LM29150/29151/29152 1.5A Very L.D.O Voltage Regulator FEATURES TO-220 3L / 5L PKG High Current Capability 1.5A Low Dropout Voltage 350mV Low Ground Current Accurate 1% Guaranteed Initial Tolerance Extremely Fast Transient Response Reverse-Battery and "Load Dump" Protection Zero-Current Shutdown Mode(5-Pin Version) Error Flag Signals Output out-of-Regulation (5-Pin Version) z Also Characterized For Smaller Loads With Industry -Leading Performance specifications z Fixed Voltage and Adjustable Versions z Moisture Sensitivity Level 3 z z z z z z z z TO-263 3L / 5L PKG TO-252 3L / 5L PKG ORDERING INFORMATION Device LM29150T-X.X LM29151T-X.X LM29152T LM29150R-X.X LM29151R-X.X LM29152R LM29150RS-X.X LM29151RS-X.X LM29152RS APPLICATION z z z z z Battery Powered Equipment High-Efficiency " Green" Computer System Automotive Electronics High-Efficiency Linear Power Supplies High-Efficiency Post-Regulator For Switching Supply Package TO-220 3L / 5L TO-263 3L / 5L TO-252 3L / 5L X.X = Output Voltage = 1.5, 1.8, 2.5, 3.0, 3.3, 5.0, 12 DESCRIPSION The LM29150, LM29151 and LM29152 are high current, high accuracy, and low-dropout voltage regulators. Using process with a PNP pass element, these regulators feature 350mV (full load) dropout voltages and very low ground current. These devices also find applications in lower current, low dropout-critical systems, where their tiny dropout voltage and ground current values are important attributes. The LM29150, LM29151 and LM29152 are fully protected against over current faults, reversed input polarity, reversed lead insertion, over temperature operation, and positive and negative transient voltage spikes. LM29151 features logic level enable control and an error flag which signals whenever the output falls out of regulation. On the LM29151 and LM29152, the ENABLE pin may be tied to Vin if it is not required for ON/OFF control. Absolute Maximum Ratings CHARACTERISTIC SYMBOL MIN. MAX. UNIT VIN - 20 + 60 V Lead Temperature(Soldering, 5 sec) TSOL - 260 ℃ Storage Temperature Range TSTG -65 + 150 ℃ (Note 1) Input Supply Voltage Nov. 2009 - Rev. 1.2 -1 - HTC LM29150/29151/29152 1.5A Very L.D.O Voltage Regulator Recommended Operating Ratings (Note 2) CHARACTERISTIC SYMBOL MIN. MAX. UNIT Operating Input Voltage VIN - + 26 V Junction Temperature TJ -40 + 125 ℃ Ordering Information VOUT 1.5 V 1.8 V 2.5 V 3.0 V 3.3 V Package Order No. Description Supplied As Status TO-220 3L LM29150T-1.5 1.5A, Fixed Tube Active TO-220 5L LM29151T-1.5 1.5A, Fixed, Enable Tube Active TO-263 3L LM29150R-1.5 1.5A, Fixed Reel Active TO-263 5L LM29151R-1.5 1.5A, Fixed, Enable Reel Active TO-252 3L LM29150RS-1.5 1.5A, Fixed Reel Active TO-252 5L LM29151RS-1.5 1.5A, Fixed, Enable Reel Active TO-220 3L LM29150T-1.8 1.5A, Fixed Tube Active TO-220 5L LM29151T-1.8 1.5A, Fixed, Enable Tube Active TO-263 3L LM29150R-1.8 1.5A, Fixed Reel Active TO-263 5L LM29151R-1.8 1.5A, Fixed, Enable Reel Active TO-252 3L LM29150RS-1.8 1.5A, Fixed Reel Active TO-252 5L LM29151RS-1.8 1.5A, Fixed, Enable Reel Active TO-220 3L LM29150T-2.5 1.5A, Fixed Tube Active TO-220 5L LM29151T-2.5 1.5A, Fixed, Enable Tube Active TO-263 3L LM29150R-2.5 1.5A, Fixed Reel Active TO-263 5L LM29151R-2.5 1.5A, Fixed, Enable Reel Active TO-252 3L LM29150RS-2.5 1.5A, Fixed Reel Active TO-252 5L LM29151RS-2.5 1.5A, Fixed, Enable Reel Active TO-220 3L LM29150T-3.0 1.5A, Fixed Tube Active TO-220 5L LM29151T-3.0 1.5A, Fixed, Enable Tube Active TO-263 3L LM29150R-3.0 1.5A, Fixed Reel Active TO-263 5L LM29151R-3.0 1.5A, Fixed, Enable Reel Active TO-252 3L LM29150RS-3.0 1.5A, Fixed Reel Active TO-252 5L LM29151RS-3.0 1.5A, Fixed, Enable Reel Active TO-220 3L LM29150T-3.3 1.5A, Fixed Tube Active