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| LT1117/LT1117-2.85 LT1117-3.3/LT1117-5 800mA Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 5V FEATURES s s s s s s s DESCRIPTIO Space Saving SOT-223 Surface Mount Package Three-Terminal Adjustable or Fixed 2.85V, 3.3V, 5V Output Current of 800mA Operates Down to 1V Dropout Guaranteed Dropout Voltage at Multiple Current Levels 0.2% Line Regulation Max 0.4% Load Regulation Max APPLICATI s s s s s S Active SCSI Terminators High Efficiency Linear Regulators Post Regulators for Switching Supplies Battery Chargers 5V to 3.3V Linear Regulators The LT1117 is a positive low dropout regulator designed to provide up to 800mA of output current. The device is available in an adjustable version and fixed output voltages of 2.85V, 3.3V and 5V. The 2.85V version is designed specifically to be used in Active Terminators for the SCSI bus. All internal circuitry is designed to operate down to 1V input to output differential. Dropout voltage is guaranteed at a maximum of 1.2V at 800mA, decreasing at lower load currents. On chip trimming adjusts the reference/output voltage to within 1%. Current limit is also trimmed in order to minimize the stress on both the regulator and the power source circuitry under overload conditions. The low profile surface mount SOT-223 package allows the device to be used in applications where space is limited. The LT1117 requires a minimum of 10F of output capacitance for stability. Output capacitors of this size or larger are normally included in most regulator designs. Unlike PNP type regulators where up to 10% of the output current is wasted as quiescent current, the quiescent current of the LT1117 flows into the load, increasing efficiency. TYPICAL APPLICATI Active Terminator for SCSI-2 Bus 1.4 Dropout Voltage (VIN - VOUT) 110 1.2 110 DROPOUT VOLTAGE (V) LT1117-2.85 IN 4.75V TO 5.25V OUT GND 10F 1.0 0.8 0.6 0.4 0.2 INDICATES GUARANTEED TEST POINT 0 0 100 200 300 400 500 600 700 800 OUTPUT CURRENT (mA) LT1117 * TPC01 110 18 TO 27 LINES + + 22F 110 LT1117 * TA01 U TJ = 25C TJ = 125C UO UO 1 LT1117/LT1117-2.85 LT1117-3.3/LT1117-5 ABSOLUTE AXI U RATI GS Operating JunctionTemperature Range ..... 0C to 125C Storage Temperature Range ................. - 65C to 150C Lead Temperature ................... (See Soldering Methods) Input Voltage Operating Voltage LT1117, LT1117-3.3, LT1117-5 ...................... 15V LT1117-2.85 ................................................... 10V Surge Voltage LT1117, LT1117-3.3, LT1117-5 ...................... 20V PACKAGE/ORDER I FOR ATIO FRONT VIEW 3 TAB IS VOUT 2 1 IN OUT ADJ/GND ST PACKAGE 3-LEAD PLASTIC SOT-223 TJ MAX = 125C,JC = 15C/W ORDER PART NUMBER LT1117CST LT1117CST-2.85 LT1117CST-3.3 LT1117CST-5 PART MARKING 1117 11173 11172 11175 Consult factory for Industrial and Military grade parts. ELECTRICAL CHARACTERISTICS PARAMETER Reference Voltage Output Voltage LT1117 LT1117-2.85 CONDITIONS IOUT = 10mA, (VIN - VOUT) = 2V, TJ = 25C 10 IOUT 800mA, 1.4V (VIN - VOUT) 10V IOUT = 10mA, VIN = 4.85V, TJ = 25C 0 IOUT 800mA, 4.25V VIN 10V 0 IOUT 500mA, VIN = 3.95V IOUT = 10mA, VIN = 5V, TJ = 25C 0 IOUT 800mA, 4.75V VIN 10V IOUT = 10mA, VIN = 7V, TJ = 25C 0 IOUT 800mA, 6.50V VIN 12V IOUT = 10mA, 1.5V VIN - VOUT 15V (Note 1) IOUT = 0mA, 4.25V VIN 10V (Note 1) IOUT = 0mA, 4.75V VIN 15V (Note 1) IOUT = 0mA, 6.5V VIN 15V (Note 1) (VIN - VOUT) = 3V, 10mA IOUT 800mA (Note 1) VIN = 4.25V, 0 IOUT 800mA (Note 1) VIN = 4.75V, 0 IOUT 