.10 0.50 -0.05 10.0 ± 0.20 7.0 4.0 0.04 1.016 +0.1 0.12 3.05 15.3 ± 0.20 3° 1.4 ± 0.20 4.90 ± 0.20 0.90 ± 0.10 1.27 ± 0.10 2.54 TYP (2.54 ± 0.20) 0.75 R0.30 2.00 ± 0.10 0.42 10.66 0.24 6.096 0.40 3° R 0.3 R 0.45 7.2 9.20 ± 0.20 3° 0.90 ( Inches ) mm 10.00 ± 0.20 4.90 ± 0.20 Unit: mm T O-263-5 PACKAGE OUTLINE DIMENSIONS 9.90 0.40 15' 1.20 3° 4.60 1.50 DP0.20 9.20 4.50 1.30 Pad Layout 15.3 2.00 0.10 3° 9 1.20 4.90 0.75 R0.30 2.40 R0.30 2.54 0.50 11.5 3.8 1.7 1.70 TYP (1.70 ± 0.20) 0.80 0.40 1.75 10.0 8.0 7.0 4.40 1.07 3° R 0.3 3° 0.90 R 0.45 7.2 9.20 15.30 10.00 Units: mm 4.90 Unit: mm GM66300 SERIES 9 17.5 ORDERING NUMBER GM 66300/ 6630X 1.8 TA3 T Gamma Micro. Circuit Type Shipping R: Tape & Reel T: Tube Package TA3: TO-263-2 TA5: TO-263-5 TB3: TO-220-3 TB5: TO-220-5 Output Voltage 1.8: 1.8V 2.5: 2.5V Blank: Adj GM66300 SERIES 10 11 GM66300 SERIES