GM6610x Series 1.0A ULTRA LOW DROPOUT VOLTAGE REGULATORS Description Features The GM66100/1/2 series are 1A ultra low-dropout linear voltage regulators that provide low-voltage, high output current from an extremely small package. Fixed and adjustable output voltages Typical 410mV Dropout Voltage @ 1A 1A minimum guaranteed output current The GM66100/1/2 offers extremely low dropout (typically 410 m V at 1A) and low ground current (typically 12mA at 1A). Accurate 1% Guaranteed Tolerance Current limiting and thermal shutdown The GM66100 offers 3 Lead packages with a fixed output voltage options while GM66101/2 offer SO8 packages for fixed and adjustable output voltages accordingly. Reverse-battery Protection Reversed leakage protection Fast Transient Response The GM66100/1/2 is ideal for PC add-in cards that need to convert from standard 5V to 3.3V, 3.3V to 2.5V or 2.5V to 1.8V. A guaranteed maximum dropout voltage of 630mV over all operating conditions allows the GM66100/1/2 provide 2.5V from a supply as low as 3.13V and 1.8V from a supply as low as 2.43V. The GM66100/1/2 is fully protected with over current limiting, thermal shutdown, and reversedbattery protection. Application High Efficiency Linear Regulators Battery Powered Equipment Ideal for 3.0V to 2.5V conversion Automotive Electronics Ideal for 2.5V to 1.8V conversion Post Regulators for Switching Supplies Typical Application Circuits GM66100-2.5 VIN 3.3V VOUT 2.5V VOUT VIN GM6610xV2.06 Gnd 2 GM66101-2.5 Enable Shutdown VIN 3.3V 10uF 2.5V/1A Regulator Enable Flag Error Flag Output VIN VOUT VOUT 2.5V Gnd 10uF 2.5V/1A Regulator with Error Flag GM66102 Enable Enable Shutdown VOUT 1.5V VOUT R1 VIN 2.5V VIN Gnd Adj R2 10uF 1.5V/1A Adjustable Regulator www.gammamicro.com.tw GM6610x Series 1.0A ULTRA LOW DROPOUT VOLTAGE REGULATORS Marking Information and Pin Configurations (Top View) GM66100 TO 252 (D-PAK) GM66100G VVAYWW TO 263 (D2-PAK) TO 220 SOT223 GM66100G VVAYWW GM66100G VVAYWW 3. VOUT 2. GND 1.VIN 3. VOUT 2. GND 1. VIN 3. VOUT 2. GND 1. VIN GM66100G VVAYWW 3. VOUT 2.GND 1. VIN G: Green Product VV: Fixed Output (15 = 1.5V, 25 = 3.3V…) A: Assembly / Test site code Y: Year WW: Week GM66101 SO8 VIN VOUT Flag GM66101G VVAYWW EN G: Green Product VV: Fixed Output (15 = 1.5V, 25 = 3.3V…) A: Assembly / Test site code Y: Year WW: Week Gnd Gnd Gnd Gnd GM66102 G: Green Product A: Assembly / Test site code Y: Year WW: Week VIN VOUT Adj GM66102G AYWW EN Gnd Gnd Gnd Gnd GM6610x V2.06 SO8 3 GM6610x Series 1.0A ULTRA LOW DROPOUT VOLTAGE REGULATORS Ordering Information Ordering Number Output Voltage Package Shipping GM66100-1.8TA3RG 1.8V TO-263 800 Units / Reel GM66100-1.8TB3TG 1.8V TO-220 50 Units/Tube GM66100-1.8TC3TG 1.8V TO-252 2,500 Units/Reel GM66100-1.8ST3RG 1.8V SOT-223 2,500 Units/Reel GM66100-2.5TA3RG 2.5V TO-263 800 Units / Reel GM66100-2.5TB3TG 2.5V TO-220 50 Units/Tube GM66100-2.5TC3RG 2.5V TO-252 2,500 Units / Reel GM66100-2.5ST3RG 2.5V SOT223 2,500 Units / Reel GM66100-3.3TA3RG 3.3V TO-263 800 Units / Reel GM66100-3.3TB3TG 3.3V TO-220 50 Units/Tube GM66100-3.3TC3TG 3.3V TO-252 2,500 Units/Reel GM66100-3.3ST3RG 3.3V SOT-223 2,500 Units/Reel GM66100-5.0TA3RG 5.0V TO-263 800 Units / Reel GM66100-5.0TB3TG 5.0V TO-220 50 Units/Tube GM66100-5.0TC3RG 5.0V TO-252 2,500 Units / Reel GM66100-5.0ST3RG 5.0V SOT223 2,500 Units / Reel Output Voltage Package Shipping GM66101-1.8S8RG 1.8V SOP-8 2,500 Units/Reel GM66101-2.5S8RG 2.5V SOP-8 2,500 Units/Reel GM66101-3.3S8RG 3.3V SOP-8 2,500 Units/Reel Output Voltage Package Shipping Adj SOP-8 2,500 Units/Reel GM66100 Ordering