800mA (Note 1) VIN = 6.5V, 0 IOUT 800mA (Note 1) IOUT = 100mA (Note 2) IOUT = 500mA (Note 2) IOUT = 800mA (Note 2) (VIN - VOUT) = 5V, TJ = 25C, LT1117 (VIN - VOUT) = 15V (Note 3) q q q q q q q q q q q q q q q q q LT1117-3.3 LT1117-5 Line Regulation LT1117 LT1117-2.85 LT1117-3.3 LT1117-5 LT1117 LT1117-2.85 LT1117-3.3 LT1117-5 Load Regulation Dropout Voltage Current Limit Minimum Load Current 2 U U W WW U W FRONT VIEW 3 TAB IS VOUT 2 1 M PACKAGE 3-LEAD PLASTIC DD TJ MAX = 125C,JC = 10C/W IN OUT ADJ/GND ORDER PART NUMBER LT1117CM LT1117CM-2.85 LT1117CM-3.3 LT1117CM-5 PART MARKING 1117 11173 11175 11172 MIN 1.238 1.225 2.820 2.790 2.790 3.267 3.235 4.950 4.900 TYP MAX UNITS V V V V V V V V V % mV mV mV % mV mV mV V V V mA mA 1.250 1.262 1.250 1.270 2.850 2.880 2.850 2.910 2.850 2.910 3.300 3.333 3.300 3.365 5.000 5.050 5.000 5.100 0.035 1 1 1 0.1 1 1 1 1.00 1.05 1.10 0.2 6 6 10 0.4 10 10 15 1.10 1.15 1.20 1200 5 800 950 1.7 LT1117/LT1117-2.85 LT1117-3.3/LT1117-5 ELECTRICAL CHARACTERISTICS PARAMETER Quiescent Current LT1117-2.85 LT1117-3.3 LT1117-5 CONDITIONS VIN 10V VIN 15V VIN 15V TA = 25C, 30ms Pulse fRIPPLE = 120Hz, (VIN - VOUT) = 3V, VRIPPLE = 1Vp-p 10mA IOUT 800mA, 1.4V (VIN - VOUT) 10V TA = 125C, 1000Hrs (% of VOUT), 10Hz f 10kHz (Junction-to-Case, at Tab) q q q q q q MIN TYP 5 5 5 0.01 MAX 10 10 10 0.1 UNITS mA mA mA %/W dB Thermal Regulation Ripple Rejection Adjust Pin Current Adjust Pin Current Change Temperature Stability Long Term Stability RMS Output Noise Thermal Resistance 60 75 55 0.2 0.5 0.3 0.003 15 120 5 A A % % % C/W The q denotes specifications which apply over the full operating temperature range. Note 1: See thermal regulation specification for changes in output voltage due to heating effects. Load regulation and line regulation are measured at a constant junction temperature by low duty cycle pulse testing. Note 2: Dropout voltage is specified over the full output current range of the device. Dropout voltage is defined as the minimum input/output differential measured at the specified output current. Test points and limits are also shown on the Dropout Voltage curve. Note 3: Minimum load current is defined as the minimum output current required to maintain regulation. TYPICAL PERFOR A CE CHARACTERISTICS Minimum Operating Current (Adjustable Device) 4 1.25 MINIMUM OPERATING CURRENT (mA) OUTPUT VOLTAGE DEVIATION (%) SHORT CIRCUIT CURRENT (A) 3 TJ = 125C TJ = 25C 2 TJ = -55C 1 0 0 5 10 15 20 INPUT/OUTPUT DIFFERENTIAL (V) LT1117 * TPC02 UW Short-Circuit Current 0.10 TJ = 125C TJ = 25C 0.75 Load Regulation ILOAD = 800mA 0.05 0 - 0.05 - 0.10 - 0.15 - 0.20 -50 1.00 0.50 0.25 0 0 5 10 15 LT1117 * TPC03 -25 0 25 50 75 100 125 INPUT/OUTPUT DIFFERENTIAL (V) TEMPERATURE (C) LT1117 * TPC04 3 LT1117/LT1117-2.85 LT1117-3.3/LT1117-5 TYPICAL PERFOR A CE CHARACTERISTICS LT1117 Ripple Rejection 100 90 80 VRIPPLE 3VP-P VRIPPLE 0.5VP-P RIPPLE REJECTION (dB) RIPPLE REJECTION (dB) 70 60 50 40 30 20 10 0 10 100 1k (VIN - VOUT) 3V 80 70 60 50 40 30 20 10 0 VOUT = 5V CADJ = 25F COUT = 25F 0 0.2 0.4 fRIPPLE = 120Hz VRIPPLE 3VP-P fRIPPLE = 20kHz VRIPPLE 0.5VP-P OUTPUT VOLTAGE CHANGE (%) (VIN - VOUT) VDROPOUT CADJ = 200F AT f < 60Hz CADJ = 25F AT f > 60Hz IOUT = 0.5A 10k 100k FREQUENCY (Hz) LT1117 * TPC05 Adjust Pin Current 100 OUPUT VOLTAGE DEVIATION (V) 90 0.2 0.1 0 - 0.1 - 0.2 CIN = 10F COUT = 10F TANTALUM VIN = 4.25V PRELOAD = 0.1A OUPUT VOLTAGE DEVIATION (V) AJUST PIN CURRENT (A) 80 70 60 50 40 LOAD CURRENT (A) 20 10 0 -50 -25 0 25 50 75 100 125 150 LT1117 * TPC08 0.5 0 - 0.5 0 10 20 30 40 50 60 70 80 90 100 LT1117 * TPC09 LOAD CURRENT (A) 30 TEMPERATURE (C) LT1117-2.8 Line Transient Response 60 OUPUT VOLTAGE DEVIATION (mV) 40 20 0 -20 -40 INPUT VOLTAGE (V) 5.25 4.25 3.25 0 20 40 60 80 100 120 140 160 180 200 TIME (s) LT1117 * TPC11 OUPUT VOLTAGE DEVIATION (mV) CIN = 1F COUT = 10F TANTALUM IOUT = 0.1A INPUT VOLTAGE (V) 4 UW LT1117 Ripple Rejection vs Current 100 90 Temperature Stability 2.0 1.0 0 -1.0 0.6 0.8 -2.0 -50 -25 0 25 50 75 100 125 150 LT1117 * TPC07 OUTPUT CURRENT (A) LT1117 * TPC06 TEMPERATURE (C) LT1117-2.85 Load Transient Response 0.3 0.3 0.2 0.1 0 - 0.1 - 0.2 0.5 0 - 0.5 LT1117-5 Load Transient Response CIN = 10F COUT = 10F TANTALUM VIN = 6.5V PRELOAD = 0.1A 0 10 20 30 40 50 60 70 80 90 100 LT1117 * TPC10 TIME (s) TIME (s) LT1117-5 Line Transient Response 60 40 20 0 -20 -40 7.50 6.50 5.50 0 20 40 60 80 100 120 140 160 180 200 TIME (s) LT1117 * TPC12 CIN = 1F COUT = 10F TANTALUM IOUT = 0.1A LT1117/LT1117-2.85 LT1117-3.3/LT1117-5 BLOCK DIAGRA GND APPLICATI HI TS When the adjust terminal is bypassed the required value of the output capacitor increases. The device will require an output capacitor of 22F tantalum or 150F aluminum electrolytic when the adjust pin is bypassed. Normally, capacitor values on the order of 100F are used in the output of many regulators to ensure good load transient response with large load current changes. Output capacitance can be increased without limit and larger values of output capacitance further improve stability and transient response. Protection Diodes In normal operation, the LT1117 family does not need any protection diodes. Older adjustable regulators required protection diodes between the adjust pin and the output and between the output and input to prevent over stressing the die. The internal current paths on the LT1117 adjust pin are limited by internal resistors. Therefore, even with capacitors on the adjust pin, no protection diode is needed to ensure device safety under short circuit conditions. The The LT1117 family of three-terminal regulators are easy to use. They are protected against short circuit and thermal overloads. Thermal protection circuitry will shutdown the regulator should the junction temperature exceed 165C at the sense point. These regulators are pin compatible with older three-terminal adjustable regulators, offer lower dropout voltage and more precise reference tolerance. Reference stability over temperature is improved over older types of regulators. Stability The LT1117 family of regulators requires an output capacitor as part of the device frequency compensation. A minimum of 10F of tantalum or 50F of aluminum electrolytic is required. The ESR of the output capacitor should be less than 0.5. Surface mount tantalum capacitors, which have very low ESR, are available from several manufacturers. When using the LT1117 adjustable device the adjust terminal can be bypassed to improve ripple rejection. W IN + - THERMAL LIMIT ADJ OUT FOR FIXED VOLTAGE DEVICE LT1117 * BD01 U UO 5 LT1117/LT1117-2.85 LT1117-3.3/LT1117-5 APPLICATI HI TS to set the overall output voltage. Normally this current is chosen to be the specified minimum load current of 10mA. Because IADJ is very small and constant when compared to the current through R1, it represents a small error and can usually be ignored. For fixed voltage devices R1 and R2 are included in the device. Load Regulation Because