TO-220 5L LM29151T-3.3 1.5A, Fixed, Enable Tube Active TO-263 3L LM29150R-3.3 1.5A, Fixed Reel Active TO-263 5L LM29151R-3.3 1.5A, Fixed, Enable Reel Active TO-252 3L LM29150RS-3.3 1.5A, Fixed Reel Active TO-252 5L LM29151RS-3.3 1.5A, Fixed, Enable Reel Active Nov. 2009 - Rev. 1.2 -2 - HTC LM29150/29151/29152 1.5A Very L.D.O Voltage Regulator Ordering Information VOUT 5.0 V 12 V ADJ Package Order No. Description Supplied As Status TO-220 3L LM29150T-5.0 1.5A, Fixed Tube Active TO-220 5L LM29151T-5.0 1.5A, Fixed, Enable Tube Active TO-263 3L LM29150R-5.0 1.5A, Fixed Reel Active TO-263 5L LM29151R-5.0 1.5A, Fixed, Enable Reel Active TO-252 3L LM29150RS-5.0 1.5A, Fixed Reel Active TO-252 5L LM29151RS-5.0 1.5A, Fixed, Enable Reel Active TO-220 3L LM29150T-12 1.5A, Fixed Tube Active TO-220 5L LM29151T-12 1.5A, Fixed, Enable Tube Active TO-263 3L LM29150R-12 1.5A, Fixed Reel Active TO-263 5L LM29151R-12 1.5A, Fixed, Enable Reel Active TO-252 3L LM29150RS-12 1.5A, Fixed Reel Active TO-252 5L LM29151RS-12 1.5A, Fixed, Enable Reel Active TO-220 5L LM29152T 1.5A, Adjustable, Enable Tube Active TO-263 5L LM29152R 1.5A, Adjustable, Enable Reel Active TO-252 5L LM29152RS 1.5A, Adjustable, Enable Reel Active LM 2915X Output Voltage : 1.5V / 1.8V / 2.5V / 3.0V / 3.3V / 5.0V / 12V / Blank(ADJ Only) Package Type Root Name T : TO-220 R : TO-263 RS : TO-252 29150 : 3L Fixed Output 29151 : 5L Fixed Output 29152 : 5L Adjustable Output Product Code Nov. 2009 - Rev. 1.2 -3 - HTC LM29150/29151/29152 1.5A Very L.D.O Voltage Regulator PIN CONFIGURATION 5 4 3 2 1 3 OUTPUT 2 GND 1 INPUT TO-263 3L FLG / ADJ OUTPUT GND INPUT EN 3 OUTPUT 2 GND 1 INPUT TO-263 5L TO-252 3L 5 4 3 2 1 3 OUTPUT 2 GND 1 INPUT TO-220 3L 5 4 3 2 1 FLG/ADJ OUTPUT GND INPUT EN TO-252 5L FLG / ADJ OUTPUT GND INPUT EN TO-220 5L PIN DESCRIPTION TO-220 / TO-263 / TO-252 3L (for LM29150) TO-220 / TO-263 / TO-252 5L (for LM29151/2) Pin No. Name Function Name Function 1 VIN Input Supply EN Chip Enable 2 GND Ground VIN Input Supply 3 VOUT Output Voltage GND Ground 4 - - VOUT Output Voltage 5 - - FLG / ADJ Error Flag Output or Output Adjust Nov. 2009 - Rev. 1.2 -4 - HTC LM29150/29151/29152 1.5A Very L.D.O Voltage Regulator TYPICAL APPLICATION - Typical Fixed Output Application LM29150-3.3 5V ± 5% VIN CIN GND + 3.3V ± 1% @ 1.5A OUT + COUT - Typical Adjustable Output Application LM29152 VIN VIN VOUT OUT R1 CIN + EN GND + ADJ COUT R2 VOUT = VREF x [1 + (R1/R2)] * * For best results, the total series resistance should be small enough to pass the minimum regulator load current. Nov. 2009 - Rev. 1.2 -5 - HTC LM29150/29151/29152 1.5A Very L.D.O Voltage Regulator ELECTRICAL CHARACTERISTICS IOUT =100mA, TA=25℃, unless otherwise specified. Bold values are guaranteed across the operating temperature range. Adjustable versions are programmed to 5.0V. Symbol Parameter Condition IO = 10mA VOUT Output Voltage Line Regulation ΔVLOAD Load Regulation ΔVo/ΔT VDO IGND (Note 2) IGNDDO ILIMIT 2 , Temp. Coefficient 0.06 0.5 % 0.2 1 % 20 100 ppm/℃ 200 (Note 3) IO =100mA 80 IO =750mA 220 IO =1.5A 350 600 IO =750mA, VIN =VOUT+1V 8 20 IO =1.5A 22 Ground Pin Current at VIN =0.5V less than specified VOUT, Dropout IOUT =10mA Current Limit LM29150, VOUT = 0V (Note 4) 2.1 CL =10μF 400 CL =33μF 260 (10Hz to 100kHz) IL = 100mA Units (Note 6) Coefficient Output Noise Voltage en -2 (Note 2,6) 10mA≤IOUT≤IFULLOAD Output Voltage Ground Current 1 VIN=VOUT+5V, Output Voltage Temp. Dropout Voltage Max -1 IO = 10mA, (VOUT+1V)≤VIN≤26V ΔVOUT = -1%, Typ % 10mA≤IO≤ IFL, (VOUT+1V)≤VIN≤26V ΔVLINE Min 2 mV mA mA 3.5 A μVRMS Flag Output (Error Comparator) LM29151 IFLG (leak) Output Leakage Current VFLG (do) Output Low Voltage VFLG VOH =26V 0.01 