Information (continued) Ordering Number GM66101 GM6610xV2.06 Ordering Information (continued) 4 Ordering Number GM66102 GM66102S8RG GM6610x Series 1.0A ULTRA LOW DROPOUT VOLTAGE REGULATORS Absolute Maximum Ratings (Note 1) Rating Symbol Value Unit Supply Voltage VIN -20 to +20 V Enable Voltage VEN +20 V Storage Temperature Range TSTG - 65 to 150 °C + 260 °C Lead Temperature (Soldering, 10 sec) ESD Note 3 Operating Ratings (Note 2) Symbol Value Unit Supply Voltage VIN 2.25 to 16 V Enable Voltage VEN 2.25 to 16 V Maximum Power Dissipation PD(MAX) Junction Temperature Range TJ Package Thermal Resistances SOT223 SO8 θJC Note 4 -40 to 125 °C 15 °C/W 20 °C/W GM6610x V2.06 Rating 5 GM6610x Series 1.0A ULTRA LOW DROPOUT VOLTAGE REGULATORS Block Diagram VIN VOUT 18V Ref 1.24V Thermal Shut Down Gnd GM66100 Fixed Regulator Block Diagram VIN VOUT 18V FLAG Ref 1.24V EN Thermal Shut Down Gnd GM66101 Fixed Regulator with Flag and Enable Block Diagram VIN VOUT 18V GM6610xV2.06 Ref 6 1.24V EN Adj Thermal Shut Down Gnd GM66102 Adjustable Regulator with Enable Block Diagram GM6610x Series 1.0A ULTRA LOW DROPOUT VOLTAGE REGULATORS Electrical Characteristics: (VIN = VOUT + 1V, VEN = 2.25V,Unless otherwise specified: TJ = 25°C, Bold values are guaranteed across the full operating temperature range) Parameter Output Voltage Condition Symbol IO = 10mA VOUT 10mA < IO < 1A, VOUT + 1V < VIN < 8V Line Regulation Load Regulation Output Temperature Coefficient Min 1 -2 -2 % ΔVOI 0.06 0.5 % VIN = VOUT + 1V, 10mA < IO < 1A ΔVOL 0.2 1.0 % ΔVOUT/ ΔT 40 100 ppm/°C 150 200 Note 5 IO = 500mA, ΔVOI = -1% IO = 750mA, ΔVOI = -1% 250 275 VDO IO = 500mA, VIN = VOUT + 1V 330 500 410 550 mV 630 700 IO = 100mA, VIN = VOUT + 1V Current Limit Unit IO = 10mA, VOUT + 1V < VIN < 16V IO = 1A, ΔVOI = -1% Ground Current Note 7 Max -1 IO = 100mA, ΔVOI = -1% Dropout Voltage, Note 6 Typ μA 4 IGND mA IO = 750mA, VIN = VOUT + 1V 7 IO = 1A, VIN = VOUT + 1V 12 20 1.8 2.5 A Typ Max Unit 08 V VOUT = 0V, VIN = VOUT + 1V ICL Enable Input Condition Symbol Enable Input Voltage Logic low (OFF) VEN(low) Logic High (ON) VEN(high) VEN = 2.25V IEN(low) Enable Input Current VEN = 0.8V Min 2.25 1 15 30 75 IEN(high) 2 μA 4 GM6610x V2.06 Parameter 7 GM6610x Series 1.0A ULTRA LOW DROPOUT VOLTAGE REGULATORS Flag Output Parameter Condition Symbol Output Leakage Current VOH = 16V IFLG(leak) VIN = 0.9V+VOUT Nominal, ICL=250μA VFLG (DO) Output Low Voltage Note 8 Low Threshold High Threshold Min Typ Max 0.01 1 2 240 300 Unit μA mV 400 93 % of VOUT 99.2 % of VOUT Hysteresis % 1 IEN(low) 1 15 30 75 Enable Input Current VEN = 0.8V IEN(high) Condition Symbol 2 μA 4 GM66102 Only Parameter Reference Voltage VREF Note 9 Adjust Pin Bias Current Reference Voltage Temp Coefficient Note 5 Adjust Pin Bias Current Temp Coefficient Note 1: Note 2: Note 3: Note 4: Note 5: GM6610xV2.06 Note 6: 8 Note 7: Note 8: Note 9: IADJ Min Typ Max 1.228 1.24 1.252 1.215 1.265 1.203 1.277 40 80 Unit V μA 120 ΔVREF/ ΔT 20 Δ IADJ / ΔT 0.1 ppm/°C 99.2 nA/°C Exceeding the absolute maximum ratings may damage the device. The device is not guaranteed to function outside its operating rating. Devices are ESD sensitive. Handling precautions is recommended. PD(MAX) = (TJ(MAX) – TA)/θJA, where θJA is junction to ambient thermal resistance Output voltage temperature coefficient is ΔVOUT(worst case)/(TJ(MAX)-TJ(MIN)), where TJ(MAX) is 125°C and TJ(MIN) is 0°C VDO = VIN – VOUT when VOUT decreases to 99% of its nominal output voltage with VIN = VOUT + 1V. For output voltage below 2.25V, dropout voltage is the input-to-output voltage