the LT1117 is a three-terminal device, it is not possible to provide true remote load sensing. Load regulation will be limited by the resistance of the wire connecting the regulator to the load. The data sheet specification for load regulation is measured at the output pin of the device. Negative side sensing is a true Kelvin connection, with the bottom of the output divider returned to the negative side of the load. Although it may not be immediately obvious, best load regulation is obtained when the top of the resistor divider (R1) is returned directly to the output pin of the device, not to the load. This is illustrated in Figure 3. Connected as shown, RP is not multiplied by the divider ratio. If R1 were connected to the load, the effective resistance between the regulator and the load would be: RP x Figure 1. adjust pin can be driven, on a transient basis, 25V with respect to the output without any device degradation. Diodes between input and output are not usually needed. The internal diode between the output and input pins of the device can withstand microsecond surge currents of 10A to 20A. Normal power supply cycling can not generate currents of this magnitude. Only with extremely large output capacitors, such as 1000F and larger, and with the input pin instantaneously shorted to ground can damage occur. A crowbar circuit at the input of the LT1117 in combination with a large output capacitor could generate currents large enough to cause damage. In this case a diode from output to input is recommended, as shown in Figure 1. D1 1N4002 (OPTIONAL) LT1117 VIN IN ADJ OUT R1 + CADJ 10F Output Voltage The LT1117 develops a 1.25V reference voltage between the output and the adjust terminal (see Figure 2). By placing a resistor between these two terminals, a constant current is caused to flow through R1 and down through R2 LT1117 VIN IN ADJ IADJ 50A OUT VREF R1 VOUT VIN IN R2 VOUT = VREF 1 + -- + IADJ R2 R1 () Figure 2. Basic Adjustable Regulator 6 U UO + VOUT COUT 150F R2 LT1117 * TA02 R2 + R1 ,RP = Parasitic Line Resistance R1 LT1117 OUT ADJ R1 CONNECT R1 TO CASE R2 RL RP PARASITIC LINE RESISTANCE CONNECT R2 TO LOAD LT1117 * TA04 R2 Figure 3. Connections for Best Load Regulation LT1117 * TA03 For fixed voltage devices the top of R1 is internally Kelvin connected, and the ground pin can be used for negative side sensing. LT1117/LT1117-2.85 LT1117-3.3/LT1117-5 APPLICATI HI TS The thermal resistance for each application will be affected by thermal interactions with other components on the board. Some experimentation will be necessary to determine the actual value. The power dissipation of the LT1117 is equal to: PD = ( VIN - VOUT )( IOUT ) Maximum junction temperature will be equal to: TJ = TA(MAX) + PD(Thermal Resistance (junction-toambient)) Maximum junction temperature must not exceed 125C. Ripple Rejection The curves for Ripple Rejection were generated using an adjustable device with the adjust pin bypassed. These curves will hold true for all values of output voltage. For proper bypassing, and ripple rejection approaching the values shown, the impedance of the adjust pin capacitor, at the ripple frequency, should be < R1. R1 is normally in the range of 100-200. The size of the required adjust pin capacitor is a function of the input ripple frequency. At 120Hz, with R1=100, the adjust pin capacitor should be > 13F. At 10kHz only 0.16F is needed. For fixed voltage devices, and adjustable devices without an adjust