Device set for 5V. VIN =4.5V IOL =250μA Upper Threshold Voltage Device set for 5V (Note 9) Lower Threshold Voltage Device set for 5V (Note 9) Hysteresis Device set for 5V Nov. 2009 - Rev. 1.2 220 (Note 9) -6 - 40 1.00 2.00 300 400 60 95 140 15 mV mV 25 75 μA mV mV HTC LM29150/29151/29152 1.5A Very L.D.O Voltage Regulator Reference LM29152 1.228 VREF 1.215 Reference Voltage (Note 8) IADJ 1.203 Adjust Pin Bias Current Reference Voltage Temp. Coefficient 1.24 Adjust Pin Bias Current Temp. Coefficient 1.265 1.277 40 (Note 7) 1.252 80 120 V V nA 20 ppm/℃ 0.1 nA/℃ Enable Input LM29151 / LM29152 VEN Enable Input Voltage Logic Low (Off) 0.8 2.4 Logic High (On) 100 VEN =26V IEN 750 Enable Pin Input Current 2.5 VEN =0.8V Regulator Output Current Shutdown 600 5 10 (Note 10) 500 V μA μA μA Note 1. Maximum positive supply voltage of 60V must be of limited duration (<100msec) and duty cycle(≤1%). The maximum continuous supply voltage is 26V. Note 2. Full load current (IFL) is defined as 1.5A. Note 3. Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with VOUT to VIN. Note 4. VIN = VOUT(nominal) +1V. For example, use VIN = 4.3V for a 3.3V regulator or use 6V for a 5V regulator. Employ pulse-testing procedures to minimize temperature rise. Note 5. Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the load current plus the ground pin current. Note 6. Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range. Note 7. Thermal regulation is defined as the change in output voltage at a time T after a change in power dissipation is applied, excluding load or line regulation effects. Specifications are for a 200mA load pulse at VIN = 20V (a 4W pulse) for T= 10ms. Note 8. VREF ≤ VOUT ≤ (VIN -1V), 2.3V ≤ VIN ≤ 26V, 10mA < IL < IFL, TJ＜ TJ Max. Note 9. Comparator thresholds are expressed in terms of a voltage differential at the Adjust terminal below the nominal reference voltage measured at. 6V input. To express these thresholds in terms of output voltage change, multiply by the error amplifier gain = VOUT / VREF = (R1 +R2)/R2. For example, at a programmed output voltage of 5V, the Error output is guaranteed to go low when the output drops by 95mV x 5V/ 1.240V - 384mV. Thresholds remain constant as a percent of VOUT as VOUT is varied, with the dropout warining occurring at typically 5% below nominal, 7.7% guaranteed. Note 10. VEN ≤ 0.8V and VIN ≤26V, VOUT =0. Note 11. When used in dual supply system where the regulator load is returned to a negative supply, the output voltage must be diode clamped to ground. Nov. 2009 - Rev. 1.2 -7 - HTC LM29150/29151/29152 1.5A Very L.D.O Voltage Regulator TYPICAL OPERATING CHARACTERISTICS LM29150 Dropout Voltage vs, Output Current LM29150 Dropout Voltage vs, Temperature LM29150-5.0 Dropout Characteristics LM29150 Ground Current vs, Supply Voltage LM29150 Ground Current vs, Temperature LM29150 Ground Current vs, Temperature LM29150-3.3 Output Voltage vs. Temperature LM29150-3.3 Short Circuit Current vs. Temperature LM29150 Ground Current vs. Input Voltage Nov. 2009 - Rev. 1.2 -8 - HTC LM29150/29151/29152 1.5A Very L.D.O Voltage Regulator APPLICATION INFORMATION The LM29150 are high performance low-dropout voltage regulators suitable for all moderate to high current voltage regulator applications. Their 350mV dropout voltage at full load makes them especially valuable in battery powered systems and as high efficiency noise filters in "post-regulator" applications. Unlike older NPN-pass transistor designs, dropout performance of the PNP output of these devices is limited merely by the low VCE saturation voltage. The LM29150 family of regulators is fully protected from damage due to fault conditions. Current Limiting is