differential with the minimum input voltage being 2.25V. Minimum input operating voltage is 2.25V. IGND is the quiescent current. IIN = IGND + IOUT For adjustable device and fixed device with VOUT > 2.5V VREF ≤ VOUT ≤ (VIN – 1V), 2.25V ≤ VIN ≤ 16V, 10mA ≤ IL ≤1A GM6610x Series 1.0A ULTRA LOW DROPOUT VOLTAGE REGULATORS Application Information The GM66100/1/2 is a low dropout voltage regulator suitable for applications which ultra low dropout performance is needed. Unlike older NPN-pass transistor designs, where the minimum dropout voltage is limited by the base-to-emitter 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 GM66100/1/2 regulator is fully protected from damage due to fault conditions. Linear current limiting is provided. 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. GM66100-x.x VIN IN CIN VOUT OUT GND COUT Figure 1. Capacitor Requirements Output Capacitor An output capacitor is required for the GM66100/1/2 to maintain stability and improve transient response. Proper capacitor selection is important to ensure proper operation. The output capacitor selection is dependent upon the ESR (equivalent series resistance) of the output capacitor to maintain stability. When the output capacitor is 10μF or greater, the ESR value of the output capacitor should be less than 2Ω for the purpose of transient response improvement as well as stability. Ultra-low-ESR capacitors (<100mΩ), such as ceramic chip capacitors, may promote instability. A low-ESR solid tantalum capacitor works extremely well and provides good transient response and stability over temperature. Aluminum electrolytes can also be used, as long as the ESR of the capacitor is <2Ω. The value of the output capacitor can be increased without limit. Higher capacitance values help to improve transient response and ripple rejection and reduce output noise. Input Capacitor Error Flag The GM66101 features an error flag (FLG), which monitors the output voltage and sends out an error signal when the output voltage drops 5% below its expected value. The error flag is an open-collector output that pulls low under fault conditions and may sink up to 10mA. Low output voltage signifies a number of possible problems, including an over current fault (the device is in current limit) or low input voltage. The flag output is inoperative during over temperature conditions. A pull-up resistor from FLG to either V!N or VOUT is required for proper operation. For information regarding the minimum and maximum values of pull-up resistance, refer to the graph in the typical characteristics section of the data sheet. GM6610x V2.06 An input capacitor of 1μF or greater is recommended when the device is more than 4 inches away from the bulk ac supply capacitance or when the supply is a battery. Small, surface mount, ceramic chip capacitors can be used for bypassing. Larger values will help to improve ripple rejection by bypassing the input to the regulator, further improving the integrity of the output voltage. 9 GM6610x Series 1.0A ULTRA LOW DROPOUT VOLTAGE REGULATORS Enable Input The GM66101 and GM66102 feature an active-high enable input (EN) which allows on-off control of the regulator. The EN input has TTL/CMOS compatible thresholds for simple logic interfacing. EN may be directly tied to VIN and pulled up to the maximum supply voltage. Transient Response and 3.3V to 2.5V or 2.5V to 1.8V Conversion The GM66100 series has excellent transient response to variations 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 10μF output capacitor, preferably tantalum, is all that