pin capacitor, the output ripple will increase as the ratio of the output voltage to the reference voltage (VOUT/ VREF). For example, with the output voltage equal to 5V, the output ripple will be increased by the ratio of 5V/ 1.25V. It will increase by a factor of four. Ripple rejection will be degraded by 12dB from the value shown on the curve. Thermal Considerations LT1117 series regulators have internal thermal limiting circuitry designed to protect the device during overload conditions. For continuous normal load conditions however, the maximum junction temperature rating of 125C must not be exceeded. It is important to give careful consideration to all sources of thermal resistance from junction to ambient. For the SOT-223 package, which is designed to be surface mounted, additional heat sources mounted near the device must also be considered. Heat sinking is accomplished using the heat spreading capability of the PC board and its copper traces. The thermal resistance of the LT1117 is 15C/W from the junction to the tab. Thermal resistances from tab to ambient can be as low as 30C/W. The total thermal resistance from junction to ambient can be as low as 45C/W. This requires a reasonable sized PC board with at least one layer of copper to spread the heat across the board and couple it into the surrounding air. Experiments have shown that the heat spreading copper layer does not need to be electrically connected to the tab of the device. The PC material can be very effective at transmitting heat between the pad area, attached to the tab of the device, and a ground plane layer either inside or on the opposite side of the board. Although the actual thermal resistance of the PC material is high, the Length/Area ratio of the thermal resistor between layers is small. The data in Table 1 was taken using 1/16" FR-4 board with 1oz. copper foil. It can be used as a rough guideline in estimating thermal resistance. Table 1. COPPER AREA TOPSIDE* 2500 Sq. mm 1000 Sq. mm 225 Sq. mm 100 Sq. mm 1000 Sq. mm 1000 Sq. mm BACKSIDE 2500 Sq. mm 2500 Sq. mm 2500 Sq. mm 2500 Sq. mm 1000 Sq. mm 0 BOARD AREA 2500 Sq. mm 2500 Sq. mm 2500 Sq. mm 2500 Sq. mm 1000 Sq. mm 1000 Sq. mm THERMAL RESISTANCE (JUNCTION-TO-AMBIENT) 45C/W 45C/W 53C/W 59C/W 52C/W 55C/W * Tab of device attached to topside copper U UO 7 LT1117/LT1117-2.85 LT1117-3.3/LT1117-5 TYPICAL APPLICATI 1.2V to 10V Adjustable Regulator LT1117 VIN IN ADJ OUT R1 121 VOUT VIN + C1* 10F R2 1k * NEEDED IF DEVICE IS FAR FROM FILTER CAPACITORS R2 V -- OUT = 1.25V 1 + R1 LT1117 * TA05 () VIN + 10F 121 100pF + RETURN Adjusting Output Voltage of Fixed Regulators LT1117-5 VIN > 12V 10F + IN GND OUT + 10F* 1k * OPTIONAL IMPROVES RIPPLE REJECTION LT1117 * TA08 8 UO S 5V Regulator with Shutdown LT1117 IN OUT ADJ 10F 1k TTL 1k 2N3904 121 1% 5V + + C2 100F + 100F 365 1% LT1117 * TA06 Remote Sensing LT1117 IN ADJ 100F 25 6 1 8 4 365 OUT RP (MAX. DROP 300mV) OUTPUT 5V + VIN 7 LM301A - + 2 RL 3 1k 5F RETURN 25 LT1117 * TA07 Regulator with Reference LT1117-5 + 5V TO 10V 100F VIN > 11.5V 10F + IN GND OUT + 10V 100F 5VOUT LT1029 LT1117 * TA09 LT1117/LT1117-2.85 LT1117-3.3/LT1117-5 TYPICAL APPLICATI LT1117 VIN IN 1.25V ADJ OUT Battery Charger IF RS R1 R2 VOUT - 1.25V 1 + -- R1 IF = R2 -RS 1 + -- R1 IF = VOUT R2 -RS 1 + -- R1 VOUT VIN Improving Ripple Rejection LT1117 VIN 10F + IN ADJ OUT R1 121 1% R2 365 * C1 IMPROVES RIPPLE 1% REJECTION. XC SHOULD BE R1 AT RIPPLE FREQUENCY UO + +VIN S Battery Backed Up