provided. This limiting is linear; output current under overload conditions is constant. Thermal shutdown disables the device when the die temperature exceeds the 125℃ maximum safe operating temperature. Transient protection allows device survival even when the input voltage spikes between -20V and +60V. When the input voltage exceeds about 35V to 40V, the over voltage sensor temporarily disables the regulator. Figure 1. Linear regulators require only two capacitors for operation. Thermal Design Linear regulators are simple to use. The most complicated design parameters to consider are thermal characteristics. Thermal design requires the following application-specific parameters: - Maximum ambient temperature, TA - Output Current, IOUT - Output Voltage, VOUT - Input Voltage, VIN First, we calculate the power dissipation of the regulator from these numbers and the device parameters from this datasheet. PD=IOUT(1.01VIN-VOUT) Where the ground current is approximated by 1% of IOUT. Then the heat sink thermal resistance is determined with this formula: T -T θSA = JMAX A - (θJC + θCS ) PD Where TJMAX ≤ 125℃ and θ CS is between 0 and 2℃/W. Nov. 2009 - Rev. 1.2 -9 - HTC LM29150/29151/29152 1.5A Very L.D.O Voltage Regulator Capacitor Requirements For stability and minimum output noise, a capacitor on the regulator output is necessary. The value of this capacitor is dependent upon the output current; lower currents allow smaller capacitors. LM29150 regulators are stable with the 10uF minimum capacitor values at full load. Where the regulator is powered from a source with a high AC impedance, a 0.1uF capacitor connected between input and GND is recommended. This capacitor should have good characteristics to above 250kHz. Minimum Load Current The LM29150 regulators are specified between finite loads. If the output is too small, leakage currents is too small, leakage currents dominate and the output voltage rises. The 5mA minimum load current swamps any expected leakage current across the operating temperature range. Adjustable Regulator Design The adjustable regulator versions, LM29152 allows programming the output voltage anywhere between 1.25V and the 26V maximum operating rating of the family. Two resistors are used. Resistors can be quite large, up to 1MΩ, because of the very high input impedance and low bias current of the sense comparator: The resistor values are calculated by: R1=R2( VOUT - 1) VREF Where VOUT is 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. VIN VIN VOUT OUT R1 + CIN EN + ADJ GND COUT R2 VOUT = 1.240 x [1 + (R1/R2)] Figure 2. Adjustable Regulator with Resistors Error Flag LM29151 versions feature and Error Flag, which looks at the output voltage and signals and error condition when this voltage and signals an error condition when this voltage drops 5% below its expected value. The error flag is an open-collector output that pulls low under fault conditions. It may sink 10mA. Low output voltage signifies a number of possible problems, including an over-current fault (the device is in current limit) and low input voltage. The flag output is inoperative during over temperature shutdown conditions. Nov. 2009 - Rev. 1.2 - 10 - HTC LM29150/29151/29152 1.5A Very L.D.O Voltage Regulator Enable input LM29151 and LM29152 versions feature and enable (EN) input that allows ON/OFF control of the device. Special design allows "zero" current drain when the device is disabled-only microamperes of leakage current flows. The EN input has TTL/CMOS compatible thresholds for simple interfacing with logic, or may be directly tied to ≤ 30V. Enabling the regulator requires approximately 20uA of current. Nov. 2009 - Rev. 1.2 - 11 - HTC