is required. Larger values help to 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 or 1.8V without operating in dropout, NPN based regulators require an input voltage of 3.7V at the very least. The GM66100 regulator will provide 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. Minimum Load Current The GM66100/1/2 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. Adjustable Regulator Design Enable Shutdown GM66102 Enable VOUT VOUT R1 VIN VIN Gnd Adj R2 COUT Figure 2. Adjustable Regulator with Resistors VOUT = 1.24V x (1+ R1/R2) The GM66102 allows programming the output voltage anywhere between 1.24V and the 16V maximum operating rating of the family. Two resistors are used. The resistor values are calculated by: GM6610xV2.06 R1 = R2 x (VOUT/1.24 - 1) 10 Where VOUT is the desired output voltage. Figure 2 shows component definition. Applications with widely varying load currents may scale the resistors to draw the minimum load current required for proper operation (see above). GM6610x Series 1.0A ULTRA LOW DROPOUT VOLTAGE REGULATORS Package Outline Dimensions – SOT223 0.248 - 0.264 (6.30 - 6.71) 0.010 - 0.014 (0.25 - 0.36) 0.116 - 0.124 (2.95 - 3.15) 0.130 - 0.146 (3.30 - 3.71) 0.264 - 0.287 (6.71 - 7.29) °10 - 16° 0.071 (1.8) MAX 0.0008 - 0.0040 (0.0203 - 0.1016) 10°- 16 ° 0.012 (0.31) 0.090 (2.29) 0.033 - 0.041 (0.84 - 1.04) NOM MIN 0.025 - 0.033 (0.64 - 0.84) 0.81 (4.6)NOM 10° MAX NOM Package Outline Dimensions – TO252 0.205 – 0.215 (5.210 – 5.460) 0.039 – 0.050 (1.020 – 1.270) 0.055 – 0.080 (1.400 – 2.030) 0.018 – 0.023 (0.460 – 0.580) SEATING PLAN 0.370 – 0.410 (9.400 – 10.420) 0.090 (2.285) TYP 0.180 (4.570) TYP 0.045 – 0.060 (1.150 – 1.520) 0.030 – 0.045 (0.760 – 1.140) 0.020 (0.510) MIN 0.018 – 0.023 (0.460 – 0.580) GM6610x V2.06 0.210 – 0.228 (5.330 – 5.800) 11 GM6610x Series 1.0A ULTRA LOW DROPOUT VOLTAGE REGULATORS Package Outline Dimensions – TO263 0.390 - 0.415 (9.906 - 10.541) 0.105 - 0.180 (4.191 - 4.572) 0.060 (1.524) TYP 0.045 - 0.055 (1.143 - 1.397) 15 TYP 0.330 - 0.370 (8.382 - 9.398) 0.059 (1.499) TYP 0.143 + 0.012 0.143 - 0.002 (3.632 + 0305) (3.362 - 0.508) 0.050 +/- 0.012 (1.270 +/- 0.305) 0.020 - 0.039 (0.510 - 0.990) 0.090 - 0.110 (2.286 - 2.794) 0.050 (1.270) 0.013 - 0.023 (0.330 - 0.584) Package Outline Dimensions – SO 8 0.189 - 0.197 (4.800 - 5.004) 0.228 - 0.244 (5.791 - 6.198) 0.016 - 0.050 (0.406 - 0.270) D 0.014 - 0.020 (0.356 - 0.508) 0.050 (1.270) TYP 0.150 - 0.157 (3.810 - 3.988) 0.053 - 0.059 (1.346 - 1.753) SEATING PLAN GM6610xV2.06 0.004 - 0.010 (0.012 - 0.254) 12 0.008 - 0.010 (0.203 - 0.254) 8.0 MAX GM6610x Series 1.0A ULTRA LOW DROPOUT VOLTAGE REGULATORS Ordering Number GM 66100 -1.8 APM Gamma Micro Circuit Type TA3 R Output Voltage Package Type Shipping Type 1.8 2.5 3.3 5.0 TA3: TB3: TC3: ST3: R:Taping& Reel T: Tube = = = = 1.8V 2.5V 3.3V 5.0V GM 66101 -1.8 APM Gamma Micro Circuit Type S8 R Output Voltage Package Type Shipping Type 1.8 2.5 3.3 5.0 S8: SOP-8 R:Taping& Reel T:Tube S8 R Output Voltage Package Type Shipping Type Adj S8: SOP-8 R:Taping& Reel T:Tube = = = = 1.8V 2.5V 3.3V 5.0V GM 66102 APM Gamma Micro Circuit Type TO263 TO220 TO252 SOT223 G Blank: Pb-free G:Green G Blank: Pb-free G:Green G Blank: Pb-free G:Green Note: Pb-free products: ♦ RoHS compliant and compatible with the current require-ments of IPC/JEDEC J-STD-020. ♦ Suitable for use in Pb-free soldering processes with 100% matte tin (Sn) plating. 8 10 6 ♦ Lead-free (RoHS compliant) ♦ Halogen free(Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by weight) GM6610x V2.06 Green products: 1