Regulated Supply LT1117-5 + 10F IN GND OUT 5.2V LINE 5.0V BATTERY () () () LT1117 * TA10 50 SELECT FOR CHARGE RATE LT1117-5 IN GND OUT 1 6.5V + 10F + 100F LT1117 * TA13 Automatic Light Control LT1117 VIN 16.5V 10F 150F + IN ADJ OUT 1.2k 100F C1 10F LT1117 * TA14 LT1117 * TA16 High Efficiency Dual Supply FEEDBACK PATH MUR410 3.3V OUTPUT (TYPICAL) + 470F MUR410 IN LT1117-5 OUT GND 470F +5V 0.5A + + 10F 1N4002 MUR410 SWITCHING REGULATOR IN LT1117-5 OUT GND 470F + + 10F 1N4002 -5V 0.5A LT1117 * TA12 9 LT1117/LT1117-2.85 LT1117-3.3/LT1117-5 TYPICAL APPLICATI UO VIN S High Efficiency Dual Linear Supply L1 285H MBR360 (HEAT SINK) 2N6667 Q1 (DARLINGTON) 10k 1k LT1117-5 + 1000F 510k 30k V+ 2.4k IN GND OUT +5V 0.5A LT1004-2.5 + MDA201 + 100F 20k* 30.1k* D11 1N4002 + 4700F + - - 1/2 LT1018 130VAC90VAC STANCOR P-8685 (HEAT SINK) 2N6667 (DARLINGTON) L1 285H MBR360 10k 1k LT1117-5 + 1000F 510k 30k 2.4k IN GND OUT LT1004-2.5 + MDA201 + 100F 20k* 30.1k* D2 1N4002 + 4700F + 1/2 LT1018 V- - - -5V 0.5A LT1117 * TA11 * = 1 % FILM RESISTORS MDA = MOTOROLA L1 = PULSE ENGINEERING, INC. #PE-92106 Low Dropout Negative Supply LT1117-5 IN OUT GND 10F FLOATING INPUT + + 100F VOUT = -5V LT1117 * TA17 10 LT1117/LT1117-2.85 LT1117-3.3/LT1117-5 TYPICAL APPLICATI 28V INPUT 10k MR1122 10,000F SOLDERI G ETHODS The SOT-223 is manufactured with gull wing leadform for surface mount applications. The leads and heatsink are solder plated and allow easy soldering using non-active or mildly active fluxes. The package is constructed with three leads exiting one side of the package and one heatsink exiting the other side, and the die attached to the heatsink internally. The recommended methods of soldering SOT-223 are: vapor phase reflow and infrared reflow with preheat of component to within 65C of the solder temperature. Hand soldering and wave soldering are not recommended since these methods can easily damage the part with excessive thermal gradients across the package. Care must be exercised during surface mount to minimize large (> 30C per second) thermal shock to the package. Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. UO 1k S High Efficiency Regulator 1mH LT1117 + IN ADJ 470 OUT 240 2k OUTPUT ADJUST OUTPUT + 100F 28V 1N914 1M 4N28 10k + LT1011 - 1N914 10k 28V LT1117 * TA15 W U LT1117 * TA18 11 LT1117/LT1117-2.85 LT1117-3.3/LT1117-5 PACKAGE DESCRIPTIO 0.060 (1.524) 0.401 0.015 (10.185 0.381) 15 TYP ( +0.012 0.331 -0.020 +0.305 8.407 -0.508 ) 0.100 0.010 (2.5402 0.254) 0.050 0.008 (1.270 0.203) ( +0.012 0.143 -0.020 +0.305 3.632 -0.508 ) 0.248 - 0.264 (6.30 - 6.71) 0.116 - 0.124 (2.95 - 3.15) 10 - 16 0.264 - 0.287 (6.71 - 7.29) 0.130 - 0.146 (3.30 - 3.71) 0.071 (1.80) MAX 0.025 - 0.033 (0.64 - 0.84) 0.181 (4.60) NOM 0.012 (0.31) MIN 10 - 16 0.0008 - 0.0040 (0.0203 - 0.1016) SOT233 0793 0.090 (2.29) NOM 12 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7487 (408) 432-1900 q FAX: (408) 434-0507 q TELEX: 499-3977 U Dimensions in inches (millimeters) unless otherwise noted. M Package 3-Lead Plastic DD 0.175 0.008 (4.445 0.203) 0.050 0.008 (1.270 0.203) +0.008 0.004 -0.004 0.059 (1.499) TYP ( +0.203 0.102 -0.102 ) 0.105 0.008 (2.667 0.203) 0.022 0.005 (0.559 0.127) 0.050 0.012 (1.270 0.305) DD3 0693 ST Package 3-Lead Plastic SOT-223 10 MAX 0.010 - 0.014 (0.25 - 0.36) 0.033 - 0.041 (0.84 - 1.04) LT/GP 0993 5K REV B (c) LINEAR TECHNOLOGY CORPORATION 1993 |
Price & Availability of LT1117CST-285
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